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. 04, 2020
Filed:
Aug. 02, 2016
Eh Europe Gmbh, Zug, CH;
Jean-Patrick Smaha, Arras, FR;
EH Europe GmbH, Zug, CH;
Abstract
The present invention concerns a method and apparatus for battery charging. The method comprises the steps of connecting a battery to a battery charging apparatus and supplying a voltage and current to the battery, wherein a constant voltage is supplied for an extended period of time. At the beginning of the constant voltage being supplied, the initial charging current being supplied to the battery is noted (Amp). During the period in which a constant voltage is supplied, the rate of change of the charging current supplied to the battery (dl/dt) is monitored. The method includes calculating the ratio: K=Amp/(dl/dt) during the period in which a constant voltage is supplied, and when K equals a preselected value, maintaining the charging current at the instant value for an extended period of time.