CN103302040A - Screening method for lithium-ion battery consistency - Google Patents
Screening method for lithium-ion battery consistency Download PDFInfo
- Publication number
- CN103302040A CN103302040A CN2013102324782A CN201310232478A CN103302040A CN 103302040 A CN103302040 A CN 103302040A CN 2013102324782 A CN2013102324782 A CN 2013102324782A CN 201310232478 A CN201310232478 A CN 201310232478A CN 103302040 A CN103302040 A CN 103302040A
- Authority
- CN
- China
- Prior art keywords
- battery
- capacity
- internal resistance
- voltage
- voltage drop
- 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.)
- Pending
Links
Images
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of the detection of a battery, and in particular relates to a screening method for lithium-ion battery consistency. The method is characterized in that the screening is carried out according to the limit capacity, the limit internal resistance and the limit voltage droop in a high-temperature environment, a low-temperature environment or a normal-temperature environment of a single battery; the battery is charged and discharged, so that the screening can be further carried out by comparing the variation of the capacity, the voltages and the currents in the charging and discharging processes, the application efficiency of the single battery can be improved, the service life of the single battery can be prolonged, and the safety of the single battery can be improved.
Description
Technical field
The present invention relates to the battery detecting technical field, particularly relate to the conforming screening technique of a kind of lithium ion battery.
Background technology
At present, has energy density high, long service life, being widely used of the green power supply that security performance is good----lithium ion battery.Lithium ion battery is widely used in the fields such as energy storage, power.Test is found, the same battery of making, and will be lower than the service life of cell the service life of battery pack, and this explanation battery consistency obviously affects the service life of battery.In the connection in series-parallel of battery was used, the consistency problem of battery affected efficient and the life-span of battery, and safety problem is also influential.So the conforming requirement that combines the cell of battery pack should be stricter.
Guarantee the uniformity of battery, will guarantee that at first every initial performance of battery is consistent, the self discharge of battery will be consistent, and fading rate in use will be consistent.The conforming screening of current battery mainly is to utilize under normal temperature, low temperature and the hot environment battery capacity, internal resistance, voltage, discharge and recharge discharge platform and self discharge difference is screened.
The battery that screens falls by different temperatures lower limit constant volume scope, restriction internal resistance scope and stop voltage, can guarantee that battery initial performance, self-discharge performance are consistent, do not verify whether battery discharging and recharging in the process of using be synchronous, can not guarantee that fading rate in use is consistent.Reason is, the screening technique of existing battery can not reflect cell DC internal resistance and polarization resistance, and there is defective in the uniformity of battery.
The lithium ion battery group is to be formed by connecting through connection in series-parallel by a plurality of cells, but because the performance of each cell there are differences, the performance of battery pack is through having decline in various degree after certain charge and discharge cycles, show as that the conforming difference of monomer battery core becomes large in the acceleration of capacity attenuation and the battery pack, therefore must carry out strict selecting at battery before in groups.If the uniformity of cell is bad, charge and discharge process can strengthen the difference between the monomer battery core so, easily cause the part battery over-discharge or overcharge, and the performance of another part battery also can not get fully playing, finally cause the deteriorated of battery performance, the decay of battery pack cycle performance or inefficacy.
As everyone knows, the uniformity that how to guarantee each cell in the battery pack is the key that guarantees battery performance, also is that present lithium ion battery is at the bottleneck of various fields successful Application.
Summary of the invention
The purpose of this invention is to provide the conforming screening technique of a kind of lithium ion battery, it can guarantee under the state of work, and the charging and discharging state of lithium ion single battery that forms battery pack is synchronous, further improves the uniformity of battery.
Method of the present invention is to fall and screen according to the restriction capacity under cell high temperature, low temperature or the normal temperature varying environment, restriction internal resistance, stop voltage;
Battery discharges and recharges, and relatively capacity, voltage, curent change are done further screening in the charge and discharge process.
