JP5598942B2 - 密封性が向上した二次バッテリ - Google Patents
密封性が向上した二次バッテリ Download PDFInfo
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- JP5598942B2 JP5598942B2 JP2013532734A JP2013532734A JP5598942B2 JP 5598942 B2 JP5598942 B2 JP 5598942B2 JP 2013532734 A JP2013532734 A JP 2013532734A JP 2013532734 A JP2013532734 A JP 2013532734A JP 5598942 B2 JP5598942 B2 JP 5598942B2
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- injection hole
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- 238000007789 sealing Methods 0.000 title claims description 109
- 239000003792 electrolyte Substances 0.000 claims description 146
- 238000002347 injection Methods 0.000 claims description 125
- 239000007924 injection Substances 0.000 claims description 125
- 230000001788 irregular Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 230000007423 decrease Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
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Classifications
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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
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/668—Means for preventing spilling of liquid or electrolyte, e.g. when the battery is tilted or turned over
-
- 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
- H01M50/147—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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or 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
- H01M50/186—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
- H01M50/191—Inorganic 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
- H01M50/60—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
- 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
- Y10T29/4911—Electric battery cell making including sealing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Filling, Topping-Up Batteries (AREA)
Description
密封部材204をプレスし、それにより、塑性変形した密封部材と電解質注入孔との間の気密性及び均一性が確保される。
201・・・電極端子
202・・・電解質注入孔
203・・・絶縁部材
204・・・密封部材
220、220a・・・面取り構造
230・・・非面取り構造
240・・・エポキシ樹脂
250、250a・・・不規則な部分
400・・・二次バッテリ製造装置
420・・・ダイ
430・・・プレス機
440・・・制御装置
c・・・電解質漏出経路
Claims (14)
- 角柱容器内に入れられた電極アセンブリを有する二次バッテリであって、前記角柱容器の開口した上端に取り付けられたベースプレートに形成されるとともに平面視において円形状に形成された電解質注入孔の内側の上側部分が、前記電解質注入孔の直径が下方にいくに従い漸次小さくなる面取り構造となるように構成され、前記電解質注入孔の内側の下側部分が、非面取り構造となるように構成され、前記面取り構造が、電解質が前記二次バッテリから漏出する電解質漏出経路の長さを長くするために不規則な形状に形成されており、球形状に形成された密封部材が回転させられながら前記電解質注入孔の中に下方にプレスされると、前記電解質注入孔が前記密封部材によって密封されるように、前記密封部材が前記電解質注入孔の内部構造に対応するために変形される、ことを特徴とする二次バッテリ。
- 前記面取り構造は、前記電解質注入孔の深さ(D)に基づいて、0.3×Dから0.7×Dの範囲内で、前記電解質注入孔の上端から下向きに延在することを特徴とする、請求項1に記載の二次バッテリ。
- 前記面取り構造の上端の幅(Wtop)は、前記密封部材の直径(R)に基づいて、1.0×R<Wtop<1.7×Rの条件を満たすことを特徴とする、請求項1に記載の二次バッテリ。
- 前記面取り構造の下端の幅(Wbottom)は、前記密封部材の直径(R)に基づいて、0.5×R≦Wbottom≦0.9×Rの条件を満たすことを特徴とする、請求項1に記載の二次バッテリ。
