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:
Nov. 09, 2021
Filed:
Dec. 07, 2018
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Takayuki Ishikawa, Osaka, JP;
Ryuichi Natsui, Osaka, JP;
Issei Ikeuchi, Osaka, JP;
Kensuke Nakura, Osaka, JP;
Abstract
A positive electrode active material includes a lithium composite oxide containing: at least one element selected from the group consisting of fluorine, chlorine, nitrogen, sulfur, bromine, and iodine; and a covering material that covers a surface of the lithium composite oxide. The lithium composite oxide has a crystal structure that belongs to a space group R-3 m. The ratio I/Iof a first integrated intensity Iof a first peak corresponding to a (003) plane to a second integrated intensity Iof a second peak corresponding to a (104) plane in an XRD pattern of the lithium composite oxide satisfies 0.62≤I/I≤0.90. The covering material has an electron conductivity of 10S/m or less.