发明名称 |
LITHIUM ION SECONDARY BATTERY HAVING SHAPE-MEMORY ALLOY SAFETY VENT |
摘要 |
A lithium ion secondary battery has a shape memory safety vent adapted to discharge internal compressed gas by temporarily being opened when the temperature reaches a predetermined level to avoid a swelling phenomenon of the battery and improve safety. The lithium ion secondary battery includes an electrode assembly having first and second electrode plates wound a number of times with a separator interposed between them; a can having an opening formed on a side thereof to contain the electrode assembly; and a cap plate adapted to cover the can and provided with a vent hole on a side thereof, to which a safety vent adapted to deform at a predetermined temperature and discharge gas from inside the can to the exterior is coupled. |
申请公布号 |
KR20060022556(A) |
申请公布日期 |
2006.03.10 |
申请号 |
KR20040071415 |
申请日期 |
2004.09.07 |
申请人 |
SAMSUNG SDI CO., LTD. |
发明人 |
HONG, EUI SUN;KWAK, YOON TAI |
分类号 |
H01M2/04;H01M2/12;H01M2/26;H01M10/05;H01M10/0525;H01M10/058;H01M10/0587 |
主分类号 |
H01M2/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|