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:
Oct. 08, 2013
Filed:
Dec. 27, 2011
Katsuyuki Hojo, Toyota, JP;
Katsuyuki Hojo, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
Provided is a device to sense battery internal state that can sense tiny elastic waves accompanying a reaction inside a battery and can accurately ascertain changes in battery internal state. The device () to sense the internal state of a battery () comprises restraining members () that apply compressive force to the battery (), a non-metallic plate () disposed between the battery () and a restraining member (), and multiple acoustic emission sensors () affixed to the non-metallic plate (). Compressive force is applied to the battery () by the restraining members (), elastic waves (W) generated in the battery () are sensed by the multiple acoustic emission sensors (), and the internal state of the battery () is sensed by analyzing the sensed elastic waves (W).