发明授权
US09508974B2 PET nonwoven fabric for separator for secondary battery and separator for secondary battery comprising the same
有权
二次电池用隔膜用PET无纺布及包含该二次电池的二次电池用隔膜
- 专利标题： PET nonwoven fabric for separator for secondary battery and separator for secondary battery comprising the same
- 专利标题（中）： 二次电池用隔膜用PET无纺布及包含该二次电池的二次电池用隔膜
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申请号： US14369145申请日： 2012-11-09
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公开(公告)号： US09508974B2公开(公告)日： 2016-11-29
- 发明人: Hyang Doo Lee , Suk Hwa You , Chun Gi Kang , Seung Yong Jee , Do Hyeuk Hwang , Chang Gyu Ahn , Byoung Min Kwon , Hyun Sook Kim
- 申请人： TOPTEC HNS CO., LTD.
- 申请人地址： KR Gyeongsangbuk-Do
- 专利权人： TOPTEC HNS CO., LTD.
- 当前专利权人： TOPTEC HNS CO., LTD.
- 当前专利权人地址： KR Gyeongsangbuk-Do
- 代理机构： IPLA P.A.
- 代理商 James E. Bame
- 优先权： KR10-2012-0119079 20121025
- 国际申请： PCT/KR2012/009429 WO 20121109
- 国际公布： WO2014/065460 WO 20140501
- 主分类号： H01M2/14
- IPC分类号： H01M2/14 ; H01M2/16 ; D04H1/435 ; D04H3/011 ; H01M10/0525 ; D04H1/40 ; H01M10/052 ; D04H1/54
摘要：
A PET nonwoven fabric for a separator for a secondary battery includes first fibers composed of PET having a melting temperature of 240° C. or more and second fibers composed of PET having a melting temperature of 180˜220° C., respective fibers having two types of fibers having different diameters, and has a fine pore size and uniform pore distribution and exhibits superior surface properties, low surface defects, high mechanical strength and excellent mass production. Even when the temperature of a battery is increased to 200° C. or more, the PET nonwoven fabric has heat resistance which prevents thermal runaway and does not generate melting and shrinking.