CN117081207B - DC pulse charging method, device, equipment and medium for rechargeable battery - Google Patents

Abstract

The present invention discloses a DC pulse charging method, device, equipment and medium for rechargeable batteries. The method includes: if a charging voltage is detected, judging whether the basic charging information of the rechargeable battery meets the preset oscillation charging conditions; if the basic charging information meets the oscillation charging conditions, obtaining an oscillation charging strategy corresponding to the basic charging information and the basic parameter information of the rechargeable battery according to the preset configuration rules; according to the oscillation charging strategy, controlling the charging circuit to output a DC pulse current to the rechargeable battery so that the piezoelectric ceramic coated diaphragm oscillates. The above-mentioned DC pulse charging method can intelligently judge whether the rechargeable battery currently meets the oscillation charging conditions. If so, the corresponding oscillation charging strategy is obtained and the charging circuit is controlled to output a DC pulse current to charge the rechargeable battery. The piezoelectric ceramic coated diaphragm is driven to vibrate by the DC pulse current to eliminate the dendrites on the pole piece, which greatly improves the application effect of dendrite elimination.

Description

DC pulse charging method, device, equipment and medium for rechargeable battery

Technical Field

The present invention relates to the field of intelligent charging technology, and in particular to a direct current pulse charging method, device, equipment and medium for a rechargeable battery.

Background Art

With the rapid development of new energy technology, rechargeable batteries are widely used in various electrical appliances; however, in actual application, after repeated charging and discharging, the electrochemical properties of metal ions on the motor pole piece will change and deposit to form dendrites. After the dendrites are generated, the coulomb efficiency of the battery will be seriously reduced, and the diaphragm set on the inner side of the pole piece will be damaged, which will affect the charging efficiency and effective charging capacity of the rechargeable battery; at the same time, after the dendrites are generated, the charging heat will be significantly increased, which will have a serious impact on the charging safety of the battery. In the traditional technical method, ultrasonic vibration is used to generate vibration to eliminate dendrites, but the ultrasonic vibration has weak penetration, so the application effect is not ideal; in the prior art method, AC pulse energy is also used to input the rechargeable battery to eliminate dendrites, but AC pulse energy cannot charge the battery, so the AC pulse energy generating device is usually not assembled with the rechargeable battery, so the cost is high in the actual application process and the dendrite elimination operation cannot be adaptively performed according to the actual charging situation. Therefore, the prior art method has the problem of poor treatment effect when performing dendrite elimination treatment on the rechargeable battery pole piece.

Summary of the invention

The embodiments of the present invention provide a DC pulse charging method, device, equipment and medium for a rechargeable battery, aiming to solve the problem of poor treatment effect when performing dendrite elimination treatment on a rechargeable battery pole piece in the prior art method.

In a first aspect, an embodiment of the present invention provides a DC pulse charging method for a rechargeable battery, wherein the method is applied to a charging controller, the charging controller is electrically connected to a positive electrode sheet and a negative electrode sheet of the rechargeable battery through a charging circuit, and the diaphragm disposed inside the positive electrode sheet and the negative electrode sheet is a piezoelectric ceramic coated diaphragm, and the method comprises:

If the charging voltage is detected, determining whether the basic charging information of the rechargeable battery meets the preset oscillation charging condition;

If the basic charging information satisfies the oscillating charging condition, acquiring an oscillating charging strategy corresponding to the basic charging information and the basic parameter information of the rechargeable battery according to a preset configuration rule;

The charging circuit is controlled to output a direct current pulse current to the rechargeable battery according to the oscillation charging strategy, so that the piezoelectric ceramic coated diaphragm oscillates.

In a second aspect, an embodiment of the present invention further provides a DC pulse charging device for a rechargeable battery, wherein the device is configured in a charging controller, the charging controller is electrically connected to the positive electrode sheet and the negative electrode sheet of the rechargeable battery through a charging circuit, and the diaphragm configured on the inner side of the positive electrode sheet and the inner side of the negative electrode sheet is a piezoelectric ceramic coated diaphragm, and the device is used to perform the DC pulse charging method for a rechargeable battery described in the first aspect above, and the device includes:

an oscillation charging condition judgment unit, configured to judge whether the charging basic information of the rechargeable battery satisfies a preset oscillation charging condition if a charging voltage is detected;

an oscillation charging strategy acquisition unit, configured to acquire, if the charging basic information satisfies the oscillation charging condition, an oscillation charging strategy corresponding to the charging basic information and the basic parameter information of the rechargeable battery according to a preset configuration rule;

An oscillation charging control unit is used to control the charging circuit to output a direct current pulse current to the rechargeable battery according to the oscillation charging strategy, so as to cause the piezoelectric ceramic coated diaphragm to oscillate.

