Concept art of the bias distribution (IMAGE) Science China Press Caption The bias distribution of the anode and cathode in the PEC overall reaction cell is like two trays of the balance, and the fulcrum corresponds to the short-circuit potential of the PEC cell. Credit ©Science China Press Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.