CN115966793B - A lithium battery charging and discharging control method and device under low temperature conditions - Google Patents
A lithium battery charging and discharging control method and device under low temperature conditions Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 88
- 238000007599 discharging Methods 0.000 title claims abstract description 64
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 33
- 230000008569 process Effects 0.000 claims abstract description 45
- 238000009434 installation Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000004590 computer program Methods 0.000 description 10
- 230000000630 rising effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
本发明涉及电池控制技术领域，特别是涉及一种低温条件下锂电池充放电控制方法及装置，所述低温条件下锂电池充放电控制方法包括充电过程以及放电过程：充电过程：获取各个单体电池的温度；根据获取的单体电池的温度确定若干个充电单体电池；调整充电参数，对确定出的若干个充电单体电池进行充电；监测充电过程中各个单体电池的温度；根据监测到的各个单体电池的温度重新确定充电单体电池；根据重新确定的充电单体电池调整充电参数以对重新确定的充电单体电池进行充电；放电过程与充电过程相近。本发明提供的充放电控制方法通过比较各个单体电池的温度，确定充放电的单体电池，利用充放电产生的热量使各个单体电池进入到适宜充放电的温度区间。
The present invention relates to the field of battery control technology, and in particular to a method and device for controlling the charging and discharging of lithium batteries under low temperature conditions, wherein the method for controlling the charging and discharging of lithium batteries under low temperature conditions includes a charging process and a discharging process: the charging process: obtaining the temperature of each single cell; determining a number of charging single cells according to the obtained temperature of the single cell; adjusting the charging parameters to charge the determined number of charging single cells; monitoring the temperature of each single cell during the charging process; re-determining the charging single cell according to the monitored temperature of each single cell; adjusting the charging parameters according to the re-determined charging single cell to charge the re-determined charging single cell; the discharging process is similar to the charging process. The charging and discharging control method provided by the present invention determines the charging and discharging single cells by comparing the temperature of each single cell, and uses the heat generated by charging and discharging to make each single cell enter a temperature range suitable for charging and discharging.
Description
Technical Field
The invention relates to the technical field of battery control, in particular to a method and a device for controlling charge and discharge of a lithium battery under a low-temperature condition.
Background
Temperature is an important parameter in a power control system, mainly because temperature affects the charge and discharge of a battery. Specifically, the temperature is lowered, the external voltage and the external capacity of the battery are lowered, and particularly at a temperature of-20 ℃ or lower, the phenomenon is more remarkable, and conversely, the external voltage and the external capacity of the battery are raised when the temperature is raised. However, because of the complicated physicochemical changes in the charge and discharge process, the temperature of the battery is greatly changed, and it is difficult to quantitatively analyze the actual influence of temperature on charge and discharge.
From the electrochemical angle analysis, the solution resistance and SEI film resistance are not changed greatly in the whole temperature range, the influence on the low-temperature performance of the battery is small, the charge transfer resistance is obviously increased along with the reduction of the temperature, and the change along with the temperature in the whole temperature range is obviously larger than the solution resistance and SEI film resistance. This is because as the temperature decreases, the ionic conductivity of the electrolyte decreases, and the SEI film resistance and the electrochemical reaction resistance increase, resulting in an increase in ohmic polarization, concentration polarization, and electrochemical polarization at low temperatures, which are shown to decrease in average voltage and discharge capacity with a decrease in temperature on the discharge curve of the battery.
The prior art provides a method for carrying out certain heating treatment on a battery to separate the battery from an inefficient charge-discharge temperature interval and then externally charge-discharge the battery, the method is basically designed aiming at a single battery, and the problem that how to control the charge-discharge of the battery to reduce the loss is needed to be solved for battery packs arranged side by side.
Disclosure of Invention
In view of the above, it is necessary to provide a method and apparatus for controlling charge and discharge of a lithium battery under low temperature conditions.
The embodiment of the invention is realized in such a way that the lithium battery charge and discharge control method under the low temperature condition comprises a charge process and a discharge process:
and (3) charging:
acquiring the temperature of each single battery;
determining a plurality of rechargeable single batteries according to the acquired temperature of the single batteries;
adjusting charging parameters, and charging the determined plurality of single charging batteries;
Monitoring the temperature of each single battery in the charging process;
Re-determining the charged single battery according to the monitored temperature of each single battery;
adjusting the charging parameters according to the redetermined rechargeable single battery to charge the redetermined rechargeable single battery;
The discharging process comprises the following steps:
acquiring the temperature of each single battery;
determining a plurality of discharging single batteries according to the acquired temperature of the single batteries;
adjusting the discharge parameters to discharge the determined single discharge batteries;
monitoring the temperature of each single battery in the discharging process;
re-determining the discharge single battery according to the monitored temperature of each single battery;
And adjusting the discharge parameters according to the redetermined discharge single battery to discharge the redetermined discharge single battery to the outside.
