- 专利标题: Negative electrode active material for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery
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申请号: US15324951申请日: 2015-08-27
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公开(公告)号: US11043665B2公开(公告)日: 2021-06-22
- 发明人: Hiroshi Minami , Kouhei Tuduki , Atsushi Fukui , Taizou Sunano , Yoshio Kato
- 申请人: SANYO Electric Co., Ltd.
- 申请人地址: JP Daito
- 专利权人: SANYO Electric Co., Ltd.
- 当前专利权人: SANYO Electric Co., Ltd.
- 当前专利权人地址: JP Daito
- 代理机构: Westerman, Hattori, Daniels & Adrian, LLP
- 优先权: JPJP2014-179344 20140903,JPJP2015-014158 20150128
- 国际申请: PCT/JP2015/004310 WO 20150827
- 国际公布: WO2016/035290 WO 20160310
- 主分类号: H01M4/36
- IPC分类号: H01M4/36 ; H01M4/38 ; H01M4/48 ; H01M4/485 ; H01M4/58 ; H01M4/02
摘要:
In a nonaqueous electrolyte secondary battery containing a silicon material as a negative electrode active material, the initial charge-discharge efficiency is improved. Negative electrode active material particles (10) according to an embodiment each contain a lithium silicate phase (11) represented by Li2zSiO(2+z) (where 0
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