The front cover artwork provided by Prof. Kisuk Kang’s group at the Materials Science and Engineering of Seoul National University illustrates how a bifunctional catalyst (depicted as a tunnel) reduces polarization (shown as congested roads) during both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) in Li-O2 battery operation. For more detailed insights, refer to the Minireview by Y. Bae et al. -Scientific Journal cover design by scapiens

https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/batt.201900040