CN201876343U - Lithium ion battery leakage detecting device - Google Patents

Lithium ion battery leakage detecting device Download PDF

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Publication number
CN201876343U
CN201876343U CN2010206199853U CN201020619985U CN201876343U CN 201876343 U CN201876343 U CN 201876343U CN 2010206199853 U CN2010206199853 U CN 2010206199853U CN 201020619985 U CN201020619985 U CN 201020619985U CN 201876343 U CN201876343 U CN 201876343U
Authority
CN
China
Prior art keywords
lithium ion
ion battery
battery
leakage
detecting
Prior art date
Application number
CN2010206199853U
Other languages
Chinese (zh)
Inventor
李梁
张政涛
贾学恒
Original Assignee
天津力神电池股份有限公司
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Filing date
Publication date
Application filed by 天津力神电池股份有限公司 filed Critical 天津力神电池股份有限公司
Priority to CN2010206199853U priority Critical patent/CN201876343U/en
Application granted granted Critical
Publication of CN201876343U publication Critical patent/CN201876343U/en

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Abstract

The utility model discloses a lithium ion battery leakage detecting device, which comprises a box and an organic compound component detector, wherein the box is used for holding lithium ion batteries to be detected. The lithium ion battery leakage detecting device is characterized in that a gas outlet is arranged at the top of the box, an inverted funnel is disposed at the gas outlet, and a detecting head of the organic compound component detector is positioned at an opening at the top of the funnel. Sealing effect of the lithium ion batteries is inspected by detecting external environment change caused by leakage of the lithium ion batteries, and thereby customers' loss caused by leakage and bulging potential safety hazards as a result of poor sealing performance of the batteries is avoided.

Description

A kind of lithium ion battery apparatus for testing weeping
Technical field
The utility model relates to a kind of pick-up unit of lithium ion battery sealing effectiveness.
Background technology
Advantages such as the polyalcohol flexible packing lithium ion battery has voltage height, specific energy height, recycles often, storage time is long, not only on portable electric appts, be used widely, and be widely used in big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool as mobile phone, Digital Video and laptop computer.
Polyalcohol flexible packing lithium ion battery phase square shaped and circular lithium ion battery have better external form dirigibility, thus by more applications in the electronic equipment of various pursuits fashion attractive in appearance.The environment of inside lithium ion cell working environment and outside batteries must be isolated fully, guarantees the operate as normal of battery, technically realizes that by modes such as welding or colloid sealings the quality of sealing determines that directly can battery operate as normal.
If cell sealing goes wrong, the electrolytic solution of inside battery then, gas etc. leak, and the air in the environment, moisture etc. enter battery and participate in electrochemical reaction and causes battery failure.With the polymer Li-ion battery is example, the battery internal and external environment isolate to be by the bonding relatively realization of internal layer polypropylene glue of one deck plastic-aluminum packaging film, and this mode can be with isolation such as the air in the electrode material in the working environment of inside battery, electrolytic solution, gas and the external environment condition, moisture, dust.If the glue-line adhesive effect of plastic-aluminum packaging film is poor, cause internal and external environment to communicate, then can cause inside battery electrolytic solution to leak (leakage), air enters the air-blowing that battery causes battery, discharges and recharges the forfeiture of function.
The utility model content
It is a kind of simple in structure that the utility model provides, and the lithium ion battery apparatus for testing weeping that accuracy is high can be checked the cell sealing quality, prevents that dead battery from causing potential safety hazard.
A kind of lithium ion battery apparatus for testing weeping, comprise the casing that holds lithium ion battery to be measured, the top of described casing has the gas outlet, the position, gas outlet is covered with inverted funnel, be provided with organic compound component detector, the detection head of this organic compound component detector is positioned at the opening part at described funnel top.
Battery does not have the organic gas composition to spill under the normal condition, and the organic component content of battery surrounding environment gas keeps certain substantially; If battery generation leakage, it spills bath composition and will inevitably evaporate in the battery ambient air, thereby causes near the increase of the air organic component content of battery.
The utility model promotes to spill the volatilization of electrolyte organic components by the method for heating and increase circulation of air, helps the judgement of gas composition content; Adopt photoionization (photoionization detector) organic compound volatile content detector (volatile organic compound) to detect near the constituent of air organic content of battery, and according to environmental baseline setting detection alarm value, whether leakage is judged to battery.If leakage does not take place battery, tester shows numerical value less than the reference value of setting according to environmental baseline, if battery generation leakage is arranged, tester shows numerical value greater than reference value, and instrument is reported to the police.
Determine the number of batteries of one-time detection according to the size of battery volume, bulky battery one-time detection quantity is few, and the battery one-time detection quantity that volume is little is many;
The beneficial effects of the utility model are: by leakage causes the detection of outside batteries environmental change to lithium ion battery, realized inspection, thereby avoided battery because the loss that the bad leakage bulging potential safety hazard that causes of sealing causes the client to the lithium ion battery sealing effectiveness.
Description of drawings
Fig. 1 is the structural representation of the utility model lithium ion battery apparatus for testing weeping.
Embodiment
Referring to accompanying drawing, a kind of lithium ion battery apparatus for testing weeping of the utility model, comprise the casing 4 that holds lithium ion battery to be measured, the top of casing 1 has the gas outlet, the position, gas outlet is covered with inverted funnel 3, lay the detection head 2 of organic compounds component detector 1 at the opening part at funnel 3 tops, detector 1 is fixed on casing 1 outer wall by support 5.
Casing 1 can be realized the heating to battery, promotes the volatilization of electrolytic solution; The electrolytic solution volatile component is diffused into the detection head position of tester by gas collector, causes the response of detector, makes the judgement that has or not battery leakage.
Under test environment, the detected environment organic component of consecutive intervals 1 minute record display instrument content, calculate mean value and standard deviation, the standard deviation that adds 6 times with this mean value is an environmental benchmark value, as 10 secondary data record mean value is 200PPb, standard deviation is 3, and then setting reference value is that 200+6 * 3=218 is a reference value;
Mesuring battary is placed on is heated to 40 ℃ of uniform temperatures in the seal box, and kept 30 minutes, promote the volatilization of electrolytic solution, the detection head of instrument is placed the outlet of funnel shaped gas gathering-device, observe the variation of displayed value, record when reaching maximal value, this moment, this numerical value was mesuring battary organic volatile components contents, if this is worth greater than reference value, then instrument is reported to the police automatically, illustrating has battery that leakage has taken place in the mesuring battary, cause organic component content increase in the closed box; If this value is less than reference value, then instrument can not reported to the police, and proves that the phenomenon of leakage does not take place mesuring battary.

