CN110261786A - A kind of capacity test method of rectangular aluminum hull battery core - Google Patents
A kind of capacity test method of rectangular aluminum hull battery core Download PDFInfo
- Publication number
- CN110261786A CN110261786A CN201910588769.2A CN201910588769A CN110261786A CN 110261786 A CN110261786 A CN 110261786A CN 201910588769 A CN201910588769 A CN 201910588769A CN 110261786 A CN110261786 A CN 110261786A
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- CN
- China
- Prior art keywords
- battery core
- battery
- discharge
- battery pack
- aluminum hull
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- 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]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
Abstract
The invention discloses a kind of capacity test methods of rectangular aluminum hull battery core, the specific steps are as follows: S1: piece is welded to connect at single battery core positive terminal and negative terminal, the length and width of the connection sheet are less than or equal to the length and width of positive/negative pole；S2: the S1 multiple battery cores for being welded with connection sheet are stacked into the battery pack of the matrix type of NxM；S3: the battery pack in S2 is put into environmental cabinet；S4: being specified charging temperature by environmental cabinet temperature setting；S5: it charges simultaneously to each battery core of battery pack；S6: being specified discharge temp by environmental cabinet temperature setting；S7: it is discharged simultaneously each battery core of battery pack；S8: S3-S6 is repeated, carries out charge-discharge test under different temperatures repeatedly.The present invention carries out charge and discharge to all battery cores in battery pack by the way that multiple battery cores are stacked into battery pack, simulates the real use state of battery core, can accurately obtain the more true capacitance values of battery core, there is the performance using correct assessment battery core.
Description
Technical field
The present invention relates to the volume test technical field of battery core, specially a kind of volume test side of rectangular aluminum hull battery core
Method.
Background technique
Battery core is first to be assembled into mould group in actual use at present, is then assembled into battery system, battery system when in use,
All battery cores in system discharge simultaneously or charge simultaneously, multiple battery cores simultaneously charge and discharge when temperature rise be all greater than list
Temperature rise when a battery core charge and discharge, and temperature be it is influential on the capacity of battery core, especially low temperature when to the capacity shadow of battery core
Sound is very big.
But when battery core volume test at present tested single battery core, this test mode and battery core are practical
Use state is not consistent, and cannot also test out accurate data, can not accurately assess battery core.
Summary of the invention
The purpose of the present invention is to provide a kind of capacity test method of rectangular aluminum hull battery core, the rectangular aluminum hull battery core
Top is provided with positive terminal and negative terminal, and specific step is as follows for the capacity test method of the rectangular aluminum hull battery core:
S1: being welded to connect piece at single battery core positive terminal and negative terminal, the length and width of the connection sheet are less than or equal to positive/negative pole
The center riveting of length and width, the connection sheet has stud；
The S1 multiple battery cores for being welded with connection sheet: being stacked into the matrix type battery pack of NxM by S2, with binding adhesive tape or strap
Battery pack binding is integral；
S3: the battery pack in S2 is put into environmental cabinet, each battery core is connect with the channel line of charge-discharge test cabinet；
S4: being specified charging temperature by environmental cabinet temperature setting, and battery pack sets aside to the charging that battery pack temperature reaches specified
Temperature；
S5: it charges simultaneously to each battery core of battery pack；
S6: being specified discharge temp by environmental cabinet temperature setting, and battery pack sets aside to the electric discharge that battery pack temperature reaches specified
Temperature；
S7: it is discharged simultaneously each battery core of battery pack；
S8: repeating S3-S6, carries out charge-discharge test under different temperatures repeatedly, records the capacity data of battery core under different temperatures.
Preferably, the N is more than or equal to 2, and the M is 6-12.
Preferably, the channel line of the charge-discharge test cabinet includes positive channel line, cathode channel line and warming line, described
Positive channel line is connect with the connection sheet on positive terminal, and the cathode channel line is connect with the connection sheet on negative terminal, the temperature
Sense line is attached to the position among battery core positive terminal and negative terminal.
Preferably, the temperature that the warming line in each battery core in the battery pack detects reaches specified charging temperature
Just chargeable, the charging temperature is 0-55 DEG C, most preferably 25 DEG C.
