发明申请
- 专利标题: PLATE-LIKE PARTICLE FOR CATHODE ACTIVE MATERIAL OF A LITHIUM SECONDARY BATTERY, A CATHODE ACTIVE MATERIAL FILM OF A LITHIUM SECONDARY BATTERY, AND A LITHIUM SECONDARY BATTERY
- 专利标题(中): 锂二次电池阴极活性材料的板状颗粒,锂二次电池的阴极活性材料膜和锂二次电池
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申请号: US12644369申请日: 2009-12-22
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公开(公告)号: US20100159329A1公开(公告)日: 2010-06-24
- 发明人: Ryuta SUGIURA , Nobuyuki Kobayashi , Shohei Yokoyama , Tsutomu Nanataki
- 申请人: Ryuta SUGIURA , Nobuyuki Kobayashi , Shohei Yokoyama , Tsutomu Nanataki
- 申请人地址: JP Nagoya-City
- 专利权人: NGK Insulators, Ltd.
- 当前专利权人: NGK Insulators, Ltd.
- 当前专利权人地址: JP Nagoya-City
- 优先权: JP2008-326997 20081224; JP2009-064862 20090317; JP2009-138984 20090610; JP2009-191674 20090821; JP2009-235010 20091009
- 主分类号: H01M4/583
- IPC分类号: H01M4/583 ; B32B5/16
摘要:
An object of the present invention is to improve the characteristics such as cell capacity, by raising the exposure of a crystal plane (a plane other than the (003) plane: e.g., (101) plane and (104) plane), through which lithium ions are favorably intercalated and deintercalated, to an electrolyte. A plate-like particle or a film for a lithium secondary battery cathode active material has a layered rock salt structure. A plane other than the (003) plane is oriented in parallel with the plate surface (a surface orthogonal to a thickness direction) and step-like structures are two-dimensionally formed along the plate surface.
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