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. 04, 2022
Filed:
Apr. 03, 2018
Waseda University, Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Tetsuya Osaka, Tokyo, JP;
Tokihiko Yokoshima, Tokyo, JP;
Daikichi Mukoyama, Tokyo, JP;
Hiroki Nara, Tokyo, JP;
WASEDA UNIVERSITY, Tokyo, JP;
Abstract
A battery moduleincludes a group batteryin which batteries(to) are connected in series, and an assessment evaluation unitconfigured to calculate respective states of health of battery cells, in which the group batteryincludes label elementsrespectively connected in parallel with the battery cellsand configured such that respective impedance characteristics of the batteriesdiffer from one another, and the assessment evaluation unitincludes a measurement unitconfigured to measure a first Cole-Cole plot of the group battery, a first calculation unitconfigured to decompose the first Cole-Cole plot into respective second Cole-Cole plots of the batteries, a second calculation unitconfigured to calculate respective third Cole-Cole plots of the battery cellsfrom the second Cole-Cole plots, and a third calculation unitconfigured to calculate respective states of the battery cellsfrom the third Cole-Cole plots.