Detailed explanation of lithium titanate new lithium battery anode material and advantages analysis

The research and use of new anode materials have also begun to attract the attention of the industry, and new anode materials for lithium titanate batteries are a very important direction. Lithium titanate has some unparalleled advantages over other anode materials. As a negative electrode material for power lithium batteries, it has great research value and potential for commercial use. Due to the defects in the performance of traditional graphite materials, new negative electrode materials such as silicon-carbon composite materials and lithium titanate have also received extensive attention from the lithium battery industry. Lithium titanate has become the research hotspot of anode materials for new lithium batteries due to its excellent safety, ultra-long cycle performance, fast charge and discharge, and ultra-wide high/low temperature performance, and its application prospects are also expanding. Lithium titanate battery.jpg Lithium titanate with a spinel structure is considered to be one of the most promising anode materials for lithium batteries due to its extremely high cycle life and safety characteristics. Combining highly conductive, environmentally friendly, chemically and thermally stable, and structurally diverse carbon materials with lithium titanate to form a composite negative electrode material can effectively improve the conductivity of the material while inhibiting flatulence, which is critical to the optimization of electrode material performance use. Compared with graphite anode, lithium titanate has a higher lithium insertion potential, which can effectively guard against the precipitation of metallic lithium and the formation of lithium dendrites. Lithium titanate and Li7Ti5O12 in the lithium-intercalated state have much higher thermodynamic stability than graphite, and are not easy to cause thermal runaway of the battery, thus having higher safety. At the same time, during the process of insertion and extraction of lithium ions, lithium titanate has almost no change in lattice parameters, and the crystal structure can maintain a high degree of stability. It is a zero-strain material and therefore has excellent cycle stability. In addition, lithium titanate also has excellent low-temperature performance, fast charging capability, and high cost performance, so it has a good application prospect in large-scale energy storage and other fields. Research on lithium titanate battery technology at home and abroad can be described as surging. Its industrial chain can be divided into the preparation of lithium titanate materials, the integration of lithium titanate battery processing and lithium titanate battery systems, and its use in the electric vehicle and energy storage market. There have been many domestic mass production of lithium titanate materials, such as Sichuan Xingneng New Materials Co., Ltd., Zhuhai Yinlong New Energy Co., Ltd., Huzhou Weihong Power Co., Ltd., Shenzhen Beterui New Energy Materials Co., Ltd., Hunan Shanshan New Material Co., Ltd. and many small-scale lithium titanate battery processing manufacturers around Anhui and Shenzhen. Four advantages of lithium titanate battery 1. Good safety and stability. Due to the high lithium intercalation potential of lithium titanate anode materials, the generation and precipitation of metallic lithium are guarded during the charging process. Because its equilibrium potential is higher than the reduction potential of most electrolyte solvents, it does not react with the electrolyte and does not form solids. The passivation film on the liquid interface guards against the occurrence of many side reactions, thereby greatly improving the safety. 2. Excellent fast charging performance. Lithium titanate batteries can overflow in about ten minutes, a qualitative leap from traditional batteries. 3. Long cycle life. Compared with the graphite materials commonly used in traditional lithium batteries, lithium titanate materials hardly shrink or expand during the process of charging and discharging lithium insertion and removal. They are called zero-strain materials, and are guarded for the removal/intercalation of lithium from general electrode materials. The problem of damage to the electrode structure caused by the volume strain of the unit cell during ionization, and thus has very excellent cycle performance. 4. Good performance in wide temperature resistance. Lithium titanate batteries can be charged and discharged normally at -40°C to 70°C. Whether in the icy northern country or in the hot south, the vehicle will not be affected by battery shock, eliminating the user's worries. The existing lithium titanate battery technical method uses a combination of ternary materials or lithium manganate for the positive electrode and lithium titanate for the negative electrode. Lithium titanate has a relatively high potential and a special structure, which can guard against lithium dendrites due to reduction reactions of lithium ions during the charging process, and guard against short-circuit and other safety issues. It is a relatively safe battery. Lithium titanate is an ideal intercalation electrode material. It has the characteristics of many times of charging, fast charging process, and safety, making it a hot spot in the research of new lithium battery anode materials. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: Analysis of methods for distinguishing lithium batteries