The cost of anode manufacturing of new sodium ion batteries in South Korea is expected to drop by 40 %

Lithium-ion batteries are the mainstream of energy storage technology today and have been widely used in various types of 3C products and electric vehicles. However, the lithium metal content only covers 0.06 of the shell, and in recent years, the demand has greatly increased, resulting in an increase in the price of raw materials, plus safety. The nature of human criticism, Therefore, in addition to improving battery performance and reducing costs, there are also teams looking for batteries other than lithium.

Among them, the sodium ion battery(SIB) is a rising star. Since sodium and lithium metal are both base metals, the physicochemical values are similar. Lithium-ion battery technology and material parts can be used for sodium batteries, but sodium ion batteries have capacity and anode cycle stability. problem, There is still great room for growth. Recently, the Korea Institute of Science and Technology(KAIST) successfully developed copper sulfide anode sodium ion batteries, which is expected to further reduce the overall battery production cost and increase capacity, and allow sodium ion batteries to move toward commercialization.

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

The research team has been working on the search for anode materials with high conductivity and high theoretical capacity, and selected nano-plates of copper sulfide. The team believes that this compound is easy to form an alloy with sodium, so it is expected to increase the battery capacity. And elongated circulation.

The study also pointed out that after adjusting the copper sulfide by crystallographic, it can leave room for the sodium insertion reaction. The test results show that compared with the lithium ions in the graphite, the copper sulfide The sodium metal ion implantation ability is about 1.5 times higher, and the initial capacity can be maintained at 90% after 250 charge and discharge cycles.

The cost of anode manufacturing of new sodium ion batteries in South Korea is expected to drop by 40 %

And one of the biggest benefits of sodium ion batteries is that the crust content is as high as 2.6 %, and the content is ranked sixth. The development of sodium ion batteries helps to reduce the overall battery cost, especially for 3C products, the battery cost accounts for the overall 30 %.

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, the study can be used to allow South Korea to take the lead in energy products.

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