Platinum group metals-based electrodes for high-performance lithium-oxygen batteries: A mini-review

In the realm of energy storage, the evolution of lithium-oxygen (Li-O2) batteries has garnered substantial attention, owing to their potential to revolutionize electric vehicles. For a long time, ideas for sustainable development have positioned platinum group metals (PGMs) as potentially revolutionary, especially in the automotive industry. Intended to enhance Li-O2 battery performance, PGMs are appealing due to their catalytic activities and this might be a big step forward for the electrification automotive industry and possibly pave the way for longer-lasting batteries used for reasons other than transportation. Therefore, this review explores progressions in PGMs-based electrocatalysts used as electrode materials for Li-O2 batteries, starting with an overview of the Li-O2 battery principle and its challenges. It then examines in detail the utilization of PGMsbased electrocatalysts as electrode materials for improving Li-O2 battery performance. Finally, it addresses the remaining hurdles preventing the full integration of PGMs into battery technologies, offering insights into the current status and future possibilities for PGMs in Li-O2 battery technology.