In a third aspect, an embodiment of the present invention further provides a computer device, wherein the device includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus;

Memory, used to store computer programs;

The processor is used to implement the steps of the DC pulse charging method for a rechargeable battery described in the first aspect when executing the program stored in the memory.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the DC pulse charging method for a rechargeable battery as described in the first aspect above are implemented.

The embodiment of the present invention provides a DC pulse charging method, device, equipment and medium for rechargeable batteries, the method comprising: if the charging voltage is detected, judging whether the charging basic information of the rechargeable battery meets the preset oscillation charging condition; if the charging basic information meets the oscillation charging condition, obtaining the oscillation charging strategy corresponding to the charging basic information and the basic parameter information of the rechargeable battery according to the preset configuration rules; according to the oscillation charging strategy, controlling the charging circuit to output a DC pulse current to the rechargeable battery, so that the piezoelectric ceramic coated diaphragm oscillates. The above-mentioned DC pulse charging method for rechargeable batteries can intelligently judge whether the rechargeable battery currently meets the oscillation charging condition, and if so, automatically match and obtain the oscillation charging strategy and control the charging circuit to output a DC pulse current to charge the rechargeable battery. During the charging process, the piezoelectric ceramic coated diaphragm is driven to vibrate by the DC pulse current to eliminate the dendrites on the pole piece, which greatly improves the application effect of eliminating dendrites on the pole piece of the rechargeable battery.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

FIG1 is a flow chart of a DC pulse charging method for a rechargeable battery provided by an embodiment of the present invention;

FIG2 is a schematic diagram of an application scenario of a DC pulse charging method for a rechargeable battery provided by an embodiment of the present invention;

FIG3 is a schematic block diagram of a DC pulse charging device for a rechargeable battery provided in an embodiment of the present invention;

FIG. 4 is a schematic block diagram of a computer device provided in an embodiment of the present invention.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and/or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or combinations thereof.

It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

It should be further understood that the term "and/or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

Please refer to FIG. 1 and FIG. 2. As shown in the figure, the embodiment of the present invention provides a DC pulse charging method for a rechargeable battery. The DC pulse charging method for a rechargeable battery is applied to a charging controller 10. The charging controller 10 is electrically connected to the positive electrode plate and the negative electrode plate of the rechargeable battery 30 through the charging circuit 20. The diaphragm disposed inside the positive electrode plate and the negative electrode plate is a piezoelectric ceramic coated diaphragm. The charging controller 10 is a terminal device for executing the above-mentioned DC pulse charging method to realize DC pulse charging control of the rechargeable battery 30. For example, the charging controller 10 can be a control circuit configured with an MCU chip. The charging circuit 20 is a circuit connected to the positive electrode plate and the negative electrode plate of the rechargeable battery 30 and used to output a DC current. The charging controller 10 is connected to the charging circuit 20 in communication, and the DC current output by the charging circuit 20 can be controlled by outputting a control signal through the charging controller 10. The rechargeable battery 30 may include a primary battery cell structure composed of a positive electrode sheet and a negative electrode sheet, and the rechargeable battery 30 may also include a multi-stage battery cell structure composed of multiple positive electrode sheets and multiple negative electrode sheets. A positive electrode sheet and a negative electrode sheet form a primary battery cell structure, and the multi-stage battery cell structure is composed of multiple battery cell structures connected in series. A diaphragm is provided inside the positive electrode sheet and the negative electrode sheet, and the diaphragm is a piezoelectric ceramic coated diaphragm. The piezoelectric ceramic coated diaphragm can be driven to vibrate by outputting a specific form of direct current. As shown in FIG. 1 , the method includes steps S110 to S130.

S110: If the charging voltage is detected, determine whether the basic charging information of the rechargeable battery meets a preset oscillation charging condition.

