JP6927658B2 - リチウムパウチ型電池 - Google Patents
リチウムパウチ型電池 Download PDFInfo
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- H—ELECTRICITY
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
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- 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 of a single cell or a single battery
- H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
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- H—ELECTRICITY
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
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- H—ELECTRICITY
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
- H01M50/451—Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
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- H—ELECTRICITY
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
- H01M50/461—Separators, membranes or diaphragms characterised by their combination with electrodes with adhesive layers between electrodes and separators
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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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
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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
- H01M50/543—Terminals
- H01M50/547—Terminals characterised by the disposition of the terminals on the cells
- H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
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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
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
- H01M50/557—Plate-shaped terminals
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
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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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
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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 of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
- H01M50/1243—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure characterised by the internal coating on the casing
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- 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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- 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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- 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
- Y10T29/49114—Electric battery cell making including adhesively bonding
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- 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
- Y10T29/49115—Electric battery cell making including coating or impregnating
Description
LiCoO2、ポリビニリデンフルオライド(PVdF)、およびカーボンブラックをそれぞれ97:1.5:1.5の重量比で混合し、N−メチル−2−ピロリドンに分散させて正極活物質層組成物を製造した。前記正極活物質層組成物を厚さ12μmのアルミニウム箔にコーティングして、乾燥および圧延後、正極を製造した。
LiCoO2、ポリビニリデンフルオライド(PVdF)、およびカーボンブラックをそれぞれ97:1.5:1.5の重量比で混合し、N−メチル−2−ピロリドンに分散させて正極活物質層組成物を製造した。前記正極活物質層組成物を厚さ12μmのアルミニウム箔にコーティングして、乾燥および圧延後、正極を製造した。
略140gのアセタールで作ったケースに、実施例1および比較例1のリチウムパウチ型電池パック(pack)を入れて上下ケースをねじで締めた後、1mの高さからランダム自由落下(random free fall)を50回ずつ行った後、内部短絡(short)による発熱が発生する回数を確認した。50回ごとにケースを分離してパックの発熱を確認し、発熱が確認された自由落下回数を下記の表1に示した。
13 電極タブ
15 仕上材
20 パウチケース
100 リチウムパウチ型電池
Claims (10)
- 正極、負極、および前記正極と前記負極との間に位置したセパレータを含む電極アセンブリと、
前記電極アセンブリの外面に付着されたオリエンテッドポリスチレンフィルムと、
前記電極アセンブリを収納するパウチケースと、を含み、
前記セパレータは、多孔性基材と、前記多孔性基材の少なくとも一面に形成されるコーティング層とを含み、
前記コーティング層は、ポリマー、セラミック、またはこれらの組み合わせを含み、
前記電極アセンブリは、前記正極、前記セパレータ、および前記負極が順次に巻かれているゼリーロール形態を有し、
前記セパレータは、前記正極および前記負極対比で、さらに1回巻かれており、
前記オリエンテッドポリスチレンフィルムの外側接着力が内側接着力より強いことを特徴とする、リチウムパウチ型電池。 - 前記オリエンテッドポリスチレンフィルムは、前記電極アセンブリの一面が開放された形態で付着されることを特徴とする、請求項1に記載のリチウムパウチ型電池。
- 前記オリエンテッドポリスチレンフィルムの接着強度は、0.5〜8kgf/cm2であることを特徴とする、請求項1又は2に記載のリチウムパウチ型電池。
- 前記オリエンテッドポリスチレンフィルムの延伸率は、10〜400%であることを特徴とする、請求項1から3のいずれか一項に記載のリチウムパウチ型電池。
- 前記ポリマーは、ポリビニリデンフルオライド系高分子、アクリル系高分子、ポリメチルメタクリレート、アラミド樹脂、ポリアミドイミド樹脂、ポリイミド樹脂、またはこれらの組み合わせを含むことを特徴とする、請求項1から4のいずれか一項に記載のリチウムパウチ型電池。
- 前記ポリビニリデンフルオライド系高分子は、ポリビニリデンフルオライド、ポリビニリデンフルオライド−ヘキサフルオロプロピレン共重合体、またはこれらの組み合わせを含むことを特徴とする、請求項5に記載のリチウムパウチ型電池。
- 前記セラミックは、Al2O3、MgO、TiO2、Al(OH)3、Mg(OH)2、Ti(OH)4、またはこれらの組み合わせを含むことを特徴とする、請求項1から6のいずれか一項に記載のリチウムパウチ型電池。
- 前記コーティング層の厚さは、0.1〜6μmであることを特徴とする、請求項1から7のいずれか一項に記載のリチウムパウチ型電池。
- 前記リチウムパウチ型電池は、
前記パウチケースの内部に注入されるポリマー電解質とをさらに含むことを特徴とする、請求項1から8のいずれか一項に記載のリチウムパウチ型電池。 - 前記ポリマー電解質は、C1〜C10のアルキルプロピオネートを含むことを特徴とする、請求項9に記載のリチウムパウチ型電池。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2013-0078002 | 2013-07-03 | ||
KR1020130078002A KR20150004678A (ko) | 2013-07-03 | 2013-07-03 | 리튬 파우치형 전지 |
Publications (2)
Publication Number | Publication Date |
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JP2015015236A JP2015015236A (ja) | 2015-01-22 |
JP6927658B2 true JP6927658B2 (ja) | 2021-09-01 |
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JP2014101234A Active JP6927658B2 (ja) | 2013-07-03 | 2014-05-15 | リチウムパウチ型電池 |
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US (1) | US20150010797A1 (ja) |
EP (1) | EP2822058B1 (ja) |
JP (1) | JP6927658B2 (ja) |
KR (1) | KR20150004678A (ja) |
CN (1) | CN104282932B (ja) |
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CN102386357B (zh) * | 2011-10-28 | 2013-11-20 | 浙江南都电源动力股份有限公司 | 一种高性能锂离子电池聚合物复合隔膜的制备方法 |
CN202495548U (zh) * | 2012-02-13 | 2012-10-17 | 东莞新能源科技有限公司 | 一种软包装锂离子电池 |
KR101488917B1 (ko) * | 2012-02-29 | 2015-02-03 | 제일모직 주식회사 | 유기 및 무기 혼합물 코팅층을 포함하는 분리막 및 이를 이용한 전지 |
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2013
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- 2013-11-25 US US14/089,558 patent/US20150010797A1/en not_active Abandoned
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2014
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- 2014-03-12 CN CN201410089944.0A patent/CN104282932B/zh active Active
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US20150010797A1 (en) | 2015-01-08 |
CN104282932B (zh) | 2018-11-06 |
KR20150004678A (ko) | 2015-01-13 |
CN104282932A (zh) | 2015-01-14 |
EP2822058B1 (en) | 2016-04-20 |
JP2015015236A (ja) | 2015-01-22 |
EP2822058A1 (en) | 2015-01-07 |
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