Synthesis and electrochemical performance of Ce0.05SnS2/graphene nanocomposites as anode materials for lithium-ion batteries

Qiufen Wang; Ying Huang; Juan Miao; Wenjing Xu

Synthesis and electrochemical performance of Ce_0.05SnS₂/graphene nanocomposites as anode materials for lithium-ion batteries

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Author(s): Qiufen Wang ^{1, 2} ; Ying Huang ¹ ; Juan Miao ² ; Wenjing Xu ³
- Affiliations: 1: The Key Laboratory of Space Applied Physics and Chemistry for the Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710129, People's Republic of China;
  2: School of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, People's Republic of China;
  3: Jiaozuo Teachers College, Jiaozuo 454000, People's Republic of China
Source: Volume 9, Issue 9, September 2014, p. 605 – 608
DOI: 10.1049/mnl.2014.0225 , Online ISSN 1750-0443

Received 17/05/2014, Accepted 11/08/2014, Revised 03/08/2014, Published 15/09/2014

Ce_0.05SnS₂/graphene (GNS) nanocomposites were synthesised via the hydrothermal method and sintering. The structure and electrochemical performance of the materials were characterised using X-ray diffraction, field emission transmission electron microscopy and electrochemical measurements. The flower-like Ce_0.05SnS₂ particles with a petal size of 50–100 nm were distributed on graphene sheets. The Ce_0.05SnS₂/GNS-2 composites exhibited an initial discharge capacity of 1638.3 mAh g⁻¹ at 0.5 C, a retention capacity of 707 mAh g⁻¹ after 50 cycles, and an improved rate capability because of the support of the nanographene. After their sintering, the Ce_0.05SnS₂/GNS nanocomposites displayed better electrochemical performance than before sintering.

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Synthesis and electrochemical performance of Ce_0.05SnS₂/graphene nanocomposites as anode materials for lithium-ion batteries

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