If the charging voltage is detected, it is determined whether the basic charging information of the rechargeable battery meets the preset oscillation charging conditions. The charging controller monitors and controls the charging circuit in real time. When the user connects the output port of the adapter to the charging circuit, the charging controller can detect that the charging voltage is applied to the input end of the charging circuit. If the charging controller monitors the charging voltage through the charging circuit, it determines whether the basic charging information meets the pre-configured oscillation charging conditions. The oscillation charging conditions are specific conditions for judging the basic charging information of the rechargeable battery. Among them, the basic charging information is the basic information recorded in the charging controller for charging operations on the rechargeable battery. The basic charging information at least includes the current power value, charging interval time, cumulative charging times, cumulative charging time and charging frequency. The current power value is the ratio between the current available power of the rechargeable battery and the rated power; the charging interval time is the interval time between the current charging time and the last charging time, and the unit of the charging interval time is hours; the cumulative charging times is the cumulative number of times the rechargeable battery is charged; the cumulative charging time is the cumulative charging time of the rechargeable battery, and the unit of the cumulative charging time is minutes; the charging frequency is the number of times the rechargeable battery is charged per unit time, such as the average number of times the rechargeable battery is charged in a month.

In a specific embodiment, step S110 includes sub-steps: calculating the charging basic information according to the judgment coefficient calculation formula in the oscillation charging condition to obtain a corresponding judgment coefficient value; judging whether the judgment coefficient value exceeds the oscillation coefficient threshold in the oscillation charging condition, thereby judging whether the charging basic information meets the oscillation charging condition.

Specifically, the charging interval time, cumulative charging times, and cumulative charging time in the basic charging information can be calculated according to the judgment coefficient calculation formula in the oscillation charging condition to obtain the judgment coefficient value, and further judge whether the judgment coefficient value exceeds the oscillation coefficient threshold. If the judgment coefficient value exceeds the oscillation coefficient threshold, it is determined that the basic charging information meets the oscillation charging condition. At this time, it is necessary to perform DC pulse charging on the rechargeable battery to eliminate the harm of dendrite growth; if the judgment coefficient value does not exceed the oscillation coefficient threshold, it is determined that the basic charging information does not meet the oscillation charging condition, and there is no need to perform DC pulse charging on the rechargeable battery.

Specifically, the coefficient calculation formula can be expressed by formula (1):

Wherein, J is the charging interval, C is the cumulative number of charging times, L is the cumulative charging time, e is the base of the natural logarithm, and _Pz is the calculated judgment coefficient value.

According to the calculated judgment coefficient value, it can be judged whether the judgment coefficient value exceeds the oscillation coefficient threshold value, thereby obtaining a corresponding judgment result.

In a specific embodiment, after determining whether the basic charging information of the rechargeable battery meets the preset oscillation charging condition, it also includes: if the basic charging information does not meet the oscillation charging condition, controlling the charging circuit to output a normal direct current to the rechargeable battery.

If the basic charging information does not meet the oscillation charging conditions, the charging controller can control the charging circuit to output ordinary DC current to charge the rechargeable battery. For example, the charging controller controls the charging circuit to output 5V, 1.2A ordinary DC current to charge the rechargeable battery. During this process, the voltage and current of the ordinary DC current output to the rechargeable battery remain constant.

S120: If the basic charging information satisfies the oscillating charging condition, an oscillating charging strategy corresponding to the basic charging information and the basic parameter information of the rechargeable battery is obtained according to a preset configuration rule.

If the basic charging information satisfies the oscillating charging condition, an oscillating charging strategy corresponding to the basic charging information and the basic parameter information of the rechargeable battery is obtained according to the preset configuration rules. The configuration rules are pre-configured in the charging controller, and the basic parameter information of the rechargeable battery is also recorded in the charging controller. The basic parameter information is parameter information used to record the basic physical and chemical properties of the rechargeable battery. The basic parameter information at least includes inter-electrode spacing, inter-electrode unit area, and battery cell level. Among them, the inter-electrode spacing is the distance value between the positive electrode plate and the negative electrode plate. Generally speaking, the inter-electrode spacing of each battery cell structure in the same rechargeable battery is equal, and the unit is millimeter; the inter-electrode unit area is the cross-sectional area in the battery cell structure, and the unit is square centimeter; the battery cell level is the number of battery cell structures contained in the rechargeable battery. If the basic charging information meets the oscillation charging conditions, the oscillation charging strategy corresponding to the basic charging information and the basic parameter information can be obtained according to the configuration rules. The oscillation charging strategy is a specific control strategy for outputting pulsed direct current to charge the rechargeable battery. The corresponding pulsed direct current is output according to the oscillation charging strategy, which can drive the piezoelectric ceramic-coated diaphragm on the inner side of the battery electrode to vibrate. The vibration can cause the metal ion crystals on the diaphragm to break, thereby effectively preventing the generation of crystal nuclei and eliminating the harm of dendrite growth.

