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:
Feb. 28, 2023
Filed:
Dec. 09, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Toshinori Okura, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Provided is technology which can prevent breakage of a collector in a battery using an electrode sheet including an uncoated part with a narrowed width. A battery includes a collector bundle including an uncoated part stacked in a plurality of layers formed at each side edge in the width direction of the electrode body. A junction part including compressed uncoated part in plural layers is formed at an outer end in the width direction of the collector bundle. A converging part including the collector in plural layers converging so that the surface is inclined toward the junction part is formed inside in the width direction. The foil collecting angle of the collector bundle is 120° or more and 160° or less, and an R part with a curvature radius of 0.3 mm or more is formed at the converging part side end of the junction surface of the collector terminal.