Method concrete steps of the present invention are as follows:
Filter out the lithium ion single battery of under equal conditions producing, namely the raw material of battery form and the preparation technology of battery waits and wants unanimously;
Battery is carried out outward appearance to be screened: battery must without flatulence, qualified without leakage, surface nothing scuffing and apparent size, filter out the qualified battery of outward appearance;
The qualified battery that filters out at room temperature under 20～30 ℃, is shelved preheating setting time: 14～28 days;
According to cell high temperature: 40～60 ℃, low temperature :-40～0 ℃ or normal temperature: the capacity under 20～30 ℃ the varying environment, internal resistance, voltage drop are added up and are screened;
Measure capacity, internal resistance, the voltage drop of standby screening battery under different temperature ranges;
Measured capacity, internal resistance and voltage drop out averaged;
Be greater than or less than the battery of the predetermined percentage of capacity, internal resistance, voltage drop mean value, be judged to be unusual battery, rejected;
The battery that previous step is not rejected carries out discharging and recharging of Work condition analogue, the charging and discharging currents scope is at 0.1～3C, capacity, voltage or current measurement data in the discharge process are derived, be drawn as curve map, the variation tendency of the capacity among the analytic curve figure, voltage or electric current is progressively rejected the battery that curve distribution is unusual.
The present invention has the following advantages compared with prior art:
The present invention can improve service efficiency, service life and the security of cell by being further to screen synchronously to capacity, voltage, electric current in the charge and discharge process of cell.
Description of drawings
Fig. 1 is screening process figure of the present invention,
Fig. 2 is 27 battery discharge voltage change curve distribution figure of the embodiment of the invention,
Fig. 3 is 16 battery discharge voltage change curve distribution figure of the embodiment of the invention,
Fig. 4 is 10 battery discharge voltage change curve distribution figure of the embodiment of the invention.
The specific embodiment
Method concrete steps of the present invention are as follows:
Filter out the lithium ion single battery of under equal conditions producing, namely the raw material of battery form and the preparation technology of battery waits and wants unanimously;
Battery is carried out outward appearance to be screened: battery must without flatulence, qualified without leakage, surface nothing scuffing and apparent size, filter out the qualified battery of outward appearance;
The qualified battery that filters out at room temperature under 20～30 ℃, is shelved preheating setting time: 14～28 days;
According to cell high temperature: 40～60 ℃, low temperature :-40～0 ℃ or normal temperature: the capacity under 20～30 ℃ the varying environment, internal resistance, voltage drop are added up and are screened;
Measure capacity, internal resistance, the voltage drop of standby screening battery under different temperature ranges;
Measured capacity, internal resistance and voltage drop out averaged;
Be greater than or less than the battery of the predetermined percentage of capacity, internal resistance, voltage drop mean value, be judged to be unusual battery, rejected;
The battery that previous step is not rejected carries out discharging and recharging of Work condition analogue, the charging and discharging currents scope is at 0.1～3C, capacity, voltage or current measurement data in the discharge process are derived, be drawn as curve map, the variation tendency of the capacity among the analytic curve figure, voltage or electric current is progressively rejected the battery that curve distribution is unusual;
To the screening of discharging of the lithium ion of 27 100Ah not rejecting;
The Work condition analogue that battery is discharged with 0.5C, 0.8C and 1C:
The charge-discharge test scheme:
Shelve: 60 seconds
Constant-current discharge: 50A deadline: 10 seconds; Voltage: 2.50V;
Shelve: 60 seconds
Constant-current discharge: 80A deadline: 10 seconds; Voltage: 2.50V;
Shelve: 60 seconds
Constant-current discharge: 100A deadline: 10 seconds; Voltage: 2.50V;
Shelve: stopped in 60 seconds
During Work condition analogue, shelve 3S writing time, electric discharge recording time 1S.
