CN112379278A - Carbon-coated lithium thionyl chloride battery capacity detection device and automatic test method thereof - Google Patents
Carbon-coated lithium thionyl chloride battery capacity detection device and automatic test method thereof Download PDFInfo
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- CN112379278A CN112379278A CN202011281018.5A CN202011281018A CN112379278A CN 112379278 A CN112379278 A CN 112379278A CN 202011281018 A CN202011281018 A CN 202011281018A CN 112379278 A CN112379278 A CN 112379278A
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- 238000001514 detection method Methods 0.000 title claims abstract description 44
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 title claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 22
- 238000010998 test method Methods 0.000 title description 5
- 238000012360 testing method Methods 0.000 claims abstract description 56
- 238000002161 passivation Methods 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 230000008030 elimination Effects 0.000 claims abstract description 4
- 238000003379 elimination reaction Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/386—Arrangements for measuring battery or accumulator variables using test-loads
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
本发明公开了一种碳包式锂亚硫酰氯电池容量检测装置及其自动测试方法，所述装置包括检测装置主体，检测装置主体包括电源部分、控制与显示部分、测试电路部分，其中：检测装置主体包括电源部分、控制与显示部分、测试电路部分；电源部分包括电源开关、充电接口、内部电源及其充电电路；控制与显示部分包括控制器MCU、调试接口、LED指示灯、显示屏；测试电路部分包括电池电压采样电路、钝化消除负载、脉冲测试负载、开关1及其驱动电路、开关2及其驱动电路。本发明解决了目前碳包式锂亚硫酰氯电池容量表征困难、无法简便、无损、准确地进行剩余容量检测的问题，能够实现对剩余容量的检测。
The invention discloses a carbon-coated lithium thionyl chloride battery capacity detection device and an automatic testing method thereof. The device comprises a detection device main body, and the detection device main body includes a power supply part, a control and display part, and a test circuit part, wherein: detection The main body of the device includes a power supply part, a control and display part, and a test circuit part; the power supply part includes a power switch, a charging interface, an internal power supply and its charging circuit; the control and display part includes a controller MCU, a debugging interface, an LED indicator light, and a display screen; The test circuit part includes battery voltage sampling circuit, passivation elimination load, pulse test load, switch 1 and its driving circuit, switch 2 and its driving circuit. The invention solves the problem that the capacity of the carbon-coated lithium thionyl chloride battery is difficult to characterize, and the remaining capacity cannot be detected simply, non-destructively and accurately, and the detection of the remaining capacity can be realized.
Description
Technical Field
The invention belongs to the technical field of lithium thionyl chloride battery detection, and relates to a carbon-coated lithium thionyl chloride battery capacity detection device and an automatic test method thereof.
Background
The carbon-coated lithium thionyl chloride battery is widely applied to equipment such as intelligent instruments and the like by virtue of the characteristics of high specific energy and long service life. As a key backup power source, the capacity status is an important factor affecting the reliability of the device and the system. Since carbon-coated lithium thionyl chloride batteries are non-rechargeable primary batteries, testing of their capacity tends to be time consuming and destructive. In addition, due to the influence of complex characteristics such as battery passivation, the residual capacity of the carbon-coated lithium thionyl chloride battery cannot be detected simply, nondestructively and accurately at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a carbon-coated lithium thionyl chloride battery capacity detection device and an automatic test method thereof. The invention solves the problems that the capacity characterization of the existing carbon-coated lithium thionyl chloride battery is difficult, and the residual capacity can not be detected simply, nondestructively and accurately, and can realize the detection of the residual capacity.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a carbon package formula lithium thionyl chloride battery capacity detection device, includes the detection device main part, the detection device main part includes power supply unit, control and display part, test circuit part, wherein:
the detection device main body comprises a power supply part, a control and display part and a test circuit part;
the power supply part comprises a power switch, a charging interface, an internal power supply and a charging circuit thereof;
the control and display part comprises a controller MCU, a debugging interface, an LED indicator light and a display screen;
the test circuit part comprises a battery voltage sampling circuit, a passivation eliminating load, a pulse test load, a switch 1 and a drive circuit thereof, and a switch 2 and a drive circuit thereof;
the outer surface of the front end of the detection device main body is provided with a display screen, an LED state indicator lamp and a test interface, and the side surface of the detection device main body is provided with a power switch, a debugging interface and a charging interface;
the charging interface is connected with the internal power supply and the charging circuit thereof and is used for charging the internal power supply;
the internal power supply is connected with the control and display part and the test circuit part and is used for supplying power to the control and display part and the test circuit part;
the controller MCU is connected with the display screen, the LED indicator lamp, the debugging interface, the battery voltage sampling circuit, the internal power supply and the charging circuit thereof, the switch 1 and the driving circuit thereof, and the switch 2 and the driving circuit thereof;
the controller MCU is used for controlling display of the display screen, controlling the LED indicator lamps to be lightened, controlling the switches 1 and 2 to be switched on and off, carrying out voltage data acquisition and processing analysis, controlling charging of an internal power supply, and carrying out communication and data transmission with other equipment through a debugging interface;
the display screen is used for displaying an automatic test stage, a battery charging state and a test result residual capacity;
the LED indicator light is used for displaying that the battery is detected to be connected to the test terminal;
the test interface is divided into a battery anode access terminal and a battery cathode access terminal and is used for accessing a tested battery;
the power switch is used for starting the device;
the debugging interface is used for communicating and debugging with the internal control end;
the switch 1 and a driving circuit thereof are used for controlling the connection and disconnection of the passivation eliminating load;
the switch 2 and a driving circuit thereof are used for controlling the on and off of the pulse test load;
the battery voltage sampling circuit is used for dividing the voltage of the battery to be detected so as to facilitate collection.
