发明名称 |
METAL OXIDE ULTRAFINE FIBER-BASED COMPOSITE SEPARATOR WITH HEAT RESISTANCE AND SECONDARY BATTERY USING SAME |
摘要 |
An ultrafine fiber-based composite separator comprising a fibrous porous body which comprises ultrafine metal oxide/polymer composite fibers, or ultrafine metal oxide fibers and a polymer resin coating layer formed on the surface thereof, the ultrafine fibers being continuously randomly arranged and layered, and obtained by electrospinning a metal oxide precursor sol-gel solution or a mixture of a metal oxide precursor sol-gel solution and a polymer resin solution, wherein the surface of the metal oxide/polymer composite fibers has a uniform mixing composition of the metal oxide and the polymer resin, in which the separator has a heat shrinkage rate at 150˜250° C. of 10% or less and does not break down due to melting at a temperature of 200° C. or lower, has low heat shrinkage rate, and superior heat resistance and ionic conductivity, being capable of providing improved cycle and power properties when used in manufacturing a battery. |
申请公布号 |
KR20110116489(A) |
申请公布日期 |
2011.10.26 |
申请号 |
KR20100035935 |
申请日期 |
2010.04.19 |
申请人 |
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
JO, SEONG MU;KIM, DONG YOUNG;JANG, SUNG YEON |
分类号 |
H01M2/16;D01F9/08;H01M2/18;H01M10/02 |
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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