Micro/nano-structured SnS2 negative electrodes using chitosan derivatives as water-soluble binders for Li-ion batteries

Micro/nano-structured SnS 2 was prepared by a hydrothermal method using biomolecular l -cysteine and SnCl 4 ·5H 2 O as sulfur source and tin source, respectively. The electrochemical performances of SnS 2 electrodes were investigated using water-soluble binders of carboxymethyl chitosan (C-chitosan)...

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Bibliographic Details
Published in:Journal of applied electrochemistry 2014, Vol.44 (1), p.45-51
Main Authors: Zhong, Haoxiang, Zhou, Peng, Yue, Lu, Tang, Daoping, Zhang, Lingzhi
Format: Article
Language:English
Subjects:
Binders
Chemistry
Chemistry and Materials Science
Chitosan
Electrochemistry
Electrodes
Industrial Chemistry/Chemical Engineering
Lactates
Nanocomposites
Nanomaterials
Nanostructure
Physical Chemistry
Polyvinylidene fluorides
Research Article
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Summary:Micro/nano-structured SnS 2 was prepared by a hydrothermal method using biomolecular l -cysteine and SnCl 4 ·5H 2 O as sulfur source and tin source, respectively. The electrochemical performances of SnS 2 electrodes were investigated using water-soluble binders of carboxymethyl chitosan (C-chitosan) and chitosan lactate, and compared with the conventional water-soluble sodium carboxymethyl cellulose (CMC) and non-aqueous polyvinylidene difluoride (PVDF). SnS 2 electrode using the water-soluble binders (C-chitosan, chitosan lactate, and CMC) showed higher initial coulombic efficiency, larger reversible capacity, and better rate capabilities than that of PVDF. In addition, SnS 2 electrode using C-chitosan binder exhibited somewhat worse cycling stability, but better rate capability at a high rate of 5C than CMC.
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-013-0590-x