【摘要】 研究了以聚环氧乙烷(PEO)为基体,BaTiO3为填充剂,Li(C2F5SO2)2N作为锂盐的聚合物锂离子电池电解质。利用循环伏安法测定了铝的溶解电位,80℃时,铝集流体在PEOx-Li(C2F5SO2)2N体系中溶解电位可达4.1 V(vs.Li/Li+)。采用交流阻抗技术测试了其电导率和界面电阻,当x=8时,体系的电导率最大,80℃时为1.65×10-3S/cm,25℃时为1.5×10-5S/cm。更多还原

【Abstract】 Polyethylene oxide（PEO） based polymer electrolytes with BaTiO₃ as filler and Li（C₂F₅SO₂）₂N as lithium salt were examined in polymer Li-ion batteries.The aluminum dissolution potential was tested by cyclic voltammetry.The aluminum dissolution potential in PEO_x-Li（C₂F₅SO₂）₂N was estimated to be 4.1 V（vs.Li/Li⁺） at 80 ℃.The conductivity and interfacial resistance were tested by alternating current impedance techniques.The highest conductivity was observed when x=8,it was 1.65×10^-3 S/cm at 80 ℃ and 1.5×10^-5 S/cm at 25 ℃.更多还原