发明授权
- 专利标题： Negative electrode active material, nonaqueous electrolyte battery and battery pack
- 专利标题（中）： 负极活性物质，非水电解质电池和电池组
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申请号： US13686034申请日： 2012-11-27
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公开(公告)号： US08580435B2公开(公告)日： 2013-11-12
- 发明人: Yasuhiro Harada , Norio Takami , Hiroki Inagaki , Keigo Hoshina , Yuki Otani
- 申请人： Yasuhiro Harada , Norio Takami , Hiroki Inagaki , Keigo Hoshina , Yuki Otani
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 主分类号： H01M4/131
- IPC分类号： H01M4/131 ; H01M4/485 ; C01G23/047
摘要：
According to one embodiment, a negative electrode active material includes a compound having a crystal structure of monoclinic titanium dioxide. The compound has a highest intensity peak detected by an X-ray powder diffractometry using a Cu-Kα radiation source. The highest intensity peak is a peak of a (001) plane, (002) plane, or (003) plane. A half-width (2θ) of the highest intensity peak falls within a range of 0.5 degree to 4 degrees.