Polynitrosoarene Radical as an Efficient Cathode Material for Lithium-Ion Batteries

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Detail(s)

Original languageEnglish
Pages (from-to)9431-9438
Journal / PublicationACS Applied Materials & Interfaces
Volume15
Issue number7
Online published8 Feb 2023
Publication statusPublished - 22 Feb 2023

Abstract

Organic radical batteries (ORBs) with radical-branched polymers as cathode materials represent a valuable alternative to meet the continuously increasing demand on energy storage. However, the low theoretical capacities of current radical-contained compounds strongly hamper their practical applications. To address this issue, a chemically robust polynitrosoarene (tris(4-nitrosophenyl)amine) with a pronounced radical property is rationally designed as an efficient cathode for ORBs. Its unique multi-nitroso structure displays remarkably reversible charge/discharge capability and a superior capacity up to 300 mA h g-1 (93% theoretical capacity) after 100 cycles at 100 mA g-1 within a broad potential window of 1.3-4.3 V (vs Li+/Li). Moreover, the ultra-long cycle life is also achieved at 1000 mA g-1 with 85% preservation of the capacity after 1000 cycles, making it the best-reported organic radical cathode material for lithium-ion batteries. © 2023 American Chemical Society.

Research Area(s)

  • bipolar cathode, lithium-ion batteries (LIBs), nitroso, organic radical, organic radical batteries (ORBs)

Citation Format(s)