我国科学家成功开发出首例氢负离子原型电池

Core Insights - A new type of core-shell structured hydrogen negative ion electrolyte has been developed by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, marking a significant advancement in hydrogen energy technology [1][2] - Hydrogen negative ions, characterized by high electron density and strong reactivity, present a unique and promising energy carrier with substantial scientific and application potential [1] Group 1 - The research team initiated the study of hydrogen negative ion conduction in 2018 and introduced a strategy in 2023 to suppress lattice distortion for enhanced electron conductivity [1] - A novel composite hydride material was created by coating barium hydride (BaH2) with trihydride cerium (CeH3), demonstrating rapid hydrogen negative ion conduction at room temperature, along with excellent thermal and electrochemical stability [1] Group 2 - Utilizing the new hydrogen negative ion electrolyte, the team assembled the first prototype hydrogen negative ion battery using sodium aluminum hydride (NaAlH4) as the positive electrode and cerium dihydride (CeH2) as the negative electrode [2] - The prototype battery achieved a voltage of 1.9 volts and successfully powered an LED light, indicating the feasibility of hydrogen negative ion batteries for electronic devices [2] - This innovative energy storage technology has the potential to play a significant role in large-scale energy storage, hydrogen storage, mobile power sources, and specialized power applications in the future [2]