- 前記非面取り構造の幅(W)は、前記面取り構造の下端の幅(Wbottom)と等しいことを特徴とする、請求項1に記載の二次バッテリ。
- 前記面取り構造の上端の幅(Wtop)と下端の幅(Wbottom)との差は、上端の幅(Wtop)の8%から42%であるという条件を満たすことを特徴とする、請求項1に記載の二次バッテリ。
- 前記密封部材の直径(R)と前記面取り構造の下端の幅(Wbottom)との差は、前記密封部材の直径(R)の8%から25%であることを特徴とする、請求項1に記載の二次バッテリ。
- 前記面取り構造の傾斜角度は、前記ベースプレートの頂部に対して30から70度であることを特徴とする、請求項1に記載の二次バッテリ。
- 前記不規則な形状は、1から50μmの間隔で配置された複数の突起によって形成されることを特徴とする、請求項1に記載の二次バッテリ。
- 前記密封部材が金属球であることを特徴とする、請求項1に記載の二次バッテリ。
- 前記密封部材が前記電解質注入孔上に設置された状態でプレスされ、且つ、前記面取り構造によって前記密封部材が前記電解質注入孔の中に落下することが妨げられ、前記密封部材と前記電解質注入孔との接触領域を増大させることを特徴とする、請求項1に記載の二次バッテリ。
- 前記密封部材が前記電解質注入孔の中にプレスされた後に、前記電解質注入孔の外周にエポキシ樹脂が塗布されることを特徴とする、請求項11に記載の二次バッテリ。
- 請求項1に記載の二次バッテリの製造方法であって、
(a)角柱容器に電極アセンブリを入れる工程と、
(b)電解質注入孔を有するベースプレートを前記角柱容器の開口した上端に取り付ける工程であって、前記電解質注入孔の内側の上側部分が、前記電解質注入孔の直径が下方にいくに従い漸次小さくなる面取り構造となるように構成され、前記面取り構造に不規則な部分が形成され、前記電解質注入孔の内側の下側部分が、非面取り構造となるように構成される、工程と、
(c)前記電解質注入孔を通して前記角柱容器の中に電解質を注入する工程と、
(d)前記電解質注入孔の上に密封部材が設置された状態で該密封部材をプレスし、前記電解質注入孔が前記密封部材によって密封されるように、前記電解質注入孔の内部構造に対応させるために前記密封部材を変形させる工程と、
を備え、前記(d)の工程が、
(d1)前記角柱容器がダイによって固定された状態で前記密封部材を前記電解質注入孔の上に設置する工程と、
(d2)プレス機を回転させながら該プレス機を下方へ移動させ、前記密封部材を前記電解質注入孔の中にプレスする工程と、
(d3)前記電解質注入孔が前記密封部材によって密封されるように、前記電解質注入孔を塑性変形させる工程と、
を備えることを特徴とする製造方法。 - 前記(d)の工程が、前記プレス機が所定の高さまで上方へ移動されて前記密封部材をプレスする状態で前記プレス機を垂直方向に繰り返し往復運動させる工程を更に備え、前記プレス機を繰り返し往復運動させる前記工程は、前記(d2)の工程と前記(d3)の工程との間に行われることを特徴とする、請求項13に記載の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100098033A KR101216419B1 (ko) | 2010-10-08 | 2010-10-08 | 밀봉성이 향상된 이차전지 |
KR10-2010-0098033 | 2010-10-08 | ||
PCT/KR2011/007434 WO2012047056A2 (ko) | 2010-10-08 | 2011-10-07 | 밀봉성이 향상된 이차전지 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013542566A JP2013542566A (ja) | 2013-11-21 |
JP5598942B2 true JP5598942B2 (ja) | 2014-10-01 |
Family
ID=45928249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013532734A Active JP5598942B2 (ja) | 2010-10-08 | 2011-10-07 | 密封性が向上した二次バッテリ |
Country Status (6)
Country | Link |
---|---|
US (1) | US8968899B2 (ja) |
EP (1) | EP2626927B1 (ja) |
JP (1) | JP5598942B2 (ja) |
KR (1) | KR101216419B1 (ja) |
CN (1) | CN103140955B (ja) |
WO (1) | WO2012047056A2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6105986B2 (ja) * | 2013-03-15 | 2017-03-29 | 日立オートモティブシステムズ株式会社 | 蓄電素子および蓄電素子の製造方法 |
KR101643035B1 (ko) * | 2013-09-30 | 2016-07-26 | 주식회사 엘지화학 | 이차전지 케이스 및 이차전지 제조방법 |
US9263725B2 (en) | 2013-09-30 | 2016-02-16 | Lg Chem, Ltd. | Secondary battery case and method for manufacturing secondary battery |
JP6094460B2 (ja) * | 2013-11-19 | 2017-03-15 | 株式会社豊田自動織機 | 蓄電装置の製造方法 |
KR101663988B1 (ko) * | 2015-02-06 | 2016-10-11 | 주식회사 비츠로셀 | 전해액 주입효율을 높인 전지 |
KR101864923B1 (ko) * | 2015-03-30 | 2018-06-05 | 주식회사 엘지화학 | 이차전지용 밀봉장치 및 밀봉방법 |
KR102091583B1 (ko) * | 2016-04-19 | 2020-03-20 | 주식회사 엘지화학 | 가열 밀봉에 기반한 전지셀 제조 방법 |
