Title

Flexible free-standing graphene-silicon composite film for lithium-ion batteries

RIS ID

34344

Publication Details

Wang, J, Zhong, C, Chou, S & Liu, HK (2010), Flexible free-standing graphene-silicon composite film for lithium-ion batteries, Electrochemistry Communications, 12(11), pp. 1467-1470.

Abstract

Flexible, free-standing, paper-like, graphene-silicon composite materials have been synthesized by a simple, one-step, in-situ filtration method. The Si nanoparticles are highly encapsulated in a graphene nanosheet matrix. The electrochemical results show that graphene-Si composite film has much higher discharge capacity beyond 100 cycles (708 mAh g− 1) than that of the cell with pure graphene (304 mAh g− 1). The graphene functions as a flexible mechanical support for strain release, offering an efficient electrically conducting channel, while the nanosized silicon provides the high capacity.

Grant Number

ARC/DP0987805

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.elecom.2010.08.008