Future development technology and prospect analysis of lithium titanate battery

Lithium titanate battery technology is very advanced in the field of energy storage. It has the advantages of fast charging, long life, and low temperature resistance. It is especially suitable for fixed mileage or fixed line buses, terminal trailers and other vehicles. Lithium titanate batteries are still not considered the mainstream of battery technology. At present, ternary lithium batteries and lithium iron phosphate batteries are more commonly used by domestic automobile manufacturers. What is a lithium titanate battery? Lithium titanate battery is a lithium titanate used as a negative electrode material for lithium batteries. It can be combined with lithium manganate, ternary materials or lithium iron phosphate to form a 2.4V or 1.9V lithium ion secondary battery. In addition, it can also be used as a positive electrode to form a 1.5V lithium secondary battery with metallic lithium or lithium alloy negative electrode. Due to the high safety, high stability, long life and environmental protection characteristics of lithium titanate. Lithium titanate battery composition negative electrode: lithium titanate material diaphragm: lithium battery diaphragm with carbon as the negative electrode electrolyte: lithium battery electrolyte with carbon as the negative electrode Battery shell: lithium battery shell with carbon as the negative electrode Lithium titanate battery technology What are the future development prospects? Although the lithium titanate battery has poor rate performance and insufficient energy density, it has the advantage of fast charging. As its price becomes more reasonable and its charging facilities are becoming more and more complete, lithium titanate batteries are expected to occupy an important place in the field of power lithium-ion batteries in the future. It is known that in terms of actual use value, lithium titanate batteries are expected to bring lower cost advantages to customers by virtue of their ultra-long cycle life. As prices become more reasonable, lithium titanate is about to stage a counterattack. The future market space for lithium titanate batteries will be very limited. There is basically no room for the automobile industry, and the space for the automobile industry in the future will be smaller than it is now. The field of energy storage can be tried, but it will definitely not become the mainstream. Coupled with the high price, compared with the high cost performance of the future energy storage is expected to be used for the secondary use of power lithium-ion batteries, the prospect of lithium titanate in the field of energy storage is also worrying. Advantages and disadvantages of lithium titanate battery technology Lithium titanate battery has small size, light weight, high energy density, good sealing performance, no leakage, no memory effect, low self-discharge rate, rapid charge and discharge, long cycle life, and working environment It has wide temperature range, safety, stability, and environmental protection, so it has a very broad application prospect in the field of communication power supply. When the lithium titanate battery is used as a negative electrode material, the potential platform is as high as 1.55V, which is more than 1V higher than the traditional graphite negative electrode material. Although some energy density is lost, it also means that the battery is safer. Since the lithium titanate battery can be used safely in both high and low temperature environments, it also reflects its important advantage of wide temperature resistance (especially low temperature resistance). At present, the safe working temperature range of Yinlong lithium titanate battery is between -50 degrees and 65 degrees. Long cycle life. Compared with the graphite materials commonly used in traditional lithium batteries, the skeleton structure of lithium titanate battery materials hardly shrinks or expands during the process of charging and discharging lithium insertion and removal. It is called a zero-strain material, which prevents the removal/intercalation of general electrode materials. The problem of damage to the electrode structure caused by the volumetric strain of the unit cell during lithium ion. The last advantage of the lithium titanate battery is the fast charge and discharge capability and the high charge rate. At present, the charging rate of Yinlong lithium titanate batteries is 10C or even 20C, while the battery charging rate of ordinary graphite anode materials is only 2C-4C. Lithium titanate batteries will continue to produce gas during recycling, causing the battery pack to swell, especially at high temperatures, which affects the contact between the positive and negative electrodes, increases the battery impedance, and affects the performance of the battery. This is also one of the important obstacles restricting the wide application of lithium titanate as a negative electrode material in batteries. The process of nanometerization of lithium titanate battery material particles is often difficult and requires higher costs. At present, it is difficult to achieve large-scale industrial processing. Compared with other types of lithium-ion power lithium-ion batteries, the energy density of lithium titanate batteries is lower. The development status of lithium titanate battery technology at home and abroad In the past 10 years, 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 their applications in the electric vehicle and energy storage markets. Internationally leading companies in the research and industrialization of lithium titanate materials include the American Ao Titanium Nanotechnology Company, Japan's Ishihara Sangyo Co., Ltd., and the British Johnson Matthey Corporation. Among them, the lithium titanate material processed by American Austrian Titanium has excellent performance in terms of rate, safety, long life, high and low temperature. However, because the processing method is too long and delicate, the processing cost is too high, making it difficult to commercialize. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. 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