황장연 연구실

Energy storage technology is a critical option for the development of the large-scale substitution of wind, solar, or nuclear energy for the energy stored in fossil fuels. Up to date, rechargeable batteries have been emerging as one of the best candidates for the highly efficient energy storage technology because they can transcend the limitations of time and space. Rechargeable battery technologies offer high energy conversion efficiency where they are used as a distributed energy store in small portable electronics to electric vehicles. In the future, batteries that extend performance beyond the intrinsic limits of Li-ion batteries are among the most important developments required to continue the revolution promised by electrochemical devices. New battery technologies are sorely needed in energy-related fields and beyond. Since 2019, our group has been mainly developing the novel electrode and electrolyte materials for the next-generation rechargeable batteries. In the past decade, the interest in other alkali metal (Na and K) ion batteries have grown. There are different battery chemistries offering different advantages, of which Li-ion, Na-ion, and K-ion batteries are competing for the title of being battery of choice for grid scale energy storage. These chemistries are at different levels in their readiness to be commercialized and fully implemented as energy storage for the grid. For the development of advanced alkali-ion batteries, a key innovation proposed by our group is the synthesis of high energy and high-safety electrode materials. Currently, our group concentrate to develop the high safety olivine-type LiFe1-xMxPO4 (M = transition metals) cathode, high voltage Prussian Blue cathode, high capacity layered-type NaxMO2 cathode and high voltage layered-type K