Data derive
Data analysis
Analyze the voltage change in the battery charge and discharge process, 27 batteries that analysis is found to screen carry out primary election 11 batteries that difference is large and give up in the situation that with current discharge, the variation of voltage has very large difference, remain 16 cells;
To the voltage change in the analysis of the battery after the primary election charge and discharge process, carry out two choosings, 6 batteries that difference is large and give up, remain 10 batteries;
Be further analyzed discovery through 10 batteries after two choosings, the variation of voltage in the process that discharges and recharges of remaining battery is consistent, screens complete.
Claims (1)
1. the conforming screening technique of lithium ion battery is characterized in that comprising the steps:
Filter out the lithium ion single battery of under equal conditions producing, namely the raw material of battery form and the preparation technology of battery waits and wants unanimously;
Battery is carried out outward appearance to be screened: battery must without flatulence, qualified without leakage, surface nothing scuffing and apparent size, filter out the qualified battery of outward appearance;
The qualified battery that filters out at room temperature under 20～30 ℃, is shelved preheating setting time: 14～28 days;
According to cell high temperature: 40～60 ℃, low temperature :-40～0 ℃ or normal temperature: the capacity under 20～30 ℃ the varying environment, internal resistance, voltage drop are added up and are screened;
Measure capacity, internal resistance, the voltage drop of standby screening battery under different temperature ranges;
Measured capacity, internal resistance and voltage drop out averaged;
Be greater than or less than the battery of the predetermined percentage of capacity, internal resistance, voltage drop mean value, be judged to be unusual battery, rejected;
The battery that previous step is not rejected carries out discharging and recharging of Work condition analogue, the charging and discharging currents scope is at 0.1～3C, capacity, voltage or current measurement data in the discharge process are derived, be drawn as curve map, the variation tendency of the capacity among the analytic curve figure, voltage or electric current is progressively rejected the battery that curve distribution is unusual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102324782A CN103302040A (en) | 2013-06-13 | 2013-06-13 | Screening method for lithium-ion battery consistency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102324782A CN103302040A (en) | 2013-06-13 | 2013-06-13 | Screening method for lithium-ion battery consistency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103302040A true CN103302040A (en) | 2013-09-18 |
Family
ID=49128010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102324782A Pending CN103302040A (en) | 2013-06-13 | 2013-06-13 | Screening method for lithium-ion battery consistency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103302040A (en) |
Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316852A (en) * | 2013-05-24 | 2013-09-25 | 上海中聚佳华电池科技有限公司 | Battery selecting method |
| CN103464388A (en) * | 2013-09-26 | 2013-12-25 | 上海动力储能电池***工程技术有限公司 | Lithium ion battery screening method |
| CN103840225A (en) * | 2014-03-27 | 2014-06-04 | 合肥国轩高科动力能源股份公司 | Screening method for lithium ion battery |
| CN104190639A (en) * | 2014-07-29 | 2014-12-10 | 江西世纪长河新电源有限公司 | Self-discharge screening method of lithium ion batteries |
| CN104237802A (en) * | 2014-09-23 | 2014-12-24 | 中国检验检疫科学研究院 | Detection method for low-temperature performance uniformity of lithium ion batteries |
| CN104259114A (en) * | 2014-09-16 | 2015-01-07 | 双登集团股份有限公司 | Screening method of lithium ion batteries with high self-discharging capacities |
| 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 |
| CN104991201A (en) * | 2015-07-30 | 2015-10-21 | 国家电网公司 | Lithium ion battery cell consistency evaluation system and method |
| CN105093125A (en) * | 2015-07-30 | 2015-11-25 | 国家电网公司 | Single nickel-hydrogen battery consistency evaluation system and method |
| CN105251706A (en) * | 2015-11-03 | 2016-01-20 | 百顺松涛（天津）动力电池科技发展有限公司 | Method for sorting lithium batteries |
| CN105396800A (en) * | 2015-12-30 | 2016-03-16 | 哈尔滨工业大学 | Screening method for lithium-ion storage battery |
| WO2016107198A1 (en) * | 2014-12-30 | 2016-07-07 | 深圳市科陆电子科技股份有限公司 | Method and device for analyzing and processing capacity drop of lithium battery energy storage system |
| CN105866701A (en) * | 2016-06-27 | 2016-08-17 | 上海电气钠硫储能技术有限公司 | Method for detecting uniformity of sodium-sulfur batteries |
| CN105903692A (en) * | 2016-05-19 | 2016-08-31 | 四川长虹电器股份有限公司 | Lithium ion battery consistency screening method |
| CN106207284A (en) * | 2016-07-29 | 2016-12-07 | 中天储能科技有限公司 | A kind of method promoting ferric phosphate lithium cell partial volume Capacity uniformity |
| CN106311634A (en) * | 2016-08-30 | 2017-01-11 | 北京华特时代电动汽车技术有限公司 | Battery module screening method and power battery pack screening method |
| CN106984561A (en) * | 2017-03-09 | 2017-07-28 | 梅州市量能新能源科技有限公司 | A kind of screening technique of power lithium-ion battery |
| CN107091991A (en) * | 2017-04-28 | 2017-08-25 | 天津力神电池股份有限公司 | Lithium ion battery voltage conformity classification method |
| CN107127166A (en) * | 2017-05-22 | 2017-09-05 | 广东亿纬赛恩斯新能源***有限公司 | A kind of method for separating and lithium battery of lithium battery uniformity |
| CN107983667A (en) * | 2017-11-23 | 2018-05-04 | 中国东方电气集团有限公司 | A kind of lithium ion battery grouping method |
| CN108267694A (en) * | 2017-12-18 | 2018-07-10 | 合肥国轩高科动力能源有限公司 | A kind of lithium ion battery internal resistance method for separating |
| CN108461858A (en) * | 2018-03-23 | 2018-08-28 | 上海应用技术大学 | A kind of screening technique that lithium titanate battery echelon utilizes |
| CN109332218A (en) * | 2018-09-30 | 2019-02-15 | 江西安驰新能源科技有限公司 | A kind of detection of lithium ion battery self discharge and combo technique |
| CN109683094A (en) * | 2018-12-19 | 2019-04-26 | 武汉新能源研究院有限公司 | A kind of quick method for separating and its sorting unit of lithium ion battery |
| CN110201913A (en) * | 2019-05-29 | 2019-09-06 | 河南电池研究院有限公司 | A kind of screening technique of soft bag lithium ionic cell consistency |
| CN110836741A (en) * | 2019-11-20 | 2020-02-25 | 安徽必达新能源汽车产业研究院有限公司 | Pure electric vehicle efficiency consistency online testing method |
| CN111842222A (en) * | 2020-07-07 | 2020-10-30 | 横店集团东磁股份有限公司 | Lithium battery capacity grading capacity compensation method, storage medium and lithium battery capacity grading equipment |
| CN112415416A (en) * | 2020-11-12 | 2021-02-26 | 河北零点新能源科技有限公司 | Method for rapidly detecting consistency of lithium batteries |
| CN113369176A (en) * | 2021-06-13 | 2021-09-10 | 广州菲利斯太阳能科技有限公司 | Sorting method and system for recycling retired batteries |
