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运用 IR、DSC和电化学测试等手段 ,对 PVB+L i Cl O4 +PC组成的聚合物电解质的化学和电化学稳定性作了初步的研究 .本实验制备的聚合物电解质在 2 50℃以下的温度范围内 ,具有较好的热稳定性 .由 Pt/PVB+L i Cl O4 +PC/L i组成的测试电池的开路电压为 2 .3V(vs.L i+ /L i) ,并随时间延长而减小 .聚合物电解质阳极过程的稳定性受到阴离子氧化电位的限制 ,在 0～ 4 .2 V(vs.L i+ /L i)之间 ,保持较好的电化学稳定性 .
The chemical and electrochemical stability of the polymer electrolyte composed of PVB + LiClO4 + PC has been studied by means of IR, DSC and electrochemical tests, etc. The polymer electrolyte prepared in this experiment is below 250 ℃ , The open cell voltage of the test cell consisting of Pt / PVB + LiClO4 + PC / Li is 2.3V (vs. Li + / Li) The stability of the polymer electrolyte anode process is limited by the anion oxidation potential, maintaining good electrochemical stability between 0 and 4.2 V (vs. L i + / L i).