发明名称 |
Method of making a trilayer battery separator |
摘要 |
A method of making a trilayer, shutdown battery separator has the following steps: extruding a polyethylene precursor; extruding a polypropylene precursor; forming a trilayer precursor, the trilayer precursor having the polyethylene precursor sandwiched between two polypropylene precursors; bonding the trilayer precursor; annealing the trilayer precursor; stretching the trilayer precursor; and forming thereby the battery separator.
|
申请公布号 |
US5952120(A) |
申请公布日期 |
1999.09.14 |
申请号 |
US19970839664 |
申请日期 |
1997.04.15 |
申请人 |
CELGARD LLC |
发明人 |
YU, WEI-CHING;HUX, SHAWN E. |
分类号 |
B29C47/06;B29C55/02;B29K23/00;B29L9/00;H01M2/16;(IPC1-7):H01M2/14 |
主分类号 |
B29C47/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|