CN109148941B - 一种高安全锂离子电池及针刺方法 - Google Patents

一种高安全锂离子电池及针刺方法 Download PDF

Info

Publication number
CN109148941B
CN109148941B CN201810993474.9A CN201810993474A CN109148941B CN 109148941 B CN109148941 B CN 109148941B CN 201810993474 A CN201810993474 A CN 201810993474A CN 109148941 B CN109148941 B CN 109148941B
Authority
CN
China
Prior art keywords
polar plate
battery
side polar
needling
outer side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810993474.9A
Other languages
English (en)
Other versions
CN109148941A (zh
Inventor
刘艺
乔志鹏
葛科
朱冠华
赵琪
王云鹏
付欣欣
林德斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Higee Energy Co Ltd
Original Assignee
Jiangsu Higee Energy Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Higee Energy Co Ltd filed Critical Jiangsu Higee Energy Co Ltd
Priority to CN201810993474.9A priority Critical patent/CN109148941B/zh
Publication of CN109148941A publication Critical patent/CN109148941A/zh
Application granted granted Critical
Publication of CN109148941B publication Critical patent/CN109148941B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/102Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/572Means for preventing undesired use or discharge
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Secondary Cells (AREA)
  • Primary Cells (AREA)

Abstract

本发明涉及一种高安全锂离子电池,包括电池外壳,所述电池外壳内设有裸电芯,所述裸电芯外包裹有保护壳,所述保护壳包括内侧极板和外侧极板,所述内侧极板和外侧极板之间均布有平板电容器,所述内侧极板与裸电芯紧密接触,所述外侧极板与电池外壳接触,所述内侧极板和外侧极板相互绝缘不导通。本发明在裸电芯外层加装一层保护壳,该保护壳可以在电池被针刺后,快速吸收大量电流,减少电池发热量,降低电池温度,避免了有机电解液等可燃物的燃烧,保证电池不起火、不爆炸。

Description

一种高安全锂离子电池及针刺方法
技术领域
本发明涉及锂离子电池技术领域,具体涉及一种高安全锂离子电池及针刺方法。
背景技术
目前电池体系主要分为三元和铁锂,随着能量密度的要求的提高,三元逐渐成为主流,高镍材料811应用越来越多,但是三元材料本身热稳定性差,受热分解释放氧气,表面温度可达600℃以上,易燃烧,能量密度越高,安全性越差,三元电池很难通过针刺测试,目前电解液为可燃的有机溶剂,进一步降低了安全系数。
为了提高三元体系电池安全性能,保证电池在受到针刺等外力破坏时不起火、不爆炸,目前主要通过材料改性和阻燃电解液来提高三元电池安全性能,提高材料结构高温稳定性、降低电解液可燃性,保证电池在针刺时不起火、不爆炸,提高电池针刺安全性能。但是采用材料改性,主要采用掺杂和包覆,这会影响材料本身克容量发挥、锂离子扩散系数,进而影响电池性能;采用阻燃电解液会降低电解液电导率,影响电池倍率,采用上述方法会带来电池性能的下降。
发明内容
本发明的目的在于克服上述不足,提供了一种高安全锂离子电池及针刺方法,在电芯外层加装一层保护壳,在电池针刺后,可以快速释放电流,吸收热量,大幅减少产生的热量,保证电池不起火、不爆炸,通过安全测试。
本发明的目的是这样实现的:
一种高安全锂离子电池,包括电池外壳,所述电池外壳内设有裸电芯,所述裸电芯外包裹有保护壳,所述保护壳包括内侧极板和外侧极板,所述内侧极板和外侧极板之间均布有平板电容器,所述内侧极板与裸电芯紧密接触,所述外侧极板与电池外壳接触,所述内侧极板和外侧极板相互绝缘不导通。
优选的,所述平板电容器不带电,所述平板电容器的两端分别与内侧极板、外侧极板导通。
优选的,所述内侧极板和外侧极板均为导电金属板。
一种高安全锂离子电池的针刺方法,采用上述电池,包括以下步骤:
电池充满电后将金属针刺物依次刺穿保护壳的外侧极板和内侧极板,通过金属针刺物将内、外侧极板导通;然后再将金属针刺物刺穿电池,电池内短路,产生的大量电流通过金属针刺物传输到平板电容器,被平板电容器快速吸收。
本发明的有益效果是:
本发明在裸电芯外层加装一层保护壳,该保护壳可以在电池被针刺后,快速吸收大量电流,减少电池发热量,降低电池温度,避免了有机电解液等可燃物的燃烧,保证电池不起火、不爆炸。
附图说明
图1为本发明的结构示意图。
其中:裸电芯1;内侧极板2;外侧极板3;平板电容器4。
实施方式
参见图1,本发明涉及一种高安全锂离子电池,包括电池外壳,所述电池外壳内设有裸电芯1,所述裸电芯1外包裹有保护壳,所述保护壳包括内侧极板2和外侧极板3,所述内侧极板2和外侧极板3之间均布有平板电容器4,所述内侧极板2与裸电芯1紧密接触,所述外侧极板3与电池外壳接触,保证套有保护壳的裸电芯正常入壳,然后烘烤、注液、化成分容完成制作电池,所述内侧极板2和外侧极板3相互绝缘不导通,所述外侧极板3与电池外壳绝缘。
所述平板电容器4不带电,所述平板电容器4的两端分别与内侧极板2、外侧极板3导通。
所述内侧极板2和外侧极板3均为导电金属板。
一种高安全锂离子电池的针刺方法,采用上述电池,包括以下步骤:
电池充满电后将金属针刺物依次刺穿保护壳的外侧极板和内侧极板,通过金属针刺物将内、外侧极板导通;然后再将金属针刺物刺穿电池,电池内短路,产生的大量电流通过金属针刺物传输到平板电容器,被平板电容器快速吸收。
实施例1:对三元2714891-45Ah电池进行包裹保护壳,保护壳的内侧极板和外侧极板均采用铜板,满充进行针刺,测量表面温度为210℃,不起火,不爆炸,大大提高了电池针刺的安全性能。
除上述实施例外,本发明还包括有其他实施方式,凡采用等同变换或者等效替换方式形成的技术方案,均应落入本发明权利要求的保护范围之内。

