Multi-electron redox phenazine for ready-to-charge organic batteries
- Multi-electron redox phenazine for ready-to-charge organic batteries
- 홍지현; 이민아; 이병주; 구교진; 이세찬; 박찬범; 강기석
- Issue Date
- Green chemistry : an international journal and green chemistry resource : GC
- VOL 19, NO 13-2985
- 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.
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