Method of Making Active Materials For Use in Secondary Electrochemical Cells
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United States of America Patent
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Issued Date -
Mar 12, 2009
app pub date -
Sep 6, 2007
filing date -
Sep 6, 2007
priority date (Note) -
Abandoned
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Abstract
The present invention provides for the two step preparation of lithium vanadium phosphate by pre-treatment of a mixture of precursor materials via high pressure at relatively low temperatures in water (hydrothermal pretreatment) and then calcining such hydrothermally pretreated precursors at relatively high temperatures for a period of time sufficient to produce lithium vanadium phosphate. The lithium vanadium phosphate so produced finds use in producing electrodes for electrochemical cells.
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