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:
Jul. 21, 2026
Filed:
Aug. 11, 2021
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Yuki Matsumoto, Niihama, JP;
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Abstract
A method for producing a lithium metal composite oxide including a step of calcining, at 600° C. or higher, one of a mixture of a lithium compound and a metal composite compound containing at least Ni and a reactant obtained by preliminarily calcining the mixture to obtain a calcined product, a step of cooling the calcined product from a calcining temperature in the step of obtaining the calcined product to 150° C. or lower to obtain a cooled product, and a step of pulverizing the cooled product such that a BET specific surface area becomes 0.90 to 1.55 m/g, in which, in the step of obtaining the cooled product, an average cooling rate in a temperature range from 600° C. to 150° C. is 150 to 3500° C./h.