Hatakeyama-Sato K, Tezuka T, Ichinoi R, Matsumono S, Sadakuni K, Oyaizu K. Metal-Free, Solid-State, Paperlike Rechargeable Batteries Consisting of Redox-Active Polyethers.
CHEMSUSCHEM 2020;
13:2443-2448. [PMID:
31883311 DOI:
10.1002/cssc.201903175]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/27/2019] [Indexed: 06/10/2023]
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.
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