A research team at Pohang University of Science and Technology has developed an electrode material that charges Li-ion batteries up to 75% by synthesizing and applying porous inorganic materials in 6 minutes.
Pohang University of Science and Technology announced that a research team led by Professor Li Jinyu of the Department of Chemical Engineering has developed an electrode material that can be used to synthesize layered porous inorganic materials for lithium-ion batteries in a simple manner.
According to their size, the pore of a substance is divided into micropores (below 2 nm), mesopores (2 to 50 nm) and macropores (above 50 nm) The layered porous structure is composed of at least two of these three types of pores Structure.
The layered porous structure is effective for secondary batteries because of its large surface area and excellent transportability, but it is difficult to mass produce such materials because of the complicated procedure required to adjust different voids at the same time.
The team adjusted the solvent evaporation conditions and successfully synthesized porous inorganic materials by block copolymers and phase separation.
In addition to titanium and niobium oxide, the technology can also be used for various inorganic materials such as tungsten or titanium oxide, and the research group increases the ability of the electrode to penetrate the electrolyte to make lithium ions easier to send due to the broadened surface area of the oxidation and reduction processes , Charge faster.
Although layered porous inorganic materials have many advantages as energy electrode materials, they are materials that can not truly display science and technology due to the complicated synthesis process, "said Professor Li Jinyu." Through further research, we will find ways to make these Materials can also improve the performance of various energy electrode materials, not just lithium-ion secondary batteries.
