Towards Advanced Rechargeable Metal (Zn, Li)-air (O2) Battery Systems Using Electrode and Electrolyte Engineering

Utilizing a diverse mix of batteries in electric vehicles (EVs) is estimated to boost the transition to clean and fossil-free cost-effective transportation. This discussion is mainly on the advancement of a ‘next-generation’ energy storage system called- Metal-Air Batteries (MABs) by overcoming various performance-limiting issues related to their electrodes and electrolytes, where MABs are identified as one of the important elements of next-generation traction. This study highlights the significance of engineering the electrodes and electrolytes for improving the cyclability of MABs with low overpotential for charging. Different strategies set out here open a plethora of new routes in designing high-performance MAB systems by simple tweaking of electrodes/electrolytes.