CN102849364A - Safety protection device and method for lithium ion battery - Google Patents

Safety protection device and method for lithium ion battery Download PDF

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Publication number
CN102849364A
CN102849364A CN2012103081270A CN201210308127A CN102849364A CN 102849364 A CN102849364 A CN 102849364A CN 2012103081270 A CN2012103081270 A CN 2012103081270A CN 201210308127 A CN201210308127 A CN 201210308127A CN 102849364 A CN102849364 A CN 102849364A
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China
Prior art keywords
lithium ion
ion battery
battery safety
container
explosion
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CN2012103081270A
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Chinese (zh)
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CN102849364B (en
Inventor
高锋柱
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Chery New Energy Automobile Co Ltd
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SAIC Chery Automobile Co Ltd
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Publication of CN102849364B publication Critical patent/CN102849364B/en
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  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The invention aims to provide a safety protection device and method for a lithium ion battery in order to prevent battery explosion and firing in high temperature aging and long-distance transportation of the battery. The safety protection device for the lithium ion battery comprises a container made of insulated plastic material, and anti-explosion fire extinguishing liquid is contained in the container. In high temperature ageing and long-distance transportation, the safety protection device for the lithium ion battery is arranged above the lithium ion battery, so that when the battery explodes, the container is ruptured, the anti-explosion fire extinguishing liquid in the container is directly injected into the exploded battery to block burning and further explosion, and a protection effect is achieved. The safety protection device for the lithium ion battery disclosed by the invention has a simple structure and is low in cost, and the protection method is safe and effective and has strong maneuverability.

