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. 05, 2019
Filed:
Oct. 15, 2015
Applicant:
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Inventor:
Kohei Honkura, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H02J 7/007 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H01M 2010/4271 (2013.01);
Abstract
A positive electrode potential and a negative electrode potential during charge or discharge of a secondary battery are determined, based on potentials of a positive electrode and a negative electrode in an open circuit state corresponding to a SOC of the secondary battery, and internal resistances of the positive electrode and the negative electrode corresponding to the SOC of the secondary battery, and a current of the secondary battery is controlled such that the positive electrode potential and the negative electrode potential fall within a predetermined range.