FLOW BATTERY BUBBLE DETECTION SYSTEM

A flow battery bubble detection system includes a flow battery having a cathode and an anode circulation flow path, an electrochemical cell and an exchange membrane. A portion of the cathode or the anode circulation flow path is formed as a light-transmissible flow path section. A detection device includes a light source, a receiving unit and a detection unit. The light source and receiving unit are connected to the detection unit and respectively arranged on opposite sides of the light-transmissible flow path section so that a detection light of a single wavelength emitted from the light source travels through the light-transmissible flow path section and is received by the receiving unit. The receiving unit outputs a detection voltage signal to the detection unit corresponding to the received detection light. The detection unit detects bubbles in the electrolyte flowing through the light-transmissible flow path section based on the detection voltage signal.