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Graphite‐Grafted Silicon Nanocomposite as a Negative Electrode for Lithium‐Ion Batteries
Author(s) -
Martin Cédric,
Alias Mélanie,
Christien Frédéric,
Crosnier Olivier,
Bélanger Daniel,
Brousse Thierry
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200900235
Subject(s) - nanocomposite , graphite , materials science , lithium (medication) , silicon , gravimetric analysis , electrode , nanotechnology , battery (electricity) , lithium ion battery , chemical engineering , composite material , organic chemistry , optoelectronics , power (physics) , chemistry , medicine , physics , quantum mechanics , endocrinology , engineering
p ‐Phenylenediamine is used to successively generate two aryl radicals that are required to link silicon nanoparticles to graphite flakes by a phenyl bridge and form new silicon/graphite nanocomposites (see image). Such a covalent grafting technique enhances the cycling ability and the gravimetric capacity of the nano composite‐based electrode in a lithium‐ion battery.