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:
Dec. 13, 2005
Filed:
Jun. 21, 2000
Stéphane Lascaud, Fontainebleau, FR;
Eric Baudoin, Veneux les Sablons, FR;
Eric Bettega, Le Fontanil Cornillon, FR;
Michel Barrault, St Christophe en Oisans, FR;
Stéphane Lascaud, Fontainebleau, FR;
Eric Baudoin, Veneux les Sablons, FR;
Eric Bettega, Le Fontanil Cornillon, FR;
Michel Barrault, St Christophe en Oisans, FR;
Electricite de France-Service National, Paris, FR;
Schneider Electric Industries S.A., Rueil-Malmaison, FR;
Abstract
In a method of charging several electrochemical cellsconnected in series, by a chargerwhich allows adjusting the voltage and the charging current, the voltage of each cell is detected permanently, and when a first cell reaches a predetermined threshold voltage, an increment of the charging current is applied to several cellsand simultaneously a shunt resistor of a current equivalent to the increment in the charging current of the several said cellsis connected in parallel to said first cell, and when each of the subsequent cells reaches the threshold voltage, a shunt resistor of a current equal to the increment in charging current of said several cellsis also connected in parallel to this cell. The invention is applicable to the use of accumulator systems for powering electric vehicles and thermal vehicles with self-contained electric mode.