【摘 要】
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Organic materials with redox-active centers are regarded as promising candidates for rechargeable batteries in recent years for their light weight, low cost, en
【机 构】
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Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conv
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Organic materials with redox-active centers are regarded as promising candidates for rechargeable batteries in recent years for their light weight, low cost, environmental friendliness and structural diversity [1-4].Organic materials, such as conducting polymers (polyacetylene, polypyrrole, polyaniline, etc.) [5], conjugated carbonyl compounds (quinone compounds, imides, etc.)[6-9] and nitroxide radical (N-O.) [10,11] compounds have been attempted as cathode materials in lithium-ion batteries (LIBs).Due to the good chemical stability, high operation voltage, high rate capability and small structure changes, the N-O.materials have attracted tremendous attention since 2002 [12-15].The N-O.generally undergoes two-electron redox reactions, which can be oxidized to oxoammonium (p-type reaction) and reduced to aminoxy (n-type reaction).However, the n-type reaction is irreversible for most of N-O.compounds and realizing the reversibility of the n-type reaction of TEMPO will promote the energy density.
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