Description

A kind of lithium ion battery safety device and method
Technical field
The invention belongs to technical field of lithium ion, specially refer to safety apparatus and the method for high-temperature lithium ion battery ageing and long-distance transport.
Background technology
Along with the widespread use of lithium ion battery on the products such as handheld mobile device, power tool and electronlmobil, the battery of Different Package mode and different production methods is more and more, particularly the product of the high-capacity high-power lithium ion battery favorite in market especially.But no matter be what form or how high-capacity lithium cell, blast all easily appears in battery when high temperature ageing and long-distance transport, and often causes fire or life security problem, affects the lethal factor of battery development thereby become present stage.
At present, lithium ion cell positive adopts one or more in metallic oxide such as cobalt acid lithium, LiMn2O4, LiFePO4, the ternary material etc. more, negative pole is one or more in carbon, silicon, the tin etc., add adhesive and be coated on the metal collector and consist of effective battery positive and negative electrode, advancing that punching press cuts, adding the certain thickness barrier film between the both positive and negative polarity by reeling or the mode such as lamination is made battery core.Because the restriction of existing technique; between pole piece and barrier film, always there be particle or the dust that to process fully; when battery had certain carrying capacity, under certain extraneous sublimity impact, these particles or dust just became " assailant " who causes the battery short circuit blast.Just had such risk since being born from lithium cell, blast, on fire or personnel appear in the newspapers when injuring end, net matchmaker etc. but never have good preventive always.
Summary of the invention
The objective of the invention is to propose a kind of lithium ion battery safety device and method, on fire with prevention battery battery explosion in high temperature ageing and long-distance transport.
Lithium ion battery safety device of the present invention comprises the container that a dielectric plastic material is made, and is loaded with explosion-proof fire-extinguishing liquid in the described container.
Further, described liquid explosion-proof fire-extinguishing liquid is the mixed solution of the fine multiple copolymer LA132 of propylene or the fine multiple copolymer LA133 of propylene and water, and wherein the fine multiple copolymer LA132 of propylene or the fine multiple copolymer LA133 of propylene account for 20~30% of mixed solution weight.
Further, described dielectric plastic material is a kind of among PPS, PBT, the PET.Wherein PPS is polyphenylene sulfide, is a kind of novel high-performance thermoplastic base resin, has that mechanical strength is high, high temperature resistant, an advantage such as chemical proofing, difficult combustion, Heat stability is good, electrical property are good; PBT is polybutylene terephthalate, has high-fire resistance, toughness, fatigue durability, electrical insulating property; PET is polyethylene terephthalate, has good physical and mechanical properties and electrical insulating property in wider range of temperatures.The container that adopts above-mentioned dielectric plastic material to make can keep stronger mechanical strength and bursting pressure under higher temperature, and when battery explosion partial fracture, thereby the purpose that realizes transporting safely and put out a fire during battery explosion.
Further, described container is positioned on the frame shape skeleton or the bottom of container is provided with a frame shape skeleton, and described skeleton is made by tetrafluoroethylene-perfluorinated alkoxy vinyl ether copolymer.By the support of skeleton, can make between the end face of the bottom surface of container and lithium ion battery and form certain interval, avoid the battery mineralization pressure.
The present invention proposes the lithium ion battery safety protecting method of using above-mentioned lithium ion battery safety device, its key be when high temperature ageing and long-distance transport the lithium ion battery safety device is positioned over lithium ion battery above.When battery explosion, container breaks like this, and the explosion-proof fire-extinguishing liquid in the container is directly injected into the battery of blast, blocking-up burning and further blast, thus reach protection effect.
Further, the distance between the bottom surface of described lithium ion battery safety device and the end face of lithium ion battery is 2~5mm, to avoid the battery mineralization pressure.
Further, be to guarantee protection effect, the volume of the explosion-proof fire-extinguishing liquid in the described lithium ion battery safety device be 3~5 times of lithium ion battery volume of its below placement.
Lithium ion battery safety device of the present invention is simple in structure, cost is low, and its means of defence is safe and effective, and is workable.
Description of drawings
Fig. 1 is the structural representation of lithium ion battery safety device of the present invention.
The specific embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, the lithium ion battery safety device of the present embodiment comprises the container 1 that a polyphenyl thioether material (PPS) is made, be loaded with explosion-proof fire-extinguishing liquid in the container 1, this liquid explosion-proof fire-extinguishing liquid is the mixed solution of the fine multiple copolymer LA132 of propylene and water, and wherein the fine multiple copolymer LA132 of propylene accounts for 25% of mixed solution weight.Container 1 is positioned on the frame shape skeleton 2, and skeleton 2 is made by tetrafluoroethylene-perfluorinated alkoxy vinyl ether copolymer.By the support of skeleton 2, can make between the end face of the bottom surface of container 1 and lithium ion battery 3 and form certain interval, avoid lithium ion battery 3 mineralization pressures.
The lithium ion battery safety protecting method of using above-mentioned lithium ion battery safety device is as follows:
The container 1 that when high temperature ageing and long-distance transport, will be loaded with explosion-proof fire-extinguishing liquid be positioned over lithium ion battery 3 above.When lithium ion battery 3 explosion times, container 1 breaks like this, and the explosion-proof fire-extinguishing liquid in the container 1 is directly injected into battery 3 places of blast, blocking-up burning and further blast, thus reach protection effect.
Distance between the end face of the bottom surface of container 1 and lithium ion battery 3 is 5mm, to avoid lithium ion battery 3 mineralization pressures.
Be to guarantee that protection effect, the volume of the explosion-proof fire-extinguishing liquid of container 1 be 5 times of lithium ion battery 3 volumes of its below placement.
Above-described embodiment has carried out exemplary description to the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted design of the present invention and technical scheme to carry out; or directly use and other occasions without improving, all within protection scope of the present invention.

Claims (7)

