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:
Jun. 04, 2024
Filed:
Nov. 30, 2022
Primearth Ev Energy Co., Ltd., Kosai, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
Masakazu Umehara, Toyota, JP;
Naomichi Ishikawa, Kosai, JP;
Naoto Ooshiro, Hamamatsu, JP;
Yuuki Kudou, Sendai, JP;
Hideki Hayashi, Kurokawa-gun, JP;
Hiroki Yamada, Sendai, JP;
Naoya Kishimoto, Nagoya, JP;
PRIMEARTH EV ENERGY CO., LTD., Kosai, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo, JP;
Abstract
A method for manufacturing a rechargeable battery includes forming a mixture layer and an insulating layer on an electrode substrate having an edge extending in a specified direction so that an exposed portion where the electrode substrate is exposed extends between the edge and the insulating layer; pressing the mixture layer; and stretching an extension portion, located between the edge and the mixture layer, and the insulating layer in the specified direction. The stretching includes applying a stress greater than or equal to yield stress of the electrode substrate or greater than or equal to 0.2% proof stress of the electrode substrate and less than tensile strength of the electrode substrate to the extension portion, and applying a stress greater than or equal to yield stress of the insulating layer or greater than or equal to 0.2% proof stress of the insulating layer to the insulating layer.