CN202905820U - 一种采用安全保护支架的锂离子电池 - Google Patents
一种采用安全保护支架的锂离子电池 Download PDFInfo
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000004411 aluminium Substances 0.000 claims description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
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- 238000001125 extrusion Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
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- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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- 208000014674 injury Diseases 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/579—Devices or arrangements for the interruption of current in response to shock
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/545—Terminals formed by the casing of the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
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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
本实用新型公开了一种采用安全保护支架的锂离子电池,包括电极组件、用于容纳电极组件的金属铝壳体电极组件包括正极片、负极片和隔膜,正极片上设置有正极极耳,负极片上设置有负极极耳,电极组件顶部设置有安全支架,安全支架位于金属铝壳体与电极组件之间,金属铝壳体上设置有与金属铝壳体固定连接的金属铝顶盖。相对于现有技术而言,本实用新型的有益效果在于,本实用新型通过在支架上设置安全保护装置,一方面可以固定电极组件;另一方面可以在穿刺或挤压等滥用情况,通过外短路释放掉事故电芯能量,避免引起更大的安全事故;保证电池的安全性能。
Description
技术领域
本实用新型涉及锂离子电池技术,特别涉及一种采用安全保护支架的锂离子电池。
背景技术
在现有技术中,锂离子电池自开发成功以来,由于其工作高容量、高输出功率、应用温度范围宽、自放电率低、循环寿命长、安全、环保、无污染等独特的优势,近年来在电子设备中得到了越来越广泛的应用,并已经成为移动电话等电子设备的标准配置。
但是近年来锂离子电池在使用不当的情况下如加热、过充、过放、短路、振动、挤压等会出现着火、爆炸乃至导致人员受伤等事件。所以锂离子电池的安全性引起人们的广泛关注。
锂离子动力电池在穿刺或挤压等滥用情况下,电池内部发生短路,导致电池的温度升高,当温度升高到一定程时度,电池发生热失控,就有可能会起火或爆炸,导致安全问题。
实用新型内容
为了克服现有技术的不足,本实用新型的目的在于,提供一种采用安全保护支架的锂离子电池,一方面可以固定电极组件,另一方面可以通过外短路释放掉事故电芯能量,保证电池的安全性能。
为了实现上述目的,本实用新型的技术方案为,一种采用安全保护支架的锂离子电池,包括电极组件、用于容纳电极组件的金属铝壳体电极组件包括正极片、负极片和隔膜,正极片上设置有正极极耳,负极片上设置有负极极耳,电极组件顶部设置有安全支架,安全支架位于金属铝壳体与电极组件之间,金属铝壳体上设置有与金属铝壳体固定连接的金属铝顶盖。通过构造一种安全支架设置在锂离子电池内,一方面可以固定电极组件,另一方面,安全支架与锂离子电池形成外短路,在穿刺或挤压等滥用情况下,释放掉事故电芯能量,保证电池的安全性能。
作为本实用新型的进一步改进,金属铝顶盖上设置有与正极极耳电连接的正极端子、与负极极耳电连接的负极端子、注液孔和防爆阀。通过铜板的极耳与负极端子电连接,使其形成一个外短路,在穿刺或挤压等滥用情况下,释放掉事故电芯能量,保护锂离子电池。
作为本实用新型的进一步改进,安全支架内嵌有一个金属铜板,金属铜板的极耳与负极端子电连接。
作为本实用新型的进一步改进,金属铝壳体与正极端子电连接。
作为本实用新型的进一步改进,安全支架设置为塑料安全支架。安全支架使用塑料注塑成型,保证了内嵌的铜板及电极组件不与其通电,确保了内部的稳定。
作为本实用新型的进一步改进,负极端子的厚度为0.2mm。
作为本实用新型的进一步改进,负极端子延伸到金属铝壳体上,且负极端子有PET贴片覆盖在其上。用PET贴片对负极端子进行覆盖,使其与外部隔绝,从而保护负极端子。
作为本实用新型的进一步改进,PET贴片的厚度为0.1mm。
相对于现有技术而言,本实用新型的有益效果在于,本实用新型通过在支架上设置安全保护装置,一方面可以固定电极组件;另一方面可以在穿刺或挤压等滥用情况,通过外短路释放掉事故电芯能量,避免引起更大的安全事故;保证电池的安全性能。
附图说明
图1为本实用新型的主视图。
图2为本实用新型的右视图。
具体实施方式
为了使本实用新型的目的,技术方案及优点更加清晰明了,结合以下附图,对其进一步详细说明。
参照图1及图2,一种采用安全保护支架的锂离子电池,包括电极组件1、用于容纳电极组件1的金属铝壳体2电极组件1包括正极片、负极片和隔膜,正极片上设置有正极极耳,负极片上设置有负极极耳,电极组件1顶部设置有安全支架3,安全支架3位于金属铝壳体2与电极组件1之间,金属铝壳体2上设置有与金属铝壳体2固定连接的金属铝顶盖4。通过构造一种安全支架设置在锂离子电池内,一方面可以固定电极组件,另一方面,安全支架与锂离子电池形成外短路,在穿刺或挤压等滥用情况下,释放掉事故电芯能量,保证电池的安全性能。
金属铝顶盖4上设置有与正极极耳电连接的正极端子、与负极极耳电连接的负极端子11、注液孔41和防爆阀42。通过铜板的极耳与负极端子电连接,使其形成一个外短路,在穿刺或挤压等滥用情况下,释放掉事故电芯能量,保护锂离子电池。
安全支架3内嵌有一个金属铜板31,金属铜板31的极耳与负极端子11电连接。
金属铝壳体2与正极端子电连接。
安全支架3设置为塑料安全支架。安全支架使用塑料注塑成型,保证了内嵌的铜板及电极组件不与其通电,确保了内部的稳定。
负极端子11的厚度为0.2mm。
负极端子11延伸到金属铝壳体2上,且负极端子11有PET贴片5覆盖在其上。用PET贴片对负极端子进行覆盖,使其与外部隔绝,从而保护负极端子。
