Electrochemical characteristics of nc-Si/SiC composite for anode electrode of lithium ion batteries

Title
Electrochemical characteristics of nc-Si/SiC composite for anode electrode of lithium ion batteries
Authors
Bup Ju Jeon이중기
Keywords
nc-Si/SiC composite; Nano scaled silicon; Plasma torch; Lithium ion secondary
Issue Date
2014-03
Publisher
Journal of alloys and compounds
Citation
VOL 590, 254-259
Abstract
nc-Si/SiC composite particles were prepared as an anode material for lithium ion batteries using a plasma jet with DC arc discharge. The composition of the nc-Si/SiC composite particles was controlled by setting the mole ratio of CH4 and SiH4 precursor gases. X-ray diffraction, TEM images, and Raman shift analyses revealed that the synthesized nc-Si/SiC composite particles comprised a construction of nano-nocaled structure with crystalline phases of active silicon, highly disordered amorphous carbon of graphite and crystalline phases of b-SiC. In the experimental range examined, the nc-Si/SiC composite particles showed good coulombic efficiency in comparison with particles high Si.Si bonding content due to the interplay of particles with a small proportion of carbon and the buffering effect against volume expansion by structural stabilization, and played a role as retarding media for the rapid electrochemical reactions of the SiC crystal against lithium.
URI
http://pubs.kist.re.kr/handle/201004/47091
ISSN
09258388
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE