发明名称 |
Method of making a trilayer battery separator |
摘要 |
<p>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. <IMAGE></p> |
申请公布号 |
EP0872900(B1) |
申请公布日期 |
2004.09.29 |
申请号 |
EP19980106208 |
申请日期 |
1998.04.04 |
申请人 |
CELGARD INC. |
发明人 |
WEI-CHING YU;SHAWN, HUX E. |
分类号 |
B29C47/06;B29C55/02;B29K23/00;B29L9/00;H01M2/16;(IPC1-7):H01M2/16;H01M2/14 |
主分类号 |
B29C47/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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