CN102324465A - Explosion-proof flame-retardant lithium-ion battery safety box - Google Patents
Explosion-proof flame-retardant lithium-ion battery safety box Download PDFInfo
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- CN102324465A CN102324465A CN201110254167A CN201110254167A CN102324465A CN 102324465 A CN102324465 A CN 102324465A CN 201110254167 A CN201110254167 A CN 201110254167A CN 201110254167 A CN201110254167 A CN 201110254167A CN 102324465 A CN102324465 A CN 102324465A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to an explosion-proof flame-retardant lithium-ion battery safety box comprising a lithium-ion battery pack and a sealed box; the sealed box comprises a box body and a top cover; the top cover and the box body are connected in a seal way; the lithium-ion battery pack is arranged in the box body; a radiating fin, a positive pole conductive terminal and a negative pole conductive terminal are arranged on the top cover; and a gas valve which is used for vacuumizing and is filled with inert gas is arranged on the top cover. The invention provides the explosion-proof flame-retardant lithium-ion battery safety box which can effectively prevent the explosion of single batteries or the battery pack, and greatly improve the safety performance.
Description
Technical field
The present invention relates to a kind of lithium ion battery case.
Background technology
Because the high-energy-density of lithium ion battery and the combustibility that adopts organic electrolyte solution and the active characteristic of lithium, lithium ion battery is compared with the traditional secondary battery, aspect fail safe, has birth defect.Lithium-ion-power cell as the power use; Because battery capacity is big, generally need high power output, so battery heating when work is serious; Potential safety hazard obviously increases; Especially when its in thermal shock, overcharge, cross put with abuse state such as short circuit under, chemistry, electrochemical reaction will take place between components such as the active material of its inside battery and electrolyte, generation great amount of heat and gas; Run up to the blast of catching fire that to a certain degree will cause battery, so lithium-ion-power cell all need be provided with safety valve usually.
At present, the safety valve of general square or cylindrical lithium-ion power battery is arranged on the battery cap usually, adopts the punching press attenuate to form the foil of band indentation, or adopts the sheet metal of prefabricated indentation to be welded in top cover formation safety valve.When inner pressure of battery increased, sheet metal broke at prefabricated indentation place, and inside battery gas prevents battery explosion through the breach discharging.
In addition; Present lithium ion battery safety valve commonly used generally adopts the disposable safe valve, promptly safety valve open once promptly unrenewable, after general battery liquid-filling seals; Battery subsequently change into the charge and discharge cycles process in; Can't the gas that battery produces in the course of the work in time be discharged outside the battery, cause in the battery various imflammable gas cumulative, inner pressure of battery raises.Can find that in experimentation the battery process is tens of, and the interior pressure of battery progressively raises after hundreds of circulations, the highest inner pressure of battery can surpass 1.0MPa, and the amount of gas of inner accumulation is very surprising.
Summary of the invention
In order to overcome the relatively poor deficiency of blast, fail safe that can not effectively prevent battery cell or battery pack of existing existing lithium ion battery, the present invention provide a kind of can effectively prevent the blast of battery cell or battery pack, greatly improving safety can explosion-proof fire-retardant lithium ion battery safety box.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of explosion-proof fire-retardant lithium ion battery safety box; Comprise lithium ion battery group and stuffing box; Said stuffing box comprises casing and top cover, and said top cover is connected with box sealing, and said lithium ion battery group is positioned at said casing; Fin, anodal conducting terminal and negative pole conducting terminal are installed on the said top cover, are installed in order to vacuumize and to charge into the gas valve of inert gas on the said top cover.
Further, small fan is installed in the said casing.
Further again, said fin and gas valve are one.
Further, be provided with the location screens mechanism that supplies the lithium ion battery assembly to close in the said casing.
Said box house setting pressure transducer and temperature sensor; Said pressure sensor all is connected with controller with temperature sensor, and said controller comprises that in order to surpass preset temperature value when temperature be to give a warning and start the warning temperature module of small fan and in order to when pressure is lower than preset pressure value, to open the inert gas control module that gas valve startup inertial gas tank is inflated.
