JP6605143B2 - 二次電池及び二次電池の電流遮断方法 - Google Patents
二次電池及び二次電池の電流遮断方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000926 separation method Methods 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
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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
- H01M50/531—Electrode connections inside a battery casing
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
-
- 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
-
- 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
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
-
- 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
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/101—Bimetal
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
本出願は、2016年6月22日付韓国特許出願第10-2016-0077867号に基づく優先権の利益を主張し、当該韓国特許出願の文献に開示された全ての内容は本明細書の一部として含まれる。
前記負極タブの製造に用いられた材料は、ニッケル-クラッド(Ni-Clad)であってよい。
前記変形温度は、摂氏75度以上85度以下であってよい。
前記負極タブの材料は、ニッケル-クラッド(Ni-Clad)であってよい。
前記変形温度は、摂氏75度以上85度以下であってよい。
図2は、本発明の一実施形態に係る平常時の二次電池の構造を示した断面図であり、図3は、本発明の一実施形態に係る非常時の二次電池の構造を示した断面図である。
バイメタル(bimetal)は、異なる種類の金属を貼り付けて作製した一つの構成である。バイメタルは、接頭辞である「bi」の意味上、本来互いに異なる「二種類」の金属を貼り付けて作製されたものを意味するのであるが、本明細書で用いられたバイメタルは、二種類だけでなく、三種類以上の金属を貼り付けて作製したものも含むものとして解釈され得る。
二次電池の電流遮断方法
図5は、本発明の一実施形態に係る二次電池の電流遮断方法を説明したフローチャートである。
Claims (12)
- 電極組立体;
前記電極組立体から延長して形成される電極タブ;
前記電極組立体を収容して上部が開放されている缶部材;
前記缶部材の上部に結合され、前記缶部材の上部を塞ぐキャップアセンブリー;及び、
変形温度以下で前記電極タブ及び前記キャップアセンブリーと接触するバイメタル;を含み、
前記キャップアセンブリーは、
最外側部に備えられるキャッププレート;及び、前記キャッププレートと前記電極組立体との間に位置し、表面にノッチが形成される安全ベント;を含み、
前記電極タブは、正極タブ;及び負極タブ;を含み、
前記バイメタルは、前記変形温度以上で前記キャップアセンブリーから離隔され、
前記バイメタルは、
前記安全ベントと前記電極組立体との間に備えられ、前記変形温度以下で前記バイメタルの両端部のうち一端部は前記安全ベントと接触し、前記変形温度以上で前記バイメタルの前記一端部は前記安全ベントと離隔される二次電池。 - 前記負極タブの製造に用いられた材料の電気抵抗は、ニッケル(Ni)の電気抵抗より小さい請求項1に記載の二次電池。
- 前記負極タブの製造に用いられた材料は、ニッケル-クラッド(Ni-Clad)である請求項2に記載の二次電池。
- 前記バイメタルは、
前記バイメタルの上部を形成する上部バイメタル;及び
前記バイメタルの下部を形成する下部バイメタル;を含み、
前記下部バイメタルの熱膨張係数は、前記上部バイメタルの熱膨張係数より小さい請求項1に記載の二次電池。 - 前記バイメタルは、形状記憶合金である請求項1に記載の二次電池。
- 前記変形温度は、摂氏75度以上85度以下である請求項1に記載の二次電池。
- 二次電池内部の電極が短絡される短絡ステップ;
前記二次電池のキャップアセンブリー及び前記電極に連結された電極タブに少なくとも一部が接触するバイメタルに、前記短絡ステップで発生した異常電流が流れることにより前記バイメタルの温度が上昇する温度上昇ステップ;及び
前記温度上昇ステップによって前記バイメタルが反ることにより、前記バイメタルの温度が変形温度以上になると、前記バイメタルが前記キャップアセンブリーから離隔され、前記キャップアセンブリーに流れる電流が遮断される遮断ステップ;を含み、
前記二次電池は、
電極組立体;
前記電極組立体を収容する缶部材;及び
前記缶部材の上部に結合されるキャップアセンブリー;を含み、
前記キャップアセンブリーは、
最外側部に備えられるキャッププレート;及び
前記キャッププレートと前記電極組立体との間に備えられ、表面にノッチが形成される安全ベント;を含み、
前記電極組立体から延長して形成される電極タブは、正極タブ;及び負極タブを含み、
前記温度上昇ステップで前記バイメタルの両端部のうち一端部は、前記安全ベントと接触しており、前記正極タブから流れ込む電流によって前記バイメタルの温度が上昇し、
前記遮断ステップで前記バイメタルの前記一端部は、前記安全ベントから離隔され、前記安全ベントに流れる電流が遮断される二次電池の電流遮断方法。 - 前記負極タブの電気抵抗は、ニッケル(Ni)の電気抵抗より小さい請求項7に記載の二次電池の電流遮断方法。
- 前記負極タブの材料は、ニッケル-クラッド(Ni-Clad)である請求項8に記載の二次電池の電流遮断方法。
- 前記バイメタルは、
前記バイメタルの上部を形成する上部バイメタル;及び
前記バイメタルの下部を形成する下部バイメタル;を含み、
前記下部バイメタルの熱膨張係数は、前記上部バイメタルの熱膨張係数より小さい請求項7に記載の二次電池の電流遮断方法。 - 前記バイメタルは、形状記憶合金である請求項7に記載の二次電池の電流遮断方法。
- 前記変形温度は、摂氏75度以上85度以下である請求項7に記載の二次電池の電流遮断方法。
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Application Number | Priority Date | Filing Date | Title |
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KR1020160077867A KR102093386B1 (ko) | 2016-06-22 | 2016-06-22 | 이차 전지 및 이차 전지의 전류 차단 방법 |