In a specific embodiment, step S120 includes sub-steps: obtaining a single oscillation duration and a basic pulse frequency that match the basic parameter information according to the configuration rules; calculating the charging interval time, the cumulative number of charging times and the cumulative charging duration in the basic parameter information and the charging basic information according to the intensity calculation formula in the configuration rules to obtain a corresponding intensity calculation value; obtaining the number of pulse segments that matches the intensity calculation value in the segment matching table of the configuration rules; combining the single oscillation duration, the basic pulse frequency and the number of pulse segments into the corresponding oscillation charging strategy.

Specifically, the single oscillation duration and basic pulse frequency that match the basic parameter information can be first obtained according to the configuration rules. To improve the oscillation effect, the basic pulse frequency that matches the basic parameter information can be first obtained. By oscillating at a pulse frequency that matches the physical and chemical characteristics of the rechargeable battery, the oscillation effect on different types of rechargeable batteries can be greatly improved.

Specifically, the basic pulse frequency corresponding to the inter-electrode spacing in the basic parameter information can be obtained according to the frequency mapping configuration table in the configuration rule. For example, the inter-electrode spacing of a certain rechargeable battery is 15mm, and the interval corresponding to the inter-electrode spacing in the frequency mapping table is [12mm, 20mm), and the corresponding basic pulse frequency _f0 is further determined to be 50kHz. The maximum pulse frequency of pulsed direct current can reach 700kHz.

Afterwards, the single oscillation duration that matches the basic parameter information can be obtained according to the configuration rules, and the single oscillation duration is also the duration of a pulse DC charging. In order to improve the application effect, during the process of charging the rechargeable battery once, multiple pulse DC charging can be performed accordingly, and ordinary DC current is output for charging between two adjacent pulse DC charging. Specifically, the acquisition of the single oscillation duration that matches the basic parameter information according to the configuration rules includes: acquiring the single oscillation duration that matches the basic parameter information according to the duration matching section in the configuration rules; or, calculating the basic parameter information according to the duration calculation formula in the configuration rules to obtain a matching single oscillation duration.

Specifically, the inter-pole unit area and the number of battery cell levels in the basic parameter information can be matched according to the duration matching section, so as to obtain the corresponding single oscillation duration. The duration matching section contains multiple duration values, each of which corresponds to an area interval and a series interval. The inter-pole unit area and the number of battery cell levels in the basic parameter information can be matched with the area interval and the series interval contained in each duration value, so as to obtain the duration value corresponding to the area interval and the inter-pole unit area and the series interval and the number of battery cell levels as the matching single oscillation duration. Alternatively, the inter-pole unit area and the number of battery cell levels in the basic parameter information can be calculated according to the duration calculation formula in the configuration rule, so as to obtain the matching single oscillation duration. Specifically, the duration calculation formula can be expressed by formula (2):

D _s = d × S × lnN (2);

Wherein, d is the unit time coefficient, for example, d is set to 5 seconds/cm ² , S is the inter-electrode unit area, N is the number of battery unit stages, and D _s is the calculated single oscillation duration.

According to the intensity calculation formula in the configuration rule, the inter-electrode spacing, the number of battery cell levels in the basic parameter information and the charging interval time, the cumulative number of charging times and the cumulative charging time in the charging basic information are calculated to obtain the corresponding intensity calculation value; the intensity calculation value can be used to reflect the oscillation intensity corresponding to the DC pulse charging, and further, the number of pulse segments matching the intensity calculation value in the segment matching table of the configuration rule can be obtained; if the intensity calculation value is larger, the corresponding number of pulse segments obtained will also be larger.

The strength calculation formula can be expressed by formula (3):

Among them, J is the charging interval time, C is the cumulative number of charges, L is the cumulative charging time, e is the natural logarithm base, R is the inter-electrode spacing, N is the number of battery cells, and Q is the calculated strength value.

