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. 13, 2022
Filed:
Sep. 24, 2020
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Tsutomu Nozoe, Chiba, JP;
Toyomasa Nakano, Chiba, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Abstract
A positive electrode material for a lithium ion secondary battery containing carbon, in which, when a peak of the carbon that is measured by Raman scattering and is present at 2200 to 3400 cmis peak-separated into peaks including five types of Voigt functions of a peakhaving a peak top present at 2200 to 2380 cm, a peakhaving a peak top present at 2400 to 2550 cm, a peakhaving a peak top present at 2600 to 2750 cm, a peakhaving a peak top present at 2850 to 2950 cm, and a peakhaving a peak top present at 3100 to 3250 cm, an average of proportions of Gaussian functions in the peakand the peakis 90% or more and less than 100%.