【经济日报】我国科学家成功研发首例氢负离子原型电池

Core Insights - The research team from the Dalian Institute of Chemical Physics has developed a novel core-shell structure hydrogen negative ion electrolyte and successfully constructed the first prototype hydrogen negative ion battery, marking a significant advancement in this field [1][2] Group 1: Research Development - The research on hydrogen negative ion conduction began in 2018, leading to the introduction of a "lattice distortion suppression of electronic conduction" strategy in 2023, resulting in a room-temperature ultra-fast hydrogen negative ion conductor [2] - The team created a new composite hydride with low electronic conduction and high stability by coating unstable trihydride cerium with barium hydride thin layers, which exhibits rapid hydrogen negative ion conduction at room temperature along with excellent thermal and electrochemical stability [2] Group 2: Battery Performance - The prototype hydrogen negative ion battery was assembled using sodium aluminum hydride as the positive electrode and hydrogen-poor dihydride cerium as the negative electrode, achieving a discharge capacity of 984 mAh/g and maintaining 402 mAh/g after 20 charge-discharge cycles [2] - The team successfully built a stacked battery that increased the voltage to 1.9 volts, demonstrating the feasibility of powering electronic devices, such as lighting a yellow LED [2] Group 3: Future Prospects - The hydrogen negative ion battery represents a new energy storage technology path, with potential applications in large-scale energy storage, hydrogen storage, mobile power sources, and special power supplies [2] - The research team plans to focus on the development and optimization of core materials for hydrogen negative ion batteries, aiming to expand application scenarios and provide strong technical support for green energy development in China [2]