Issue 13, 2017

Multi-electron redox phenazine for ready-to-charge organic batteries

Abstract

Organic redox compounds represent an emerging class of cathode materials in rechargeable batteries for low-cost and sustainable energy storage. However, the low operating voltage (<3 V) and necessity of using lithium-containing anodes have significantly limited their practical applicability to battery systems. Here, we introduce a new class of p-type organic redox centers based on N,N′-substituted phenazine (NSPZ) to build ready-to-charge organic batteries. In the absence of lithium-containing anodes, NSPZ cathodes facilitate reversible two-electron transfer at 3.7 and 3.1 V accompanying anion association, which results in a specific energy of 622 Wh kg−1 in dual-ion batteries.

Graphical abstract: Multi-electron redox phenazine for ready-to-charge organic batteries

Supplementary files

Article information

Article type
Paper
Submitted
20 Mar 2017
Accepted
08 May 2017
First published
08 May 2017

Green Chem., 2017,19, 2980-2985

Multi-electron redox phenazine for ready-to-charge organic batteries

M. Lee, J. Hong, B. Lee, K. Ku, S. Lee, C. B. Park and K. Kang, Green Chem., 2017, 19, 2980 DOI: 10.1039/C7GC00849J

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