To limit global warming to 1.5 °C, drastically reducing CO2 emissions is crucial. Batteries play a key role in this, whether in electric vehicles, renewable electricity storage, or aviation. While lithium-ion technologies are paving the way, they face limitations in capacity and cost. Metal–air batteries, with the highest theoretical energy density, promise significant advances in energy storage if their practical challenges can be addressed. This review offers a thorough assessment of recent research on nonaqueous rechargeable metal–air batteries, focusing on Li–O2 cells and comparing them with Na–O2, K–O2, and Mg–O2 cells. The interdisciplinary nature of this field, involving materials chemistry, electrochemistry, and more, is highlighted. Key developments in electrodes, electrolytes, electrocatalysis, and the impact of singlet oxygen in Li–O2 cells are discussed. -Science journal cover design by scapiens
[Scientific Journal cover design] Low-Thermal-Budget Fluorite-Structure Ferroelectrics for Future Electronic Device Applications
In article number 2100028, Jiyoung Kim, Si Joon Kim, and their team review key factors involved in developing fluorite-structure ferroelectrics
