发明名称 |
NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY COMPRISING SAME, AND LITHIUM SECONDARY BATTERY |
摘要 |
Disclosed are a negative electrode active material for lithium secondary batteries, a method of preparing the same and a lithium secondary battery including the same. More particularly, the negative electrode active material includes a core that includes a lithium titanium oxide represented by Formula 1 below and a coating layer that is located in a surface of the core and includes fluorine, and thus, a moisture content in the active material is decreased and adsorption of outside moisture is inhibited, thereby removing concern for side reaction occurrence due to moisture. In addition, loss of an SEI layer may be prevented due to a stable fluorine-containing coating layer formed on a surface of the active material. As a result, battery performance may be enhanced and stable expression thereof is possible:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ[Formula 1]€ƒ€ƒ€ƒ€ƒ€ƒLi x Ti y O 4 ,
wherein x and y are the same as defined in the present specification. |
申请公布号 |
EP3067972(A1) |
申请公布日期 |
2016.09.14 |
申请号 |
EP20150847413 |
申请日期 |
2015.07.23 |
申请人 |
LG CHEM, LTD. |
发明人 |
CHUNG, JU HO;KIM, EUN KYUNG;WOO, SANG WOOK;PARK, SUNG BIN;KIM, YERI;SONG, JUN HYUK |
分类号 |
H01M4/485;H01M4/131;H01M4/36;H01M4/62;H01M10/0525 |
主分类号 |
H01M4/485 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|