| 发明名称 |
SECONDARY BATTERY |
| 摘要 |
The present invention relates to a secondary battery, comprising an electrode element comprising a positive electrode and a negative electrode placed opposite to each other, an electrolyte, and an outer package housing the electrode element and the electrolyte; wherein
the negative electrode is formed by binding a negative electrode active material, which comprises a metal (a) capable of being alloyed with lithium, a metal oxide (b) capable of intercalating/deintercalating lithium ions, and a carbon material (c) capable of intercalating/deintercalating lithium ions, to a negative electrode current collector with a negative electrode binder; andthe electrolyte comprises a lithium salt dissolved in a solvent comprising 65 vol % or more of a phosphate ester compound, and more than 0 vol % and less than 20 vol % of a fluorinated carbonate compound. |
| 申请公布号 |
US2015093631(A1) |
申请公布日期 |
2015.04.02 |
| 申请号 |
US201314382445 |
申请日期 |
2013.02.04 |
| 申请人 |
NEC CORPORATION |
发明人 |
Kawasaki Daisuke;Matsumoto Kazuaki |
| 分类号 |
H01M10/0569;H01M4/62;H01M4/48;H01M4/38;H01M2/02;H01M4/58 |
主分类号 |
H01M10/0569 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A secondary battery, comprising an electrode element comprising a positive electrode and a negative electrode placed opposite to each other, an electrolyte, and an outer package housing the electrode element and the electrolyte; wherein
the negative electrode is formed by binding a negative electrode active material, which comprises a metal (a) capable of being alloyed with lithium, a metal oxide (b) capable of intercalating/deintercalating lithium ions, and a carbon material (c) capable of intercalating/deintercalating lithium ions, to a negative electrode current collector with a negative electrode binder; and the electrolyte comprises a lithium salt dissolved in a solvent comprising 65 vol % or more of a phosphate ester compound, and more than 0 vol % and less than 20 vol % of a fluorinated carbonate compound. |
| 地址 |
Tokyo JP |
