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Preparation of Ni-Coated Si Anode Materials Using Electroless Plating for High Performance Secondary Lithium-Ion Batteries

Title
Preparation of Ni-Coated Si Anode Materials Using Electroless Plating for High Performance Secondary Lithium-Ion Batteries
Author(s)
Baek, Seong HoSon, InjoonJeong, Young-Min
Issued Date
2017-11
Citation
Journal of Nanoscience and Nanotechnology, v.17, no.11, pp.8196 - 8200
Type
Article
Author Keywords
Lithium Ion BatteriesSiliconAnode MaterialsElectroless PlatingNi Coating
Keywords
SILICON NANOWIRESCOMPOSITEDEPOSITIONCOATINGSCU
ISSN
1533-4880
Abstract
In this paper, we introduce an electroless plating technique to synthesize uniform metal nanoparticles on silicon (Si) powders that provide electrical pathways on Si anodes in lithium-ion batteries (LIBs). Scanning electron microscopy images reveal that hemispherical Ni nanoparticles are conformally deposited on Si powders. The electrochemical performances show that the rate capability and cyclability of Ni-coated Si are much better than bare Si electrodes. Electrochemical impedance spectroscopy and powder resistance measurements confirm that electroless plating enhances electrical conductivity by coating Ni nanoparticles on a Si anode, which leads to excellent electrochemical performances. Our approach provides a simple and effective route to prepare high-performance anode materials with large mass for future LIB applications. Copyright © 2017 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/4409
DOI
10.1166/jnn.2017.15107
Publisher
American Scientific Publishers
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Division of Energy & Environmental Technology 1. Journal Articles

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