发明授权
- 专利标题： Electrode, and current collector used therefor
- 专利标题（中）： 电极和集电器用于此
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申请号： US12306854申请日： 2007-12-26
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公开(公告)号： US08986882B2公开(公告)日： 2015-03-24
- 发明人: Shuji Ito , Yasutaka Kogetsu , Kazuya Iwamoto , Kazuyoshi Honda , Taisuke Yamamoto , Yasuhiro Ueyama , Keisuke Ohara , Hitoshi Katayama
- 申请人： Shuji Ito , Yasutaka Kogetsu , Kazuya Iwamoto , Kazuyoshi Honda , Taisuke Yamamoto , Yasuhiro Ueyama , Keisuke Ohara , Hitoshi Katayama
- 申请人地址： JP Osaka
- 专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2006-352768 20061227; JP2007-120768 20070501; JP2007-128460 20070514; JP2007-156012 20070613; JP2007-237715 20070913; JP2007-253199 20070928
- 国际申请： PCT/JP2007/074890 WO 20071226
- 国际公布： WO2008/078755 WO 20080703
- 主分类号： H01M4/02
- IPC分类号： H01M4/02 ; H01M4/70 ; H01M4/66 ; H01M10/0525 ; H01M4/04
摘要：
The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.
公开/授权文献
- US20090280407A1 BATTERY, ELECTRODE, AND CURRENT COLLECTOR USED THEREFOR 公开/授权日：2009-11-12
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