Thumbnail
Access Restriction
Open

Author Suzuki, Kimihito ♦ Hamada, Takeshi ♦ Sugiura, Tsutomu
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ ENERGY STORAGE ♦ ANODES ♦ GRAPHITE ♦ LITHIUM ♦ METAL-NONMETAL BATTERIES ♦ CLATHRATES ♦ SURFACE PROPERTIES ♦ MATHEMATICAL MODELS
Abstract The initial irreversible reaction that occurs in graphite anodes during the first lithium intercalation in lithium rechargeable batteries was studied in view of graphite surface structure. Graphitized mesophase spheres and pitch-based carbon fibers, which show low irreversible capacity, were shown to have turbostatic surface regions and highly graphitized cores using Ar-ion laser Raman spectroscopy. Burning off these surface regions resulted in remarkable increases of initial irreversible capacity. Those results can be explained by a proposed model that a turbostatic structure of the graphite surface region resists drastic swelling of interlayer spaces arising from cointercalation of solvated ions and depresses the side reaction.
ISSN 00134651
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-03-01
Publisher Place United States
Journal Journal of the Electrochemical Society
Volume Number 146
Issue Number 3


Open content in new tab

   Open content in new tab