The segment matching table is configured with multiple intensity intervals, each intensity interval corresponds to a segment number, and the intensity calculation value can be matched with the multiple intensity intervals in the segment configuration table to obtain a segment number corresponding to the intensity interval to which the intensity calculation value belongs as the pulse segment number matching the intensity calculation value.

Specifically, the single oscillation duration, basic pulse frequency and number of pulse segments obtained in the above steps are combined into a corresponding oscillation charging strategy, and the obtained oscillation charging strategy is a pulsed DC charging strategy that matches the current state of the rechargeable battery.

Furthermore, when the number of pulse segments is greater than 2, the pulse interval duration needs to be configured accordingly, which is the interval time between two pulse DC charging. The pulse interval duration can be determined based on the current power value and the number of pulse segments in the basic charging information, and the determined pulse interval duration can be configured in the above oscillation charging strategy. Specifically, the remaining charging time can be estimated based on the current power value, and the pulse interval duration can be determined based on the estimated remaining charging time.

For example, the corresponding pulse interval duration may be determined according to the pulse interval calculation formula in the configuration rule. The pulse interval calculation formula may be expressed using formula (4):

Where D is the current power value, and the value range of D is [0,1), _t0 is the basic charging time (the time from the current power value of 0 to full charge), F is the number of pulse segments, e is the base of the natural logarithm, and _tj is the calculated pulse interval duration.

In a specific embodiment, after obtaining the number of pulse segments in the segment matching table of the configuration rule that matches the intensity calculation value, it also includes: adjusting the basic pulse frequency and the basic parameter information according to the frequency adjustment formula in the configuration rule to obtain the corresponding charging pulse frequency segment; combining the single oscillation duration, the charging pulse frequency segment and the number of pulse segments into a corresponding oscillation charging strategy.

In order to improve the effect of eliminating dendrites during the pulsed DC charging process, the basic pulse frequency can be adjusted according to the basic parameter information to obtain the charging pulse frequency range, and the pulsed DC with a continuously changing frequency can be output within the charging pulse frequency range to charge the rechargeable battery, thereby avoiding the generation of a single frequency pulsed DC corresponding to the basic pulse frequency that cannot efficiently eliminate dendrites. Specifically, the frequency modulation formula can be expressed by formula (5):

Among them, R is the inter-electrode spacing, S is the inter-electrode unit area, N is the number of battery unit series, T is the calculated adjustment coefficient value, _N0 is the basic series coefficient corresponding to the basic pulse frequency, _R0 is the basic spacing coefficient corresponding to the basic pulse frequency, and _S0 is the basic unit series coefficient corresponding to the basic pulse frequency.

If the calculated adjustment coefficient value is greater than 1, the basic pulse frequency can be represented by _f0 , and the charging pulse frequency segment obtained by adjusting the basic pulse frequency according to the adjustment coefficient value is [ _f0 /T, _Tf0 ]; if the calculated adjustment coefficient value is not greater than 1, the charging pulse frequency segment obtained by adjusting the basic pulse frequency according to the adjustment coefficient value is [ _Tf0 , _f0 /T].

The single oscillation duration, charging pulse frequency range and number of pulse segments obtained in the above steps are combined into a corresponding oscillation charging strategy, and the obtained oscillation charging strategy is a pulsed DC charging strategy that matches the current state of the rechargeable battery.

In a specific embodiment, after calculating the oscillation charging interval time, the cumulative number of charging times and the cumulative charging duration in the charging basic information according to the intensity calculation formula in the configuration rule to obtain the corresponding intensity calculation value, it also includes: calculating the charging frequency in the charging basic information according to the intensity correction calculation formula in the configuration rule to obtain the corresponding intensity correction value; and correcting the intensity calculation value according to the intensity correction value to obtain the corrected intensity calculation value.

Furthermore, in order to improve the accuracy of the calculated intensity calculation value, the charging frequency in the basic charging information can be calculated according to the intensity correction calculation formula in the configuration rule to obtain an intensity correction value; the obtained intensity calculation value is corrected according to the intensity correction value to obtain a corrected intensity coefficient value. The intensity correction calculation formula can be expressed by formula (6):

Wherein, _Pf is the charging frequency in the basic charging information, _P0 is the basic charging frequency coefficient preset in the formula, and X is the calculated intensity correction value. The obtained intensity correction value is multiplied by the intensity calculation value, so as to correct the intensity calculation value and obtain the corrected intensity coefficient value, and the matching pulse segment number is obtained according to the intensity coefficient value, so as to improve the accuracy of the obtained pulse segment number.

