Journal
ELECTROCHIMICA ACTA
Volume 52, Issue 15, Pages 4878-4883Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2006.12.061
Keywords
lithium ion battery; anode; silicon/carbon composite; electrochemical stability
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Silicon/carbon composite anode materials were prepared by pyrolyzing the phenol-formaldehyde resin (PFR) mixed with silicon and graphite powders. Scanning electron microscopic (SEM) observation showed that the morphology stability of the composite electrodes can be retained during cycling. A structure evolution mechanism is proposed to illuminate the enhancement of cycleability of the composite electrode. The composite used as anode material for lithium ion batteries possesses a reversible capacity of over 700 mAh/g. (c) 2007 Elsevier Ltd. All rights reserved.
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