Wireless bipolar electrodes boost zinc-air battery power density by 80%

Researchers at ICMAB-CSIC with ICN2 and the National University of La Plata added unconnected conductive metal elements to a zinc-air battery's electrolyte, creating wireless bipolar electrodes. Ohmic internal resistance dropped by up to 64%, volumetric power density rose by up to 80%, and limiting current density increased by over 50%.

• Ohmic internal resistance cut by up to 64%
• Volumetric power density up by up to 80%
• Limiting current density up by more than 50%
• Overpotential reduced by up to 300 mV