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:
Mar. 01, 2016
Filed:
Feb. 08, 2013
Nec Energy Devices, Ltd., Kanagawa, JP;
Tadahiro Yoshida, Kanagawa, JP;
NEC ENERGY DEVICES, LTD., Kanagawa, JP;
Abstract
A plurality of battery cells () are connected in series to each other. A temperature measurement unit () measures temperatures of two or more battery cells (). A battery control unit () controls charge and discharge of the battery cells () on the basis of the temperatures measured by the temperature measurement unit (). In addition, when the charge of the battery cells () is performed or the discharge of the battery cells () is performed, the battery control unit () specifies a lowest temperature cell having the lowest temperature and a highest temperature cell having the highest temperature, on the basis of the temperatures measured by the temperature measurement unit (). In addition, the battery control unit () continues the charge or discharge, as it is, when a first condition in which a temperature difference ΔT between the highest temperature cell and the lowest temperature cell is equal to or greater than a reference value Tis not satisfied. On the other hand, when the temperature difference ΔT satisfies the first condition, the battery control unit () outputs a first signal.