DETECTION OF DISCONNECTION OF A CELL IN AN ELECTRIC BATTERY

摘要

The invention relates to a device (200) comprising: a battery (110) having at least one first stage (Ei) comprising a plurality of cells (Ci,j) connected in parallel by way of first (ri) and second (ri+1) conducting rails, at least one of the first (ri) and second (ri+1) rails comprising at least one circuit breaker (Dk) situated on a portion of the rail connecting two neighbouring cells (Ci,j, Ci,j+1) of the stage; and a control circuit (220) comprising a first voltage sensor (Vi) connected between a first end (Ai) of the first rail (ri) and a first end (Ai+1) of the second rail (ri+1), and a second voltage sensor (Vi ') connected between a second end (Fi) of the first rail (ri) and a second end (Fi+) of the second rail (ri+), the control circuit (220) being adapted for comparing output values of the first (Vi) and second (Vi ') sensors.