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An All-Organic Proton Battery.

Rikard Emanuelsson1, Mia Sterby1, Maria Strømme1

  • 1Nanotechnology and Functional Materials, Department of Engineering Sciences, The Ångström Laboratory, Uppsala University , Box 534, SE-751 21 Uppsala, Sweden.

Journal of the American Chemical Society
|March 16, 2017
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Summary
This summary is machine-generated.

This study introduces an all-organic proton battery using functionalized conducting polymers, eliminating the need for metals and conductive additives. This breakthrough paves the way for sustainable plastic batteries with improved cycling stability and reversibility.

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Area of Science:

  • Electrochemistry
  • Materials Science
  • Organic Electronics

Background:

  • Organic rechargeable batteries are a future technology, but earlier designs required conductive additives and metal-ion electrolytes.
  • Developing metal-free, additive-free organic batteries is crucial for sustainable energy storage.

Purpose of the Study:

  • To demonstrate a proof-of-concept for an all-organic proton battery.
  • To investigate the use of functionalized conducting polymers as electrode materials.
  • To eliminate the need for conductive additives and metal-based electrolytes.

Main Methods:

  • Utilized conducting poly(3,4-ethylenedioxythiophene) (PEDOT) functionalized with anthraquinone (PEDOT-AQ) and benzonquinone (PEDOT-BQ) as negative and positive electrodes, respectively.
  • Employed a proton donor and acceptor slurry electrolyte.
  • Tuned redox reaction potentials using strong proton donors to match PEDOT conductivity.

Main Results:

  • Achieved specific capacities of 103 mAh g⁻¹ for PEDOT-AQ and 120 mAh g⁻¹ for PEDOT-BQ.
  • Demonstrated an average cell potential of 0.5 V.
  • Showcased excellent reversibility (>1000 cycles) for PEDOT-AQ and identified PEDOT-BQ as key to cycling stability.

Conclusions:

  • All-organic proton batteries are feasible without conductive additives or metals.
  • Functionalized PEDOT materials offer promising performance for organic batteries.
  • Further research can address challenges and opportunities for developing practical plastic batteries.