Abstract
Herein, a microporous poly(vinylidene fluoride co-hexafluoropropylene)/cellulose/ BaTiO3 membrane with a sponge-like architecture has been prepared by spinning cum immersion precipitation route followed by hydrolysis with lithium hydroxide for the deacetylation of cellulose acetate. The fabricated composite membrane-based LiFePO4|Li cell achieves a high ionic conductivity of 1.36 mS cm−1 at 30 °C. Additionally, the electrochemical system exhibits a good discharge capacity of 150.1 mAh g−1 and excellent cycling stability with a capacity retention of 95% after 200 cycles at a 0.1C rate. The transference number of the system is computed to be 0.51. According to these findings, the proposed gel polymer electrolytes have a great potential for use in lithium-ion batteries.
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