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:
Nov. 12, 2013
Filed:
Jul. 10, 2009
Narayana Prakash Saligram, Bangalore, IN;
Sreejakumar Sreekantan Nair, Karnataka, IN;
Ramakrishnan Madenoor Krishnan, Karnataka, IN;
Milind Dighrasker, Karnataka, IN;
Narayana Prakash Saligram, Bangalore, IN;
Sreejakumar Sreekantan Nair, Karnataka, IN;
Ramakrishnan Madenoor Krishnan, Karnataka, IN;
Milind Dighrasker, Karnataka, IN;
Schneider Electric IT Corporation, West Kingston, RI (US);
Abstract
Disclosed are methods for charging batteries utilizing a charge balance approach, and charger systems using those methods. In one example, a method for charging a battery includes monitoring an amount of charge released by the battery while in a discharge state, recording the amount of charge released while in the discharge state, applying a voltage which results in current in reverse direction to the battery at a first voltage level for a time sufficient to introduce an amount of charge substantially equal to the recorded amount of charge released by the battery while in the discharge state, and maintaining the battery in a stand-by mode by applying a voltage which results in current in reverse direction to the battery at a second voltage level, the second voltage level being in a range sufficient to prevent self-discharge of the battery and insufficient to induce evaporation of electrolyte in the battery.