The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 19, 2024

Filed:

Mar. 17, 2020
Applicant:

Sakai Chemical Industry Co., Ltd., Osaka, JP;

Inventors:

Hironao Matsuda, Osaka, JP;

Minoru Yoneda, Osaka, JP;

Norimune Hirata, Osaka, JP;

Kazuya Miyasaka, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/90 (2006.01); H01M 4/88 (2006.01); H01M 8/1213 (2016.01); H01M 8/12 (2016.01);
U.S. Cl.
CPC ...
H01M 4/9033 (2013.01); H01M 4/8825 (2013.01); H01M 4/8882 (2013.01); H01M 8/1213 (2013.01); H01M 2008/1293 (2013.01);
Abstract

A method for producing a metal composite oxide, the method including steps of: preparing a slurry by mixing different kinds of metal compounds in a powder form, a dispersion medium, and a dispersant, and baking the different kinds of metal compounds after the dispersion medium in the slurry is removed. The slurry further includes a polyalkylene oxide having a viscosity average molecular weight of 150,000 or more. The slurry has a viscosity of 10 mPa·s to 2000 mPa·s, the viscosity being measured using a B-type viscometer under conditions of a temperature of 23° C. to 27° C. and a rotation rate of 60 rpm. According to the production method, a slurry in which different kinds metal compound powders are uniformly dispersed and a precipitate is unlikely to be formed can be obtained. Therefore, a metal composite oxide having a desired composition can be obtained.


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