A research team at the University of Science and Technology of China (USTC) has made significant strides in the development of hydrogen-based battery systems for energy storage and electric vehicles. The team's study, published in Angewandte Chemie International Edition, highlights the utilization of hydrogen gas as the anode in a new chemical battery system, deviating from traditional lithium derivatives. The researchers emphasize hydrogen's stability and cost-effectiveness as a renewable energy carrier, leveraging its favorable electrochemical properties. The innovative Li-H battery design expands the voltage range to 0.8-1.4 V, aiming to enhance energy storage capacity and operational efficiency. The USTC team's prototype exhibits a theoretical energy density of 2,825 watt-hours per kilogram and a steady operational voltage of around three volts, ensuring optimal performance. Their advanced battery model showcases a remarkable round-trip efficiency of 99.7%, signifying minimal energy dissipation during charging and discharging cycles. The researchers also introduce an anode-free Li-H battery variant that streamlines the lithium deposition process during charging by utilizing lithium salts like LiH2PO4 and LiOH. This approach eliminates the need for pre-installed lithium metal and offers additional benefits while maintaining the core advantages of the Li-H battery system. The team suggests that adopting hydrogen as the anode could transform the EV industry, enabling faster charging times, prolonged battery life, and improved overall performance. Overall, this groundbreaking research paves the way for sustainable energy solutions, emphasizing the potential of hydrogen-based batteries to revolutionize energy storage and electric vehicle technology.