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Novel composite anode materials of Ag and polymeric carbon for lithium ion batteries
Author(s) -
Gao J.,
Yang L. C.,
Fu L. J.,
Xu M.,
Liu W. J.,
Wu Y. P.,
Holze R.
Publication year - 2006
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.759
Subject(s) - materials science , polyacrylonitrile , composite number , scanning electron microscope , anode , dielectric spectroscopy , lithium (medication) , electrochemistry , carbon fibers , chemical engineering , monomer , composite material , polymer , electrode , chemistry , medicine , engineering , endocrinology
A new composite anode material of Ag and polymeric carbon was prepared by heat‐treating the mixture of polyacrylonitrile and AgNO 3 . They were characterized by scanning electron microscopy (SEM), X‐ray diffraction (XRD), electrochemical impedance spectroscopy (EIS) and electrochemical measurements. It was found that the addition of Ag was favorable for the improvement of electrochemical performance of the composite in comparison with the virginal polymeric carbon. These improvements were due to an increase of electronic conductivity, alloying of lithium with Ag and smaller particle size of the composites. The optimal amount of Ag addition is 5% based on the molar ratio of the monomer unit. Copyright © 2006 John Wiley & Sons, Ltd.