Claims (4)

1.一种高安全锂离子电池,其特征在于:包括电池外壳,所述电池外壳内设有裸电芯(1),所述裸电芯(1)外包裹有保护壳,所述保护壳包括内侧极板(2)和外侧极板(3),所述内侧极板(2)和外侧极板(3)之间均布有平板电容器(4),所述内侧极板(2)与裸电芯(1)紧密接触,所述外侧极板(3)与电池外壳接触,所述内侧极板(2)和外侧极板(3)相互绝缘不导通。
2.根据权利要求1所述的一种高安全锂离子电池,其特征在于:所述平板电容器(4)不带电,所述平板电容器(4)的两端分别与内侧极板(2)、外侧极板(3)导通。
3.根据权利要求1所述的一种高安全锂离子电池,其特征在于:所述内侧极板(2)和外侧极板(3)均为导电金属板。
4.一种高安全锂离子电池的针刺方法,其特征在于:采用权利要求1-3之一所述的电池,包括以下步骤:
电池充满电后将金属针刺物依次刺穿保护壳的外侧极板和内侧极板,通过金属针刺物将内、外侧极板导通;然后再将金属针刺物刺穿电池,电池内短路,产生的大量电流通过金属针刺物传输到平板电容器,被平板电容器快速吸收。
CN201810993474.9A 2018-08-29 2018-08-29 一种高安全锂离子电池及针刺方法 Active CN109148941B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810993474.9A CN109148941B (zh) 2018-08-29 2018-08-29 一种高安全锂离子电池及针刺方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810993474.9A CN109148941B (zh) 2018-08-29 2018-08-29 一种高安全锂离子电池及针刺方法

Publications (2)

Publication Number Publication Date
CN109148941A CN109148941A (zh) 2019-01-04
CN109148941B true CN109148941B (zh) 2023-06-30

Family

ID=64828899

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810993474.9A Active CN109148941B (zh) 2018-08-29 2018-08-29 一种高安全锂离子电池及针刺方法

Country Status (1)

Country Link
CN (1) CN109148941B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI715406B (zh) 2020-01-06 2021-01-01 財團法人工業技術研究院 電池安全裝置

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10275612A (ja) * 1996-07-09 1998-10-13 Matsushita Electric Ind Co Ltd 二次電池及び二次電池用組立封口板
JP2004071438A (ja) * 2002-08-08 2004-03-04 Maxell Hokuriku Seiki Kk 非水二次電池
JP2009048970A (ja) * 2007-08-23 2009-03-05 Toyota Motor Corp 密閉型電池製造方法
CN101803069A (zh) * 2007-09-21 2010-08-11 永备电池有限公司 改善内部接触的电化学电池
CN102610864A (zh) * 2012-03-28 2012-07-25 佛山市南庄广昌电器塑料有限公司 一种延长铅酸电池使用寿命的方法
CN202495502U (zh) * 2011-12-12 2012-10-17 东莞新能源科技有限公司 一种硬壳锂离子电池
CN104882627A (zh) * 2015-06-08 2015-09-02 山东恒宇新能源有限公司 一种二次充电电池组装的安全装置
CN105006586A (zh) * 2014-04-17 2015-10-28 乾坤科技股份有限公司 具有高能量密度及功率密度的电池装置
CN105406132A (zh) * 2015-11-30 2016-03-16 李朝 一种高安全性的铝电解电容器型镍钴锰三元材料锂离子电池
WO2016200992A1 (en) * 2015-06-09 2016-12-15 America Lithium Energy Corporation Battery and supercapacitor hybrid
CN206225456U (zh) * 2016-10-25 2017-06-06 湖南立方新能源科技有限责任公司 一种含有短路保护装置的锂离子电池
CN107275637A (zh) * 2017-07-19 2017-10-20 汤恭年 更迭充电式铅酸蓄电池
CN206894296U (zh) * 2017-06-22 2018-01-16 康平楠 一种超级电容移动电源

