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. 18, 2023
Filed:
Oct. 08, 2021
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Provided is a method for producing a composite alloy for use in an electrode for an alkaline storage battery, including a powder preparation step of preparing a hydrogen storage alloy powder containing Ti and Cr and having a BCC structure, an etching step of applying an acid to the hydrogen storage alloy powder prepared in the powder preparation step, a Pd film forming step of coating the surface of the hydrogen storage alloy powder subjected to the etching step with Pd using a substitution plating method, and a heat treatment step of heating the hydrogen storage alloy powder having a Pd film formed, at said heating being a temperature of 500° C. or less, wherein in the Pd coating forming step, the hydrogen storage alloy powder is coated with Pd under the condition that the Pd element weight ratio of the composite alloy to be produced is 0.47% or more.