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. 04, 2025
Filed:
Nov. 18, 2021
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Haruyuki Nakanishi, Nagoya, JP;
Haruo Sawa, Kochi, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2010.01); H01M 10/30 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/58 (2013.01); H01M 10/30 (2013.01); H01M 2004/027 (2013.01);
Abstract
Provided is a negative electrode active material for a battery, the negative electrode active material comprising an iron compound, the iron compound containing a salt of a polyoxygen anion with iron, wherein the polyoxygen anion has a first atom and an oxygen atom, the first atom is at least one type of atom selected from atoms belonging to Group 4, Group 5, Group 6, Group 13, and Group 14 in the periodic table of elements, and a molar ratio of the oxygen atom to the first atom in the polyoxygen anion is more than 1.