Journal
GREEN CHEMISTRY
Volume 19, Issue 13, Pages 2980-2985Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7gc00849j
Keywords
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Funding
- National Research Foundation via the Creative Research Initiative Center, Republic of Korea [NRF-2015R1A3A2066191]
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2015R1A2A1A10055991]
- Creative Materials Discovery Program through the National Research Foundation of Korea (NRF) - the Ministry of Science, ICT and Future Planning [2016952988]
- National Research Foundation of Korea [2015R1A3A2066191, 2015R1A2A1A10055991] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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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