Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 426, Issue 1-2, Pages 218-222Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2005.11.093
Keywords
spherical natural graphite; phenol resin; lithium ion battery; anode material
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The capacity of natural graphite in the lithium ion battery anode decays seriously. The phenol resin is used as a reaction material to modify the electrochemical performance of spherical graphite as the anode material in lithium ion batteries. Measuring the reversible capacity indicates change in the surface structure of spherical graphite. A dense layer of methyl groups was thus formed. Some structural imperfections are removed and the stability of the graphite structure is increased. Clearly, reducing the irreversible capacity is beneficial in controlling the uniformity of the spherical graphite surface structure. (c) 2006 Elsevier B.V. All rights reserved.
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