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首次以“择形”分子筛ZSM5为填料,通过溶液浇铸法制得PEO-LiClO_4-ZSM5全固态复合聚合物电解质(CPE)膜.交流阻抗实验表明ZSM5的引入可以显著地提高CPE的离子电导率.利用交流阻抗-稳态电流相结合的方法对CPE的锂离子迁移数进行了测定,结果表明掺入ZSM5后锂离子迁移数明显升高.ZSM5的含量为10%时,CPE同时具有最高离子电导率1.4×10-5S?cm-1(25℃)和最大锂离子迁移数0.353.PEO-LiClO_4-ZSM5/Li电极界面稳定性实验表明PEO-LiClO_4-ZSM5复合聚合物电解质在全固态锂离子电池领域具有良好的应用前景.
For the first time, PEO-LiClO 4 -ZSM5 solid polymer composite polymer electrolyte (CPE) membrane was prepared by solution cast method using “shape selective” zeolite ZSM5 as the filler.The AC impedance experiments show that the introduction of ZSM5 can significantly improve the ionic conductivity of CPE. AC impedance-steady state current method was used to measure the number of lithium ion transport in CPE.The results showed that the number of lithium ion migration was significantly increased after ZSM5 was incorporated.When the content of ZSM5 was 10%, CPE had the highest ionic conductivity 1.4 × 10-5S · cm-1 (25 ℃) and the maximum number of lithium ion migration is 0.353. The experimental results of PEO-LiClO4-ZSM5 / Li electrode interface stability show that PEO-LiClO4-ZSM5 composite polymer electrolyte in the field of all solid state lithium-ion battery Has good application prospects.