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Author:

Zhang, Jiwei (Zhang, Jiwei.) | Zhang, Mingmei (Zhang, Mingmei.) | Zhang, Lijuan (Zhang, Lijuan.)

Indexed by:

EI Scopus SCIE

Abstract:

Three-dimensional porous Cu/Cu2O, CuO, CuO/NiO were prepared on Ni foam by a simple two step method which consist of a replacement reaction and subsequent thermal treatment method at various temperature. The morphology and microstructure of the samples were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electrochemical properties of the samples were evaluated by galvanostatic discharge-charge cycling, cyclic voltammetry and impedance spectral measurements on cells with lithium discs as counter electrode and reference electrode. Compared to Cu/Cu2O and CuO/NiO, the sample of CuO obtained at 400 degrees C exhibited the best electrochemical performance which delivered a reversible capacity of 605.3 mAh g(-1) (89.8% of the theoretical capacity) after 50 cycles at the current density of 100 mA g(-1), without noticeable capacity fading. The excellent electrochemical performance of porous CuO can be attributed to the three-dimensional porous structure, which cannot only provide large surface area but also facilitate Li+ and electron transfer, and the strong connection between active materials and Ni foam can promote better intrinsic kinetics. (c) 2013 Elsevier Ltd. All rights reserved.

Keyword:

Metal oxides Replacement reaction Anode Rate performance Lithium ion battery

Author Community:

  • [ 1 ] [Zhang, Jiwei]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Zhang, Mingmei]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Lijuan]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Zhang, Lijuan]Beijing Univ Technol, Coll Environm & Energy Engn, Pingleyuan 100, Beijing 100124, Peoples R China

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Source :

ELECTROCHIMICA ACTA

ISSN: 0013-4686

Year: 2013

Volume: 105

Page: 282-288

6 . 6 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 18

SCOPUS Cited Count: 18

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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