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The rechargeable all-plastic battery was fabricated using the (CH) x film as the electrode active material and PVDF·LiClO4·PC (LiClO4/PC in polyvinylidene fluoride (PVDF)) film as the electrolyte. (CH) x /PVDF·LiClO4·PC/(CH) x battery exhibited an open-circuit voltage of 3.4 V and an initial short-circuit current of 10 mA (both electrodes; ca. 8 mg, doping level y=0.004). The maximum power density for this all-plastic battery was 1.1 kW/kg and an energy density of 6.5 Wh/kg (doping level y=0.004, weight of (CH) x electrodes; ca. 8 mg). This battery was investigated for 50 charge-discharge cycles, although doping levels were shallow (y=0.001). The coulombic efficiency was 53%.