Hollow core–shell structured porous Si–C nanocomposites for Li-ion battery anodes

Xiaolin Li; Praveen Meduri; Xilin Chen; Wen Qi; Mark H. Engelhard; Wu Xu; Fei Ding; Jie Xiao; Wei Wang; Chongmin Wang; Ji-Guang Zhang; Jun Liu

doi:10.1039/C2JM31286G

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Journal of Materials Chemistry

Issue 22, 2012

Journal of Materials Chemistry was published between 1991 and 2012. From issue 1, 2013, it was replaced by three new journals: Journal of Materials Chemistry A, B and C

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Hollow core–shell structured porous Si–C nanocomposites for Li-ion battery anodes

Xiaolin Li,*^a Praveen Meduri,^a Xilin Chen,^a Wen Qi,^a^b Mark H. Engelhard,^a Wu Xu,^a Fei Ding,^a^c Jie Xiao,^a Wei Wang,^a Chongmin Wang,^a Ji-Guang Zhang*^a and Jun Liu*^a

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Corresponding authors

Pacific Northwest National Laboratory, Richland, USA
E-mail: Xiaolin.li@pnl.gov ;
Fax: +1 509-375-3864 ;
Tel: +1 509-375-4443

Department of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

National Key Lab of Power Sources, Tianjin Institute of Power Sources, Tianjin 300381, China

J. Mater. Chem., 2012,22, 11014-11017

DOI: 10.1039/C2JM31286G
Received 01 Mar 2012, Accepted 04 Apr 2012
First published online 05 Apr 2012

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Hollow core–shell structured porous Si–C nanocomposites with void space up to tens of nanometres are designed to accommodate the volume expansion during lithiation for high-performance Li-ion battery anodes. An initial capacity of [similar] 760 mA h g⁻¹ after formation cycles (based on the entire electrode weight) with 86% capacity retention over 100 cycles is achieved at a current density of 1 A g⁻¹. Good rate performance is also demonstrated.

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