文献类型：期刊文献

英文题名：Effects of the porous structure on conductivity of nanocomposite polymer electrolyte for lithium ion batteries

作者：Li, Z. H.[1,2,3,4];Zhang, H. P.[1,2];Zhang, P.[1,2];Li, G. C.[1,2];Wu, Y. P.[1,2];Zhou, X. D.[4]

机构：[1]Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China;[2]Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China;[3]Xiangtan Univ, Coll Chem, Xiangtan 411105, Peoples R China;[4]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2008

卷号：322

期号：2

起止页码：416

外文期刊名：JOURNAL OF MEMBRANE SCIENCE

收录：;EI(收录号：20083111429498);WOS:【SCI-EXPANDED(收录号:WOS:000258976800019)】；

基金：Financial support from the National Basic Research Program of China (973 Program No: 2007CB209700), Chinese Postdoctoral Science Fund (20060400618), Natural Science Foundation of Hunan Province (06JJ4093), the Open Fund from State Key Laboratory of Chemical Engineering in East China University of Science and Technology (HF06008), and the Doctoral Starting Fund from Xiangtan University (05QDZ18) is greatly appreciated.

语种：英文

外文关键词：porous polymer membrane; lithium ion battery; ionic conductivity; polymer electrolyte; in situ hydrolysis

摘要：A kind of porous nanocomposite polymer membranes (NCPMs) based on poly(vinylidene difluoride-co-hexafluoropropylene) (P(VdF-HFP)) incorporated with different amounts of TiO2 nanoparticles from in situ hydrolysis of Ti(OC4H9)(4) was prepared by a non-solvent induced phase separation (NIPS) technology. The SEM micrographs reveal that a porous structure exists in the NCPMs, which changes with the incorporated amount of TiO2. The NCPMs incorporated with 9.0wt.% of mass fraction of TiO2 possess the highest porosity, 67.3%, and appear as flexile fracture with an elongation ratio, 74.4%. At this content, the ionic conductivity of the NCPE is up to 0.94 x 10(-3) S cm(-1) at room temperature and the activation energy for ions transport reaches the lowest, 18.71 kJ mol(-1). It is of great potential application in lithium ion batteries. (C) 2008 Elsevier B.V. All rights reserved.