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:
Jan. 20, 2026
Filed:
Aug. 11, 2022
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Makio Kon, Mishima, JP;
Hideki Iba, Toyota, JP;
Yukinari Kotani, Gotemba, JP;
Naotaka Sawada, Fuji, JP;
Tomoya Matsunaga, Susono, JP;
Hiroshi Nishiyama, Okazaki, JP;
Hiroshi Suyama, Mishima, JP;
Masashi Kodama, Hadano, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A main object of the present disclosure is to provide an anode active material with excellent capacity properties. The present disclosure achieves the object by providing an anode active material to be used in an alkaline storage battery, the anode active material including: a base material containing Ti and Cr, and including a BCC structure as a metastable phase; and a coating layer that coats the base material, and contains a catalyst metal and a metal with oxygen affinity that is more than oxygen affinity of Ti; wherein an oxide film is present in an interface between the coating layer and the base material; and when a first thickness T(nm) and a second thickness T(nm) of the oxide film are determined by Auger electron spectroscopy, a rate of the Twith respect to the T, which is T/Tis, for example, 1.50 or more.