Journal
MATERIALS TODAY COMMUNICATIONS
Volume 26, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.mtcomm.2020.101928
Keywords
Flexible battery; Dual electrolyte; Periodate; Nanoparticles; Poly(acrylic acid)
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Funding
- Ida C. Fritts Chair at New Jersey Institute of Technology
- U.S. Army
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The development of a dual-electrolyte, flexible battery based on sodium manganese periodate-zinc system was presented. By optimizing electrolytes and electrode design, the battery performance was enhanced, achieving a higher specific capacity compared to previous flexible batteries.
We present the development of a dual-electrolyte, flexible battery based on sodium manganese periodate-zinc system. H3PO4-KCl quasi-solid dual electrolytes separated by an anion-exchange-membrane maintained the desired pH at electrodes and blocked unwanted ion movements. Poly(acrylic acid) based quasi-solid electrolytes were optimized to fortify the electrodes, increase electrode flexibility, eliminate free-flow liquids, and enhance battery performance. Anode electrolyte pH adjustment enhanced ionic conductivity and reduced zinc corrosion. The nano-grade NaMnIO6 showed a specific capacity of 650 mA h g(-1), approximately 81 % of its theoretical capacity even when cells are bent. The capacity reported here is at least 80 % higher than other flexible battery reported before.
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