| 发明名称 |
LITHIUM ION SECONDARY BATTERY, AND METHOD OF MANUFACTURING LITHIUM ION SECONDARY BATTERY |
| 摘要 |
A lithium ion secondary battery includes: a positive electrode sheet that includes a positive electrode active material layer containing a positive electrode active material particle; a negative electrode sheet; and a nonaqueous electrolytic solution that contains a compound containing fluorine, wherein a surface of the positive electrode active material particle includes a film containing fluorine and phosphorus, and a ratio Cf/Cp satisfies 1.89≦Cf/Cp≦2.61 where Cf represents the number of fluorine atoms in the film, and Cp represents the number of phosphorus atoms in the film. |
| 申请公布号 |
US2016204426(A1) |
申请公布日期 |
2016.07.14 |
| 申请号 |
US201614991338 |
申请日期 |
2016.01.08 |
| 申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
Miura Takashi;Kitayoshi Masanori;Yamazaki Nobuyuki |
| 分类号 |
H01M4/36;H01M10/0567;H01M10/0525;H01M4/505;H01M4/525 |
主分类号 |
H01M4/36 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lithium ion secondary battery comprising:
a positive electrode sheet that includes a positive electrode active material layer containing a positive electrode active material particle; a negative electrode sheet; and a nonaqueous electrolytic solution that contains a compound containing fluorine, wherein a surface of the positive electrode active material particle includes a film containing fluorine and phosphorus, and a ratio Cf/Cp satisfies 1.89≦Cf/Cp≦2.61 where Cf represents the number of fluorine atoms in the film, and Cp represents the number of phosphorus atoms in the film. |
| 地址 |
Toyota-shi JP |
