Use of Multilayered Ni-Sn and Ni-Sn-C Thin Film Anodes for Lithium-Ion Batteries

This study explores the electrochemical performance of Ni-Sn and Ni-Sn-C thin film anodes in rechargeable lithium-ion batteries. A new strategy of forming a Ni-Sn-C multilayered thin film is proposed here, where nickel-coated carbon powder is used as a source material to incorporate carbon atoms int...

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Bibliographic Details
Published in:Electrochimica acta 2014-07, Vol.135, p.585-593
Main Authors: Polat, B.D., Abouimrane, A., Sezgin, N., Keles, O., Amine, K.
Format: Article
Language:English
Subjects:
Anodes
Carbon
Electrodes
Electron beam evaporation
Lithium-ion batteries
Ni-Sn thin film anode
Nickel
Swelling
Thin films
Tolerances
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Summary:This study explores the electrochemical performance of Ni-Sn and Ni-Sn-C thin film anodes in rechargeable lithium-ion batteries. A new strategy of forming a Ni-Sn-C multilayered thin film is proposed here, where nickel-coated carbon powder is used as a source material to incorporate carbon atoms into the thin film in a controlled manner. Galvanostatic half-cell measurements demonstrated that the Ni-Sn thin film shows a gradually decreasing capacity with cycling, whereas the Ni-Sn-C thin film exhibits a longer cycle life with good capacity retention. The improved cycle performance of the Ni-Sn-C electrode is attributed to its high tolerance against electrode swelling, which is closely associated with the stress-buffering action of nickel and the homogeneous distribution on nanoparticles induced by carbon.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2014.05.024