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:
Mar. 17, 2026
Filed:
Jan. 25, 2021
Zeon Corporation, Tokyo, JP;
Masanobu Sato, Tokyo, JP;
Tasuku Ogihara, Tokyo, JP;
ZEON CORPORATION, Tokyo, JP;
Abstract
A laminate for a secondary battery includes an electrode and a separator that are stacked via an adhesive material. For this laminate, when a value measured for shear peel strength between the electrode and the separator with varying temperature is taken to be A (mN/mm), a value of maximum heat shrinkage force for the separator determined by thermomechanical analysis is taken to be B (mN/mm), and a temperature at which heat shrinkage force for the separator determined by thermomechanical analysis decreases to a value (mN/mm) that is 20% higher than a value (mN/mm) of heat shrinkage force at 30° C. is taken to be a heat shrinkage end temperature α (° C.), A has a value satisfying A>B in a temperature range of not lower than 25° C. and not higher than the heat shrinkage end temperature α° C.