CN103543381A - Square aluminum-shell battery short circuit detecting method and device - Google Patents
Square aluminum-shell battery short circuit detecting method and device Download PDFInfo
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- CN103543381A CN103543381A CN201310478391.3A CN201310478391A CN103543381A CN 103543381 A CN103543381 A CN 103543381A CN 201310478391 A CN201310478391 A CN 201310478391A CN 103543381 A CN103543381 A CN 103543381A
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- Prior art keywords
- square aluminum
- battery
- short
- aluminum housing
- batteries
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- 238000000034 method Methods 0.000 title claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- 239000011521 glass Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract 7
- 238000001514 detection method Methods 0.000 abstract 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a square aluminum-shell battery short circuit detecting method and device. The method includes: placing a to-be-detected square aluminum-shell batteries in an enclosed cavity; applying an even extrusion force to the lateral sides of the square aluminum-shell batteries, and keeping the extrusion state of the square aluminum-shell batteries when the set pressure is reached; performing short circuit detection on the square aluminum-shell batteries under the extrusion state; marking and the short-circuit square aluminum-shell batteries and taking the same out, and detecting the next group of batteries according to the same procedures. The short circuit detecting device can change strength of the extrusion force according to the requirements of testing conditions, and the device can be used to test short circuit conditions of batteries under different-degree extrusion states. The method and the device has the advantages that the extrusion states during battery use are simulated, short circuits are detected under the extrusion states, unqualified batteries with micro short circuits can be picked out, battery quality is improved, and potential safety hazard of batteries can be reduced.
Description
Technical field
The present invention relates to a kind of square aluminum housing battery method for detecting short circuit and device thereof.
Background technology
Lithium-ion-power cell is applied to electric automobile industry gradually, and therefore, people have proposed requirements at the higher level to the security performance of lithium ion battery.At present, most of aluminum-shell battery manufacturer adopts normalization to survey the mode of short circuit, after battery completes, directly whether short circuit of test battery both positive and negative polarity, anodal and aluminum hull, negative pole and aluminum hull, this mode can be measured the battery that short circuit contact area is larger, but micro-short circuit battery less or that could embody through tight extruding is but difficult to test out for internal short-circuit contact area.
Although can find part micro-short circuit battery in forming and capacity dividing, the operation such as standing, but at follow-up battery in groups in connection in series-parallel process, still there is the abnormal battery of a certain proportion of short circuit to occur, main cause be single battery from and joint group bag, module cartonning to completing the process of car load electric battery, battery is transitioned into and is arranged connection in series-parallel As-extruded closely by free state, the abnormity point of originally micro-contact under free state becomes contact short circuit point thoroughly gradually, may cause the problems such as battery module burning, flatulence, self discharge are large.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of square aluminum housing battery method for detecting short circuit.
The another one technical matters that the present invention will solve is to provide a kind of square aluminum housing battery short-circuit detecting device.
For square aluminum housing battery method for detecting short circuit, the technical solution used in the present invention is: comprise the following steps:
(1) square aluminum housing battery to be measured is placed in a cavity being enclosed, battery terminal upward;
(2) side to square aluminum housing battery applies a uniform extruding force, reaches and keeps after setup pressure value the square aluminum housing battery state that is squeezed constant;
(3) under the state being extruded at square aluminum housing battery, described square aluminum housing battery is carried out to short-circuit detecting;
(4) take out after the square aluminum housing battery being short-circuited is marked, by above-mentioned steps (1)-(3), next Battery pack is carried out to short-circuit detecting.
For square aluminum housing battery short-circuit detecting device, the technical solution used in the present invention is: comprise support, push pedal, cylinder, solenoid valve, pressurized air steam line; Support is provided with the space that holds electric battery, and push pedal is connected with cylinder by connecting rod; Cylinder is connected with solenoid valve by air duct; Solenoid valve is connected with pressurized air steam line; By pressurized air, promote cylinder and drive the electric battery on push pedal extruding support.
As preferably, also comprise rain glass; Rain glass is connected with solenoid valve.
As preferably, also comprise pedal; Pedal is connected and controls the operation of solenoid valve with solenoid valve.
