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:
Feb. 19, 2008
Filed:
Jun. 18, 2003
Applicant:
Tomonaga Sugimoto, Fujisawa, JP;
Inventor:
Tomonaga Sugimoto, Fujisawa, JP;
Assignee:
Nissan Motor Co., Ltd., Kanagawa-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a battery pack which includes a plurality of parallel blocks, each of which comprises a plurality of cells connected in parallel, and which are themselves connected in series, the voltage of each parallel block of the battery pack before and after discharge or before and after charge of a predetermined amount of capacity is detected, and abnormality of the cells connected in parallel within each parallel block is determined based upon the amount of change of voltage of each parallel block.