METHOD AND DEVICE FOR CHARGING SEVERAL ELECTROCHEMICAL CELLS

摘要

The invention concerns a method for charging several electrochemical cells (5, 6, 7), connected in series, to a charger (1) for adjusting the voltage and the charging current. The method consists in: permanently detecting the voltage of each cell and when a first cell reaches a predetermined voltage threshold, applying an increment to the charging current of said several cells (5, 6, 7) and simultaneously connecting in parallel to said first cell, a shunt arm of a current equivalent to the increment of the charging current of said several cells (5, 6, 7) and when each of the following cells reaches said voltage threshold, connecting also in parallel to said cell, a shunt arm of a current equivalent to the increment of the charging current of said several cells (5, 6, 7). The invention is applicable to the use of accumulator systems for powering electric vehicles and thermal vehicles with self-contained electric mode.