Development of high-capacity flexible sodium manganese periodate batteries with dual polymer electrolytes

Zhiqian Wang, Emine S. Karaman, Xianyang Meng, Giuseppe Di Benedetto, James L. Zunino, Somenath Mitra

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish (US)
Article number101928
JournalMaterials Today Communications
Volume26
DOIs
StatePublished - Mar 2021

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Materials Chemistry

Keywords

  • Dual electrolyte
  • Flexible battery
  • Nanoparticles
  • Periodate
  • Poly(acrylic acid)

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