JP6033876B2 - 二次電池用ガスケット及び二次電池 - Google Patents
二次電池用ガスケット及び二次電池 Download PDFInfo
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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
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/197—Sealing members characterised by the material having a layered structure
-
- 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/198—Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
-
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
図1は、実施形態1に係る二次電池の概略構造を示す断面図である。本実施形態では、二次電池として、リチウムイオン二次電池を用いた場合を具体例に挙げて説明する。本実施形態に係る二次電池100は、電極群4と、電池ケース5と、封口体10と、二次電池用ガスケット17と、を備える。
実施形態2に係る二次電池用ガスケットは、第3絶縁層を備えた点を除き、実施形態1に係る二次電池用ガスケットの構成と共通する。また、二次電池用ガスケット以外の二次電池の構成は、実施形態1に係る二次電池と同一である。以下、実施形態2に係る二次電池用ガスケット及び二次電池について、実施形態1と異なる構成を中心に説明する。図4は、実施形態2に係る二次電池用ガスケットの概略構造を示す断面図である。
実施形態2には、次のような変形例を挙げることができる。図5は、変形例に係る二次電池用ガスケットの概略構造を示す断面図である。本変形例に係る二次電池用ガスケット17は、第1絶縁層17aと第3絶縁層17cとが一体成形された構造を有する。すなわち、第1絶縁層17aの端部と第3絶縁層17cの端部とが、第2絶縁層17bの端面上で連結されている。
電池ケースと、当該電池ケースの開口部を封口する封口体との間に設けられる二次電池用ガスケットであって、
前記二次電池用ガスケットは、前記電池ケース側の表層をなす第1絶縁層、及び第1絶縁層よりも前記封口体側に配置される第2絶縁層の少なくとも2層を備え、
前記第1絶縁層を形成する第1材料は、前記第2絶縁層を形成する第2材料よりも融点が高いことを特徴とする二次電池用ガスケット。
[項目2]
前記第1材料の融点は、300℃以上である項目1に記載の二次電池用ガスケット。
[項目3]
前記第1材料は、フッ素樹脂である項目1又は2に記載の二次電池用ガスケット。
[項目4]
前記第1絶縁層は、前記第2絶縁層よりも硬度が低い項目1乃至3のいずれか1項に記載の二次電池用ガスケット。
[項目5]
前記封口体側の表層をなす第3絶縁層をさらに備え、
前記第3絶縁層を形成する第3材料は、前記第2材料よりも融点が高い項目1乃至4のいずれか1項に記載の二次電池用ガスケット。
[項目6]
正極板及び負極板がセパレータとともに捲回された電極群と、
前記電極群を収容する電池ケースと、
前記電池ケースの開口部を封口する封口体と、
前記電池ケースと前記封口体との間に設けられる項目1乃至5のいずれか1項に記載の二次電池用ガスケットと、
を備えることを特徴とする二次電池。
[項目7]
前記電池ケースの内側面に設けられる封止剤層をさらに備える項目6に記載の二次電池。
Claims (8)
- 電池ケースと、当該電池ケースの開口部を封口する封口体との間に設けられる二次電池用ガスケットであって、
前記二次電池用ガスケットは、前記電池ケース側の表層をなす第1絶縁層、及び第1絶縁層よりも前記封口体側に配置される第2絶縁層の少なくとも2層を備え、
前記第1絶縁層を形成する第1材料は、前記第2絶縁層を形成する第2材料よりも融点が高く、融点が230℃以上であることを特徴とする二次電池用ガスケット。 - 前記第1材料の融点は、300℃以上である請求項1に記載の二次電池用ガスケット。
- 前記第1材料は、フッ素樹脂である請求項1又は2に記載の二次電池用ガスケット。
- 前記第1絶縁層は、前記第2絶縁層よりも硬度が低い請求項1乃至3のいずれか1項に記載の二次電池用ガスケット。
- 前記封口体側の表層をなす第3絶縁層をさらに備え、
前記第3絶縁層を形成する第3材料は、前記第2材料よりも融点が高い請求項1乃至4のいずれか1項に記載の二次電池用ガスケット。 - 正極板及び負極板がセパレータとともに捲回された電極群と、
前記電極群を収容する電池ケースと、
前記電池ケースの開口部を封口する封口体と、
前記電池ケースと前記封口体との間に設けられる請求項1乃至5のいずれか1項に記載の二次電池用ガスケットと、
を備えることを特徴とする二次電池。 - 前記電池ケースの内側面に設けられる封止剤層をさらに備える請求項6に記載の二次電池。
- 正極板及び負極板がセパレータとともに捲回された電極群と、
前記電極群を収容する電池ケースと、
前記電池ケースの開口部を封口する封口体と、
前記電池ケースと前記封口体との間に設けられる二次電池用ガスケットと、
を備え、
前記二次電池用ガスケットは、前記電池ケース側の表層をなす第1絶縁層、及び前記第1絶縁層よりも前記封口体側に配置される第2絶縁層の少なくとも2層を有し、
前記第1絶縁層を形成する第1材料は、前記第2絶縁層を形成する第2材料よりも融点が高く、フッ素樹脂、ポリフェニレンサルファイド、ポリブチレンテレフタレート及びポリイミドからなる群から選択されることを特徴とする二次電池。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2012/006134 WO2014049645A1 (ja) | 2012-09-26 | 2012-09-26 | 二次電池用ガスケット及び二次電池 |
Publications (2)
Publication Number | Publication Date |
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JPWO2014049645A1 JPWO2014049645A1 (ja) | 2016-08-18 |
JP6033876B2 true JP6033876B2 (ja) | 2016-11-30 |