1. lithium ion battery safety device is characterized in that the container that comprises that a dielectric plastic material is made being loaded with explosion-proof fire-extinguishing liquid in the described container.
2. lithium ion battery safety device according to claim 1, it is characterized in that described liquid explosion-proof fire-extinguishing liquid is the mixed solution of the fine multiple copolymer LA132 of propylene or the fine multiple copolymer LA133 of propylene and water, wherein the fine multiple copolymer LA132 of propylene or the fine multiple copolymer LA133 of propylene account for 20~30% of mixed solution weight.
3. lithium ion battery safety device according to claim 1 is characterized in that described dielectric plastic material is a kind of among PPS, PBT, the PET.
4. according to claim 1 and 2 or 3 described lithium ion battery safety devices, it is characterized in that described container is positioned on the frame shape skeleton or the bottom of container is provided with a frame shape skeleton, described skeleton is made by tetrafluoroethylene-perfluorinated alkoxy vinyl ether copolymer.
5. an application rights requires the lithium ion battery safety protecting method of 1~4 described lithium ion battery safety device, it is characterized in that when high temperature ageing and long-distance transport the lithium ion battery safety device is positioned over lithium ion battery above.
6. lithium ion battery safety protecting method according to claim 5 is characterized in that the distance between the end face of the bottom surface of described lithium ion battery safety device and lithium ion battery is 2~5mm.
7. 3~5 times of the lithium ion battery volume that lithium ion battery safety protecting method according to claim 5, the volume that it is characterized in that the explosion-proof fire-extinguishing liquid in the described lithium ion battery safety device are placed for its below.
CN201210308127.0A 2012-08-28 2012-08-28 Safety protection device and method for lithium ion battery Active CN102849364B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201210308127.0A CN102849364B (en) 2012-08-28 2012-08-28 Safety protection device and method for lithium ion battery

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CN102849364B CN102849364B (en) 2015-04-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108502329A (en) * 2018-06-04 2018-09-07 安徽艾伊德动力科技有限公司 A kind of waste and old power battery transport box

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084506A (en) * 1961-04-06 1963-04-09 Floyd J F Rabardy Fire extinguisher for a rocket motor
CN1557516A (en) * 2004-01-14 2004-12-29 浙江大学 High water absorption resin water suction gel fire extinguisher and its application
CN2793676Y (en) * 2005-06-23 2006-07-05 赵子刚 Safety self destructing device of firework products made from medicine
CN1800770A (en) * 2006-01-15 2006-07-12 赵子刚 Storage device with self-destroying and fire self-extinguishing device for semi-finished product of firework and firecracker
CN101682186A (en) * 2008-03-11 2010-03-24 松下电器产业株式会社 Power apparatus and electronic apparatus using the same
CN102152906A (en) * 2010-08-30 2011-08-17 谭湘 Firecracker storage cabinet
CN202096627U (en) * 2011-05-10 2012-01-04 珠海市讯达科技有限公司 High-temperature lithium ion battery holding and extinguishing device
DE102010034826A1 (en) * 2010-08-19 2012-02-23 Li-Tec Battery Gmbh Electrochemical energy storage with a plurality of electrochemical cells

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084506A (en) * 1961-04-06 1963-04-09 Floyd J F Rabardy Fire extinguisher for a rocket motor
CN1557516A (en) * 2004-01-14 2004-12-29 浙江大学 High water absorption resin water suction gel fire extinguisher and its application
CN2793676Y (en) * 2005-06-23 2006-07-05 赵子刚 Safety self destructing device of firework products made from medicine
CN1800770A (en) * 2006-01-15 2006-07-12 赵子刚 Storage device with self-destroying and fire self-extinguishing device for semi-finished product of firework and firecracker
CN101682186A (en) * 2008-03-11 2010-03-24 松下电器产业株式会社 Power apparatus and electronic apparatus using the same
DE102010034826A1 (en) * 2010-08-19 2012-02-23 Li-Tec Battery Gmbh Electrochemical energy storage with a plurality of electrochemical cells
CN102152906A (en) * 2010-08-30 2011-08-17 谭湘 Firecracker storage cabinet
CN202096627U (en) * 2011-05-10 2012-01-04 珠海市讯达科技有限公司 High-temperature lithium ion battery holding and extinguishing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108502329A (en) * 2018-06-04 2018-09-07 安徽艾伊德动力科技有限公司 A kind of waste and old power battery transport box

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Owner name: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY CO., LTD.

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Patentee before: Saic Chery Automobile Co., Ltd.

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Address after: 241000 No. 226 Jin Hua Nan Road, Yijiang hi tech Industrial Development Zone, Anhui, Wuhu

Patentee after: Chery New Energy Automobile Co.,Ltd.

Address before: 241000 No. 226 Hua Jin South Road, Yijiang District, Anhui, Wuhu

Patentee before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd.

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