JP5001867B2 - 電池用電極及び電池用電極の製造方法 - Google Patents
電池用電極及び電池用電極の製造方法 Download PDFInfo
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
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- H—ELECTRICITY
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M4/00—Electrodes
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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- H—ELECTRICITY
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- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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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
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- H01M2004/021—Physical characteristics, e.g. porosity, surface area
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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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
Description
1.5≦σ1/σ2≦7 ・・・(式1)
1.5≦σ1/σ2≦7 ・・・(式1)
Al A1050(JIS)のAlから成り、15μmの厚さを有する正極集電体15の集電体無地部(15a)をアニーリング処理した。アニーリング処理は正極集電体15を550℃で24秒加熱した後、常温で徐々に冷却して行った。
Al A1050(JIS)のAlから成り、15μmの厚さを有する正極集電体の集電体コーティング部に活物質を塗布した後、乾燥及びプレシング加工を実施した。この状態で集電体無地部を横3mm、縦10mmに切断して、降伏荷重及び延伸量を測定した。そして集電体コーティング部上に形成された活物質を除去した後、集電体コーティング部を横3mm、縦10mmに切断して、降伏荷重及び延伸量を測定した。
11 無地部
12 コーティング部
15 集電体
17 活物質層
110 加熱部材
121、123 ローラ
130 コーティング部材
140 乾燥炉
150 加圧部材
Claims (12)
- 電池の正極又は負極に適用される電極であって、
前記電極は、板状の集電体と、前記集電体上に塗布される活物質層とから成り、
前記集電体は、上面に活物質層が形成される集電体コーティング部と、前記集電体コーティング部と隣接するように配置されて活物質層が形成されない集電体無地部とを含み、
前記集電体無地部は、活物質層が除去された前記集電体コーティング部より降伏応力が小さく、
前記集電体無地部は、前記集電体コーティング部より延伸率が大きく、
前記集電体コーティング部の降伏応力をσ1、前記集電体無地部の降伏応力をσ2としたとき、下記式1を満足することを特徴とする、電極。
1.5≦σ1/σ2≦7 ・・・(式1) - 前記集電体無地部は、前記集電体コーティング部より残留応力が小さいことを特徴とする請求項1に記載の電極。
- 前記集電体は、アルミニウムから成ることを特徴とする請求項1に記載の電極。
- 前記集電体は、銅から成ることを特徴とする請求項1に記載の電極。
- 前記正極又は前記負極は、正極と負極の間にセパレータを介在した後に巻き取って製造される2次電池に適用されることを特徴とする請求項1に記載の電極。
- 板状の集電体を準備する段階と、
前記集電体の周縁部をアニーリングする段階と、
前記集電体に活物質をコーティングする段階と、
前記活物質がコーティングされた前記集電体をプレシング加工する段階と、
を含み、
前記集電体のうち、前記活物質がコーティングされた集電体コーティング部の降伏応力をσ1、前記集電体のうち、前記活物質がコーティングされない集電体無地部の降伏応力をσ2としたとき、下記式1を満足することを特徴とする、電極の製造方法。
1.5≦σ1/σ2≦7 ・・・(式1) - 前記アニーリングする段階は、前記活物質をコーティングする段階以前に行われることを特徴とする請求項6に記載の電極の製造方法。
- 前記アニーリングする段階は、前記活物質をコーティングする段階以後であることを特徴とする請求項6に記載の電極の製造方法。
- 前記集電体は、アルミニウムから成ることを特徴とする請求項6に記載の電極の製造方法。
- 前記集電体は、銅から成ることを特徴とする請求項6に記載の電極の製造方法。
- 前記電極は正極と負極の間にセパレータを介在した後に巻き取って製造される2次電池の前記正極又は前記負極に適用されることを特徴とする請求項6に記載の電極の製造方法。
- 前記アニーリングする段階における前記集電体の周縁部は、輻射によって加熱されることを特徴とする請求項6に記載の電極の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070026724A KR100823198B1 (ko) | 2007-03-19 | 2007-03-19 | 전지용 전극 및 전지용 전극의 제조 방법 |
KR10-2007-0026724 | 2007-03-19 |
Publications (2)
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JP2008235251A JP2008235251A (ja) | 2008-10-02 |
JP5001867B2 true JP5001867B2 (ja) | 2012-08-15 |
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JP2008006044A Active JP5001867B2 (ja) | 2007-03-19 | 2008-01-15 | 電池用電極及び電池用電極の製造方法 |
Country Status (5)
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US (1) | US20080233476A1 (ja) |
EP (1) | EP1978579A3 (ja) |
JP (1) | JP5001867B2 (ja) |
KR (1) | KR100823198B1 (ja) |
CN (1) | CN101271970B (ja) |
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US8894818B2 (en) * | 2008-02-28 | 2014-11-25 | Chevron U.S.A. Inc. | Process for generating a hydrocarbon feedstock lignin |
KR20100069493A (ko) * | 2008-12-16 | 2010-06-24 | 삼성전자주식회사 | 전지 및 그를 포함하는 전지팩 |