An automatic test method for the carbon-coated lithium thionyl chloride battery capacity detection device comprises the following steps:
step one, stage 0: when no battery to be tested is connected, the switch 1 and the switch 2 are disconnected, and the display screen displays that the battery connection is not detected;
step two, stage 1: the battery to be tested is connected with the test terminal, the controller MCU detects that the battery to be tested is connected, the LED indicator lamp is lightened, and the display screen displays 'starting battery capacity detection'; the switch 1 is switched on, the battery to be tested is passivated, eliminated and discharged for a fixed time, and a display screen displays 'passivation treatment of the battery is carried out';
step three, stage 2: the switch 1 is switched off, the battery to be tested is kept stand for a fixed time, and a display screen displays that the battery is kept stand after passivation elimination;
step four, stage 3: the switch 2 is closed, short pulse discharge of fixed time is carried out, the voltage waveform of the battery to be tested is collected by the MCU and is used as a residual capacity detection standard, and the display screen displays 'pulse test' to be carried out;
step five, stage 4: the switch 2 is switched off, the battery to be tested is kept stand for a fixed time, the voltage waveform of the battery to be tested is collected by the MCU and is used as a residual capacity detection standard, and the display screen displays 'pulse test';
and step six, identifying the voltage measured in the step five, comparing the voltage with a sample library stored in the MCU of the controller, and displaying the capacity calculation on a display screen.
And step seven and step six are finished, the display screen displays the residual capacity of the battery and displays that the measurement is finished.
Compared with the prior art, the invention has the following advantages:
1. the use is simple. The device can automatically complete electric quantity measurement and electric quantity display only by connecting the battery into the test interface, and complex operation is not needed.
2. The device is small and convenient to carry.
3. The application range is wide. The specific parameters in the test process can be adjusted according to the characteristics of the carbon-coated lithium thionyl chloride batteries of different models and different manufacturers.
4. The problem that the capacity of the existing carbon-coated lithium thionyl chloride battery is time-consuming and difficult to detect is solved, and the residual capacity can be simply, conveniently, nondestructively and accurately detected.
Drawings
Fig. 1 is a front view of a capacity detection device for a carbon-coated lithium thionyl chloride battery.
Fig. 2 is a side view of a capacity detection device for a carbon-coated lithium thionyl chloride battery.
Fig. 3 is a schematic diagram of an internal structure of a capacity detection device for a carbon-coated lithium thionyl chloride battery.
Fig. 4 is a flow chart of an automatic battery capacity measurement method.
FIG. 5 is a single test cycle timeline diagram.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings, but not limited thereto, and any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention shall be covered by the protection scope of the present invention.
The invention provides a carbon-coated lithium thionyl chloride battery capacity detection device, which comprises a detection device main body, as shown in figures 1-3, wherein the detection device main body comprises a power supply part, a control and display part and a test circuit part, wherein:
the detection device main body comprises a power supply part, a control and display part and a test circuit part;
the power supply part comprises a power switch 4, a charging interface 6, an internal power supply and a charging circuit thereof;
the control and display part comprises a controller MCU, a debugging interface 5, an LED indicator lamp 2 and a display screen 1;
the test circuit part comprises a battery voltage sampling circuit, a passivation eliminating load, a pulse test load, a switch 1 and a drive circuit thereof, and a switch 2 and a drive circuit thereof;
the outer surface of the front end of the detection device main body is provided with a display screen 1, an LED state indicator lamp 2 and a test interface 3, and the side surface of the detection device main body is provided with a power switch 4, a debugging interface 5 and a charging interface 6;
the charging interface 6 is connected with an internal power supply and a charging circuit thereof and is used for charging the internal power supply;
the internal power supply is connected with the control and display part and the test circuit part and is used for supplying power to the control and display part and the test circuit part;
the controller MCU is connected with the display screen 1, the LED indicator lamp 2, the debugging interface 5, the battery voltage sampling circuit, the internal power supply and the charging circuit thereof, the switch 1 and the driving circuit thereof, and the switch 2 and the driving circuit thereof;
the controller MCU is used for controlling display of the display screen, controlling the LED indicator lamps to be lightened, controlling the switches 1 and 2 to be switched on and off, carrying out voltage data acquisition and processing analysis, controlling charging of an internal power supply, and carrying out communication and data transmission with other equipment through a debugging interface;
the display screen 1 is used for displaying an automatic test stage and the residual capacity of a test result;
the LED indicator lamp 2 is used for displaying that the battery is detected to be connected to the test terminal;
the test interface 3 is divided into a battery anode access terminal and a battery cathode access terminal and is used for accessing a tested battery;
the power switch 4 is used for starting the device;
the debugging interface 5 is used for communicating with an internal control end and debugging;
the switch 1 and a driving circuit thereof are used for controlling the connection and disconnection of the passivation eliminating load;
the switch 2 and a driving circuit thereof are used for controlling the on and off of the pulse test load;
the battery voltage sampling circuit is used for dividing the voltage of the battery so as to facilitate collection.
