发明申请
- 专利标题： NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY
- 专利标题（中）： 用于锂二次电池的负极电极材料
-
申请号： US13877976申请日： 2011-10-11
-
公开(公告)号： US20140147748A1公开(公告)日： 2014-05-29
- 发明人: Koji Hisayuki , Daisuke Hashimoto
- 申请人： Koji Hisayuki , Daisuke Hashimoto
- 申请人地址： JP Tokyo
- 专利权人： SHOWA DENKO K.K.
- 当前专利权人： SHOWA DENKO K.K.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2010-229342 20101012
- 国际申请： PCT/JP11/73320 WO 20111011
- 主分类号： H01M4/36
- IPC分类号： H01M4/36
摘要：
A lithium secondary battery negative electrode material 1 is in the form of a foil 2 or a plate, and includes a core layer 3 having electrical conductivity, and a porous layer 4 which is formed on at least one surface of the core layer 3, and which contains Al in an amount of 90 mass % or more. The porous layer 4 has a porosity of 30 to 70 vol. %. Pores 5 formed in the porous layer 4 have a pore size of 0.1 to 15 μm. The lithium secondary battery negative electrode material 1 realizes prolongation of the cycle life of a lithium secondary battery.
信息查询