Preferably, charging work step is to turn constant-voltage charge when AC constant-current charge to battery charge cutoff voltage, until charging electricity
Stream is reduced to 0.05C, A 0.1-3, and the charge cutoff voltage of ferric phosphate lithium cell is 3.65V, the charge cutoff voltage of ternary battery
For 4.3V.
Preferably, the temperature that the warming line in each battery core in the battery pack detects reaches specified discharge temp
It can just discharge, the discharge temp is -20-55 DEG C.
Preferably, electric discharge work step is with BC constant-current discharge to monomer discharge cut-off voltage, B 0.1-3, ferric phosphate lithium cell
Discharge cut-off voltage be 2.0-2.5V, the discharge cut-off voltage of ternary battery is 2.7-3.0V.
Preferably, the C is 1 hour rate rated capacity, unit Ah.
Compared with prior art, the beneficial effects of the present invention are: the present invention is by being stacked into battery pack for multiple battery cores, together
When in battery pack all battery cores carry out charge and discharge, simulate the real use state of battery core, can accurately obtain battery core
More true capacitance values have the performance using correct assessment battery core.
Detailed description of the invention
Fig. 1 is that battery core of the present invention is welded to connect structural schematic diagram after piece；
Fig. 2 is structural schematic diagram after multiple groups battery core of the present invention binding.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment 1
A kind of capacity test method of rectangular aluminum hull battery core is provided with positive terminal and cathode at the top of the rectangular aluminum hull battery core
Column, specific step is as follows for the capacity test method of the rectangular aluminum hull battery core:
S1: being welded to connect piece at single battery core positive terminal and negative terminal, the length and width of the connection sheet are less than or equal to positive/negative pole
The center riveting of length and width, the connection sheet has stud；
The S1 multiple battery cores for being welded with connection sheet: being stacked into the matrix type battery pack of NxM by S2, with binding adhesive tape or strap
Battery pack binding is integral；
S3: the battery pack in S2 is put into environmental cabinet, each battery core is connect with the channel line of charge-discharge test cabinet；
S4: being specified charging temperature by environmental cabinet temperature setting, and battery pack sets aside to the charging that battery pack temperature reaches specified
Temperature；
S5: it charges simultaneously to each battery core of battery pack；
S6: being specified discharge temp by environmental cabinet temperature setting, and battery pack sets aside to the electric discharge that battery pack temperature reaches specified
Temperature；
S7: it is discharged simultaneously each battery core of battery pack；
S8: repeating S3-S6, carries out charge-discharge test under different temperatures repeatedly, records the capacity data of battery core under different temperatures.
The N is more than or equal to 2, and the M is 6-12.The channel line of the charge-discharge test cabinet includes positive channel line, bears
Pole channel line and warming line, the anode channel line are connect with the connection sheet on positive terminal, the cathode channel line and negative terminal
On connection sheet connection, the warming line is attached to the position among battery core positive terminal and negative terminal.Each of in the battery pack
The temperature that warming line in battery core detects reaches that specified charging temperature is just chargeable, and the charging temperature is 0-55 DEG C, most
Good is 25 DEG C.The work step that charges is to turn constant-voltage charge when AC constant-current charge to battery charge cutoff voltage, until charging current is reduced to
The charge cutoff voltage of 0.05C, A 0.1-3, ferric phosphate lithium cell are 3.65V, and the charge cutoff voltage of ternary battery is
4.3V.The temperature that the warming line in each battery core in the battery pack detects, which reaches specified discharge temp, can just discharge,
The discharge temp is -20-55 DEG C.The work step that discharges is with BC constant-current discharge to monomer discharge cut-off voltage, B 0.1-3, phosphoric acid
The discharge cut-off voltage of lithium iron battery is 2.0-2.5V, and the discharge cut-off voltage of ternary battery is 2.7-3.0V.The C is 1 small
When rate rated capacity, unit Ah.