PET贴片5的厚度为0.1mm。
本实用新型在电极组件1顶部设置有安全支架3,安全支架3位于金属铝壳体2与电极组件1之间,在电路正常情况下,呈低阻状态,保证电路正常工作;当电路发生短路或电流异常大时,安全支架3内嵌的铜板31与负极端子11电连接形成的外短路,自然使其阻抗增加把电流限制到足够小,起到过电流保护作用,使电池的电流受到控制从而提高电池的安全性和可靠性。
根据上述说明书的揭示,本实用新型所属领域的技术人员还可以对上述实施方式进行适当的变更和修改。因此,本实用新型并不局限于上面揭示和描述的具体实施方式,对本实用新型的一些修改和变更也应当落入本实用新型的权利要求的保护范围内。此外,尽管本说明书中使用了一些特定的术语,但这些术语只是为了方便说明,并不对本实用新型专利成任何限制。
Claims (8)
1.一种采用安全保护支架的锂离子电池,包括电极组件(1)、用于容纳电极组件(1)的金属铝壳体(2)所述电极组件(1)包括正极片、负极片和隔膜,所述正极片上设置有正极极耳,所述负极片上设置有负极极耳,其特征在于,所述电极组件(1)顶部设置有安全支架(3),所述安全支架(3)位于所述金属铝壳体(2)与所述电极组件(1)之间,所述金属铝壳体(2)上设置有与所述金属铝壳体(2)固定连接的金属铝顶盖(4)。
2.根据权利要求1所述的采用安全保护支架的锂离子电池,其特征在于,所述金属铝顶盖(4)上设置有与所述正极极耳电连接的正极端子、与所述负极极耳电连接的负极端子(11)、注液孔(41)和防爆阀(42)。
3.根据权利要求1所述的采用安全保护支架的锂离子电池,其特征在于,所述安全支架(3)内嵌有一个金属铜板(31),所述金属铜板(31)的极耳与所述负极端子(11)电连接。
4.根据权利要求1所述的采用安全保护支架的锂离子电池,其特征在于,所述金属铝壳体(2)与所述正极端子电连接。
5.根据权利要求1所述的采用安全保护支架的锂离子电池,其特征在于,所述安全支架(3)设置为塑料安全支架。
6.根据权利要求1所述的采用安全保护支架的锂离子电池,其特征在于,所述负极端子(11)的厚度为0.2mm。
7.根据权利要求1所述的采用安全保护支架的锂离子电池,其特征在于,所述负极端子(11)延伸到所述金属铝壳体(2)上,且所述负极端子(11)有PET贴片(5)覆盖在其上。
8.根据权利要求1所述的采用安全保护支架的锂离子电池,其特征在于,所述PET贴片(5)的厚度为0.1mm。
Priority Applications (3)
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CN2012205356841U CN202905820U (zh) | 2012-10-19 | 2012-10-19 | 一种采用安全保护支架的锂离子电池 |
JP2013005907U JP3188013U (ja) | 2012-10-19 | 2013-10-15 | 安全プロテクションブラケットを有するリチウムイオン電池 |
US14/055,217 US20140113183A1 (en) | 2012-10-19 | 2013-10-16 | Lithium-ion battery with safety protection bracket |
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CN2012205356841U CN202905820U (zh) | 2012-10-19 | 2012-10-19 | 一种采用安全保护支架的锂离子电池 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108565389A (zh) * | 2018-03-22 | 2018-09-21 | 上海力信能源科技有限责任公司 | 一种极耳保护罩及电池 |
CN109860740A (zh) * | 2019-02-18 | 2019-06-07 | 华为技术有限公司 | 一种缓解电池包热失控蔓延的控制方法、装置及电池包 |
Family Cites Families (6)
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JP4424773B2 (ja) * | 1999-03-19 | 2010-03-03 | 三洋電機株式会社 | 密閉式電池 |
JP4599314B2 (ja) * | 2006-02-22 | 2010-12-15 | 株式会社東芝 | 非水電解質電池、電池パック及び自動車 |
JP5021961B2 (ja) * | 2006-06-16 | 2012-09-12 | Necエナジーデバイス株式会社 | ラミネート電池およびその製造方法 |
KR101097220B1 (ko) * | 2009-10-30 | 2011-12-21 | 에스비리모티브 주식회사 | 이차 전지 |
KR101217071B1 (ko) * | 2010-02-18 | 2012-12-31 | 로베르트 보쉬 게엠베하 | 이차 전지 |
CN103311569A (zh) * | 2012-08-10 | 2013-09-18 | 宁德新能源科技有限公司 | 一种锂离子动力电池 |
-
2012
- 2012-10-19 CN CN2012205356841U patent/CN202905820U/zh not_active Expired - Lifetime
-
2013
- 2013-10-15 JP JP2013005907U patent/JP3188013U/ja not_active Expired - Lifetime
- 2013-10-16 US US14/055,217 patent/US20140113183A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108565389A (zh) * | 2018-03-22 | 2018-09-21 | 上海力信能源科技有限责任公司 | 一种极耳保护罩及电池 |
CN109860740A (zh) * | 2019-02-18 | 2019-06-07 | 华为技术有限公司 | 一种缓解电池包热失控蔓延的控制方法、装置及电池包 |
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Publication number | Publication date |
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JP3188013U (ja) | 2013-12-26 |
US20140113183A1 (en) | 2014-04-24 |
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