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:
Sep. 15, 2026
Filed:
Aug. 30, 2023
Kanadevia Corporation, Osaka, JP;
Kenji Okamoto, Osaka, JP;
Hideyuki Fukui, Osaka, JP;
KANADEVIA CORPORATION, Osaka, JP;
Abstract
An all-solid state secondary cell comprises a positive electrode collector, a negative electrode collector, and a powder laminate disposed between the positive electrode collector and the negative electrode collector. The powder laminate has a positive electrode powder layer, a negative powder layer, a solid electrolyte layer disposed between the positive electrode powder layer and the negative electrode powder layer, and an absorption layer covering an outer periphery of the positive electrode powder layer or the negative electrode powder layer. The absorption layer includes at least one of a hydrogen sulfide adsorption layer and a moisture adsorption layer. The powder laminate comprises a peripheral edge part and a center part surrounded by the peripheral edge part. A thickness of the peripheral edge part of the powder laminate is greater than a thickness of the center part of the powder laminate.