Plastic power sources

Lithium ion polymer batteries and laminated solid-state redox supercapacito rs, formed by placing a highly conducting gel-type membrane electrolyte bet ween a graphite film and a composite cathode film and between a poly(pyrrol e)-poly(aniline) electrode combination, respectively, have been fabricated and tested. The preliminary results are encouraging in suggesting that thes e plastic power sources may be particularly advantageous for mobile electro nic products and for zero emission electric vehicles.