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:
Jan. 22, 2019
Filed:
Apr. 10, 2015
Toyo Tire & Rubber Co., Ltd., Osaka-shi, Osaka, JP;
Takeshi Fukuda, Osaka, JP;
Nobuyuki Minakata, Osaka, JP;
TOYO TIRE & RUBBER CO., LTD., Osaka-shi, JP;
Abstract
In a deformation detection method for a sealed-type rechargeable batteryin which an electrode group, which is formed by stacking a positive electrodeand a negative electrodewith a separatorinterposed therebetween, is accommodated in a sealed outer casing, a polymer matrix layeris attached to an outer surface of a wall portionof the outer casingthat faces the electrode groupin a thickness direction of the positive electrodeand the negative electrodeor in a direction perpendicular to the thickness direction. The polymer matrix layercontains a filler that is dispersed therein and that changes an external field in response to deformation of the polymer matrix layer. Change in the external field accompanying the deformation of the polymer matrix layeris detected by a detection unit