Method for producing positive cathode material for lithium battery, and lithium battery
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United States of America Patent
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Mar 3, 2009
Grant Date -
Jun 15, 2006
app pub date -
Oct 17, 2003
filing date -
Oct 18, 2002
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Abstract
A method for producing a cathode material for a lithium battery, characterized in that it comprises admixing a compound liberating a phosphate ion in a solution and metallic iron, and dissolving the metallic iron, followed by firing, thereby synthesizing ferric phosphate. The above method further comprising reacting a raw material mixture while grinding it down or refluxing can produce ferric phosphate cathode material having a fine particle diameter and exhibiting high activity, through a precursor before firing having a fine particle diameter.
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