In one embodiment, the invention provides a lithium battery charge-discharge control device under a low-temperature condition, wherein the lithium battery charge-discharge control device under the low-temperature condition comprises a charge control module and a discharge control module;
The charging control module is used for:
acquiring the temperature of each single battery;
determining a plurality of rechargeable single batteries according to the acquired temperature of the single batteries;
adjusting charging parameters, and charging the determined plurality of single charging batteries;
Monitoring the temperature of each single battery in the charging process;
Re-determining the charged single battery according to the monitored temperature of each single battery;
adjusting the charging parameters according to the redetermined rechargeable single battery to charge the redetermined rechargeable single battery;
The discharge control module is used for:
acquiring the temperature of each single battery;
determining a plurality of discharging single batteries according to the acquired temperature of the single batteries;
adjusting the discharge parameters to discharge the determined single discharge batteries;
monitoring the temperature of each single battery in the discharging process;
re-determining the discharge single battery according to the monitored temperature of each single battery;
And adjusting the discharge parameters according to the redetermined discharge single battery to discharge the redetermined discharge single battery to the outside.
According to the lithium battery charging and discharging control method under the low-temperature condition, the temperature of the single battery is obtained, the single battery which is charged or discharged firstly is determined according to the temperature condition of the single battery, and the adjacent single battery is separated from a low-efficiency temperature region of charging and discharging by utilizing heat generated by charging or discharging the single battery, so that useless loss in the charging and discharging process is reduced, and the electric energy utilization rate is improved.
Drawings
Fig. 1 is a flowchart of a method for controlling charge and discharge of a lithium battery under low temperature conditions according to an embodiment;
fig. 2 is a block diagram of a lithium battery charge-discharge control device under a low temperature condition according to an embodiment;
FIG. 3 is a block diagram of the internal architecture of a computer device in one embodiment.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another element. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of this disclosure.
As shown in fig. 1, in one embodiment, a method for controlling charge and discharge of a lithium battery under a low temperature condition is provided, where the method for controlling charge and discharge of a lithium battery under a low temperature condition includes a charging process and a discharging process:
and (3) charging:
acquiring the temperature of each single battery;
determining a plurality of rechargeable single batteries according to the acquired temperature of the single batteries;
adjusting charging parameters, and charging the determined plurality of single charging batteries;
Monitoring the temperature of each single battery in the charging process;
Re-determining the charged single battery according to the monitored temperature of each single battery;
adjusting the charging parameters according to the redetermined rechargeable single battery to charge the redetermined rechargeable single battery;
The discharging process comprises the following steps:
acquiring the temperature of each single battery;
determining a plurality of discharging single batteries according to the acquired temperature of the single batteries;
adjusting the discharge parameters to discharge the determined single discharge batteries;
monitoring the temperature of each single battery in the discharging process;
re-determining the discharge single battery according to the monitored temperature of each single battery;
And adjusting the discharge parameters according to the redetermined discharge single battery to discharge the redetermined discharge single battery to the outside.
In this embodiment, the charging process is similar to the discharging process for the selected method of the target unit cell, and only the data selected is different. In this embodiment, the present invention is mainly aimed at a battery pack or a battery pack formed by a plurality of single batteries side by side, and meanwhile, the present invention is not suitable for occasions with higher real-time requirements on charge and discharge, and is mainly suitable for scenes such as energy storage systems, wind-to-light conversion and storage, and the like, and is also suitable for scenes with relatively stable electricity consumption such as data centers, and in these scenes, the requirement on timeliness of charge and discharge is relatively low, and the present invention has a relatively wide preheating time, and is not suitable for fast charge scenes.
In this embodiment, the unit cells refer to the single cells forming the battery pack or the battery pack, and the target unit cell is determined by acquiring the temperature of each unit cell and combining the control method, and the adjacent unit cells are preheated by using the heat generated by charging and discharging the unit cells by performing charging and discharging control on the target unit cell, so that the electric quantity loss caused by charging and discharging at low temperature is reduced. In this embodiment, the charging reaction body is generally endothermic, but the unit cells can be charged by a constant voltage to release heat, and the target unit cells charged first have a low temperature, a high internal resistance, and a high heat generation compared with the heat absorbed, and the entire unit cells are exothermic. Correspondingly, the charging parameter and the discharging parameter in the invention are parameters of voltage or current for controlling which single battery is charged and discharged and the charging and discharging, and the control of the voltage and the current belongs to the prior art, so that the invention aims to solve the charging and discharging sequence problem.