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10110036B2 (en) * 2016-12-15 2018-10-23 StoreDot Ltd. Supercapacitor-emulating fast-charging batteries and devices
US10063076B2 (en) * 2015-02-20 2018-08-28 Omnitek Partners Llc Energy storage devices and methods for fast charging of energy storage devices at very low temperatures
CN208637527U (zh) * 2018-08-29 2019-03-22 江苏海基新能源股份有限公司 一种高安全锂离子电池

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10275612A (ja) * 1996-07-09 1998-10-13 Matsushita Electric Ind Co Ltd 二次電池及び二次電池用組立封口板
JP2004071438A (ja) * 2002-08-08 2004-03-04 Maxell Hokuriku Seiki Kk 非水二次電池
JP2009048970A (ja) * 2007-08-23 2009-03-05 Toyota Motor Corp 密閉型電池製造方法
CN101803069A (zh) * 2007-09-21 2010-08-11 永备电池有限公司 改善内部接触的电化学电池
CN202495502U (zh) * 2011-12-12 2012-10-17 东莞新能源科技有限公司 一种硬壳锂离子电池
CN102610864A (zh) * 2012-03-28 2012-07-25 佛山市南庄广昌电器塑料有限公司 一种延长铅酸电池使用寿命的方法
CN105006586A (zh) * 2014-04-17 2015-10-28 乾坤科技股份有限公司 具有高能量密度及功率密度的电池装置
CN104882627A (zh) * 2015-06-08 2015-09-02 山东恒宇新能源有限公司 一种二次充电电池组装的安全装置
WO2016200992A1 (en) * 2015-06-09 2016-12-15 America Lithium Energy Corporation Battery and supercapacitor hybrid
CN105406132A (zh) * 2015-11-30 2016-03-16 李朝 一种高安全性的铝电解电容器型镍钴锰三元材料锂离子电池
CN206225456U (zh) * 2016-10-25 2017-06-06 湖南立方新能源科技有限责任公司 一种含有短路保护装置的锂离子电池
CN206894296U (zh) * 2017-06-22 2018-01-16 康平楠 一种超级电容移动电源
CN107275637A (zh) * 2017-07-19 2017-10-20 汤恭年 更迭充电式铅酸蓄电池

Also Published As

Publication number Publication date
CN109148941A (zh) 2019-01-04

Similar Documents

Publication Publication Date Title
CN101707262B (zh) 锂离子电池及其制备方法
CN103715452B (zh) 一种低温磷酸铁锂锂离子动力电池
CN101325269A (zh) 一种锂离子电池组
CN102969473A (zh) 有机/无机复合多孔薄膜及使用此薄膜的电化学储能装置
CN207517798U (zh) 一种全固态薄膜锂电池
CN102208678A (zh) 一种安全型锂离子电池
CN102544578A (zh) 一种能够提高综合性能的锂离子电池
CN202817051U (zh) 大容量锂离子电池
CN105322177A (zh) 一种锂离子电池极片及其制备方法和锂离子电池
CN115863741B (zh) 一种储能装置、储能系统及用电设备
CN203800131U (zh) 卷绕式电芯及电化学装置
KR20210148121A (ko) 인산철 리튬 전지 및 그 제조방법
CN102394279A (zh) 一种充液防爆控温锂离子电池
CN109148941B (zh) 一种高安全锂离子电池及针刺方法
CN201562696U (zh) 一种电池壳体及其电池
CN204088432U (zh) 锂离子电池组
CN202905908U (zh) 一种使用卷绕式电芯的锂离子二次电池
CN101626095A (zh) 一种用于提高锂离子电池安全性的隔膜改性方法
CN205621795U (zh) 一种安全型的化学电池
CN202839867U (zh) 一种卷绕式锂离子二次电池的电芯
CN208637527U (zh) 一种高安全锂离子电池
CN102412414A (zh) 一种能低温下安全充电的动力新型锂离子电池制造方法
CN102324553B (zh) 一种安全锂离子电池
CN114883633A (zh) 一种电芯、电池模组和电池包
CN103178293B (zh) 圆柱形单体400Ah锂离子电池及其制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant