JP5294566B2 - 角形電池 - Google Patents
角形電池 Download PDFInfo
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- JP5294566B2 JP5294566B2 JP2007090911A JP2007090911A JP5294566B2 JP 5294566 B2 JP5294566 B2 JP 5294566B2 JP 2007090911 A JP2007090911 A JP 2007090911A JP 2007090911 A JP2007090911 A JP 2007090911A JP 5294566 B2 JP5294566 B2 JP 5294566B2
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- JP
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- Prior art keywords
- battery
- expansion
- recess
- concave portion
- sealing
- Prior art date
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- Expired - Fee Related
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- 230000001629 suppression Effects 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 17
- 239000003792 electrolyte Substances 0.000 claims description 5
- 239000008151 electrolyte solution Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 15
- 239000011255 nonaqueous electrolyte Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- 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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
-
- 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
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- 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
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
-
- 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
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- 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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49108—Electric battery cell making
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Description
〈凹部形成ステップ〉
絞り加工により、アルミニウム製の角形外装缶(高さ50mm、幅34mm、厚み5.2mm)を作製した。この絞り加工と同時に、図2に示すように、外装缶1の面積の最も大きい側面の面積中心点を中心として、当該側面の面積の36%の領域(外装缶の最も面積の大きい側面の面積中心点を中心として、高さ30mm、幅20.4mmの領域)に、最大深さが0.05mmである凹部2を形成した。
コバルト酸リチウムを主体とする正極と、黒鉛を主体とする負極と、ポリオレフィン系微多孔膜からなるセパレータと、を備えた電極体を上記外装缶1の内部に収容し。、外装缶1の開口を封口体4により封口した。この後、エチレンカーボネートとジエチルカーボネートとの混合物からなる非水溶媒に、LiPF6をからなる電解質塩を溶解した電解液を、封口体4に設けられた注液口から注液した。
注液口に封止栓5を挿入し、封止栓周囲を溶接した。
円周上の先端部分が回転軸方向に半径2.5mmであり直径17mmのローラを用いて凹部2の中央部分に、電池高さ方向に平行な膨張抑制溝3(溝幅は0.3mm)を3本、4.0mmの間隔で形成して、実施例1に係る非水電解質二次電池を作製した。
凹部が形成されていない外装缶を用いたこと以外は、上記実施例1と同様にして、比較例1に係る非水電解質二次電池を作製した(図5参照)。
上記で作製した各電池の溝加工前及び溝加工後の電池厚みを測定した。
溝加工後の電池を、定電流1It(1050mA)で18分充電し、厚みを測定した(30%充電厚み)。
溝加工後の電池を、定電流1It(1050mA)で電圧が4.2Vとなるまで充電し、その後定電圧4.2Vで電流が51mAとなるまで充電し、厚みを測定した(満充電厚み)。
これらの結果(実施例1、比較例1ともに各20セル)を下記表1に示す。なお、下記表1において、かっこ外数値は平均値、かっこ外数値はバラツキを示す。また、実施例1の満充電後の膨張抑制溝近傍の形状を図3(b)、比較例1の満充電後の膨張抑制溝近傍の形状を図3(a)に示す。
上記で作製した各電池を、定電流1It(1050mA)で電圧が4.2Vとなるまで充電し、その後定電圧4.2Vで電流が51mAとなるまで充電し、厚みを測定した(試験前厚み)。
この後、この電池を85℃の恒温槽内で3時間保存し、この電池厚みを測定した(取出し直後厚み)。
この後、この電池を電池が室温(25℃)となるまで冷却し、この電池厚みを測定した(冷却後厚み)。
これらの結果(実施例1、比較例1ともに各5セル)を下記表2に示す。なお、下記表2において、かっこ外数値は平均値、かっこ外数値はバラツキを示す。
なお、上記実施例では、外装缶材料としてアルミニウムを用いたが、これに限定するものではなく、アルミニウム合金・鉄・ステンレススチール等の公知の材質でも良い。
2 凹部
3 膨張抑制溝
4 封口体
5 封止栓
Claims (5)
- 正極と負極とを有する電極体と、電解液と、が、角形外装缶に収納された電池において、
前記外装缶の四つの側面のうち、最も面積の大きい側面の中央領域には、外装缶内方に向かって突出した凹部が設けられ、
前記凹部に一つ以上の膨張抑制溝が設けられ、
前記膨張抑制溝は、前記電池の高さ方向に平行に複数形成されている
ことを特徴とする角形電池。 - 請求項1に記載の角形電池において、
前記凹部は、少なくとも外装缶の最も面積の大きい側面の面積中心点を中心にして、面積が36%の領域に形成されている、
ことを特徴とする角形電池。 - 請求項1に記載の角形電池において、
前記凹部の最大深さが、0.05〜0.1mmである、
ことを特徴とする角形電池。 - 請求項1に記載の角形電池において、
前記膨張抑制溝の隣り合う溝同士の間隔が3.0〜6.0mmである、
ことを特徴とする角形電池。 - 角形外装缶の四つの側面のうち、最も面積の大きい側面に凹部を形成する凹部形成ステップと、
凹部が形成された前記角形外装缶の内部に正極と負極とを有する電極体を収容する収容ステップと、
