期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 272, 期 1-2, 页码 22-26出版社
ELSEVIER
DOI: 10.1016/j.colsurfa.2005.07.003
关键词
anode material; nanoparticle; silicon; polypyrrole; coating
Silicon (Si) nanoparticles were stabilized by sodium dodecyl sulfate and poly (N-vinylpyrrolidone) in water, and coated with polypyrrole (PPy) via in situ polymerization of pyrrole with FeCl3. TEM images revealed that the Si nanoparticles were successfully coated with PPy (average thickness, similar to 2 nm). The Li/PPy-coated Si electrode exhibited improved discharge capacities, compared to that of a reported Li/pure Si electrode, even though the capacity fading problem caused by large-scaled crumbling of the electrode was not overcome. (c) 2005 Elsevier B.V. All rights reserved.
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