| CN113714152A (en) * | 2021-08-26 | 2021-11-30 | 深圳市今朝时代股份有限公司 | Energy storage type super capacitor screening method applied to aerospace power supply |
| CN113851657A (en) * | 2021-10-19 | 2021-12-28 | 山东银成新能源科技有限公司 | Preparation method of ultralow-temperature high-rate lithium ion battery for electronic cigarette |
| CN114035066A (en) * | 2021-10-21 | 2022-02-11 | 合肥国轩高科动力能源有限公司 | Lithium battery consistency evaluation method |
| CN114047444A (en) * | 2021-11-09 | 2022-02-15 | 中国南方电网有限责任公司超高压输电公司广州局 | Storage battery health condition evaluation method and device |
| CN114589123A (en) * | 2022-04-25 | 2022-06-07 | 江西安驰新能源科技有限公司 | Battery consistency screening method |
| CN114918159A (en) * | 2022-05-16 | 2022-08-19 | 杭州煦达新能源科技有限公司 | Screening method of retired lithium ion power battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09219215A (en) * | 1996-02-07 | 1997-08-19 | Japan Storage Battery Co Ltd | Lithium ion battery |
| CN101907688A (en) * | 2010-08-02 | 2010-12-08 | 天津力神电池股份有限公司 | Method for detecting electrical property consistency of lithium ion battery |
| CN102760914A (en) * | 2012-07-20 | 2012-10-31 | 深圳市雄韬电源科技股份有限公司 | Matching method for lithium ion power batteries |
| CN102861726A (en) * | 2011-07-05 | 2013-01-09 | 广州丰江电池新技术股份有限公司 | Lithium secondary battery consistency screening method |
-
2013
- 2013-06-13 CN CN2013102324782A patent/CN103302040A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09219215A (en) * | 1996-02-07 | 1997-08-19 | Japan Storage Battery Co Ltd | Lithium ion battery |
| CN101907688A (en) * | 2010-08-02 | 2010-12-08 | 天津力神电池股份有限公司 | Method for detecting electrical property consistency of lithium ion battery |
| CN102861726A (en) * | 2011-07-05 | 2013-01-09 | 广州丰江电池新技术股份有限公司 | Lithium secondary battery consistency screening method |
| CN102760914A (en) * | 2012-07-20 | 2012-10-31 | 深圳市雄韬电源科技股份有限公司 | Matching method for lithium ion power batteries |
Cited By (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316852A (en) * | 2013-05-24 | 2013-09-25 | 上海中聚佳华电池科技有限公司 | Battery selecting method |
| CN103464388B (en) * | 2013-09-26 | 2015-04-01 | 上海动力储能电池***工程技术有限公司 | Lithium ion battery screening method |
| CN103464388A (en) * | 2013-09-26 | 2013-12-25 | 上海动力储能电池***工程技术有限公司 | Lithium ion battery screening method |
| 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 |
| CN103840225A (en) * | 2014-03-27 | 2014-06-04 | 合肥国轩高科动力能源股份公司 | Screening method for lithium ion battery |
| CN103840225B (en) * | 2014-03-27 | 2016-09-14 | 合肥国轩高科动力能源有限公司 | A kind of screening technique of lithium ion battery |
| CN104190639A (en) * | 2014-07-29 | 2014-12-10 | 江西世纪长河新电源有限公司 | Self-discharge screening method of lithium ion batteries |
| CN104259114A (en) * | 2014-09-16 | 2015-01-07 | 双登集团股份有限公司 | Screening method of lithium ion batteries with high self-discharging capacities |
| CN104237802A (en) * | 2014-09-23 | 2014-12-24 | 中国检验检疫科学研究院 | Detection method for low-temperature performance uniformity of lithium ion batteries |
| WO2016107198A1 (en) * | 2014-12-30 | 2016-07-07 | 深圳市科陆电子科技股份有限公司 | Method and device for analyzing and processing capacity drop of lithium battery energy storage system |
| CN104991201A (en) * | 2015-07-30 | 2015-10-21 | 国家电网公司 | Lithium ion battery cell consistency evaluation system and method |
| CN105093125A (en) * | 2015-07-30 | 2015-11-25 | 国家电网公司 | Single nickel-hydrogen battery consistency evaluation system and method |