Beneficial effect of the present invention mainly shows:.Through at transducers such as cell safety case set inside pressure, temperature; At battery-pack exterior casing thermal component is set; And the employing controller, can be together in series organizing different cell safety casees more, can control the temperature of battery pack in the battery case and the pressure of inert gas automatically; The heat that in time battery pack is produced is dispersed into the battery pack outside, the reliable and secure work of protection battery pack.If adopt the mode of concentrating heat radiation, then single cell safety case can be provided with the house thermal part, saves manufacturing cost and simplifies the battery case structure.Power battery pack safety box of the present invention for lithium-ion-power cell, especially to applications such as high military, the automobile powers of security requirement, has good safeguard protection effect.
Description of drawings
Fig. 1 is the structural representation of explosion-proof fire-retardant lithium ion battery safety box.
Fig. 2 is the control system sketch map of a plurality of battery pack safety boxs.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
See figures.1.and.2; A kind of lithium ion battery group safety box of firing and explosion prevention is made up of lithium ion battery group that combines 1 and stuffing box, and said stuffing box comprises casing 2 and top cover 7; Said top cover 7 is connected with box sealing 2; Said lithium ion battery group 1 is positioned at said casing 2, and fin 4, anodal conducting terminal 6 and negative pole conducting terminal 3 are installed on the said top cover 7, and the gas valve 5 in order to vacuumize and to charge into inert gas is installed on the said top cover 7.
In the said casing 2 small fan is installed.Said fin 4 is one with gas valve 5.Be provided with the location screens mechanism that supplies the lithium ion battery assembly to close in the said casing 2.
Said casing 2 inner setting pressure transducer and temperature sensors; Said pressure sensor all is connected with controller with temperature sensor, and said controller comprises that in order to surpass preset temperature value when temperature be to give a warning and start the warning temperature module of small fan and in order to when pressure is lower than preset pressure value, to open the inert gas control module that gas valve startup inertial gas tank is inflated.
The stuffing box size of present embodiment is decided according to the pond packet size; And be designed with the location screens mechanism that cooperates with battery pack, in establish the small fan that plays the gas circulation effect, small fan is controlled by control system; If internal temperature of battery surpasses established standards, can start automatically.Casing 2 generally is designed to square, and the top cover that cooperates with casing is designed with anodal conducting terminal 6, negative pole conducting terminal 3 and metal fin 4, and metal fin and sealable gas valve 5 are designed to one.Battery pack 1 is combined through following steps with stuffing box:
(1) assembled battery group 1 is drawn anodal respectively and cathode conductor is welded on the positive and negative terminals of top cover;
(2) top cover 7 and casing 2 are linked together through welding, thermofussion welding, ultrasonic bonding or gluing mode;
(3) air-tightness of test stuffing box;
(4) reach sealing property after, through tracheae 5 gas in the stuffing box is extracted out, form 10
-2The vacuum degree of Pa～1000Pa;
(5) charge into after inert gas (comprising gases such as nitrogen, argon gas, helium or carbon dioxide) is 101.3 ± 20kPa to pressure, basic and ambient pressure balance is tightened the tracheae sealing shroud then, accomplishes the assembling of one group of explosion-proof flame-proof battery group.
Assemble single lithium ion battery safety box earlier, adopt pipeline to connect then between the safety box, through at transducers such as single battery safety box set inside pressure, temperature; And the employing controller, can be together in series organizing different cell safety casees more, the battery pack temperature in system detects certain safety box exceeds standard; Can give the alarm; Automatically the radiating rate of radiator is quickened in control, and the heat that in time battery pack is produced is dispersed into the battery pack outside, the reliable and secure work of protection battery pack.The pressure of inert gas descends or is not enough in system detects safety box, topping up in the automatically starting inertial gas tank, case safety box, the balance of maintenance system internal pressure.
