CELL DAMAGE DETECTING DEVICE FOR REDOX-FLOW CELL

摘要

PURPOSE:To make a redox-flow cell system compact and low-cost by detecting and comparing voltage and/or current of each cell stack to detect the damage of a cell. CONSTITUTION:Cells 11-18, 21-28 constituting a stack are grouped in the first group and the second group, and connected to a voltage comparing circuit 3a. The sum of voltage of cells 11a-18a is applied to one terminal of the voltage comparing circuit 3a and the sum of voltage of cells 21a-28a is applied to the other terminal through a reversing circuit 4a. When a cell is damaged, the difference arises between the voltage of the first group and that of the second gronp, and the voltage comparing circuit 3 outputs a signal which indicates the damage of the cell.