我省研发出首例新型氢负离子原型电池

Core Insights - The research team from Dalian Institute of Chemical Physics has made significant advancements in the development of a new type of hydrogen negative ion prototype battery, recently published in the journal "Nature" [1][2] - Hydrogen negative ion batteries represent a novel energy storage technology with potential applications in large-scale energy storage, hydrogen storage, mobile power sources, and special power sources [1] Group 1: Research and Development - The hydrogen negative ion battery operates similarly to widely used lithium-ion batteries, utilizing the movement of hydrogen negative ions to store and release energy [1] - Previous challenges included the lack of electrolyte materials that could meet high ionic conductivity, low electronic conductivity, excellent thermal stability, electrochemical stability, and compatibility with electrode materials [1] - The research team initiated the study of hydrogen negative ion conduction in 2018 and proposed a strategy in 2023 to suppress electronic conduction through lattice distortion, leading to the development of a room-temperature superfast hydrogen negative ion conductor [1] Group 2: Material Innovation - The team created a new core-shell structured composite hydride by coating the less stable trihydride cerium with low electronic conduction and high stability barium hydride, which exhibits rapid hydrogen negative ion conduction at room temperature along with excellent thermal and electrochemical stability [1] - Utilizing this new hydrogen negative ion electrolyte material, the team assembled a prototype battery using sodium aluminum hydride as the positive electrode and hydrogen-poor dihydride cerium as the negative electrode, marking a significant transition from conceptualization to experimental validation of hydrogen negative ion batteries [2]