OALib Journal期刊
ISSN: 2333-9721
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改性LiClO_4-(PEO)_(20)电解质锂离子迁移数的测定
, PP. 41-46
Keywords: 高分子电解质,锂离子迁移数
Abstract:
采用交流阻抗和恒电位计时电流法测定了LiClO4·(PEO)20·(PC)12·(EC)12高分子电解质的锂离子迁移数。在非水溶液和高分子电解质中,锂是热力学不稳定的,表面生成一层固体电解质钝化膜,严重地影响了锂离子迁移数的准确测定。本方法避免固体电解质钝化膜的影响,给出正确的锂离子迁移数测定值,实验表明,LiClO4·(PEO)20·(PC)12·(EC)12电解质的电导率为0.8×10-3/cm,锂离子迁移数为0.3。
References
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