| CN105251706A (en) * | 2015-11-03 | 2016-01-20 | 百顺松涛（天津）动力电池科技发展有限公司 | Method for sorting lithium batteries |
| CN105396800A (en) * | 2015-12-30 | 2016-03-16 | 哈尔滨工业大学 | Screening method for lithium-ion storage battery |
| CN105903692B (en) * | 2016-05-19 | 2018-05-25 | 四川长虹电器股份有限公司 | Lithium ion battery conformity classification method |
| CN105903692A (en) * | 2016-05-19 | 2016-08-31 | 四川长虹电器股份有限公司 | Lithium ion battery consistency screening method |
| CN105866701B (en) * | 2016-06-27 | 2019-01-29 | 上海电气钠硫储能技术有限公司 | A kind of sodium-sulphur battery consistency detecting method |
| CN105866701A (en) * | 2016-06-27 | 2016-08-17 | 上海电气钠硫储能技术有限公司 | Method for detecting uniformity of sodium-sulfur batteries |
| CN106207284A (en) * | 2016-07-29 | 2016-12-07 | 中天储能科技有限公司 | A kind of method promoting ferric phosphate lithium cell partial volume Capacity uniformity |
| CN106311634A (en) * | 2016-08-30 | 2017-01-11 | 北京华特时代电动汽车技术有限公司 | Battery module screening method and power battery pack screening method |
| CN106984561A (en) * | 2017-03-09 | 2017-07-28 | 梅州市量能新能源科技有限公司 | A kind of screening technique of power lithium-ion battery |
| CN107091991A (en) * | 2017-04-28 | 2017-08-25 | 天津力神电池股份有限公司 | Lithium ion battery voltage conformity classification method |
| CN107127166A (en) * | 2017-05-22 | 2017-09-05 | 广东亿纬赛恩斯新能源***有限公司 | A kind of method for separating and lithium battery of lithium battery uniformity |
| CN107127166B (en) * | 2017-05-22 | 2019-06-25 | 广东亿纬赛恩斯新能源***有限公司 | A kind of method for separating and lithium battery of lithium battery consistency |
| CN107983667A (en) * | 2017-11-23 | 2018-05-04 | 中国东方电气集团有限公司 | A kind of lithium ion battery grouping method |
| CN108267694A (en) * | 2017-12-18 | 2018-07-10 | 合肥国轩高科动力能源有限公司 | A kind of lithium ion battery internal resistance method for separating |
| CN108461858A (en) * | 2018-03-23 | 2018-08-28 | 上海应用技术大学 | A kind of screening technique that lithium titanate battery echelon utilizes |
| CN109332218A (en) * | 2018-09-30 | 2019-02-15 | 江西安驰新能源科技有限公司 | A kind of detection of lithium ion battery self discharge and combo technique |
| CN109332218B (en) * | 2018-09-30 | 2021-06-15 | 江西安驰新能源科技有限公司 | Self-discharge detection and matching process of lithium ion battery |
| CN109683094A (en) * | 2018-12-19 | 2019-04-26 | 武汉新能源研究院有限公司 | A kind of quick method for separating and its sorting unit of lithium ion battery |
| CN110201913A (en) * | 2019-05-29 | 2019-09-06 | 河南电池研究院有限公司 | A kind of screening technique of soft bag lithium ionic cell consistency |
| CN110201913B (en) * | 2019-05-29 | 2020-12-29 | 河南电池研究院有限公司 | Screening method for consistency of soft package lithium ion battery |
| CN110836741A (en) * | 2019-11-20 | 2020-02-25 | 安徽必达新能源汽车产业研究院有限公司 | Pure electric vehicle efficiency consistency online testing method |
| CN111842222A (en) * | 2020-07-07 | 2020-10-30 | 横店集团东磁股份有限公司 | Lithium battery capacity grading capacity compensation method, storage medium and lithium battery capacity grading equipment |
| CN112415416A (en) * | 2020-11-12 | 2021-02-26 | 河北零点新能源科技有限公司 | Method for rapidly detecting consistency of lithium batteries |
| CN113369176A (en) * | 2021-06-13 | 2021-09-10 | 广州菲利斯太阳能科技有限公司 | Sorting method and system for recycling retired batteries |
| CN113369176B (en) * | 2021-06-13 | 2023-02-28 | 广州菲利斯太阳能科技有限公司 | Sorting method and system for recycling retired batteries |
