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Synthesis of Submicrometer‐Sized Electrochemically Active Lithium Cobalt Oxide via a Polymer Precursor
Author(s) -
Li L.,
Meyer W. H.,
Wegner G.,
WohlfahrtMehrens M.
Publication year - 2005
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.200400695
Subject(s) - materials science , calcination , lithium cobalt oxide , agglomerate , cobalt oxide , amorphous solid , lithium (medication) , cobalt , polymer , chemical engineering , oxide , salt (chemistry) , grain size , inorganic chemistry , lithium ion battery , metallurgy , battery (electricity) , organic chemistry , composite material , catalysis , medicine , power (physics) , chemistry , physics , quantum mechanics , engineering , endocrinology
Submicrometer‐sized LiCoO 2 powders (see Figure) for potential applications in energy‐storage devices are prepared by calcination starting from an amorphous Li/Co salt of poly(acrylic acid). LiCoO 2 powders with an average grain size of 200 nm are obtained. They exhibit a specific capacity of up to 180 mA h g –1 if charged at 4.5 V vs. Li/Li + . The macromorphology of the precursor fixed by spray‐drying is preserved in the agglomerate of the grains obtained after calcination.