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

Authors

Jiazhao Wang, University of WollongongFollow
Chao Zhong, University of WollongongFollow
Shulei Chou, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow

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

Additional Grant Number

http://purl.org/au-research/grants/ARC/DP0987805