前記角形外装缶の開口を封口体で封口する封口ステップと、
電解液を注入して栓をする封止ステップと、
封止後の電池外装缶の最も面積の大きい側面に形成された前期凹部に一つ以上の膨張抑
制溝を形成する膨張抑制溝形成ステップと、
を備えることを特徴とする角形電池の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007090911A JP5294566B2 (ja) | 2007-03-30 | 2007-03-30 | 角形電池 |
KR1020080014244A KR20080089159A (ko) | 2007-03-30 | 2008-02-18 | 각형 전지 |
CN2008100834629A CN101276886B (zh) | 2007-03-30 | 2008-03-07 | 方形电池 |
US12/058,957 US20080241673A1 (en) | 2007-03-30 | 2008-03-31 | Prismatic cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007090911A JP5294566B2 (ja) | 2007-03-30 | 2007-03-30 | 角形電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008251340A JP2008251340A (ja) | 2008-10-16 |
JP5294566B2 true JP5294566B2 (ja) | 2013-09-18 |
Family
ID=39794989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007090911A Expired - Fee Related JP5294566B2 (ja) | 2007-03-30 | 2007-03-30 | 角形電池 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080241673A1 (ja) |
JP (1) | JP5294566B2 (ja) |
KR (1) | KR20080089159A (ja) |
CN (1) | CN101276886B (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2496185A (en) * | 2011-11-07 | 2013-05-08 | Energy Control Ltd | Housing structure for holding a plurality of square secondary batteries |
CN103390730A (zh) * | 2012-05-09 | 2013-11-13 | 电能有限公司 | 装设多个方形二次电池的壳体结构 |
JP6136407B2 (ja) * | 2013-03-15 | 2017-05-31 | 株式会社Gsユアサ | 電源モジュール |
CN103236565B (zh) * | 2013-04-18 | 2015-10-28 | 徐敖奎 | 一种卷绕式方型锂离子电池 |
KR102234288B1 (ko) * | 2014-04-16 | 2021-03-31 | 삼성에스디아이 주식회사 | 전지 팩 |
KR102234293B1 (ko) * | 2014-04-16 | 2021-03-31 | 삼성에스디아이 주식회사 | 전지 팩 |
KR101867650B1 (ko) * | 2014-09-19 | 2018-06-14 | 주식회사 엘지화학 | 만입형 단차가 형성되어 있는 전지케이스를 포함하는 전지셀 |
CN105140436A (zh) * | 2015-08-25 | 2015-12-09 | 苏州德博新能源有限公司 | 一种蓄电池 |
JP2020024782A (ja) * | 2016-11-30 | 2020-02-13 | パナソニック株式会社 | 二次電池及び電池パック |
WO2019003772A1 (ja) * | 2017-06-26 | 2019-01-03 | パナソニックIpマネジメント株式会社 | 蓄電装置 |
JP7302470B2 (ja) * | 2019-12-27 | 2023-07-04 | マツダ株式会社 | 車両用リチウムイオンバッテリ装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0935692A (ja) * | 1995-07-24 | 1997-02-07 | Furukawa Battery Co Ltd:The | 角形密閉電池 |
JPH1167276A (ja) * | 1997-08-15 | 1999-03-09 | Sony Corp | 非水電解液二次電池 |
KR100337539B1 (ko) * | 1998-12-24 | 2002-07-18 | 성재갑 | 함몰부를 함유한 면을 포함하는 각형 캔을이용한 리튬 이온 전지 |
JP3863351B2 (ja) * | 2000-02-18 | 2006-12-27 | 松下電器産業株式会社 | 角形電池および角形電池の安全機構の製造方法 |
JP2002042741A (ja) * | 2000-07-28 | 2002-02-08 | Matsushita Electric Ind Co Ltd | 密閉角形扁平電池 |
JP3725433B2 (ja) * | 2001-02-15 | 2005-12-14 | Necトーキン栃木株式会社 | 角型電池およびその製造方法 |
JP4446735B2 (ja) * | 2003-12-26 | 2010-04-07 | 三洋電機株式会社 | 非水電解質二次電池 |
JP2005346965A (ja) * | 2004-05-31 | 2005-12-15 | Sanyo Electric Co Ltd | 電池及び電池の製造方法 |
KR100614381B1 (ko) * | 2004-07-29 | 2006-08-21 | 삼성에스디아이 주식회사 | 리튬 이온 이차 전지 |
-
2007
- 2007-03-30 JP JP2007090911A patent/JP5294566B2/ja not_active Expired - Fee Related
-
2008
- 2008-02-18 KR KR1020080014244A patent/KR20080089159A/ko not_active Application Discontinuation
- 2008-03-07 CN CN2008100834629A patent/CN101276886B/zh not_active Expired - Fee Related
- 2008-03-31 US US12/058,957 patent/US20080241673A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20080241673A1 (en) | 2008-10-02 |
JP2008251340A (ja) | 2008-10-16 |
KR20080089159A (ko) | 2008-10-06 |
CN101276886B (zh) | 2012-12-26 |
CN101276886A (zh) | 2008-10-01 |
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