CATL has announced a breakthrough in lithium metal battery (LMB) technology through quantitative mapping, venturing into previously uncharted territory in electrolyte strategy. This pioneering research, published in Nature Nanotechnology, enables LMBs with both high energy density and extended cycle life, solving a long-standing challenge in the field. The optimised prototype has reached a cycle life of 483 cycles and can be incorporated into state-of-the-art designs to achieve an energy density of over 500 Wh/kg, marking a significant step toward commercial viability for applications like electric vehicles and electric aviation. (....)