In this embodiment, it is further described that the above-mentioned control method of charging or discharging is performed in a cycle during the charging or discharging or the process, so that the target unit cell gradually increases as the charging or discharging proceeds until all the unit cells become the target unit cells, and the control method of the present invention ends. In the present invention, the low temperature is relatively low, and the effect is more remarkable when the method of the present invention is used at a temperature lower than 0℃in general, and of course, the advantage of the method of the present invention is more remarkable when the temperature is lower.
According to the lithium battery charging and discharging control method under the low-temperature condition, the temperature of the single battery is obtained, the single battery which is charged or discharged firstly is determined according to the temperature condition of the single battery, and the adjacent single battery is separated from a low-efficiency temperature region of charging and discharging by utilizing heat generated by charging or discharging the single battery, so that useless loss in the charging and discharging process is reduced, and the electric energy utilization rate is improved.
As an optional embodiment of the present invention, the determining a plurality of rechargeable battery cells according to the obtained temperature of the battery cells includes:
Grouping the single batteries according to the installation positions of the single batteries, and arranging all the single batteries in the same group into rows;
for each group, judging whether a single battery with the temperature higher than a first threshold value exists or not;
if the battery pack exists, the single battery which is higher than the first threshold value is used as a charging single battery;
if the temperature difference does not exist, the temperature difference of the single battery is calculated, and the charged single battery is determined according to the calculated temperature difference.
In the present embodiment, the unit cells closely arranged in rows are grouped as one group according to the installation position, which belongs to the structural division. In this embodiment, the temperature of each single battery is different due to different internal states and different working conditions of the single batteries, and the invention solves the problem of charging and discharging of the battery pack or the battery pack under the low-temperature condition based on the difference. In this embodiment, the single battery with high temperature is selected as the target single battery, so that the characteristics of the single battery under high temperature under the charging loss can be fully utilized, and the adjacent single battery is preheated by using the heat generated by charging the single battery.
As an optional embodiment of the present invention, the calculating the temperature difference of the battery cell, and determining the rechargeable battery cell according to the calculated temperature difference, includes:
Calculating the temperature difference of two adjacent single batteries to obtain a first temperature difference array;
judging whether two adjacent items in the first temperature difference sequence are larger than a second threshold value or not;
If the battery pack exists, taking the single battery corresponding to the two temperature differences larger than the second threshold value as a charging single battery;
If the non-adjacent items larger than the second threshold value exist in the first temperature difference sequence, dividing the single batteries into groups according to the determined non-adjacent items larger than the second threshold value, and taking the single battery with the highest temperature in each group as a charging single battery;
And if the non-adjacent item larger than the second threshold value does not exist, determining the candidate single battery according to the installation position relation of the single battery, and determining the charging single battery in the candidate single battery.
In this embodiment, it can be understood that two adjacent terms are larger than the second threshold, and the two terms are respectively calculated from the difference between the temperatures of the two unit cells, so that the unit cell corresponding to the two temperature differences herein refers to the unit cell with the higher temperature in the two unit cells corresponding to each temperature difference. In the present invention, the temperature series only takes the absolute values of the temperatures of two adjacent single batteries.
In this embodiment, the candidate single batteries are determined according to the installation position relationship of the single batteries, that is, the single batteries which are not in direct contact with the external environment are selected, and the non-edge single batteries are selected from the single batteries which are not in direct contact as the candidate single batteries, so that other single batteries are ensured to exist in front of and behind each candidate single battery. All the individual cells can thus be determined from the actual structural arrangement.
As an optional embodiment of the present invention, the determining a rechargeable battery cell among candidate battery cells includes:
Performing test charging on all candidate single batteries, and monitoring the temperature of each single battery;
repeating the steps of the previous embodiment, and judging whether the single battery is determined to be charged or not;
If not, calculating the temperature rising rate of each candidate single battery;
Calculating the priority value of each candidate single battery according to the temperature rising rate, the position parameter and the current temperature:
H=av+bk+cT
Wherein H is a priority value of the single battery, a, b, c are weights of a temperature rising rate v, a position parameter k and a current temperature T, k=1/(n 1+n2+d),n1、n2) is the number of continuous non-candidate single batteries on the left side and the right side of each candidate single battery, and d is a non-0 constant;
and selecting not more than N/3 candidate single batteries as target single batteries according to the magnitude of the calculated priority value, wherein N is the number of the candidate single batteries.
