Electrochemical performances of lithium-ion cells prepared with polyethylene oxide-coated separators

被引:66
作者
Kim, DW
Ko, JM
Chun, JH
Kim, SH
Park, JK
机构
[1] Hanbat Natl Univ, Dept Chem Technol, Taejon 305719, South Korea
[2] Korea Adv Inst Sci & Technol, Dept Chem Engn, Taejon 305701, South Korea
关键词
electrochemical performance; lithium-ion cell; microporous separator; PEO-coated separator;
D O I
10.1016/S1388-2481(01)00214-4
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Poly(ethylene oxide) (PEO)-coated separators were prepared by coating PEO onto a microporous polyethylene (PE) separators. Highly conductive electrolytes were prepared by soaking them in an electrolyte solution. The uptake of the electrolyte solution and the ionic conductivity of the PEO-coated separator (PCS) after soaking in LiBF4-ethylene carbonate (EC)/dimethyl carbonate (DMC) were measured to be 76% and 1.0 x 10(-3) S/cm. respectively. With these PCSs, lithium-ion cells composed of mesocarbon microbead (MCMB) anode and LiCoO2 cathode were assembled, and their electrochemical performances were evaluated. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:535 / 538
页数:4
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