Preparation and properties of poly(ethylene oxide) gel filled polypropylene separators and their corresponding gel polymer electrolytes for Li-ion batteries
Preparation and properties of poly(ethylene oxide) gel filled polypropylene separators and their corresponding gel polymer electrolytes for Li-ion batteries
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锂离子电池用聚环氧乙烷凝胶填充聚丙烯隔膜及其相应凝胶聚合物电解质的制备及性能
DOI：
10.1016/j.electacta.2010.12.010
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发表时间：
2011-02-15
影响因子：
6.6
通讯作者：
Zhu, Li-Ping
中科院分区：
文献类型：
--
作者：
Li, Hao;Ma, Xiao-Ting;Zhu, Li-Ping
以聚乙二醇甲基醚丙烯酸酯（PEGMEA）和聚乙二醇二丙烯酸酯（PEGDA）为凝胶组分，通过热交联法制备了聚环氧乙烷（PEO）填充聚丙烯隔膜（GFPSs）。用DSC、SEM、接触角和电化学方法对GFPS及其凝胶聚合物电解质（GPE）的本征性质进行了表征。结果表明，GPE吸收液体电解质的稳定性明显提高。对于由填充聚醚含量为14.3wt%的GFPS制备的GPE，离子电导率可以达到1.12 × 10（-3）S cm（-1），而电化学稳定窗口达到5.0V（vs. Li/Li+）。这些初步结果表明，这种简单的方法制备GPE在锂离子电池中的实际应用前景广阔。爱思唯尔有限公司出版
Poly(ethylene oxide) (PEO) filled polypropylene separators (GFPSs) are designed by means of thermal cross-linking of entrapped poly(ethylene glycol) methyl ether acrylate (PEGMEA) and poly(ethylene glycol) diacrylate (PEGDA) as gel constituents. The intrinsic properties of GFPS and their corresponding gel polymer electrolytes (GPE) are characterized by DSC, SEM, contact angle and electrochemical methods. It is found the stability of liquid electrolyte uptake in GPE could be improved obviously. For the GPE prepared from GFPS with filled polyether content of 14.3 wt%, the ionic conductivity could reach 1.12 x 10(-3) S cm(-1) while the electrochemically stable window reach 5.0 V (vs. Li/Li+). These primary results show great promise of this simple method to prepare GPE for practical application in lithium ion batteries. Published by Elsevier Ltd.