South Korea develops new sodium-ion battery anodes, manufacturing costs are expected to drop by 40%

　　Research and analysis also pointed out that after crystallographic adjustment of copper sulfide, room can be left for sodium insertion reaction (room). The test results show that copper sulfide is The insertion capacity of sodium metal ions is about 1.5 times higher, and the initial capacity can be maintained at 90% after 250 charge and discharge cycles.

　　Lithium-ion batteries are the mainstream of today’s energy storage technology and have been widely used in various 3C products and electric vehicles. However, the content of lithium metal only accounts for 0.06% of the earth’s crust. The safety nature is criticized, so in addition to improving battery performance and reducing costs, there are also teams looking for batteries other than lithium-based.

　　Among them, sodium ion battery (SIB) is a rising star. Because sodium and lithium metal are both alkaline metals and have similar physical and chemical properties, lithium ion battery technology and materials can be used for sodium batteries, but sodium ion batteries have capacity and anode cycle stability Problem, there is still huge room for growth. Recently, the Korea Institute of Science and Technology (KAIST) has successfully developed copper sulfide anode sodium ion batteries, which is expected to further reduce overall battery production costs and increase capacity, and allow sodium ion batteries to move towards commercialization.

　　JongMinYuk and JeongYongLee of the KAIST Institute of Materials Science and Engineering jointly developed an anode material suitable for sodium ion batteries. In research and testing, the copper sulfide anode cycle performance is 1.5 times higher than that of the old material, and the manufacturing cost is expected to be reduced. 40%.

　　The research team has always been committed to seeking anode materials with high conductivity and high theoretical capacity, and selected copper sulfide nanoplates. The team believes that the compound is easy to form alloys with sodium, so it is expected to increase battery capacity and Lengthen cyclicality.

　　Research and analysis also pointed out that after crystallographic adjustment of copper sulfide, room can be left for sodium insertion reaction (room). The test results show that copper sulfide is The insertion capacity of sodium metal ions is about 1.5 times higher, and the initial capacity can be maintained at 90% after 250 charge and discharge cycles.

　　South Korea's research and development of new sodium-ion battery anode manufacturing costs are expected to drop by 40%

　　In addition, sodium-ion batteries have one of the greatest benefits, that is, the crust content is as high as 2.6%, and the content is the sixth largest. The development of sodium-ion batteries can help reduce the overall battery cost, especially for 3C products, the battery cost accounts for 30% overall.

　　Yuk pointed out that in recent years, South Korea has experienced air quality problems, and people have shown great interest in renewable energy-related products. Therefore, this research can allow South Korea to take the lead in energy products.