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. 19, 2021
Filed:
May. 31, 2018
Gs Yuasa International Ltd., Kyoto, JP;
Nan Ukumori, Kyoto, JP;
Yuichi Ikeda, Kyoto, JP;
GS Yuasa International Ltd., Kyoto, JP;
Abstract
A power storage element is provided that includes, in a positive electrode or a negative electrode, an active material which causes a plurality of electrochemical reactions in accordance with the process of change during charging and discharging and which exhibits hysteresis between a power storage amount-voltage charging (first) property and a power storage amount-voltage discharging (second) property. A BMU is provided with a first estimation unit which estimates a power storage amount-voltage charging property or/and a power storage amount-voltage discharging property referenced when estimating the power storage amount, on the basis of an upward voltage and a downward voltage which are respectively more than and less than a first threshold value, acquired from the first property, the second property, and the charging-discharging history.