S130, controlling the charging circuit to output a direct current pulse current to the rechargeable battery according to the oscillation charging strategy, so as to cause the piezoelectric ceramic coated diaphragm to oscillate.

According to the oscillation charging strategy, the charging circuit is controlled to output a DC pulse current to the rechargeable battery so that the piezoelectric ceramic coated diaphragm oscillates. According to the oscillation charging strategy, the charging circuit is controlled to output a corresponding DC pulse current to the rechargeable battery; the DC pulse current increases from 0 to the maximum current value, and then decreases from the maximum current value to 0. This process is also a complete pulse cycle, and the pulse frequency corresponds to the basic pulse frequency or the charging pulse frequency segment. The piezoelectric ceramic coated diaphragm generates a reciprocating vibration of a corresponding frequency according to the pulse frequency of the DC pulse current, thereby accelerating the passage speed of the electrolytic ions in the battery, improving the charging efficiency, and causing the metal ions on the diaphragm to crystallize and break through vibration. Therefore, this DC pulse charging method can effectively prevent the generation of crystal nuclei, eliminate the hazard of dendrite growth, and improve the safety of battery charging. Specifically, if the basic pulse frequency is configured in the oscillation charging strategy, a DC pulse current is generated with the basic pulse frequency as a fixed pulse frequency; if the charging pulse frequency segment is configured in the drag oscillation charging strategy, the pulse frequency of the DC pulse current changes cyclically within the charging pulse frequency segment. The duration of each DC pulse current is controlled by the duration of a single oscillation, and the number of DC pulse currents is controlled by the number of pulse segments. The interval between two DC pulse currents generates a normal DC current to charge the rechargeable battery.

In the DC pulse charging method, device, equipment and medium for rechargeable batteries provided in the embodiments of the present invention, the method includes: if the charging voltage is detected, judging whether the basic charging information of the rechargeable battery meets the preset oscillation charging conditions; if the basic charging information meets the oscillation charging conditions, obtaining the oscillation charging strategy corresponding to the basic charging information and the basic parameter information of the rechargeable battery according to the preset configuration rules; according to the oscillation charging strategy, controlling the charging circuit to output a DC pulse current to the rechargeable battery so that the piezoelectric ceramic coated diaphragm oscillates. The above-mentioned DC pulse charging method for rechargeable batteries can intelligently judge whether the rechargeable battery currently meets the oscillation charging conditions. If it does, it automatically matches and obtains the oscillation charging strategy and controls the charging circuit to output a DC pulse current to charge the rechargeable battery. During the charging process, the piezoelectric ceramic coated diaphragm is driven to vibrate by the DC pulse current to eliminate the dendrites on the pole piece, which greatly improves the application effect of eliminating dendrites on the pole piece of the rechargeable battery.

The embodiment of the present invention also provides a DC pulse charging device for a rechargeable battery, which can be configured in a charging controller, and is used to perform any embodiment of the aforementioned DC pulse charging method for a rechargeable battery. Specifically, please refer to FIG3, which is a schematic block diagram of the DC pulse charging device for a rechargeable battery provided by an embodiment of the present invention.

As shown in FIG. 3 , the DC pulse charging device 100 for charging a battery includes an oscillation charging condition determination unit 110 , an oscillation charging strategy acquisition unit 120 and an oscillation charging control unit 130 .

The oscillation charging condition judgment unit 110 is used to judge whether the charging basic information of the rechargeable battery meets the preset oscillation charging condition if the charging voltage is detected.

The oscillation charging strategy acquisition unit 120 is configured to acquire, if the charging basic information satisfies the oscillation charging condition, an oscillation charging strategy corresponding to the charging basic information and the basic parameter information of the rechargeable battery according to a preset configuration rule.

The oscillation charging control unit 130 is used to control the charging circuit to output a direct current pulse current to the rechargeable battery according to the oscillation charging strategy, so as to make the piezoelectric ceramic coated diaphragm oscillate.

