We studied the system in order to determine the stability of the polymer electrolyte when applied to various electrode pairs. We investigated the thermal stability of the polymer electrolyte in contact with lithium metal and the cathode materials, amorphous , , , and . The properties of the electrolyte were measured by complex impedance analysis and TG‐DTA. It was demonstrated that the electrolyte was stable with lithium metal up to 220°C, and also was stable with the above mentioned cathode materials at temperatures below about 160°C. The decomposition rate of the polymer electrolyte was faster in air than in Ar gas.
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Shodai et al. (1994) studied this question.
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