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Title:
A manufacturing method of the composite material of a metal oxide and conductive carbon
Document Type and Number:
Japanese Patent JP6178554
Kind Code:
B2
Abstract:
Provided is a method whereby metal oxide nanoparticles having evenness of size are efficiently and highly dispersedly adhered to conductive carbon powder. This method comprises: a preparation step in which a reaction solution containing water, a compound with a transition metal selected from the group consisting of Mn, Fe, Co, and Ni, and conductive carbon powder and having a pH in the range of 9 to 11 is introduced into a rotatable reactor; a supporting step in which the reactor is rotated to apply shear stress and centrifugal force to the reaction solution, thereby yielding a core of a hydroxide of the transition metal and dispersing the thus-yielded core of a hydroxide of the transition metal and the conductive carbon powder and simultaneously supporting the hydroxide of the transition metal by the conductive carbon powder; and a heat treatment step in which the conductive carbon powder loaded with the hydroxide of the transition metal is heated to thereby convert the hydroxide supported by the conductive carbon powder into an oxide nanoparticle.

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Inventors:
Katsuhiko Naoi
Kazuko Naoi
Satoshi Kubota
Daisuke Yonekura
Shuichi Ishimoto
Kenji Tamako
Application Number:
JP2012193592A
Publication Date:
August 09, 2017
Filing Date:
September 03, 2012
Export Citation:
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Assignee:
Nippon Chemi-Con Co., Ltd.
National University Corporation Tokyo University of Agriculture and Technology
K&Double Co., Ltd.
International Classes:
H01M4/505; H01M4/36; H01M4/50; H01M4/52; H01M4/525; H01M4/62
Domestic Patent References:
JP2011228062A
JP2009044009A
JP2009004371A
JP2012521639A
JP2013211114A
Foreign References:
WO2012147766A1
Attorney, Agent or Firm:
Kazuko Satake



 
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