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JP2014537832A Active JP6033876B2 (ja) | 2012-09-26 | 2012-09-26 | 二次電池用ガスケット及び二次電池 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150221902A1 (ja) |
JP (1) | JP6033876B2 (ja) |
CN (1) | CN104584260B (ja) |
WO (1) | WO2014049645A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20180128778A (ko) * | 2017-05-24 | 2018-12-04 | 주식회사 엘지화학 | 이차전지 및 그 이차전지의 절연부재 제조 방법 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102234381B1 (ko) * | 2014-01-07 | 2021-03-31 | 삼성에스디아이 주식회사 | 내열부재를 갖는 이차 전지 |
KR101777458B1 (ko) | 2014-07-25 | 2017-09-11 | 주식회사 엘지화학 | 원형 이차 전지 |
KR101881207B1 (ko) * | 2015-07-23 | 2018-07-24 | 신흥에스이씨주식회사 | 전기적 안전성이 우수한 캡업이나 안전밴트의 단락을 방지하는 이차전지용 캡조립체 및 그 이차전지 |
KR102528359B1 (ko) * | 2015-11-26 | 2023-05-03 | 삼성에스디아이 주식회사 | 이차 전지 |
JP6683150B2 (ja) * | 2017-02-21 | 2020-04-15 | トヨタ自動車株式会社 | 円筒型電池 |
KR102586879B1 (ko) * | 2017-10-11 | 2023-10-10 | 삼성에스디아이 주식회사 | 이차 전지 |
Family Cites Families (14)
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---|---|---|---|---|
JPS5978443A (ja) * | 1982-10-28 | 1984-05-07 | Matsushita Electric Ind Co Ltd | 扁平型電池 |
JPS63202845A (ja) * | 1987-02-18 | 1988-08-22 | Sanyo Electric Co Ltd | 非水電解液電池 |
JPH10270003A (ja) * | 1997-03-27 | 1998-10-09 | Toray Ind Inc | 密閉型電池 |
JP2000277063A (ja) * | 1999-03-29 | 2000-10-06 | Sanyo Electric Co Ltd | 密閉型電池 |
JP4854208B2 (ja) * | 2005-03-09 | 2012-01-18 | 三洋電機株式会社 | 密閉型電池およびその製造方法 |
JP2006286284A (ja) * | 2005-03-31 | 2006-10-19 | Matsushita Electric Ind Co Ltd | 扁平電池およびその製造方法 |
JP2008204839A (ja) * | 2007-02-21 | 2008-09-04 | Matsushita Electric Ind Co Ltd | 円筒形電池用封口板 |
JP5245425B2 (ja) * | 2007-06-05 | 2013-07-24 | ソニー株式会社 | 負極および二次電池 |
NZ581543A (en) * | 2007-06-29 | 2012-05-25 | Eveready Battery Inc | Vapor transmission resistant seal members for nonaqueous electrochemical cells |
JPWO2009119094A1 (ja) * | 2008-03-27 | 2011-07-21 | パナソニック株式会社 | 密閉型電池 |
KR101212829B1 (ko) * | 2008-06-09 | 2012-12-14 | 파나소닉 주식회사 | 전지 |
JP2010073319A (ja) * | 2008-09-16 | 2010-04-02 | Panasonic Corp | 密閉型電池 |
JP5566641B2 (ja) * | 2009-08-26 | 2014-08-06 | 株式会社東芝 | 電池 |
KR101240717B1 (ko) * | 2010-10-13 | 2013-03-11 | 삼성에스디아이 주식회사 | 이차 전지 |
-
2012
- 2012-09-26 US US14/424,324 patent/US20150221902A1/en not_active Abandoned
- 2012-09-26 CN CN201280075341.4A patent/CN104584260B/zh active Active
- 2012-09-26 WO PCT/JP2012/006134 patent/WO2014049645A1/ja active Application Filing
- 2012-09-26 JP JP2014537832A patent/JP6033876B2/ja active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180128778A (ko) * | 2017-05-24 | 2018-12-04 | 주식회사 엘지화학 | 이차전지 및 그 이차전지의 절연부재 제조 방법 |
KR102254262B1 (ko) * | 2017-05-24 | 2021-05-21 | 주식회사 엘지에너지솔루션 | 이차전지 및 그 이차전지의 절연부재 제조 방법 |
Also Published As
Publication number | Publication date |
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CN104584260B (zh) | 2018-03-06 |
JPWO2014049645A1 (ja) | 2016-08-18 |
US20150221902A1 (en) | 2015-08-06 |
WO2014049645A1 (ja) | 2014-04-03 |
CN104584260A (zh) | 2015-04-29 |
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