NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY BY USING SAME
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United States of America Patent
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Issued Date -
Jan 7, 2016
app pub date -
Mar 18, 2014
filing date -
Mar 26, 2013
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Abstract
A high-capacity non-aqueous electrolyte secondary battery capable of maintaining good cycle characteristics even in the case where large current discharge is repeated is provided. A positive electrode active material particle (32) includes a base particle (33) produced by agglomeration of primary particles (33a) made from lithium transition metal oxide containing tungsten and a rare earth compound particles (34) attached to the surface of the base particle (33). Preferably, the rare earth compound is attached to the interface at which the primary particles are in contact with each other or the vicinity of the interface.
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