发明名称 |
Additive for sodium ion secondary battery and sodium ion secondary battery |
摘要 |
An additive for a sodium ion secondary battery of the present invention includes a compound of at least one of a saturated cyclic carbonate having a fluoro group and a chain carbonate having a fluoro group. A sodium ion secondary battery (1) of the present invention includes: a non-aqueous electrolytic solution including the additive for a sodium ion secondary battery and a non-aqueous solvent containing a saturated cyclic carbonate or a non-aqueous solvent containing a saturated cyclic carbonate and a chain carbonate; a positive electrode (11); and a negative electrode (12) that includes a coating formed in a surface of the negative electrode, the coating containing a composite material having carbon, oxygen, fluorine and sodium in the surface and includes a negative-electrode active material containing a hard carbon. |
申请公布号 |
US9466855(B2) |
申请公布日期 |
2016.10.11 |
申请号 |
US201214007250 |
申请日期 |
2012.03.08 |
申请人 |
NISSAN MOTOR CO., LTD.;TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION |
发明人 |
Ito Atsushi;Ohsawa Yasuhiko;Komaba Shinichi |
分类号 |
H01M6/16;H01M10/0567;H01M4/36;H01M4/587;H01M10/054 |
主分类号 |
H01M6/16 |
代理机构 |
Foley & Lardner LLP |
代理人 |
Foley & Lardner LLP |
主权项 |
1. A sodium ion secondary battery, comprising:
a non-aqueous electrolytic solution that includes an additive for a sodium ion secondary battery comprising fluoroethylene carbonate, and one of a non-aqueous solvent containing a saturated cyclic carbonate and a non-aqueous solvent containing a saturated cyclic carbonate and a chain carbonate; a positive electrode that includes a positive-electrode active material capable of storing and releasing a sodium; and a negative electrode that includes a coating formed on a surface of the negative electrode, the coating containing a composite material containing carbon, oxygen, fluorine and sodium, and that includes a negative-electrode active material containing a hard carbon, wherein a content of the additive for a sodium ion secondary battery in the non-aqueous electrolytic solution is in a range from 0.5% by volume to 10% by volume inclusive. |
地址 |
Yokohama-Shi JP |