Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1994-03-31
1996-08-27
Bowers, Jr., Charles L.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
429218, C01G 3100, H01M 458, C01D 1502
Patent
active
055498809
ABSTRACT:
A method of making an electrode active material of the nominal general formula LiV.sub.y O.sub.z where y is greater than 0 and up to about 3 and z is greater than 0 and up to about 8, comprises a series of steps. In the first step, lithium hydroxide is dispersed in an alcohol of the general formula C.sub.n H.sub.2n+1 OH. The alcohol and the hydroxide are each in an amount sufficient to provide a lithium alkoxide of the general formula LiOC.sub.n H.sub.2n+1. Next, progressive amounts of an oxide of vanadium having the general formula V.sub.2 O.sub.5 (vanadium pentoxide) are added while stirring the mixture. The amount of vanadium pentoxide in the mixture is sufficient to provide about 3 moles of vanadium for each mole of lithium present in the alkoxide. Then, the mixture is heated to an elevated temperature for a time sufficient to change the color of the oxide of vanadium and provide a solid precipitate. The solid precipitate is separated from the mixture and dried to obtain a powder of an oxide of vanadium having the nominal general formula LiV.sub.y O.sub.z, 0<y.ltoreq.3 and 0<z.ltoreq.8.
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Bowers Jr. Charles L.
Pasterczyk J.
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