The battery pack of present embodiment; Can adopt various forms of lithium ion batteries; The various cylinders and the square battery that comprise aluminum alloy casing, stainless steel casing, plastic casing and aluminum plastic film flexible package; After being combined into battery pack, put into to vacuumize after the seal case sealing and charge into inert gas, good explosion-proof fire resistance is all arranged.
The seal case material of present embodiment is that fine aluminium, aluminium alloy, magnesium alloy, stainless steel, ordinary carbon steel, various thermoplastics comprise polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyformaldehyde; Merlon; Polyamide, acrylics, other polyolefin and copolymer thereof, polysulfones, polyphenylene oxide, chlorinated polyether etc. and other material that is suitable for.
The top cover of present embodiment is consistent with the material of seal case, and in order to guarantee the size fitness of casing and case lid, casing and case lid are provided with location notch respectively.In order to improve the thermal diffusivity of battery pack, also be designed with the metal derby of heat radiation on the case lid, if adopt thermoplastics, then radiating block is the same with the both positive and negative polarity top cover, adopts the injection mo(u)lding of embedding and injection molding mode.If casing and case lid adopt metal material, then adopt the impact style moulding.
In order to reduce the air in the stuffing box as far as possible, reach higher vacuum degree, the mode that vacuumizes is used oilless vacuum pump at least, and vacuum pump can reach 10
-2The vacuum degree that Pa is above.
Be used for the inert gas of use in the explosion-proof flame-proof battery group casing, comprise gases such as nitrogen, argon gas, helium or carbon dioxide, the purity of gas reaches more than 98%.If, then preferentially use the helium of high thermal conductivity in order to guarantee the heat radiation of battery pack.
Claims (5)
1. explosion-proof fire-retardant lithium ion battery safety box; Comprise lithium ion battery group and stuffing box; Said stuffing box comprises casing and top cover, and said top cover is connected with box sealing, and said lithium ion battery group is positioned at said casing; Fin, anodal conducting terminal and negative pole conducting terminal are installed on the said top cover, are it is characterized in that: install in order to vacuumize and to charge into the gas valve of inert gas on the said top cover.
2. explosion-proof fire-retardant lithium ion battery safety box as claimed in claim 1 is characterized in that: small fan is installed in the said casing.
3. according to claim 1 or claim 2 explosion-proof fire-retardant lithium ion battery safety box, it is characterized in that: said fin and gas valve are one.
4. according to claim 1 or claim 2 explosion-proof fire-retardant lithium ion battery safety box is characterized in that: be provided with the location screens mechanism that supplies the lithium ion battery assembly to close in the said casing.