The invention has the beneficial effects as follows:
The state that is squeezed during simulated battery is used detects battery short circuit under battery is squeezed state, can pick out the bad battery that comprises micro-short circuit, has improved battery quality, reduces battery potential safety hazard in use; It is source of the gas that short-circuit detecting device adopts pressurized air, can according to test condition need adjustable pressure size, and then change the size of extruding force, can be used for the short-circuit conditions of battery under test squeezed state in various degree.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of square aluminum housing battery short-circuit detecting device embodiment of the present invention.
In figure, 1-support, 2-stripper plate, 3-connecting rod, 4-cylinder, 5-solenoid valve, 6-rain glass, 7-pedal, 8-air duct, 9-steam line.
Embodiment
A kind of square aluminum housing battery short-circuit detecting device shown in Fig. 1, support is provided with a rectangular battery cavities 1, in battery cavities 1, there is stripper plate 2, stripper plate 2 is connected to cylinder 4 by telescopic connecting rod 3, cylinder 4 is connected with solenoid valve 5 by air duct 8, solenoid valve 5 is connected with steam line 9, and the compressed air inlet port of steam line 9 is provided with rain glass 6, and pedal 7 is controlled the operation of solenoid valve 5.
Method for detecting short circuit:
When square shaped aluminum-shell battery carries out short-circuit detecting, first mesuring battary is put into and marshalling from the upper opening of battery cavities 1, stepping on pedal 7 connects solenoid valve 5, cylinder 4 operations, connecting rod 3 promotes stripper plate 2 to a side shifting of mesuring battary the side of contact measured battery, and progressively push mesuring battary until set pressure time keep the battery state that is squeezed constant, then with short circuit tester, mesuring battary is carried out to short-circuit test.
To the material of battery cavities on support, require wear-resisting and hardness is enough strong, can bear certain pressure, not yielding; The sectional area of stripper plate 2 is slightly larger than the lateralarea of aluminum-shell battery, when guaranteeing that battery is extruded stressed evenly, and stripper plate size can change according to actual needs, can meet like this battery testing demand of different model.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present invention.
Claims (4)
1. a square aluminum housing battery method for detecting short circuit, is characterized in that comprising the following steps:
(1) square aluminum housing battery to be measured is placed in a cavity being enclosed, battery terminal upward;
(2) side to square aluminum housing battery applies a uniform extruding force, reaches and keeps after setup pressure value the square aluminum housing battery state that is squeezed constant;
(3) under the state being extruded at square aluminum housing battery, described square aluminum housing battery is carried out to short-circuit detecting;
(4) take out after the square aluminum housing battery being short-circuited is marked, by above-mentioned steps (1)-(3), next Battery pack is carried out to short-circuit detecting.
2. a square aluminum housing battery short-circuit detecting device, is characterized in that: comprise support, push pedal, cylinder, solenoid valve, pressurized air steam line; Described support is provided with the space that holds electric battery, and described push pedal is connected with cylinder by connecting rod; Described cylinder is connected with solenoid valve by air duct; Described solenoid valve is connected with pressurized air steam line; By pressurized air, promote cylinder and drive the electric battery on push pedal extruding support.
3. square aluminum housing battery short-circuit detecting device according to claim 2, is characterized in that: also comprise rain glass; Described rain glass is connected with solenoid valve.
