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.
Patent No.:
Date of Patent:
Sep. 25, 2012
Filed:
Apr. 07, 2008
Ryuichi Akagi, Wakayama, JP;
Kenichi Nishimura, Tokyo, JP;
Yasuhisa Fukumoto, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
It is an object of the present invention to provide a method for producing a positive electrode active material for a battery, which can realize easy regulation of pore size in porosity formation of a positive electrode active material and is less likely to undergo hindrance of ion conduction caused by residues and, thus, can realize excellent high-rate discharge characteristics, and a method for producing a composition for a battery using the positive electrode active material for the battery. The method for producing a positive electrode active material for a battery of the present invention is a method for producing a positive electrode active material for a battery, including: a step 1 of firing a mixture of a raw material for the positive electrode active material and carbon particles to remove the carbon particles; and a step 2 of milling and classifying a fired body obtained in the step 1.