Title:
リン酸バナジウムリチウム炭素複合体の製造方法
Document Type and Number:
Japanese Patent JP5612392
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a process of producing a vanadium lithium phosphate carbon composite useful for a positive active material for lithium secondary batteries.SOLUTION: There is provided the process of producing the vanadium lithium phosphate carbon composite composed of a vanadium lithium phosphate having a NASICON structure and an electroconductive carbon material. The process comprises the first step of preparing a slurry wherein a vanadium source, a source of the electroconductive carbon material, and an Me source added as necessary, (Me donates a metal element or a transition metal element having an atomic number of not less than 11 except for V) are dispersed in an aqueous solution of lithium phosphate, the second step of obtaining a reaction precursor by spray-drying the slurry, and the third step of firing the reaction precursor at 600-1,300°C in an inert gas environment or in a reducing environment.
Inventors:
山田 清
合川 茉里
合川 茉里
Application Number:
JP2010178881A
Publication Date:
October 22, 2014
Filing Date:
August 09, 2010
Export Citation:
Assignee:
日本化学工業株式会社
International Classes:
C01B25/45; H01M4/36; H01M4/58