发明名称 |
SEPARATOR FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE SAME |
摘要 |
A separator 4 for a lithium secondary battery includes a porous film 12 including a polyolefin layer 16 and a lubricant layer 14 disposed on a surface of the porous film 12. The lubricant layer 14 includes a particulate substance 22 and has a three-dimensional surface roughness of 0.15 to 1.45 μm. The particulate substance 22 can adhere to the surface of the porous film 12 by electrostatic attraction. The porous film 12 can further include a heat-resistant porous layer 18 between the polyolefin layer 16 and the lubricant layer 14. The separator 4 allows a winding core for the lithium secondary battery to be pulled out smoothly.
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申请公布号 |
US2011159347(A1) |
申请公布日期 |
2011.06.30 |
申请号 |
US201013062151 |
申请日期 |
2010.04.06 |
申请人 |
SHIBANO YASUYUKI;YAMAMOTO NORIHIRO;SHINOHARA YASUO;WATANABE KOICHIRO |
发明人 |
SHIBANO YASUYUKI;YAMAMOTO NORIHIRO;SHINOHARA YASUO;WATANABE KOICHIRO |
分类号 |
H01M2/16 |
主分类号 |
H01M2/16 |
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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