电解质
离子电导率
电化学
材料科学
共晶体系
快离子导体
化学工程
离子液体
溶剂
电导率
固态
聚合物电解质
酰胺
聚合物
复合数
化学
合金
有机化学
电极
复合材料
物理化学
催化作用
工程类
作者
Bjorn Joos,Jordi Volders,Ricardo Ribeiro da Cruz,Evelien Baeten,Mohammadhosein Safari,Marlies K. Van Bael,An Hardy
标识
DOI:10.1021/acs.chemmater.9b05090
摘要
This work introduces the polymeric eutectogel (P-ETG) solid composite electrolytes (SCEs) developed from the encapsulation of a liquid deep eutectic solvent (DES) electrolyte within a solid amide-based polymer backbone. Compared to their silica-based eutectogel counterparts, the P-ETGs can be efficiently processed by means of UV curing from liquid precursors and possess superior mechanical flexibility. The P-ETGs are characterized by a good electrochemical stability (up to 4.5 V vs Li) and high ionic conductivity up to 0.78 mS cm–1. The potentiality of P-ETG for application in Li/Li-ion batteries is substantiated by stable cycling results of Li/P-ETG/LiFePO4 cells over 100 cycles at C/5 to 1C rates. The fire-hazards analysis reveals the improved safety of P-ETGs in contrast to the conventional liquid electrolytes (1 M LiPF6 in EC/DEC).
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