Method of manufacturing active material, active material, electrode, and lithium-ion secondary battery
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United States of America Patent
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May 21, 2013
Grant Date -
Sep 16, 2010
app pub date -
Mar 12, 2010
filing date -
Mar 16, 2009
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Abstract
The present invention provides a method of manufacturing an active material comprising both α-LiVOPO4 and β-LiVOPO4. The method of manufacturing an active material in accordance with the present invention comprises a hydrothermal synthesis step of heating a mixture containing a lithium source, a phosphate source, a vanadium source, and water and having a pH greater 7 but smaller than 12.7; and a firing step of firing the mixture after being heated under pressure in the hydrothermal synthesis step.
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