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One-step synthesis of novel poly(terephthalate-alt-benzoquinone) with high specific capacity as a stable organic cathode for Li-ion batteries

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Abstract

A novel polymer (PTPBQ) with alternating terephthalate (TP) and benzoquinone (BQ) moieties is synthesized for the first time as an organic cathode for Li-ion batteries. Both TP and BQ moieties probably could remain electrochemically active and thus may make PTPBQ realize a maximum 4-electron redox behaviour and a theoretical specific capacity of up to ∼390 mAh g−1. In its practical application, Li-ion half cells based on PTPBQ can realize discharge capacities of ∼110 mAh g−1 on average for 400 cycles (40 mA g−1, 0.1C), and ∼180 mAh g−1 on average for 200 cycles (80 mA g−1, 0.2C) when the carbon additive is augmented to 40 wt%.

Graphical abstract: One-step synthesis of novel poly(terephthalate-alt-benzoquinone) with high specific capacity as a stable organic cathode for Li-ion batteries

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Publication details

The article was received on 02 Sep 2017, accepted on 18 Oct 2017 and first published on 18 Oct 2017


Article type: Paper
DOI: 10.1039/C7NJ03315J
Citation: New J. Chem., 2017, Advance Article
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    One-step synthesis of novel poly(terephthalate-alt-benzoquinone) with high specific capacity as a stable organic cathode for Li-ion batteries

    C. Li, H. Tan, J. Pei, C. Wang, C. Fan, F. Huang, B. Cao, M. Hao, Y. Li, Z. Wang and J. Li, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ03315J

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