The University of Science and Technology of China (USTC) has introduced a groundbreaking advancement in energy storage through a new hydrogen EV battery system. Unlike traditional lithium-based batteries, this innovative Li-H battery utilizes hydrogen gas as the anode, significantly improving energy density and working voltage. The prototype battery demonstrated an extraordinary energy density of 2825 Wh/kg with a stable voltage of three volts, along with an impressive round-trip efficiency of 99.7%. Additionally, the team developed an anode-free version that eliminates the need for pre-installed lithium metal, offering enhanced lithium plating efficiency and stability even at low hydrogen concentrations. This development paves the way for more cost-effective and scalable hydrogen-based batteries, presenting new opportunities for renewable energy systems, electric transportation, and aviation. The Li-H battery system promises to revolutionize energy storage technology and drive the transition towards a decarbonized world.