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:
Aug. 06, 2019
Filed:
May. 20, 2015
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Yosuke Ota, Chiba, JP;
Hidetoshi Yamabe, Chiba, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Abstract
Provided are: superior coated lithium-nickel composite oxide particles which have an environmental stability that enables suppression of the occurrence of impurities due to absorption of moisture or carbon dioxide, which have high adhesion that prevents a coating layer from readily separating, and which have lithium ion conductivity; and a method for producing such particles. Provided is a method for producing coated lithium-nickel composite oxide particles, the method being characterized by contacting a cyclic siloxane with the surfaces of nickel-based lithium-nickel composite oxide particles to form surface coats. The particles have high adhesion to a coating layer and as a compound can suppress the permeation of moisture and carbon dioxide, and also have lithium ion conductivity. It is therefore possible to provide coated lithium-nickel composite oxide particles that are excellent for use in lithium ion cells.