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Issue 23, 2017
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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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Article information


Submitted
02 Sep 2017
Accepted
18 Oct 2017
First published
18 Oct 2017

New J. Chem., 2017,41, 14539-14544
Article type
Paper

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, 41, 14539
DOI: 10.1039/C7NJ03315J

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