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V2O5/导电聚合物核/壳纳米带阵列在三维石墨泡沫上:用于锂离子电池的高倍率、超稳定和独立式阴极。

A V2O5/conductive-polymer core/shell nanobelt array on three-dimensional graphite foam: a high-rate, ultrastable, and freestanding cathode for lithium-ion batteries.

机构信息

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore.

出版信息

Adv Mater. 2014 Sep 3;26(33):5794-800. doi: 10.1002/adma.201400719. Epub 2014 Jun 2.

Abstract

A thin polymer shell helps V2O5 a lot. Short V2O5 nanobelts are grown directly on 3D graphite foam as a lithium-ion battery (LIB) cathode material. A further coating of a poly(3,4-ethylenedioxythiophene) (PEDOT) thin shell is the key to the high performance. An excellent high-rate capability and ultrastable cycling up to 1000 cycles are demonstrated.

摘要

一层薄薄的聚合物外壳对 V2O5 有很大帮助。V2O5 纳米带短纤维直接生长在 3D 石墨泡沫上,作为锂离子电池(LIB)的阴极材料。进一步涂覆一层聚(3,4-乙撑二氧噻吩)(PEDOT)的薄壳是实现高性能的关键。该材料表现出优异的高倍率性能和超稳定的循环性能,循环 1000 次后仍保持稳定。

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