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:
Oct. 20, 2026
Filed:
Oct. 17, 2023
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
Toshihide Fukae, Kobe, JP;
PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo, JP;
Abstract
Regarding a herein disclosed battery, plural positive electrode tabsare provided on a positive electrode. On a cross section view being cut in a direction orthogonal to a wound axis WL of a wound electrode assembly, the positive electrodeincludes a first area Apositioned at one side more than a wound axis WL of a wound electrode assemblywith respect to a thickness direction X reaching from the one flat surfacethrough the wound axis WL to the other flat surfaceand includes a second area Apositioned at the other side more than the wound axis WL with respect to the thickness direction X. In the first area A, the positive electrode tabsare provided on layers of eighty percent or more of the positive electrode. In the second area A, among the layers counted until 5th layer from the wound axis WL side, there are plural layers on which the positive electrode tabsare formed. On layers at outer side more than 5th layer counted from the wound axis WL side, none of the positive electrode tabsare provided. And, plural positive electrode tabsare laminated and then joined to a positive electrode collecting part
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