The research team of Pohang University of Science and Technology has developed a new electrode material. With this material, a lithium-ion battery can be fully charged with 75% of its power in 6 minutes.

　　The research team is led by Lee Jin-woo, a professor in the Department of Chemical Engineering. Pohang University of Science stated in a statement that this electrode material can be used in lithium-ion batteries. Researchers have found a simpler way to synthesize layered porous inorganic materials.

　　The pores on the material are divided into small pores, and these small pores are divided into three types, small pores (below 2 nanometers), mesopores (2-50 nanometers), and macropores (over 50 nanometers). The layered porous structure contains at least two of the three types of pores.

　　This material is particularly suitable for use in batteries, because its surface area is relatively wide and it has an excellent effect in transferring chemicals. The problem is that mass production is a bit difficult because the procedure is complicated and various holes need to be adjusted at the same time.

　　The research team controlled the evaporation conditions of the solvent to generate bulk copolymers and complete the phase separation at the same time, so as to synthesize porous inorganic materials.

　　In addition to titanium niobium oxide, we can also apply this technology to a variety of inorganic materials, such as tungsten and titanium dioxide. The research team found a way to increase the penetration of the electrolyte in the electrode so that it would be easier to transport lithium ions. Because the oxidized and reduced surface area becomes wider, the charging speed is faster.

　　Professor Lee Jin-woo said: “Although layered porous inorganic materials have many advantages as energy electrodes, they cannot really demonstrate their strengths because of the complex synthesis process. We will further research and find ways to use new materials to enhance various The performance of energy electrode materials is not limited to lithium-ion batteries."