Performances of lithium/gel electrolyte/polypyrrole secondary batteries

Poly(methylmethacrylate) (PMMA)- and poly(acrylonitrile) (PAN)-based gel electrolytes were applied to Li/polypyrrole (PPy) battery and its performance was investigated. These batteries showed excellent performance with 3 V output voltage and 90–100% coulombic efficiency. Using chemically more stable PMMA gel electrolyte, long charge/discharge cycle life more than 8000 cycles at 0.1 mA cm−2 was obtained.