KR10-2016-0077867 | 2016-06-22 | ||
PCT/KR2017/005970 WO2017222215A1 (ko) | 2016-06-22 | 2017-06-08 | 이차 전지 및 이차 전지의 전류 차단 방법 |
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JP2019500723A JP2019500723A (ja) | 2019-01-10 |
JP6605143B2 true JP6605143B2 (ja) | 2019-11-13 |
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US (1) | US11139532B2 (ja) |
EP (1) | EP3333939A1 (ja) |
JP (1) | JP6605143B2 (ja) |
KR (1) | KR102093386B1 (ja) |
CN (1) | CN108028349B (ja) |
WO (1) | WO2017222215A1 (ja) |
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KR102263435B1 (ko) * | 2017-09-13 | 2021-06-11 | 주식회사 엘지에너지솔루션 | 비딩부가 생략된 원통형 전지셀 |
CN110120557B (zh) * | 2018-02-05 | 2021-01-15 | 宁德新能源科技有限公司 | 保护装置及电池 |
KR102443898B1 (ko) * | 2018-11-12 | 2022-09-15 | 주식회사 엘지에너지솔루션 | 과충전 방지가 가능한 구조를 갖는 배터리 팩 충전 시스템 및 이를 포함하는 자동차 |
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 |
KR20220018735A (ko) * | 2020-08-07 | 2022-02-15 | 주식회사 엘지에너지솔루션 | 바이메탈을 이용한 전류차단장치를 가진 배터리 팩 및 그 작동 방법 |
CN114865236B (zh) * | 2021-01-20 | 2024-04-12 | 东莞新能安科技有限公司 | 电芯及电池 |
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JPH09106804A (ja) | 1995-10-09 | 1997-04-22 | Wako Denshi Kk | 電池の安全装置 |
KR970024353U (ko) * | 1995-11-08 | 1997-06-20 | 벤틸레이티드 디스크 브레이크 | |
US5750277A (en) * | 1996-04-10 | 1998-05-12 | Texas Instruments Incorporated | Current interrupter for electrochemical cells |
US5879832A (en) | 1996-10-02 | 1999-03-09 | Duracell Inc. | Current interrupter for electrochemical cells |
US6342826B1 (en) | 1999-08-11 | 2002-01-29 | Therm-O-Disc, Incorporated | Pressure and temperature responsive switch assembly |
KR100342052B1 (ko) | 1999-10-27 | 2002-06-27 | 김순택 | 밀폐전지 |
JP2004235044A (ja) | 2003-01-31 | 2004-08-19 | Yuasa Corp | 密閉式蓄電池とその充電器 |
EP1598893A1 (en) * | 2003-01-31 | 2005-11-23 | Yuasa Corporation | Sealed alkaline storage battery, electrode structure thereof, charging method and charger for sealed alkaline storage battery |
CN100487969C (zh) * | 2003-01-31 | 2009-05-13 | 株式会社汤浅开发 | 密封碱性蓄电池、其电极结构体和充电方法及密封碱性蓄电池用充电器 |
JP2004273139A (ja) * | 2003-03-05 | 2004-09-30 | Canon Inc | リチウム二次電池 |
KR100614377B1 (ko) | 2004-11-15 | 2006-08-21 | 삼성에스디아이 주식회사 | 리튬 이차전지 |
KR100778977B1 (ko) * | 2006-01-18 | 2007-11-22 | 삼성에스디아이 주식회사 | 원통형 리튬 이차전지 |
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CN102473890B (zh) | 2010-03-08 | 2014-05-28 | 日立麦克赛尔株式会社 | 锂离子二次电池 |
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KR101772266B1 (ko) | 2014-09-19 | 2017-08-30 | 신흥에스이씨주식회사 | 우수한 전기차단성을 구비한 이차전지용 캡조립체 및 그 이차전지 |
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- 2017-06-08 CN CN201780003183.4A patent/CN108028349B/zh active Active
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US11139532B2 (en) | 2021-10-05 |
EP3333939A4 (en) | 2018-06-13 |
CN108028349B (zh) | 2021-10-08 |
KR102093386B1 (ko) | 2020-03-25 |
WO2017222215A1 (ko) | 2017-12-28 |
EP3333939A1 (en) | 2018-06-13 |
US20200144574A1 (en) | 2020-05-07 |
CN108028349A (zh) | 2018-05-11 |
KR20180000115A (ko) | 2018-01-02 |
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