Recently, the team of researchers Chen Ping, Cao Hujun and Zhang Weijin from the Chinese Academy of Sciences Dalian Institute of Chemical Physics have made important progress in the development and application of hydrogen anion conductors, and successfully developed a new type of hydrogen anion prototype battery. The relevant results were published on September 17th in the authoritative academic journal Nature. Hydrogen negative ion batteries represent a new energy storage technology path, which is expected to play an important role in large-scale energy storage, hydrogen storage, mobile power, special power and other fields. Similar to the widely used lithium-ion batteries, hydrogen negative ion batteries utilize the movement of hydrogen negative ions to store and release energy. However, due to the lack of electrolyte materials that can simultaneously meet high ion conductivity, low electron conductivity, excellent thermal and electrochemical stability, as well as good compatibility with electrode materials, hydrogen negative ion batteries were still in the conceptual stage. In 2018, a research team initiated research on hydrogen negative ion conduction and proposed the strategy of "lattice distortion suppression of electronic conductivity" in 2023, developing a room temperature ultrafast hydrogen negative ion conductor. On this basis, the research team encapsulated the poorly stable cerium trihydroxide with a thin layer of low electron conductivity and high stability barium hydride to form a new core-shell structure composite hydride. This material exhibits rapid hydrogen negative ion conductivity at room temperature and has excellent thermal and electrochemical stability, making it an ideal electrolyte material. Based on the aforementioned new hydrogen negative ion electrolyte materials, the team utilized the classic hydrogen storage material sodium aluminum hydride as the positive electrode and hydrogen depleted cerium hydride as the negative electrode to assemble a new prototype hydrogen negative ion battery, marking a leap from the concept of hydrogen negative ion batteries to experimental verification by Chinese researchers. (New Society)