High capacity and cycling stability of poly(diaminoanthraquinone) as an organic cathode for rechargeable lithium batteries |
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Authors: | Yi Fei Shen Ding Ding Yuan Xin Ping Ai Han Xi Yang Min Zhou |
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Affiliation: | College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, China |
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Abstract: | Poly(1,5‐diaminoanthraquinone) is synthesized by oxidative polymerization of diaminoanthraquinone monomers and investigated as an organic host for Li‐storage reaction. Benefiting from its high density of redox‐active, Li+‐associable benzoquinone groups attached to conducting polyaniline backbones, this polymer undergoes its cathodic reaction predominately through Li+‐insertion/extraction processes, delivering a very high reversible capacity of 285 mAh g?1. In addition, the PDAQ polymer cathode exhibits an excellent rate capability (125 mAh g?1 at 800 mA g?1) and a considerable cyclability with a capacity retention of ~160 mAh g?1 over 200 cycles, possibly serving as a sustainable, high capacity Li+ host cathode for Li‐ion batteries. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2015 , 53, 235–238 |
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Keywords: | high capacity high performance polymers nanoparticles organic cathode poly(1,5‐diaminoanthraquinone) rechargeable lithium batteries redox polymer redox‐active polymers |
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