CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY CONTAINING PHOSPHATE FLUORIDE AND PREPARATION METHOD THEREOF
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United States of America Patent
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Issued Date -
May 16, 2013
app pub date -
Nov 6, 2012
filing date -
Nov 11, 2011
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Abandoned
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Abstract
Provided is a cathode active material for lithium secondary battery containing the compound of Formula 1 doped or coated with phosphate fluoride, prepared by adding phosphate fluoride to the precursor compound and subjecting to sintering and heat-treatment process, which has improved lifecycle and stability so that it can be used to improve efficiency of lithium secondary battery:
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