以溶液浇铸法合成了聚环氧乙烷-Li 盐复合物LiClO_4·(PEO)_n 和LiCF_3SO_3·(PEO)_n。用交流阻抗法、线性极化技术和电位扫描伏安法研究材料的电化学性能.并以热重分析法(TGA)和热变形性能(TMA)测定热化学稳定性和耐热力学性能。对于LiClO_4·(PEO)_n 体系(n=9—23),σ_(45∶C)>10~(-5)S/cm;σ_(65∶C)>10~(-4)S/cm;LiCF_3SO_4·(PEO)_n 体系(n=9—27),σ_(65∶C)>10~(-5)S/cm,σ_(100∶C)>10~(-4)S/cm.分解电压E_d>4.5V,热分解温度T_d>250℃。这类材料可以作为80—120℃工作的全固态高能Li 蓄电池的固体电解质材料。
The complex electrolyte films of LiClO_4·(PEO)_n and LiCF_3SO_3·(PEO)_n were prepared by casting prccess.The AC cordtctivity (σ),ex-change current density at inferfaces (i_o),thermal and electrochemical stabilityof the films were studied.The conductivity
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