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. 29, 2025
Filed:
Jun. 10, 2021
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Daisuke Inoue, Ageo, JP;
Takuya Yamamoto, Ageo, JP;
Jaime W. Dumont, Lyons, CO (US);
Arrelaine A. Dameron, Boulder, CO (US);
Barbara K. Hughes, Wheat Ridge, CO (US);
Abstract
An active material includes a core portion, and a coating portion arranged on a surface of the core portion. The core portion contains elemental lithium (Li), elemental manganese (Mn), and elemental oxygen (O). The coating portion contains an element A (A is at least one selected from the group consisting of Ti, Zr, Ta, Nb, and Al) and elemental oxygen (O). W/(T×S) is more than 0 and 15% by mass/(cm/g) or less, wherein T (nm) represents an average thickness of the coating portion, S (m/g) represents a specific surface area of the active material, and W (% by mass) represents an amount of element A contained in the coating portion.