Binder-free Ge-three dimensional graphene electrodes for high-rate capacity Li-ion batteries

C. D. Wang; Y. S. Chui; Y. Li; X. F. Chen; W. J. Zhang

doi:10.1063/1.4851955

Author(s)

C. D. Wang
Y. S. Chui
Y. Li
X. F. Chen
W. J. Zhang

Related Research Unit(s)

Centre of Super-Diamond and Advanced Films

Detail(s)

Original language	English
Article number	253903
Journal / Publication	Applied Physics Letters
Volume	103
Issue number	25
Publication status	Published - 16 Dec 2013

Link(s)

DOI	DOI https://doi.org/10.1063/1.4851955 Final Published version
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Attachment(s)	Documents 5858912.pdf Final Published version, 1.45 MB, PDF Publisher's Copyright Statement COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in C. D. Wang, Y. S. Chui, Y. Li, X. F. Chen, and W. J. Zhang , "Binder-free Ge-three dimensional graphene electrodes for high-rate capacity Li-ion batteries", Appl. Phys. Lett. 103, 253903 (2013) and may be found at https://doi.org/10.1063/1.4851955.
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84891479054&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(23cbbc88-4a8c-4f28-b2ba-9d18106f0cd7).html

Abstract

A binder-free, high-rate Ge-three dimensional (3D) graphene composite was synthesized by directly depositing Ge film atop 3D graphene grown by microwave plasma chemical vapor deposition on Ni substrate. The Ge-3D graphene structure demonstrates excellent electrochemical performance as a lithium ion battery (LIB) anode with a reversible capacity of 1140 mAh g^-1 at 1/3C over 100 cycles and 835 mAh g^-1 at 8C after 60 cycles, and significantly a discharge capacity of 186 mAh g^-1 was still achieved at 32C. The high capacity and outstanding stability of the Ge-3D graphene composite propose it as a promising electrode in high-performance thin film LIBs. © 2013 AIP Publishing LLC.