5. explosion-proof fire-retardant lithium ion battery safety box as claimed in claim 2; It is characterized in that: said box house setting pressure transducer and temperature sensor; Said pressure sensor all is connected with controller with temperature sensor, and said controller comprises that in order to surpass preset temperature value when temperature be to give a warning and start the warning temperature module of small fan and in order to when pressure is lower than preset pressure value, to open the inert gas control module that gas valve startup inertial gas tank is inflated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110254167A CN102324465A (en) | 2011-08-31 | 2011-08-31 | Explosion-proof flame-retardant lithium-ion battery safety box |
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| CN201110254167A CN102324465A (en) | 2011-08-31 | 2011-08-31 | Explosion-proof flame-retardant lithium-ion battery safety box |
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| CN102324465A true CN102324465A (en) | 2012-01-18 |
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| CN201110254167A Pending CN102324465A (en) | 2011-08-31 | 2011-08-31 | Explosion-proof flame-retardant lithium-ion battery safety box |
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Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086780A1 (en) * | 2011-12-16 | 2013-06-20 | 上海奥威科技开发有限公司 | Power supply |
| CN103500860A (en) * | 2013-09-27 | 2014-01-08 | 国家电网公司 | Dual-protection device for lithium ion battery |
| CN103840213A (en) * | 2013-11-21 | 2014-06-04 | 厦门华锂能源有限公司 | High-safety lithium ion battery and manufacturing method thereof |
| CN103972579A (en) * | 2013-01-25 | 2014-08-06 | 低碳动能开发股份有限公司 | Manufacturing method for secondary battery heat energy conduction blocking |
| CN104103786A (en) * | 2014-06-13 | 2014-10-15 | 芜湖特源鑫复合材料科技有限公司 | Dual-purpose explosion protection box for lithium battery |
| CN104241563A (en) * | 2013-06-06 | 2014-12-24 | 微宏动力系统（湖州）有限公司 | Safety leakproof battery pack |
| CN104300099A (en) * | 2014-10-17 | 2015-01-21 | 北京三兴汽车有限公司 | Lithium ion storage battery anti-explosion power supply |
| CN104347831A (en) * | 2013-07-31 | 2015-02-11 | 北京联动天翼科技有限公司 | High-safety-performance lithium ion battery module and manufacturing method thereof |
| CN104528205A (en) * | 2014-12-26 | 2015-04-22 | 中国船舶重工集团公司第七一〇研究所 | Lithium battery pack packaging box |
| CN105161794A (en) * | 2015-08-17 | 2015-12-16 | 汕头市毅和电源科技有限公司 | Multifunctional lithium ion battery |
| CN105470432A (en) * | 2015-02-16 | 2016-04-06 | 万向A一二三系统有限公司 | Puncture-test flame-retardant battery |
| CN105470412A (en) * | 2015-02-16 | 2016-04-06 | 万向A一二三系统有限公司 | Flame retardant and anti-explosion battery |
| CN105914317A (en) * | 2016-06-12 | 2016-08-31 | 长沙巨力电子科技股份有限公司 | High-altitude power supply system |
| CN105987797A (en) * | 2015-03-23 | 2016-10-05 | 保时捷股份公司 | Method for examining the leaktightness of a closed housing of an electrical component |
| CN106099008A (en) * | 2016-08-26 | 2016-11-09 | 浙江杭消消防设备有限公司 | The full immersed type fire-retardant power battery box of heat radiation |
| CN106329018A (en) * | 2016-11-23 | 2017-01-11 | 北京新能源汽车股份有限公司 | Power battery sealing management device and car |
| CN107123833A (en) * | 2016-02-25 | 2017-09-01 | 比亚迪股份有限公司 | Electrokinetic cell and its protection system and electric automobile |
| CN107507937A (en) * | 2017-07-24 | 2017-12-22 | 山东高佳新能源有限公司 | A kind of heat-insulating, fire-preventing anti-explosion battery group |
| CN107565078A (en) * | 2017-09-01 | 2018-01-09 | 王武生 | A kind of method for preventing lithium ion battery combustion explosion |
| CN107819167A (en) * | 2016-09-14 | 2018-03-20 | 罗伯特·博世有限公司 | Battery pack and its active thermal management system |
