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:
Apr. 08, 2025
Filed:
Feb. 03, 2022
Nippon Electric Glass Co., Ltd., Otsu, JP;
National University Corporation Nagaoka University of Technology, Nagaoka, JP;
Tsuyoshi Honma, Nagaoka, JP;
Masafumi Hiratsuka, Nagaoka, JP;
Hideo Yamauchi, Otsu, JP;
Ayumu Tanaka, Otsu, JP;
Kei Tsunoda, Otsu, JP;
Yoshinori Yamazaki, Otsu, JP;
NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;
NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY, Niigata, JP;
Abstract
Provided is a method for producing a positive electrode active material for an alkali ion secondary battery, the positive electrode active material containing a large amount of a transition metal and enabling operation of the battery. In the method for producing a positive electrode active material for an alkali ion secondary battery, in which the positive electrode active material contains 34 mol % or more of CrO+FeO+MnO+CoO+NiO, the method includes: a step of preparing a positive electrode active material precursor containing crystals; and a step of irradiating the positive electrode active material precursor with light to melt the crystals and amorphize at least a portion of the positive electrode active material precursor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile