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. 30, 2026
Filed:
Dec. 25, 2023
Prime Planet Energy & Solutions, Inc., Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Primearth Ev Energy Co., Ltd., Shizuoka-ken, JP;
Yozo Uchida, Toyota, JP;
Tsuyoshi Ehara, Toyota, JP;
Yuki Sato, Toyota, JP;
Syoichi Tsuchiya, Toyota, JP;
Masataka Asai, Toyota, JP;
Tsuyoshi Asano, Toyota, JP;
Masahiro Uchimura, Toyota, JP;
Yasuaki Nagano, Kosai, JP;
Shigeru Matsumoto, Toyohashi, JP;
PRIME PLANET ENERGY & SOLUTIONS, INC., Tokyo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-Ken, JP;
TOYOTA BATTERY .CO., LTD., Shizuoka-ken, JP;
Abstract
A battery includes a unit member in which a positive-electrode resin member made of resin is joined to each of a lid and a positive terminal member, which are made of metal. The lid and the positive terminal member are formed, on respective surfaces, with protrusions that have an average diameter of less than 1 μm on a nano-order and are arranged in a densely reticulated arrangement. The resin forming the positive-electrode resin member intrudes into each gap between at least distal ends of the adjacent protrusions, so that the positive-electrode resin member is joined to at least the distal ends of the protrusions.