The present invention carries out charge and discharge to all battery cores in battery pack by the way that multiple battery cores are stacked into battery pack,
The real use state of battery core is simulated, the more true capacitance values of battery core can be accurately obtained, has and utilizes correct assessment
The performance of battery core.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of capacity test method of rectangular aluminum hull battery core, positive terminal and cathode are provided at the top of the rectangular aluminum hull battery core
Column, it is characterised in that: specific step is as follows for the capacity test method of the rectangular aluminum hull battery core:
S1: being welded to connect piece at single battery core positive terminal and negative terminal, the length and width of the connection sheet are less than or equal to positive/negative pole
The center riveting of length and width, the connection sheet has stud；
The S1 multiple battery cores for being welded with connection sheet: being stacked into the matrix type battery pack of NxM by S2, with binding adhesive tape or strap
Battery pack binding is integral；
S3: the battery pack in S2 is put into environmental cabinet, each battery core is connect with the channel line of charge-discharge test cabinet；
S4: being specified charging temperature by environmental cabinet temperature setting, and battery pack sets aside to the charging that battery pack temperature reaches specified
Temperature；
S5: it charges simultaneously to each battery core of battery pack；
S6: being specified discharge temp by environmental cabinet temperature setting, and battery pack sets aside to the electric discharge that battery pack temperature reaches specified
Temperature；
S7: it is discharged simultaneously each battery core of battery pack；
S8: repeating S3-S6, carries out charge-discharge test under different temperatures repeatedly, records the capacity data of battery core under different temperatures.
2. a kind of capacity test method of rectangular aluminum hull battery core according to claim 1, it is characterised in that: the N is greater than
Equal to 2, the M is 6-12.
3. a kind of capacity test method of rectangular aluminum hull battery core according to claim 1, it is characterised in that: the charge and discharge
The channel line of test cabinet includes positive channel line, cathode channel line and warming line, the company in the anode channel line and positive terminal
Contact pin connection, the cathode channel line are connect with the connection sheet on negative terminal, and the warming line is attached to battery core positive terminal and cathode
Position among column.
4. a kind of capacity test method of rectangular aluminum hull battery core according to claim 1, it is characterised in that: the battery pack
The temperature that warming line in interior each battery core detects reaches that specified charging temperature is just chargeable, and the charging temperature is 0-
55 DEG C, most preferably 25 DEG C.
5. a kind of capacity test method of rectangular aluminum hull battery core according to claim 1, it is characterised in that: charging work step be
To turn constant-voltage charge when AC constant-current charge to battery charge cutoff voltage, until charging current is reduced to 0.05C, A 0.1-3, phosphoric acid
The charge cutoff voltage of lithium iron battery is 3.65V, and the charge cutoff voltage of ternary battery is 4.3V.
6. a kind of capacity test method of rectangular aluminum hull battery core according to claim 1, it is characterised in that: the battery pack
The temperature that warming line in interior each battery core detects, which reaches specified discharge temp, can just discharge, the discharge temp be-
20-55℃。
7. a kind of capacity test method of rectangular aluminum hull battery core according to claim 1, it is characterised in that: electric discharge work step be
With BC constant-current discharge to monomer discharge cut-off voltage, B 0.1-3, the discharge cut-off voltage of ferric phosphate lithium cell is 2.0-2.5V,
The discharge cut-off voltage of ternary battery is 2.7-3.0V.
