Skip to main content

A unique sandwich-structured C/Ge/graphene nanocomposite as an anode material for high power lithium ion batteries

Journal Article


Download full-text (Open Access)

Abstract


  • A unique sandwich-structured C/Ge/graphene composite with germanium nanoparticles trapped between graphene sheets is prepared by a microwave-assisted solvothermal reaction followed by carbon coating and thermal reduction. The graphene sheets are found to be effective in hindering the growth and aggregation of GeO2 nanoparticles. More importantly, the graphene sheets, coupled with the carbon coating, can buffer the volume changes of germanium in electrochemical lithium reactions. The unique sandwich structure features a highly conductive network of carbon, which can improve both the conductivity and the structural stability of the electrode material, and exemplifies a promising strategy for the development of new high performance electrode materials for lithium ion batteries. © 2013 The Royal Society of Chemistry.

Publication Date


  • 2013

Citation


  • Li, D., Seng, K. Hau., Shi, D., Chen, Z., Liu, H. K. & Guo, Z. (2013). A unique sandwich-structured C/Ge/graphene nanocomposite as an anode material for high power lithium ion batteries. Journal of Materials Chemistry A, 1 (45), 14115-14121.

Scopus Eid


  • 2-s2.0-84886814368

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2487&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1478

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 14115

End Page


  • 14121

Volume


  • 1

Issue


  • 45

Place Of Publication


  • United Kingdom

Abstract


  • A unique sandwich-structured C/Ge/graphene composite with germanium nanoparticles trapped between graphene sheets is prepared by a microwave-assisted solvothermal reaction followed by carbon coating and thermal reduction. The graphene sheets are found to be effective in hindering the growth and aggregation of GeO2 nanoparticles. More importantly, the graphene sheets, coupled with the carbon coating, can buffer the volume changes of germanium in electrochemical lithium reactions. The unique sandwich structure features a highly conductive network of carbon, which can improve both the conductivity and the structural stability of the electrode material, and exemplifies a promising strategy for the development of new high performance electrode materials for lithium ion batteries. © 2013 The Royal Society of Chemistry.

Publication Date


  • 2013

Citation


  • Li, D., Seng, K. Hau., Shi, D., Chen, Z., Liu, H. K. & Guo, Z. (2013). A unique sandwich-structured C/Ge/graphene nanocomposite as an anode material for high power lithium ion batteries. Journal of Materials Chemistry A, 1 (45), 14115-14121.

Scopus Eid


  • 2-s2.0-84886814368

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2487&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1478

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 14115

End Page


  • 14121

Volume


  • 1

Issue


  • 45

Place Of Publication


  • United Kingdom