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:
Nov. 06, 2018
Filed:
Jun. 04, 2015
Toyo Tire & Rubber Co., Ltd., Osaka-shi, Osaka, JP;
Takeshi Fukuda, Osaka, JP;
Takahiro Ohta, Osaka, JP;
TOYO TIRE & RUBBER CO., LTD., Osaka-shi, JP;
Abstract
The present invention provides a deformation detection sensor for a sealed secondary battery, that makes it possible to detect deformation resulting from swelling of a cell with a high degree of sensitivity, that does not restrict capacity, and that has excellent stability. The deformation detection sensor for a sealed secondary battery includes a polymer matrix layerand a detection unit. The polymer matrix layercontains a magnetic filler that is dispersed therein and that changes an external field in accordance with deformation of the polymer matrix layer. The detection unitdetects change in the external field. The polymer matrix layeris sandwiched in a gap between adjacent cellsand mounted in a compressed state.