发明申请
US20140255788A1 COLLECTOR, ELECTRODE STRUCTURE, NON-AQUEOUS ELECTROLYTE BATTERY, AND ELECTRICAL STORAGE DEVICE
审中-公开
收集器,电极结构,非水电解电池和电储存装置
- 专利标题: COLLECTOR, ELECTRODE STRUCTURE, NON-AQUEOUS ELECTROLYTE BATTERY, AND ELECTRICAL STORAGE DEVICE
- 专利标题(中): 收集器,电极结构,非水电解电池和电储存装置
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申请号: US14235712申请日: 2011-07-29
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公开(公告)号: US20140255788A1公开(公告)日: 2014-09-11
- 发明人: Masakuzu Seki , Osamu Kato , Sohei Saito , Yukiou Honkawa , Satoshi Suzuki , Koichi Ashizawa , Mitsuyuki Wasamoto , Kenichi Kadowaki , Kenji Yamamoto
- 申请人: Masakuzu Seki , Osamu Kato , Sohei Saito , Yukiou Honkawa , Satoshi Suzuki , Koichi Ashizawa , Mitsuyuki Wasamoto , Kenichi Kadowaki , Kenji Yamamoto
- 申请人地址: JP Chuo-ku, Tokyo JP Chiuyoda-ku, Tokyo
- 专利权人: UACJ FOIL CORPORATION,UACJ CORPORATION
- 当前专利权人: UACJ FOIL CORPORATION,UACJ CORPORATION
- 当前专利权人地址: JP Chuo-ku, Tokyo JP Chiuyoda-ku, Tokyo
- 国际申请: PCT/JP2011/067459 WO 20110729
- 主分类号: H01G11/68
- IPC分类号: H01G11/68 ; H01M4/66
摘要:
An object of the present invention is to provide a current collector which includes an aluminum alloy foil for electrode current collector, with high electrical conductivity and high strength after a drying process performed after application of an active material. According to the present invention, provided is a current collector including a conductive substrate and a resin layer provided on one side or both sides of the conductive substrate, wherein: the conductive substrate is an aluminum alloy foil containing 0.03 to 1.0 mass % (hereinafter mass % is referred to as %) of Fe, 0.01 to 0.3% of Si, 0.0001 to 0.2% of Cu, with the rest being Al and unavoidable impurities, an aluminum alloy foil after a final cold rolling having a tensile strength of 180 MPa or higher, a 0.2% yield strength of 160 MPa or higher, and an electrical conductivity of 58% IACS or higher; an aluminum alloy foil after performing a heat treatment at 120° C. for 24 hours, at 140° C. for 3 hours, or at 160° C. for 15 minutes after the final cold rolling having a tensile strength of 170 MPa or higher, and a 0.2% yield strength of 150 MPa or higher; the resin layer includes a resin containing an acryl-based resin, a soluble nitrocellulose-based resin or a chitosan-based resin, and a conductive material; and a water contact angle of the resin layer surface measured by θ/2 method in a thermostatic chamber at 23° C. is 30 degrees or more and 105 degrees or less when the resin is the acryl-based resin, 100 degrees of more and 110 degrees or less when the resin is the soluble nitrocellulose-based resin, and 20 degrees or more and 50 degrees or less when the resin is the chitosan-based resin.
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