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:
Jul. 23, 2019
Filed:
Oct. 08, 2014
Sony Corporation, Tokyo, JP;
Manabu Uchino, Kanagawa, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
The present disclosure provides an open-circuit voltage estimation device that estimates a high-precision open-circuit voltage value, a power storage apparatus, and an open-circuit voltage estimation method. The open-circuit voltage estimation device includes: an open-circuit voltage calculator that calculates an open-circuit voltage value of a secondary cell; a polarization voltage estimator that estimates a component having a relatively large time constant among polarization voltage components of the secondary cell; and an open-circuit voltage corrector that corrects the open-circuit voltage value calculated by the open-circuit voltage calculator with the component having the relatively large time constant estimated by the polarization voltage estimator.