| 发明名称 |
LITHIUM SECONDARY BATTERY |
| 摘要 |
A lithium secondary battery includes a thick-film negative electrode having a current density of about 4.0 mA/cm2 to about 7.0 mA/cm2 and a low-viscosity electrolytic solution having a viscosity of about 3 cP or less. Since the electrolytic solution includes a propionate-based ester compound, impregnation of the electrolytic solution in electronic devices having a thick-film negative electrode and lifespan characteristics of the devices may be improved. |
| 申请公布号 |
US2016118691(A1) |
申请公布日期 |
2016.04.28 |
| 申请号 |
US201514918461 |
申请日期 |
2015.10.20 |
| 申请人 |
SAMSUNG SDI CO., LTD. ;Samsung Fine Chemicals Co., Ltd. |
发明人 |
Goh Eunyoung;Lee Jiwoon;Lee Jinhyon;Lee Jongki;Jeong Kiyoung;Park Minje;Cho Jeong-Ju;Jeon Jongho |
| 分类号 |
H01M10/0569;H01M10/0525 |
主分类号 |
H01M10/0569 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lithium secondary battery comprising a negative electrode, a positive electrode, and an electrolytic solution,
the negative electrode having a current density of about 4.0 mA/cm2 to about 7.0 mA/cm2, the electrolytic solution comprising a lithium salt and a non-aqueous organic solvent, the non-aqueous organic solvent comprising at least 75% by volume of a propionate-based ester compound based on a total volume of the non-aqueous organic solvent, the propionate-based ester compound comprising at least 85% by volume of a propionate-based ester compound having at least 5 carbon atoms based on a total volume of the propionate-based ester compound, and the electrolytic solution having a viscosity of about 3 cP or less. |
| 地址 |
Yongin-si KR |