8. a kind of capacity test method of rectangular aluminum hull battery core according to claim 1, it is characterised in that: the C is 1 small
When rate rated capacity, unit Ah.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588769.2A CN110261786A (en) | 2019-07-02 | 2019-07-02 | A kind of capacity test method of rectangular aluminum hull battery core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588769.2A CN110261786A (en) | 2019-07-02 | 2019-07-02 | A kind of capacity test method of rectangular aluminum hull battery core |
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| CN110261786A true CN110261786A (en) | 2019-09-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325320A (en) * | 2021-05-28 | 2021-08-31 | 江西安驰新能源科技有限公司 | Capacity grading test method for eliminating capacity climbing of lithium battery |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769995A (en) * | 2010-01-26 | 2010-07-07 | 南京工业大学 | Intelligent battery cycle charge-discharge testing device |
| CN102116847A (en) * | 2011-01-19 | 2011-07-06 | 湖南科力远新能源股份有限公司 | Single battery performance parameter acquisition system for battery pack |
| CN102169167A (en) * | 2011-01-28 | 2011-08-31 | 深圳市佳华利道新技术开发有限公司 | Device and method for detecting calculation accuracy of state of charge (SOC) of battery pack |
| CN102231446A (en) * | 2011-05-24 | 2011-11-02 | 深圳市量能科技有限公司 | Method for controlling consistency of power battery pack |
| CN202471930U (en) * | 2012-03-31 | 2012-10-03 | 惠州市亿能电子有限公司 | Temperature and volume test system for battery system |
| CN104730463A (en) * | 2013-12-20 | 2015-06-24 | 北汽福田汽车股份有限公司 | Method for detecting consistency of single batteries |
| CN105652212A (en) * | 2016-02-05 | 2016-06-08 | 惠州市蓝微新源技术有限公司 | Method for dynamically detecting consistency of battery pack |
| CN106932726A (en) * | 2017-02-28 | 2017-07-07 | 惠州市蓝微新源技术有限公司 | A kind of battery core method for detecting health status |
| US20180254514A1 (en) * | 2016-05-10 | 2018-09-06 | National University Of Defense Technology | Solid-state polymer lithium battery pack and preparation method thereof |
| CN108776307A (en) * | 2018-04-24 | 2018-11-09 | 合肥国轩高科动力能源有限公司 | A kind of lithium-ion electric core conformity classification method based on battery core quantity of heat production |
| CN109061478A (en) * | 2018-06-14 | 2018-12-21 | 深圳市比克动力电池有限公司 | A method of it is tested using EIS and carries out lithium ion battery service life qualitative forecasting |
-
2019
- 2019-07-02 CN CN201910588769.2A patent/CN110261786A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769995A (en) * | 2010-01-26 | 2010-07-07 | 南京工业大学 | Intelligent battery cycle charge-discharge testing device |
| CN102116847A (en) * | 2011-01-19 | 2011-07-06 | 湖南科力远新能源股份有限公司 | Single battery performance parameter acquisition system for battery pack |
| CN102169167A (en) * | 2011-01-28 | 2011-08-31 | 深圳市佳华利道新技术开发有限公司 | Device and method for detecting calculation accuracy of state of charge (SOC) of battery pack |
| CN102231446A (en) * | 2011-05-24 | 2011-11-02 | 深圳市量能科技有限公司 | Method for controlling consistency of power battery pack |
| CN202471930U (en) * | 2012-03-31 | 2012-10-03 | 惠州市亿能电子有限公司 | Temperature and volume test system for battery system |
| CN104730463A (en) * | 2013-12-20 | 2015-06-24 | 北汽福田汽车股份有限公司 | Method for detecting consistency of single batteries |
| CN105652212A (en) * | 2016-02-05 | 2016-06-08 | 惠州市蓝微新源技术有限公司 | Method for dynamically detecting consistency of battery pack |
| US20180254514A1 (en) * | 2016-05-10 | 2018-09-06 | National University Of Defense Technology | Solid-state polymer lithium battery pack and preparation method thereof |
| CN106932726A (en) * | 2017-02-28 | 2017-07-07 | 惠州市蓝微新源技术有限公司 | A kind of battery core method for detecting health status |
| CN108776307A (en) * | 2018-04-24 | 2018-11-09 | 合肥国轩高科动力能源有限公司 | A kind of lithium-ion electric core conformity classification method based on battery core quantity of heat production |
| CN109061478A (en) * | 2018-06-14 | 2018-12-21 | 深圳市比克动力电池有限公司 | A method of it is tested using EIS and carries out lithium ion battery service life qualitative forecasting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325320A (en) * | 2021-05-28 | 2021-08-31 | 江西安驰新能源科技有限公司 | Capacity grading test method for eliminating capacity climbing of lithium battery |
| CN113325320B (en) * | 2021-05-28 | 2023-09-01 | 江西安驰新能源科技有限公司 | Capacity-dividing test method for eliminating climbing of lithium battery capacity |
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