Claims (1)

1. lithium ion battery apparatus for testing weeping, comprise the casing that holds lithium ion battery to be measured, it is characterized in that, the top of described casing has the gas outlet, the position, gas outlet is covered with inverted funnel, be provided with organic compound component detector, the detection head of this organic compound component detector is positioned at the opening part at described funnel top.
CN2010206199853U 2010-11-23 2010-11-23 Lithium ion battery leakage detecting device CN201876343U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206199853U CN201876343U (en) 2010-11-23 2010-11-23 Lithium ion battery leakage detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206199853U CN201876343U (en) 2010-11-23 2010-11-23 Lithium ion battery leakage detecting device

Publications (1)

Publication Number Publication Date
CN201876343U true CN201876343U (en) 2011-06-22

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CN2010206199853U CN201876343U (en) 2010-11-23 2010-11-23 Lithium ion battery leakage detecting device

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Country Link
CN (1) CN201876343U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494856A (en) * 2011-11-14 2012-06-13 天津力神电池股份有限公司 Automatic detecting equipment of polymer lithium ion battery leaked liquid
CN103471783A (en) * 2013-10-09 2013-12-25 中国东方电气集团有限公司 Nondestructive sodium battery leakage detecting method
CN104568324A (en) * 2014-12-20 2015-04-29 山东神工海特电子科技有限公司 Detecting method for flexible package battery packaging effect
CN104596706A (en) * 2015-02-10 2015-05-06 天津博益气动股份有限公司 Additional device for nitrogen hydrogen leak detector application occasion expansion
CN107850507A (en) * 2015-08-03 2018-03-27 株式会社Jet Sensor unit and air tightness checking device
CN108692887A (en) * 2018-05-17 2018-10-23 合肥国轩高科动力能源有限公司 A kind of device for detecting lithium ion battery airtightness
CN110887616A (en) * 2018-09-07 2020-03-17 江西格林德能源有限公司 Method for detecting leakage of tab glue part of soft package lithium ion battery

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494856A (en) * 2011-11-14 2012-06-13 天津力神电池股份有限公司 Automatic detecting equipment of polymer lithium ion battery leaked liquid
CN102494856B (en) * 2011-11-14 2014-02-12 天津力神电池股份有限公司 Automatic detecting equipment of polymer lithium ion battery leaked liquid
CN103471783A (en) * 2013-10-09 2013-12-25 中国东方电气集团有限公司 Nondestructive sodium battery leakage detecting method
CN104568324A (en) * 2014-12-20 2015-04-29 山东神工海特电子科技有限公司 Detecting method for flexible package battery packaging effect
CN104568324B (en) * 2014-12-20 2017-03-15 山东精工电子科技有限公司 A kind of detection method of flexible-packed battery packaging effect
CN104596706A (en) * 2015-02-10 2015-05-06 天津博益气动股份有限公司 Additional device for nitrogen hydrogen leak detector application occasion expansion
CN107850507A (en) * 2015-08-03 2018-03-27 株式会社Jet Sensor unit and air tightness checking device
CN108692887A (en) * 2018-05-17 2018-10-23 合肥国轩高科动力能源有限公司 A kind of device for detecting lithium ion battery airtightness
CN110887616A (en) * 2018-09-07 2020-03-17 江西格林德能源有限公司 Method for detecting leakage of tab glue part of soft package lithium ion battery

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Granted publication date: 20110622

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