| 发明名称 |
LITHIUM SECONDARY BATTERY HAVING IMPROVED LIFESPAN CHARACTERISTICS |
| 摘要 |
Disclosed is a lithium secondary battery having improved lifespan characteristics. More particularly, a lithium secondary battery comprising a cathode, an anode, a separator interposed between the cathode and anode, and an electrolyte, wherein the anode comprises lithium titanium oxide (LTO) as an anode active material, the electrolyte comprises a lithium salt; a non-aqueous-based solvent; and (a) a phosphate compound which can prevent gas generation during high-temperature storage, (b) a sulfonate compound which can reduce discharge resistance by forming a low-resistance SEI layer, or a mixture of the compound (a) and the compound (b), is disclosed. |
| 申请公布号 |
US2015086880(A1) |
申请公布日期 |
2015.03.26 |
| 申请号 |
US201414560139 |
申请日期 |
2014.12.04 |
| 申请人 |
LG Chem, Ltd. |
发明人 |
Ahn Kyoung Ho;Lee Chul Haeng;Lee Jung Hoon;Yang Doo Kyung;Lim Young Min |
| 分类号 |
H01M10/0567;H01M10/052;H01M4/485;H01M10/0568;H01M10/0569 |
主分类号 |
H01M10/0567 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lithium secondary battery comprising a cathode, an anode, a separator interposed between the cathode and anode, and an electrolyte,
wherein the anode comprises lithium titanium oxide (LTO) as an anode active material, and the electrolyte comprises a lithium salt; a non-aqueous-based solvent; and (a) a phosphate compound which can prevent gas generation during high-temperature storage, (b) a sulfonate compound which can reduce discharge resistance by forming a low-resistance SEI layer, or a mixture of the compound (a) and the compound (b). |
| 地址 |
Seoul KR |
