Smart construction of three-dimensional hierarchical tubular transition metal oxide core/shell heterostructures with high-capacity and long-cycle-life lithium storage

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jiexi Wang
  • Qiaobao Zhang
  • Xinhai Li
  • Bao Zhang
  • Liqiang Mai

Detail(s)

Original languageEnglish
Pages (from-to)437-446
Journal / PublicationNano Energy
Volume12
Online published9 Jan 2015
Publication statusPublished - Mar 2015

Abstract

In order to realize new high performance electrodes for lithium-ion batteries (LIBs), the careful design of nanoarchitectures and effective hybridization of active materials are research areas of great interest. Here, we present a simple and highly controllable two-step fabrication technique, followed by a heat treatment process, for the large-scale in situ growth of 3D hierarchical tubular CuO/other metal oxides core/shell heterostructure arrays that are directly grown on Cu foam. As a proof-of-concept demonstration of the application of such 3D hierarchical tubular heterostructure arrays, the prepared tubular CuO/CoO core/shell arrays are investigated as binder- and conductive agent-free anodes for LIBs, exhibiting an impressive capacity of 1364mAhg-1 at a current density of 100mAg-1 after 50 cycles and maintaining 1140mAhg-1 after 1000 cycles at 1.0Ag-1. This excellent electrochemical performance can be attributed to the unique hollow porous architecture consisting of 3D hierarchical tubular core/shell architectures, and the effective hybridization of two electrochemically cohesive active materials. Our work shows that this material has great potential for high-energy and high-power energy storage applications.

Research Area(s)

  • Anode, Lithium ion battery, Nanomaterial, Transition metal oxide, Tubular structure

Citation Format(s)

Smart construction of three-dimensional hierarchical tubular transition metal oxide core/shell heterostructures with high-capacity and long-cycle-life lithium storage. / Wang, Jiexi; Zhang, Qiaobao; Li, Xinhai; Zhang, Bao; Mai, Liqiang; Zhang, Kaili.

In: Nano Energy, Vol. 12, 03.2015, p. 437-446.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review