WO2010098018A1 (ja) * | 2009-02-24 | 2010-09-02 | パナソニック株式会社 | 非水系二次電池用電極板とその製造方法およびこれを用いた非水系二次電池 |
KR20110017761A (ko) * | 2009-08-14 | 2011-02-22 | 에스비리모티브 주식회사 | 이차 전지용 전극판 및 이를 포함하는 이차 전지 |
JP2012174594A (ja) | 2011-02-23 | 2012-09-10 | Toshiba Corp | 非水電解質二次電池 |
JP5716622B2 (ja) * | 2011-09-26 | 2015-05-13 | 日産自動車株式会社 | 帯状電極の製造装置および製造方法 |
US20130189577A1 (en) * | 2011-12-20 | 2013-07-25 | Zheng Wang | Apparatus and method for hot coating electrodes of lithium-ion batteries |
JP5765574B2 (ja) * | 2011-12-20 | 2015-08-19 | トヨタ自動車株式会社 | 二次電池及びその製造方法ならびに該電池に用いられる負極シートの製造方法 |
US10050255B2 (en) | 2012-03-08 | 2018-08-14 | Samsung Sdi Co., Ltd. | Rechargeable battery and method of manufacturing the same |
US9490472B2 (en) * | 2013-03-28 | 2016-11-08 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing electrode for storage battery |
DE102017215143A1 (de) * | 2017-08-30 | 2019-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Elektrode und verfahren zur ihrer herstellung |
CN112292770A (zh) * | 2018-06-11 | 2021-01-29 | 株式会社村田制作所 | 电池用电极及其制造方法 |
EP3958347A4 (en) * | 2019-12-05 | 2022-10-19 | LG Energy Solution, Ltd. | SECONDARY BATTERY ELECTRODE AND METHOD FOR MAKING SECONDARY BATTERY ELECTRODE |
JP7289861B2 (ja) * | 2021-02-24 | 2023-06-12 | 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 | 電極シートの製造方法 |
EP4343876A1 (en) * | 2022-07-25 | 2024-03-27 | Contemporary Amperex Technology Co., Limited | Current collector, electrode sheet, battery cell, battery, and electrical device |
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CA2103490A1 (en) * | 1992-11-24 | 1994-05-25 | John J. Weckesser | Metal hydride electrode, cell and process |
JPH09199166A (ja) * | 1996-01-16 | 1997-07-31 | Hitachi Ltd | ナトリウム2次電池 |
JP4233670B2 (ja) * | 1999-03-01 | 2009-03-04 | パナソニック株式会社 | 非水電解液二次電池の製造方法 |
JP3986727B2 (ja) * | 2000-05-09 | 2007-10-03 | 株式会社タクマ | 導電性ウェブ状材料の製造装置及びこれを用いた導電性ウェブ状材料の製造方法 |
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JP2003133878A (ja) * | 2001-10-29 | 2003-05-09 | Sumitomo Special Metals Co Ltd | 圧電素子の製造方法 |
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JP2004071335A (ja) | 2002-08-06 | 2004-03-04 | Matsushita Electric Ind Co Ltd | 電池用電極板、電池、電池用電極板の製造方法、および電池用電極板の製造装置 |
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JP4238630B2 (ja) * | 2003-05-09 | 2009-03-18 | 株式会社デンソー | 電極の製造方法 |
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JP2006147485A (ja) | 2004-11-24 | 2006-06-08 | Ngk Spark Plug Co Ltd | 蓄電装置の製造方法 |
JP4954585B2 (ja) * | 2006-03-31 | 2012-06-20 | 株式会社デンソー | リチウムイオン電池用電極の製造方法 |
JP2007305322A (ja) * | 2006-05-09 | 2007-11-22 | Toyota Motor Corp | 電池及びその製造方法 |
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- 2007-03-19 KR KR1020070026724A patent/KR100823198B1/ko active IP Right Grant
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- 2008-01-15 JP JP2008006044A patent/JP5001867B2/ja active Active
- 2008-01-30 US US12/010,868 patent/US20080233476A1/en not_active Abandoned
- 2008-03-03 CN CN2008100831160A patent/CN101271970B/zh active Active
- 2008-03-11 EP EP08102488A patent/EP1978579A3/en not_active Ceased
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JP2008235251A (ja) | 2008-10-02 |
KR100823198B1 (ko) | 2008-04-18 |
EP1978579A3 (en) | 2012-08-29 |
EP1978579A2 (en) | 2008-10-08 |
CN101271970B (zh) | 2010-08-25 |
US20080233476A1 (en) | 2008-09-25 |
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