In the invention, the switch 1 and the driving circuit thereof, and the switch 2 and the switch of the driving circuit thereof can be a small relay or an MOS tube, and the switch is normally open.
As shown in fig. 4 and 5, the automatic testing process of the capacity detection device for the carbon-coated lithium thionyl chloride battery is as follows:
firstly, if no battery to be tested is accessed, the device is in stage 0, and the display screen displays that the battery access is not detected;
after the battery to be tested is connected to the test terminal, the controller MCU detects that the battery to be tested is connected, the LED indicator lamp is lightened, and the display screen displays that the battery capacity detection is started.
And thirdly, switching on the switch 1, entering a stage 1, passivating, eliminating and discharging the battery to be tested for a fixed time, and displaying on a display screen to perform battery depassivation treatment.
And step four, after the step three is finished, entering a stage 2, disconnecting the switch 1, standing the battery to be tested for a fixed time, and displaying the 'standing battery after passivation elimination' on a display screen.
Step five, after the step four is finished, entering a stage 3, closing the switch 2, and carrying out short pulse discharge for a fixed time; and entering a stage 4 after the stage 3 is finished, disconnecting the switch 2, and standing the battery to be tested for a fixed time. The voltage waveforms of the batteries to be tested in the stage 3 and the stage 4 are collected by the MCU and used as a residual capacity detection standard, and the display screen displays 'pulse test'.
And sixthly, after the fifth step is finished, identifying the voltage measured in the fifth step, comparing the voltage with a sample library stored in the MCU, and displaying the capacity calculation on a display screen.
And seventhly, after the sixth step is finished, displaying the residual capacity of the battery by the display screen, and displaying that the measurement is finished.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011281018.5A CN112379278B (en) | 2020-11-16 | 2020-11-16 | Carbon-coated lithium thionyl chloride battery capacity detection device and automatic test method thereof |
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| CN202011281018.5A CN112379278B (en) | 2020-11-16 | 2020-11-16 | Carbon-coated lithium thionyl chloride battery capacity detection device and automatic test method thereof |
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| CN112379278A true CN112379278A (en) | 2021-02-19 |
| CN112379278B CN112379278B (en) | 2022-04-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6045941A (en) * | 1997-07-08 | 2000-04-04 | Schlumberger Technology Corporation | Method to determine the state of charge and remaining life of lithium batteries used in oilfield services applications |
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| CN107942250A (en) * | 2017-09-30 | 2018-04-20 | 武汉昊诚能源科技有限公司 | A kind of method of quick measurement Clock battery capacity |
| CN109696637A (en) * | 2019-02-20 | 2019-04-30 | 广西睿奕新能源股份有限公司 | Lithium disposable battery capacity monitoring method |
| CN111505521A (en) * | 2020-06-12 | 2020-08-07 | 国网天津市电力公司电力科学研究院 | Method for testing storage life of lithium secondary battery in accelerated manner |
-
2020
- 2020-11-16 CN CN202011281018.5A patent/CN112379278B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6045941A (en) * | 1997-07-08 | 2000-04-04 | Schlumberger Technology Corporation | Method to determine the state of charge and remaining life of lithium batteries used in oilfield services applications |
| US6118275A (en) * | 1998-06-25 | 2000-09-12 | Korea Kumho Petrochemical Co., Ltd. | Method and apparatus for measuring battery capacity using voltage response signal based on pulse current |
| CN202003014U (en) * | 2011-02-15 | 2011-10-05 | 武汉孚安特科技有限公司 | Volume management circuit for lithium thionyl chloride battery |
| WO2013028090A1 (en) * | 2011-08-22 | 2013-02-28 | Bryzgalov Andrei Andreevich | Method of determining the remaining life of a primary lithium-thionyl chloride battery |
| CN104460459A (en) * | 2014-12-15 | 2015-03-25 | 石家庄科林电气股份有限公司 | Intelligent agricultural drainage meter |
| CN204287442U (en) * | 2014-12-15 | 2015-04-22 | 石家庄科林电气股份有限公司 | Circuit is eliminated in a kind of electric energy meter pond passivation detection and passivation |
| CN106772088A (en) * | 2016-12-28 | 2017-05-31 | 浙江威星智能仪表股份有限公司 | A kind of tool circuit of automatic batch detection lithium thionyl chloride cell |
| CN107942250A (en) * | 2017-09-30 | 2018-04-20 | 武汉昊诚能源科技有限公司 | A kind of method of quick measurement Clock battery capacity |
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