The DC pulse charging device for rechargeable batteries provided in the embodiment of the present invention applies the above-mentioned DC pulse charging method for rechargeable batteries. If the charging voltage is detected, it is determined whether the basic charging information of the rechargeable battery meets the preset oscillation charging conditions; if the basic charging information meets the oscillation charging conditions, the oscillation charging strategy corresponding to the basic charging information and the basic parameter information of the rechargeable battery is obtained according to the preset configuration rules; according to the oscillation charging strategy, the charging circuit is controlled to output a DC pulse current to the rechargeable battery so that the piezoelectric ceramic-coated diaphragm oscillates. The above-mentioned DC pulse charging method for rechargeable batteries can intelligently determine whether the rechargeable battery currently meets the oscillation charging conditions. If it does, it automatically matches and obtains the oscillation charging strategy and controls the charging circuit to output a DC pulse current to charge the rechargeable battery. During the charging process, the piezoelectric ceramic-coated diaphragm is driven to vibrate by the DC pulse current to eliminate the dendrites on the pole piece, which greatly improves the application effect of eliminating dendrites on the pole piece of the rechargeable battery.

The DC pulse charging device for charging a battery can be implemented in the form of a computer program, and the computer program can be run on a computer device as shown in FIG. 4 .

Please refer to Fig. 4, which is a schematic block diagram of a computer device provided by an embodiment of the present invention. The computer device may be a charging controller for executing a DC pulse charging method for a rechargeable battery to implement DC pulse charging control for the rechargeable battery 30.

4 , the computer device 500 includes a processor 502 , a memory, and a network interface 505 connected via a communication bus 501 , wherein the memory may include a storage medium 503 and an internal memory 504 .

The storage medium 503 can store an operating system 5031 and a computer program 5032. When the computer program 5032 is executed, the processor 502 can execute a DC pulse charging method for a rechargeable battery, wherein the storage medium 503 can be a volatile storage medium or a non-volatile storage medium.

The processor 502 is used to provide computing and control capabilities to support the operation of the entire computer device 500 .

The internal memory 504 provides an environment for the operation of the computer program 5032 in the storage medium 503. When the computer program 5032 is executed by the processor 502, the processor 502 can execute a DC pulse charging method for charging a battery.

The network interface 505 is used for network communication, such as providing transmission of data information, etc. Those skilled in the art can understand that the structure shown in FIG4 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation on the computer device 500 to which the solution of the present invention is applied. The specific computer device 500 may include more or less components than those shown in the figure, or combine some components, or have a different arrangement of components.

The processor 502 is used to run the computer program 5032 stored in the memory to implement the corresponding functions of the above-mentioned DC pulse charging method for charging a battery.

Those skilled in the art will appreciate that the embodiment of the computer device shown in FIG4 does not constitute a limitation on the specific composition of the computer device. In other embodiments, the computer device may include more or fewer components than shown, or combine certain components, or arrange the components differently. For example, in some embodiments, the computer device may only include a memory and a processor. In such an embodiment, the structure and function of the memory and the processor are consistent with the embodiment shown in FIG4, and will not be described in detail here.

It should be understood that in the embodiment of the present invention, the processor 502 may be a central processing unit (CPU), and the processor 502 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

In another embodiment of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium may be a volatile or non-volatile computer-readable storage medium. The computer-readable storage medium stores a computer program, wherein when the computer program is executed by a processor, the steps included in the DC pulse charging method for a rechargeable battery are implemented.

Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the above-described equipment, devices and units can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. Those of ordinary skill in the art can appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to the function. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

In the several embodiments provided by the present invention, it should be understood that the disclosed equipment, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. Units with the same function may also be combined into one unit. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, or may be an electrical, mechanical or other form of connection.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a computer-readable storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned computer-readable storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a magnetic disk or an optical disk.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims (9)

1. The direct current pulse type charging method for the rechargeable battery is characterized in that the method is applied to a charging controller, the charging controller is electrically connected with a positive pole piece and a negative pole piece of the rechargeable battery through a charging circuit, diaphragms configured on the inner side of the positive pole piece and the inner side of the negative pole piece are piezoelectric ceramic cladding diaphragms, and the method comprises the following steps:

If the charging voltage is detected, judging whether charging basic information of the rechargeable battery meets preset oscillation charging conditions or not;

if the charging basic information meets the oscillation charging condition, acquiring an oscillation charging strategy corresponding to the charging basic information and basic parameter information of the rechargeable battery according to a preset configuration rule;

