AMBIENT-TEMPERATURE, RECHARGEABLE, ALL-SOLID LITHIUM POLYPYRROLE POLYMER BATTERY

An ambient-temperature, all-solid lithium battery was fabricated by co mbining a poly(acrylonitrile), PAN-based polymer electrolyte with a li thium metal anode and a polypyrrole, PPy, film cathode. The influence of the morphology of the PPy film cathode on the battery performance w as investigated. The results show that the electrode morphology does n ot considerably influence the charge-discharge cycling response and th at the solid-state, Li/PPy battery exhibits high coulombic efficiency, approaching 90%. However, at the present time, the battery has a poor shelf life, and work is in progress for overcoming this drawback.