Briefly describe the research direction of lithium battery anode materials

The research direction of lithium battery anode materials Anode materials have multiple performance indicators such as gram capacity, rate performance, cycle life, first efficiency, compaction density, expansion, specific surface area, etc., and it is difficult to balance them, such as large particles with good compaction density and high gram capacity , But the magnification performance is not good; the small particles are vice versa. Anode manufacturers should optimize the processing technology to improve the overall and comprehensive performance of the material. As one of the key materials of lithium batteries, the negative electrode material accounts for 10% of the cost of the battery. The market for new energy vehicles and power lithium batteries continues to rise rapidly, driving the output of lithium battery anode materials to continue to rise. According to relevant data, the global demand for anode materials in 2018 reached 170,000 tons, of which the demand for power lithium-ion batteries exceeded the demand for consumer batteries, reaching 75,000 tons, accounting for 44%. It is estimated that by 2020, the global demand for negative electrode materials will exceed 300,000 tons, of which demand for negative electrode materials for power lithium-ion batteries will exceed 183,000 tons, accounting for up to 61%. The research and development of emerging anode materials has become an important direction to improve the energy density of lithium batteries. A few days ago, a technology using silicone as a lithium battery material has been developed. The power storage capacity is 10 times that of carbon materials. Many companies in my country are conducting research on using lithium titanate as a lithium battery anode material, which has also improved the cycle life of lithium batteries. And high and low temperature performance. The breakthrough point of battery capacity is often in materials. Because lithium-ion power lithium-ion batteries have continuously improved performance requirements, high-capacity, high-safety, good stability, and low-cost anode materials have become a hot topic of research and discussion. From the perspective of anode materials, the current carbon anode materials reach 360mAh/g, and there is little room for improvement. In this context, new large-capacity anode materials have emerged. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete it. Previous article: Do lithium batteries need to protect the board?