CN109075395B (zh) * | 2016-05-31 | 2021-08-03 | 株式会社村田制作所 | 电池及其制造方法 |
KR102234989B1 (ko) * | 2016-07-21 | 2021-04-01 | 주식회사 엘지화학 | 각형 전지의 전해액 주입장치 및 이를 이용한 전해액 주입 방법 |
US10446825B2 (en) | 2016-12-07 | 2019-10-15 | Greatbatch Ltd. | Closure system for the electrolyte fill port of an electrochemical cell |
WO2019013326A1 (ja) * | 2017-07-14 | 2019-01-17 | 株式会社Gsユアサ | 蓄電素子 |
JP2023058865A (ja) * | 2021-10-14 | 2023-04-26 | プライムプラネットエナジー&ソリューションズ株式会社 | 二次電池 |
CN115084802B (zh) * | 2022-08-18 | 2022-11-04 | 深圳市铂纳特斯自动化科技有限公司 | 用于电池注液的打液装置 |
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US4455356A (en) * | 1983-04-04 | 1984-06-19 | Barrett Jr James H | Bellows boot for secondary battery terminals |
JP3738544B2 (ja) | 1997-10-31 | 2006-01-25 | ソニー株式会社 | 角形密閉式電池 |
JPH11154506A (ja) | 1997-11-21 | 1999-06-08 | Mitsubishi Cable Ind Ltd | 密閉型電池 |
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KR100404887B1 (ko) * | 1999-01-20 | 2003-11-10 | 주식회사 엘지화학 | 리튬 이차 전지 |
JP2003197179A (ja) * | 2001-12-26 | 2003-07-11 | Mitsubishi Heavy Ind Ltd | 二次電池の密閉方法、製造方法、及び電解液注入口 |
WO2003069696A1 (en) * | 2002-02-13 | 2003-08-21 | Matsushita Electric Industrial Co., Ltd. | Battery pack manufacturing method |
JP2004327214A (ja) * | 2003-04-24 | 2004-11-18 | Nec Tokin Tochigi Ltd | 密閉型電池の製造方法 |
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KR100922442B1 (ko) * | 2005-12-14 | 2009-10-19 | 주식회사 엘지화학 | 전해액 주입구의 밀봉성이 우수한 각형 전지 |
JP4131553B2 (ja) * | 2006-05-27 | 2008-08-13 | 日立マクセル株式会社 | 密閉型電池 |
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KR101271254B1 (ko) * | 2010-10-08 | 2013-06-07 | 주식회사 엘지화학 | 전해액 주입구의 밀봉성이 우수한 각형 전지 |
-
2010
- 2010-10-08 KR KR1020100098033A patent/KR101216419B1/ko active IP Right Grant
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2011
- 2011-10-07 WO PCT/KR2011/007434 patent/WO2012047056A2/ko active Application Filing
- 2011-10-07 JP JP2013532734A patent/JP5598942B2/ja active Active
- 2011-10-07 CN CN201180047711.9A patent/CN103140955B/zh active Active
- 2011-10-07 EP EP11830941.8A patent/EP2626927B1/en active Active
-
2013
- 2013-03-18 US US13/845,870 patent/US8968899B2/en active Active
Also Published As
Publication number | Publication date |
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WO2012047056A3 (ko) | 2012-06-07 |
CN103140955B (zh) | 2015-05-20 |
WO2012047056A2 (ko) | 2012-04-12 |
US8968899B2 (en) | 2015-03-03 |
EP2626927A2 (en) | 2013-08-14 |
KR20120036389A (ko) | 2012-04-18 |
JP2013542566A (ja) | 2013-11-21 |
EP2626927B1 (en) | 2018-12-05 |
CN103140955A (zh) | 2013-06-05 |
US20130216876A1 (en) | 2013-08-22 |
EP2626927A4 (en) | 2014-04-02 |
KR101216419B1 (ko) | 2012-12-28 |
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