4. square aluminum housing battery short-circuit detecting device according to claim 2, is characterized in that: also comprise pedal; Described pedal is connected and controls the operation of solenoid valve with solenoid valve.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310478391.3A CN103543381A (en) | 2013-10-14 | 2013-10-14 | Square aluminum-shell battery short circuit detecting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310478391.3A CN103543381A (en) | 2013-10-14 | 2013-10-14 | Square aluminum-shell battery short circuit detecting method and device |
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| CN103543381A true CN103543381A (en) | 2014-01-29 |
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| CN201310478391.3A Pending CN103543381A (en) | 2013-10-14 | 2013-10-14 | Square aluminum-shell battery short circuit detecting method and device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106104285A (en) * | 2014-03-18 | 2016-11-09 | 罗伯特·博世有限公司 | For identifying the abnormal method in battery cell and short circuit sensing device |
| CN108120937A (en) * | 2017-12-06 | 2018-06-05 | 浙江衡远新能源科技有限公司 | A kind of power battery internal short-circuit test method and device |
| CN105807235B (en) * | 2016-05-07 | 2018-11-02 | 合肥国轩高科动力能源有限公司 | A kind of method that battery pole and shell short circuit are quickly detected under low-voltage |
| CN109490792A (en) * | 2018-10-19 | 2019-03-19 | 合肥国轩高科动力能源有限公司 | A kind of fail battery selection method in the big mould group of lithium ion battery self discharge |
| CN110426647A (en) * | 2019-07-03 | 2019-11-08 | 江西恒动新能源有限公司 | A kind of power lithium-ion battery negative pressure survey short-circuiting method |
| CN111722129A (en) * | 2020-06-01 | 2020-09-29 | 国联汽车动力电池研究院有限责任公司 | Battery micro short circuit detection method and system |
| WO2023167432A1 (en) * | 2022-03-02 | 2023-09-07 | 주식회사 엘지에너지솔루션 | Pressure short circuit inspection device and pressure short circuit inspection method for battery cell |
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| CN102636720A (en) * | 2012-04-10 | 2012-08-15 | 东莞市特耐克新能源科技有限公司 | Short-circuit testing device and testing method for lithium ion battery after assembling |
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| CN103207348A (en) * | 2013-03-22 | 2013-07-17 | 奇瑞汽车股份有限公司 | Automatic detection device for detecting short circuit of large-capacity power lithium ion cell through high voltage and detection method thereof |
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| JP2009204401A (en) * | 2008-02-27 | 2009-09-10 | Nec Corp | Internal short circuit detecting device and method of secondary battery |
| CN101806864A (en) * | 2010-03-18 | 2010-08-18 | 恒正科技（苏州）有限公司 | Safety test box of battery pack |
| CN102636720A (en) * | 2012-04-10 | 2012-08-15 | 东莞市特耐克新能源科技有限公司 | Short-circuit testing device and testing method for lithium ion battery after assembling |
| CN102645610A (en) * | 2012-04-25 | 2012-08-22 | 中航锂电（洛阳）有限公司 | Point contact type cell pressure short circuit testing device |
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| CN103018624A (en) * | 2012-12-27 | 2013-04-03 | 天津力神电池股份有限公司 | Detection method for plate set short circuit of flexible packaging batteries |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106104285A (en) * | 2014-03-18 | 2016-11-09 | 罗伯特·博世有限公司 | For identifying the abnormal method in battery cell and short circuit sensing device |
| CN106104285B (en) * | 2014-03-18 | 2019-03-15 | 罗伯特·博世有限公司 | Abnormal method in battery cell and short-circuit sensing device for identification |
| CN105807235B (en) * | 2016-05-07 | 2018-11-02 | 合肥国轩高科动力能源有限公司 | A kind of method that battery pole and shell short circuit are quickly detected under low-voltage |
| CN108120937A (en) * | 2017-12-06 | 2018-06-05 | 浙江衡远新能源科技有限公司 | A kind of power battery internal short-circuit test method and device |
| CN109490792A (en) * | 2018-10-19 | 2019-03-19 | 合肥国轩高科动力能源有限公司 | A kind of fail battery selection method in the big mould group of lithium ion battery self discharge |
| CN110426647A (en) * | 2019-07-03 | 2019-11-08 | 江西恒动新能源有限公司 | A kind of power lithium-ion battery negative pressure survey short-circuiting method |
| CN111722129A (en) * | 2020-06-01 | 2020-09-29 | 国联汽车动力电池研究院有限责任公司 | Battery micro short circuit detection method and system |
| CN111722129B (en) * | 2020-06-01 | 2023-08-15 | 国联汽车动力电池研究院有限责任公司 | Battery micro-short circuit detection method and system |
| WO2023167432A1 (en) * | 2022-03-02 | 2023-09-07 | 주식회사 엘지에너지솔루션 | Pressure short circuit inspection device and pressure short circuit inspection method for battery cell |
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| CB02 | Change of applicant information |
Address after: 230000 Yaohai Industrial Zone, Hefei New District, Anhui, No. D weft Road, No. 7 Applicant after: Gotion High-tech Co., Ltd. Address before: 230000 Yaohai Industrial Park, Anhui, Hefei No. D weft Road, No. 7 Applicant before: Hefei Guoxuan High-Tech Power Energy Co.,Ltd. |
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Application publication date: 20140129 |
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| RJ01 | Rejection of invention patent application after publication |