| CN107871836A (en) * | 2017-12-21 | 2018-04-03 | 张家港清研再制造产业研究院有限公司 | A kind of lithium-ion battery systems safety protection device and method |
| CN107946679A (en) * | 2017-11-28 | 2018-04-20 | 广东省肇庆市质量计量监督检测所 | A kind of lithium ion battery and battery pack |
| CN107968173A (en) * | 2017-11-26 | 2018-04-27 | 合肥国盛电池科技有限公司 | A kind of lithium cell protecting device |
| CN108390111A (en) * | 2018-01-09 | 2018-08-10 | 上海忠舍工业安防设备有限公司 | Lithium ion battery incipient fire early warning system |
| CN109128709A (en) * | 2018-09-30 | 2019-01-04 | 福建坤孚股份有限公司 | A kind of magnesium alloy battery box edge forming method and structure |
| CN109585730A (en) * | 2018-11-08 | 2019-04-05 | 同济大学 | It is a kind of to fill protection gas battery pack suitable for new-energy automobile |
| CN109616717A (en) * | 2018-11-08 | 2019-04-12 | 同济大学 | A kind of vacuum battery pack system suitable for electric car |
| CN110268550A (en) * | 2017-03-21 | 2019-09-20 | 奥柏里斯特科技有限公司 | Battery system |
| CN112670642A (en) * | 2021-01-28 | 2021-04-16 | 唐山鹏安科技有限公司 | Inert gas protection method for explosion-proof lithium battery power supply during combustion |
| CN112751132A (en) * | 2021-01-22 | 2021-05-04 | 上海兰钧新能源科技有限公司 | Novel battery box structure, battery pack and electric vehicle |
| CN114256543A (en) * | 2020-09-19 | 2022-03-29 | 华为数字能源技术有限公司 | Energy storage device and control method thereof |
| CN114914519A (en) * | 2022-05-26 | 2022-08-16 | 柳州五菱新能源汽车有限公司 | Preparation method of lithium ion battery for new energy vehicle |
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Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013086780A1 (en) * | 2011-12-16 | 2013-06-20 | 上海奥威科技开发有限公司 | Power supply |
| CN103972579A (en) * | 2013-01-25 | 2014-08-06 | 低碳动能开发股份有限公司 | Manufacturing method for secondary battery heat energy conduction blocking |
| CN104241563A (en) * | 2013-06-06 | 2014-12-24 | 微宏动力系统（湖州）有限公司 | Safety leakproof battery pack |
| CN104347831A (en) * | 2013-07-31 | 2015-02-11 | 北京联动天翼科技有限公司 | High-safety-performance lithium ion battery module and manufacturing method thereof |
| CN103500860A (en) * | 2013-09-27 | 2014-01-08 | 国家电网公司 | Dual-protection device for lithium ion battery |
| CN103840213A (en) * | 2013-11-21 | 2014-06-04 | 厦门华锂能源有限公司 | High-safety lithium ion battery and manufacturing method thereof |
| CN104103786A (en) * | 2014-06-13 | 2014-10-15 | 芜湖特源鑫复合材料科技有限公司 | Dual-purpose explosion protection box for lithium battery |
| CN104300099A (en) * | 2014-10-17 | 2015-01-21 | 北京三兴汽车有限公司 | Lithium ion storage battery anti-explosion power supply |
| CN104528205A (en) * | 2014-12-26 | 2015-04-22 | 中国船舶重工集团公司第七一〇研究所 | Lithium battery pack packaging box |
| CN105470432A (en) * | 2015-02-16 | 2016-04-06 | 万向A一二三系统有限公司 | Puncture-test flame-retardant battery |
| CN105470412A (en) * | 2015-02-16 | 2016-04-06 | 万向A一二三系统有限公司 | Flame retardant and anti-explosion battery |
| CN105470412B (en) * | 2015-02-16 | 2017-12-12 | 万向一二三股份公司 | Flame-proof explosion-proof battery |
| CN105987797A (en) * | 2015-03-23 | 2016-10-05 | 保时捷股份公司 | Method for examining the leaktightness of a closed housing of an electrical component |
| CN105161794A (en) * | 2015-08-17 | 2015-12-16 | 汕头市毅和电源科技有限公司 | Multifunctional lithium ion battery |
| CN107123833A (en) * | 2016-02-25 | 2017-09-01 | 比亚迪股份有限公司 | Electrokinetic cell and its protection system and electric automobile |
