Metal-Free, Solid-State, Paperlike Rechargeable Batteries Consisting of Redox-Active Polyethers

Kan Hatakeyama-Sato, Toshiki Tezuka, Rieka Ichinoi, Satoshi Matsumono, Karin Sadakuni, Kenichi Oyaizu

Research output: Contribution to journalArticle

Abstract

Metal-free and totally organic based batteries were fabricated from functional polyethers. Aliphatic polyethers, in which 2,2,6,6-tetramethylpiperidin-1-oxyl and viologen were introduced with high density, were used as the cathode and anode active materials, respectively. By stacking nanosheets of the polymers and an imidazolium-substituted polyether as the electrolyte, a solid-state cell only 2 μm thick was made. The anion-type rocking-chair cell showed reversible charge/discharge even at a high rate of 5 C without adding any solvents or plasticizers. Although the unsealed cell was measured under ambient conditions, no significant side reactions (including self-discharging and capacity decay) occurred, whereas conventional electrodes are sensitive to air and water in the charged state. The intrinsic plasticity of the polyethers is also compatible with making free-form, 3D-printable batteries.

Original languageEnglish
Pages (from-to)2443-2448
Number of pages6
JournalChemSusChem
Volume13
Issue number9
DOIs
Publication statusPublished - 2020 May 8

Keywords

  • electrochemistry
  • flexible devices
  • metal-free batteries
  • polymers
  • solid-state batteries

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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