All-polythiophene rechargeable batteries

• Batteries with the anode and cathode made of conducting polymer have been tested.
• Batteries made of alternated layers of two organic polymers show the highest performance.
• Organic batteries are rechargeable and exhibit excellent cyclability and stability.
• Multilayers of conducting polymers show are useful for both capacitors and batteries.

All-conducting polymer batteries, in which both the anode and cathode consist of films made of perchlorate-doped pure poly(3,4-ethylenedioxythiophene) (PEDOT), alternated layers of PEDOT and poly(N-methylpyrrole) or PEDOT/clay nanocomposites, have been fabricated. Batteries, which have been used as power source for a LED bulb, are rechargeable and exhibit excellent charge/discharge cyclability and stability. The organic devices prepared using PEDOT and multilayered films have been found to be promising platforms to achieve metal-free power sources. Thus, these materials, in particular the multilayered films, show a dual behavior being useful for the fabrication of both capacitors and batteries.

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