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:
Mar. 03, 2015
Filed:
Jul. 16, 2010
Masanori Morishita, Kyoto, JP;
Tadashi Kakeya, Kyoto, JP;
Seijiro Ochiai, Kyoto, JP;
Aki Nakashima, Kyoto, JP;
Yoshiteru Kawabe, Kyoto, JP;
Tetsuo Sakai, Osaka, JP;
Masanori Morishita, Kyoto, JP;
Tadashi Kakeya, Kyoto, JP;
Seijiro Ochiai, Kyoto, JP;
Aki Nakashima, Kyoto, JP;
Yoshiteru Kawabe, Kyoto, JP;
Tetsuo Sakai, Osaka, JP;
GS Yuasa International Ltd., Kyoto-Shi, Kyoto, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
A compound having a high reduction resistance and being capable of sufficiently performing a function as an electronic conductive additive when added to a positive electrode active material as an electronic conductive additive is provided. In a method for producing a cobalt cerium compound including a step of depositing a hydroxide containing cobalt and cerium in an aqueous solution containing cobalt ions and cerium ions by changing the pH of the aqueous solution and thereafter performing a treatment of oxidizing the hydroxide, the ratio of the cerium ions contained in the aqueous solution containing the cobalt ions and the cerium ions is set to be more than 5% by atom and 70% by atom or less with respect to the sum of the cobalt ions and the cerium ions before the hydroxide is deposited.