Abstract
A polyaniline (PANI)/multiwalled carbon nanotube (CNT) composite was synthesized by in situ chemical polymerization. The PANI/CNT composite was used as an active cathode material in lithium metal-polymer cells assembled with ionic liquid (IL) electrolyte. The IL-based electrolyte was composed of 1-ethyl-3-methylimidazolium tetrafluoroborate and vinylene carbonate (VC) as an additive, together with . Porous poly(vinylidene-co-hexafluoropropylene) [P(VdF-co-HFP)] film was used as a polymer membrane for assembling the cell. Electrochemical performance of the Li/IL/PANI-CNT cells was evaluated by cyclic voltammetry, ac impedance measurements, and constant-current charge/discharge cycling. Lithium metal-polymer cells assembled with the IL electrolyte showed good cyclability with a maximum discharge capacity of and good high-rate performance.
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