Controlling the charging circuit to output direct current pulse current to the rechargeable battery according to the oscillation charging strategy so as to enable the piezoelectric ceramic coated diaphragm to oscillate;

the obtaining the oscillation charging strategy corresponding to the charging basic information and the basic parameter information of the rechargeable battery according to the preset configuration rule comprises the following steps:

acquiring single oscillation duration and basic pulse frequency matched with the basic parameter information according to the configuration rule;

Calculating the basic parameter information and the charging interval time, the charging accumulation times and the charging accumulation duration in the charging basic information according to an intensity calculation formula in the configuration rule to obtain a corresponding intensity calculation value;

Acquiring the number of pulse segments matched with the intensity calculated value in a segment matching table of the configuration rule;

and combining the single oscillation duration, the basic pulse frequency and the pulse segmentation number into the corresponding oscillation charging strategy.

2. The direct current pulse charging method for a rechargeable battery according to claim 1, wherein said determining whether the charging basis information of the rechargeable battery satisfies a preset oscillating charging condition comprises:

Calculating the charging basic information according to a judgment coefficient calculation formula in the oscillation charging condition to obtain a corresponding judgment coefficient value;

And judging whether the judgment coefficient value exceeds an oscillation coefficient threshold value in the oscillation charging condition, so as to judge whether the charging basic information meets the oscillation charging condition.

3. The direct current pulse charging method for a rechargeable battery according to claim 1, wherein the acquiring a single oscillation duration matched with the basic parameter information according to the configuration rule comprises:

Acquiring single oscillation time length matched with the basic parameter information according to a time length matching section in the configuration rule;

Or, calculating the basic parameter information according to a duration calculation formula in the configuration rule to obtain the matched single oscillation duration.

4. The direct current pulse charging method for a rechargeable battery according to claim 1 or 3, wherein after said obtaining the number of pulse segments matching the intensity calculation value in the segment matching table of the configuration rule, further comprises:

adjusting the basic pulse frequency and the basic parameter information according to a frequency adjustment formula in the configuration rule to obtain a corresponding charging pulse frequency segment;

And combining the single oscillation duration, the charging pulse frequency segment and the pulse segmentation number into a corresponding oscillation charging strategy.

5. The method for charging a rechargeable battery according to claim 4, wherein the calculating the oscillation charging interval time, the charging accumulation number and the charging accumulation duration in the charging basic information according to the intensity calculation formula in the configuration rule, after obtaining the corresponding intensity calculation value, further comprises:

Calculating the charging frequency in the charging basic information according to the intensity correction calculation formula in the configuration rule to obtain a corresponding intensity correction value;

And correcting the intensity calculated value according to the intensity correction value to obtain a corrected intensity calculated value.

6. The direct current pulse charging method for a rechargeable battery according to any one of claims 1 to 3, wherein after said determining whether the charging basis information of the rechargeable battery satisfies a preset oscillating charging condition, further comprising:

And if the charging basic information does not meet the oscillation charging condition, controlling the charging circuit to output common direct current to the rechargeable battery.

7. A direct current pulse type charging device for a rechargeable battery, wherein the device is configured in a charging controller, the charging controller is electrically connected with a positive pole piece and a negative pole piece of the rechargeable battery through a charging circuit, diaphragms configured inside the positive pole piece and inside the negative pole piece are piezoelectric ceramic coated diaphragms, and the device is used for executing the direct current pulse type charging method for the rechargeable battery according to any one of claims 1 to 6, and the device comprises:

the oscillation charging condition judging unit is used for judging whether the charging basic information of the rechargeable battery meets preset oscillation charging conditions or not if the charging voltage is detected;

The oscillation charging strategy acquisition unit is used for acquiring an oscillation charging strategy corresponding to the charging basic information and the basic parameter information of the rechargeable battery according to a preset configuration rule if the charging basic information meets the oscillation charging condition;

and the oscillation charging control unit is used for controlling the charging circuit to output direct current pulse current to the rechargeable battery according to the oscillation charging strategy so as to enable the piezoelectric ceramic coated diaphragm to oscillate.

8. A computer device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus;

A memory for storing a computer program;

a processor for implementing the steps of the direct current pulse charging method for a rechargeable battery according to any one of claims 1 to 6 when executing a program stored on a memory.

9. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the direct current pulse charging method for a rechargeable battery according to any one of claims 1-6.