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. 17, 2018
Filed:
Mar. 03, 2016
Applicant:
Sii Semiconductor Corporation, Chiba-shi, Chiba, JP;
Inventor:
Eiki Imaizumi, Chiba, JP;
Assignee:
ABLIC INC., Chiba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/46 (2006.01); G01R 31/36 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3662 (2013.01); G01R 31/3624 (2013.01); G01R 31/3679 (2013.01); G01R 31/3651 (2013.01);
Abstract
Provided is a low-cost battery pack capable of predicting a remaining battery life of a rechargeable battery with more accuracy while being capable of dealing with a variation in battery characteristics. In a remaining battery life prediction device, a constant current source configured to cause a constant current to flow through a battery as a load current is provided, battery voltages before and after the constant current as the load current is caused to flow through the battery are measured at a plurality of time points, and a battery internal resistance is calculated based on a change over time of the battery voltage.