Comparative Study on Performances of Composite Anodes of SiO, Si and Graphite for Lithium Rechargeable Batteriesopen access
- Authors
- Doh, Chil-Hoon; Veluchamy, Angathevar; Lee, Duck-Jun; Lee, Jung-Hoon; Jin, Bong-Soo; Moon, Seong-In; Park, Cheol-Wan; Kim, Dong-Won
- Issue Date
- May-2010
- Publisher
- KOREAN CHEMICAL SOC
- Keywords
- Silicon; Silicon monoxide; Graphite; Anode; Lithium ion battery
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.31, no.5, pp.1257 - 1261
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 31
- Number
- 5
- Start Page
- 1257
- End Page
- 1261
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175064
- DOI
- 10.5012/bkcs.2010.31.5.1257
- ISSN
- 0253-2964
- Abstract
- The electrochemical performances of anode composites comprising elemental silicon (Si), silicon monoxide (SiO), and graphite (C) were investigated. The composite devoid of elemental silicon (SiO:C=1:1) and its carbon coated composite showed reduced capacity degradation with measured values of 606 and 584 mAh/g at the fiftieth cycle. The capacity retention nature when the composites were cycled followed the order of Si:SiO:C=3:1:4 < Si:SiO:C = 2:2:4 < SiO:C = :1 < SiO:C = 1:1 (carbon coated). A comparison of the capacity retention properties for the composites in terms of the silicon content showed that a reduced silicon content increased the stability of the composite electrodes. Even though the carbon-coated composite delivered low capacity during cycling compared to the other composites, its low capacity degradation made the anode a better choice for lithium ion batteries.
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