In the present embodiment, by performing trial charging on all the battery cells and monitoring the temperature change of each battery cell, it is determined whether or not the target battery cell can be determined by performing the foregoing embodiment. Each time the foregoing embodiment is performed, the above-described method of calculating the priority value of each unit cell is performed once. It is determined whether the target unit cell is present in at least three ways during the trial charging. And when the number of the target single batteries selected by the priority value does not reach a preset selected value (for example, N/3), performing trial charging on all the candidate single batteries until the total number of the target single batteries determined by the three modes reaches a set value, stopping the trial charging on the candidate single batteries, and switching to charging on the target single batteries. The two previous methods for determining the target single battery are repeated in the charging process, and all the single batteries directly become the target single battery.
As an optional embodiment of the present invention, the determining a plurality of discharging unit cells according to the acquired temperature of the unit cells includes:
Grouping the single batteries according to the installation positions of the single batteries, and arranging all the single batteries in the same group into rows;
judging whether a single battery with the temperature higher than a third threshold value exists for each group;
if the single battery exists, the single battery which is higher than the third threshold value is used as a discharging single battery;
if the temperature difference does not exist, the temperature difference of the single battery is calculated, and the discharging single battery is determined according to the calculated temperature difference.
In this embodiment, the above steps are explanations of the discharging process, and specific reference may be made to explanations of corresponding embodiments of the charging process, which are not repeated herein.
As an optional embodiment of the present invention, the calculating the temperature difference of the unit cell, and determining the discharging unit cell according to the calculated temperature difference, includes:
Calculating the temperature difference of two adjacent single batteries to obtain a second temperature difference array;
judging whether two adjacent items in the second temperature difference sequence are larger than a fourth threshold value;
if the single battery exists, the single battery corresponding to the two temperature differences larger than the fourth threshold value is used as a discharging single battery;
If the non-adjacent item larger than the fourth threshold value exists in the second temperature difference sequence, dividing the single batteries into groups according to the determined non-adjacent item larger than the fourth threshold value, and taking the single battery with the highest temperature in each group as a discharging single battery;
And if the non-adjacent item larger than the fourth threshold value does not exist, determining the candidate single battery according to the installation position relation of the single battery, and determining the discharging single battery in the candidate single battery.
In this embodiment, the above steps are explanations of the discharging process, and specific reference may be made to explanations of corresponding embodiments of the charging process, which are not repeated herein. Wherein the third threshold may be equal to the first threshold and the fourth threshold may be equal to the second threshold.
As an optional embodiment of the present invention, the determining a discharge cell among the candidate cells includes:
performing test discharge on all candidate single batteries, and monitoring the temperature of each single battery;
repeating the steps of the previous embodiment, and judging whether to determine the discharge single battery;
If not, calculating the temperature rising rate of each candidate single battery;
Calculating the priority value of each candidate single battery according to the temperature rising rate, the position parameter and the current temperature:
H=av+bk+cT
Wherein H is a priority value of the single battery, a, b, c are weights of a temperature rising rate v, a position parameter k and a current temperature T, k=1/(n 1+n2+d),n1、n2) is the number of continuous non-candidate single batteries on the left side and the right side of each candidate single battery, and d is a non-0 constant;
and selecting not more than N/3 candidate single batteries as target single batteries according to the magnitude of the calculated priority value, wherein N is the number of the candidate single batteries.
In this embodiment, the above steps are explanations of the discharging process, and specific reference may be made to explanations of corresponding embodiments of the charging process, which are not repeated herein.
As an alternative embodiment of the invention, the first threshold value is determined by the steps of:
Acquiring the external environment temperature, and judging whether the acquired external environment temperature is less than-20 ℃;
If the external environment temperature is less than-20 ℃, setting the first threshold value to be-20 ℃;
If the external environment temperature is more than or equal to minus 20 ℃, calculating the average temperature of all the single batteries in each group, and taking 1.2-1.5 times of the average temperature as a first threshold.
In this embodiment, the determination method of the first threshold is given, and the second threshold is adjacent to the temperature difference, which may be 1/5-1/2 of the first threshold.
As an alternative embodiment of the invention, the third threshold value is determined by the steps of:
acquiring the external environment temperature, and judging whether the acquired external environment temperature is less than-10 ℃;
if the external environment temperature is less than-10 ℃, setting a third threshold value to-10 ℃;
if the external environment temperature is greater than or equal to-10 ℃, calculating the average temperature of all the single batteries in each group, and taking 1.2-1.5 times of the average temperature as a third threshold value.
In this embodiment, the determination method of the third threshold is given, and the temperature difference adjacent to the fourth threshold corresponding to the determination method of the third threshold may be 1/5-1/2 of the first threshold.
As shown in fig. 2, the embodiment of the invention further provides a lithium battery charging and discharging control device under the low temperature condition, wherein the lithium battery charging and discharging control device under the low temperature condition comprises a charging control module and a discharging control module;
The charging control module is used for:
acquiring the temperature of each single battery;
determining a plurality of rechargeable single batteries according to the acquired temperature of the single batteries;
adjusting charging parameters, and charging the determined plurality of single charging batteries;
Monitoring the temperature of each single battery in the charging process;
Re-determining the charged single battery according to the monitored temperature of each single battery;
adjusting the charging parameters according to the redetermined rechargeable single battery to charge the redetermined rechargeable single battery;
The discharge control module is used for:
acquiring the temperature of each single battery;
determining a plurality of discharging single batteries according to the acquired temperature of the single batteries;
adjusting the discharge parameters to discharge the determined single discharge batteries;
monitoring the temperature of each single battery in the discharging process;
re-determining the discharge single battery according to the monitored temperature of each single battery;
And adjusting the discharge parameters according to the redetermined discharge single battery to discharge the redetermined discharge single battery to the outside.
In this embodiment, the modules are modules of the method of the present invention, and for a specific explanation of the contents executed by each module, please refer to the contents of the method of the present invention, the embodiments of the present invention are not described herein again.
Fig. 3 shows an internal structural view of a computer device, which may include the lithium battery charge and discharge control device under the low temperature condition shown in fig. 2, according to an embodiment. As shown in fig. 3, the computer device includes a processor, a memory, a network interface, an input device, and a display screen connected by a system bus. The memory includes a nonvolatile storage medium and an internal memory. The nonvolatile storage medium of the computer equipment stores an operating system and can also store a computer program, and when the computer program is executed by the processor, the processor can realize the lithium battery charge and discharge control method under the low-temperature condition. The internal memory may also store a computer program, which when executed by the processor, causes the processor to execute the lithium battery charge and discharge control method under the low temperature condition provided by the embodiment of the invention. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in FIG. 3 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, the lithium battery charge and discharge control device under the low-temperature condition provided by the embodiment of the invention can be implemented in a form of a computer program, and the computer program can be run on a computer device as shown in fig. 3. The memory of the computer device may store various program modules constituting the lithium battery charge and discharge control device under the low temperature condition, such as the charge control module and the discharge control module shown in fig. 2. The computer program constituted by the respective program modules causes the processor to execute the steps in the lithium battery charge and discharge control method under the low temperature condition of the respective embodiments of the present invention described in the present specification.
In one embodiment, a computer device is presented, the computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
and (3) charging:
acquiring the temperature of each single battery;
determining a plurality of rechargeable single batteries according to the acquired temperature of the single batteries;
adjusting charging parameters, and charging the determined plurality of single charging batteries;
Monitoring the temperature of each single battery in the charging process;
Re-determining the charged single battery according to the monitored temperature of each single battery;
adjusting the charging parameters according to the redetermined rechargeable single battery to charge the redetermined rechargeable single battery;
The discharging process comprises the following steps:
acquiring the temperature of each single battery;
determining a plurality of discharging single batteries according to the acquired temperature of the single batteries;
adjusting the discharge parameters to discharge the determined single discharge batteries;
monitoring the temperature of each single battery in the discharging process;
re-determining the discharge single battery according to the monitored temperature of each single battery;
And adjusting the discharge parameters according to the redetermined discharge single battery to discharge the redetermined discharge single battery to the outside.
In one embodiment, a computer readable storage medium is provided, having a computer program stored thereon, which when executed by a processor causes the processor to perform the steps of:
and (3) charging:
acquiring the temperature of each single battery;
determining a plurality of rechargeable single batteries according to the acquired temperature of the single batteries;
adjusting charging parameters, and charging the determined plurality of single charging batteries;
Monitoring the temperature of each single battery in the charging process;
Re-determining the charged single battery according to the monitored temperature of each single battery;
adjusting the charging parameters according to the redetermined rechargeable single battery to charge the redetermined rechargeable single battery;
The discharging process comprises the following steps:
acquiring the temperature of each single battery;
determining a plurality of discharging single batteries according to the acquired temperature of the single batteries;
adjusting the discharge parameters to discharge the determined single discharge batteries;
monitoring the temperature of each single battery in the discharging process;
re-determining the discharge single battery according to the monitored temperature of each single battery;
And adjusting the discharge parameters according to the redetermined discharge single battery to discharge the redetermined discharge single battery to the outside.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in various embodiments may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the sub-steps or stages of other steps or other steps.
Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a non-volatile computer readable storage medium, and where the program, when executed, may include processes in the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
Priority Applications (1)
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