| CN105914317A (en) * | 2016-06-12 | 2016-08-31 | 长沙巨力电子科技股份有限公司 | High-altitude power supply system |
| CN106099008A (en) * | 2016-08-26 | 2016-11-09 | 浙江杭消消防设备有限公司 | The full immersed type fire-retardant power battery box of heat radiation |
| CN106099008B (en) * | 2016-08-26 | 2018-12-18 | 浙江杭消消防设备有限公司 | The fire-retardant power battery box of full immersed type heat dissipation |
| CN107819167A (en) * | 2016-09-14 | 2018-03-20 | 罗伯特·博世有限公司 | Battery pack and its active thermal management system |
| CN107819167B (en) * | 2016-09-14 | 2022-11-04 | 罗伯特·博世有限公司 | Battery pack and active thermal management system thereof |
| CN106329018A (en) * | 2016-11-23 | 2017-01-11 | 北京新能源汽车股份有限公司 | Power battery sealing management device and car |
| CN106329018B (en) * | 2016-11-23 | 2019-03-15 | 北京新能源汽车股份有限公司 | A kind of power battery sealing managing device and automobile |
| US11697504B2 (en) | 2017-03-21 | 2023-07-11 | Obrist Technologies Gmbh | Battery system |
| CN110268550A (en) * | 2017-03-21 | 2019-09-20 | 奥柏里斯特科技有限公司 | Battery system |
| CN107507937A (en) * | 2017-07-24 | 2017-12-22 | 山东高佳新能源有限公司 | A kind of heat-insulating, fire-preventing anti-explosion battery group |
| CN107507937B (en) * | 2017-07-24 | 2023-04-07 | 东营悦泰技术服务有限公司 | Thermal-insulated fire prevention explosion-proof group battery |
| CN107565078A (en) * | 2017-09-01 | 2018-01-09 | 王武生 | A kind of method for preventing lithium ion battery combustion explosion |
| CN107968173A (en) * | 2017-11-26 | 2018-04-27 | 合肥国盛电池科技有限公司 | A kind of lithium cell protecting device |
| CN107946679A (en) * | 2017-11-28 | 2018-04-20 | 广东省肇庆市质量计量监督检测所 | A kind of lithium ion battery and battery pack |
| CN107946679B (en) * | 2017-11-28 | 2020-06-02 | 广东省肇庆市质量计量监督检测所 | Lithium ion battery and battery pack |
| CN107871836A (en) * | 2017-12-21 | 2018-04-03 | 张家港清研再制造产业研究院有限公司 | A kind of lithium-ion battery systems safety protection device and method |
| CN108390111A (en) * | 2018-01-09 | 2018-08-10 | 上海忠舍工业安防设备有限公司 | Lithium ion battery incipient fire early warning system |
| CN109128709A (en) * | 2018-09-30 | 2019-01-04 | 福建坤孚股份有限公司 | A kind of magnesium alloy battery box edge forming method and structure |
| CN109616717A (en) * | 2018-11-08 | 2019-04-12 | 同济大学 | A kind of vacuum battery pack system suitable for electric car |
| CN109585730A (en) * | 2018-11-08 | 2019-04-05 | 同济大学 | It is a kind of to fill protection gas battery pack suitable for new-energy automobile |
| CN114256543A (en) * | 2020-09-19 | 2022-03-29 | 华为数字能源技术有限公司 | Energy storage device and control method thereof |
| CN112751132A (en) * | 2021-01-22 | 2021-05-04 | 上海兰钧新能源科技有限公司 | Novel battery box structure, battery pack and electric vehicle |
| CN112670642B (en) * | 2021-01-28 | 2022-07-26 | 唐山鹏安科技有限公司 | Inert gas protection method for explosion-proof lithium battery power supply during combustion |
| CN112670642A (en) * | 2021-01-28 | 2021-04-16 | 唐山鹏安科技有限公司 | Inert gas protection method for explosion-proof lithium battery power supply during combustion |
| CN114914519A (en) * | 2022-05-26 | 2022-08-16 | 柳州五菱新能源汽车有限公司 | Preparation method of lithium ion battery for new energy vehicle |
| CN114914519B (en) * | 2022-05-26 | 2023-12-29 | 柳州五菱新能源汽车有限公司 | Preparation method of lithium ion battery for new energy vehicle |
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Application publication date: 20120118 |