| CN113714152B (en) * | 2021-08-26 | 2023-02-28 | 深圳市今朝时代股份有限公司 | Energy storage type super capacitor screening method applied to aerospace power supply |
| CN113714152A (en) * | 2021-08-26 | 2021-11-30 | 深圳市今朝时代股份有限公司 | Energy storage type super capacitor screening method applied to aerospace power supply |
| CN113851657A (en) * | 2021-10-19 | 2021-12-28 | 山东银成新能源科技有限公司 | Preparation method of ultralow-temperature high-rate lithium ion battery for electronic cigarette |
| CN114035066A (en) * | 2021-10-21 | 2022-02-11 | 合肥国轩高科动力能源有限公司 | Lithium battery consistency evaluation method |
| CN114047444A (en) * | 2021-11-09 | 2022-02-15 | 中国南方电网有限责任公司超高压输电公司广州局 | Storage battery health condition evaluation method and device |
| CN114047444B (en) * | 2021-11-09 | 2024-05-28 | 中国南方电网有限责任公司超高压输电公司广州局 | Method and device for evaluating health condition of storage battery |
| CN114589123A (en) * | 2022-04-25 | 2022-06-07 | 江西安驰新能源科技有限公司 | Battery consistency screening method |
| CN114918159A (en) * | 2022-05-16 | 2022-08-19 | 杭州煦达新能源科技有限公司 | Screening method of retired lithium ion power battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103302040A (en) | Screening method for lithium-ion battery consistency | |
| CN103611692B (en) | Lithium iron phosphate power battery consistency matching screening method | |
| CN110165319B (en) | Sorting method for self-discharge performance of high-capacity lithium battery | |
| CN103545567B (en) | A kind of method of quick sorting lithium ion battery | |
| CN103316852B (en) | Battery selecting method | |
| WO2018209784A1 (en) | Lithium precipitation detection method for battery, battery management system, and battery system | |
| CN108508365B (en) | Lithium ion battery self-discharge screening method | |
| JP7076495B2 (en) | How to quickly group and repair used batteries | |
| CN107607881A (en) | A kind of evaluation method of lithium-ion-power cell self discharge uniformity | |
| CN107597619A (en) | Lithium titanate cell uniformity method for separating | |
| CN106824831A (en) | A kind of manufacture method of the motive-power battery for improving lithium ion battery uniformity | |
| CN103346358B (en) | Grouping method of lead-acid battery | |
| CN109494412B (en) | LFP lithium ion battery cell capacity grading screening method | |
| CN104668207A (en) | Method for enhancing screening consistency of lithium-ion power battery | |
| CN103995232B (en) | A kind of detection method of lithium iron phosphate dynamic battery group peak value charge-discharge performance | |
| CN107617582B (en) | Echelon utilization screening and grouping method for power cells | |
| CN103022569A (en) | Grouping method of lithium battery | |
| CN107511340A (en) | A kind of lithium-ion-power cell sorts method for group matching | |
| CN102231446B (en) | Method for controlling consistency of power battery pack | |
| CN104037461B (en) | Power train in vehicle application lithium ion battery grouping method | |
| CN104459558A (en) | Lithium ion battery screening method | |
| CN102728564A (en) | Screening method of lithium cobaltate monomer batteries | |
| CN103008261A (en) | Method for sorting degrees of self-discharging of lithium ion batteries | |
| CN107607874A (en) | The bikini screening technique of quick charge/discharge lithium ion battery | |
| CN103594742A (en) | Sorting and grouping method for power lead-acid storage battery set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130918 |