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Veerababu, Medabalmi
분자활성 촉매반응 연구단
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Naphthalene diimide as a two-electron anolyte for aqueous and neutral pH redox flow batteries

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Title
Naphthalene diimide as a two-electron anolyte for aqueous and neutral pH redox flow batteries
Author(s)
Veerababu Medabalmi; Mahesh Sundararajan; Vikram Singh; Mu-Hyun Baik; Hye Ryung Byon
Subject
STORAGE, ; SAFE
Publication Date
2020-06
Journal
JOURNAL OF MATERIALS CHEMISTRY A, v.8, no.22, pp.11218 - 11223
Publisher
ROYAL SOC CHEMISTRY
Abstract
© The Royal Society of Chemistry 2020.Developing organic materials that show stable and highly reversible redox-activity is a key challenge for achieving cost-effective and sustainable aqueous redox flow batteries (RFBs) for practical energy storage applications. We report a water-soluble naphthalene diimide (NDI) derivative using carboxylate groups, which was tested and established as a new class of versatile anolytes capable of storing two electrons in a single molecule in aqueous and neutral pH RFBs. The potassium salt ofN,N′-bis(glycinyl)naphthalene diimide [K2-BNDI] showed reversible and stable two-electron reductions accompanied by ion- pairing. A prototype aqueous RFB consisting of [K2-BNDI] and 4-OH-TEMPO was constructed and showed excellent cyclability, high energy and voltage efficiencies. This study suggests a versatile way of designing new anolytes inspired by organic semiconductors that operate in a multi-electron redox mode
URI
https://pr.ibs.re.kr/handle/8788114/7832
DOI
10.1039/d0ta01160f
ISSN
2050-7488
Appears in Collections:
Center for Catalytic Hydrocarbon Functionalizations(분자활성 촉매반응 연구단) > 1. Journal Papers (저널논문)
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