What are the future development prospects of lithium titanate battery technology? 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 models. Lithium titanate batteries are still not the mainstream of battery technology. At present, ternary lithium batteries and lithium iron phosphate batteries are mostly used by domestic automobile manufacturers.

　　What is lithium titanate battery?

　　Lithium titanate battery is a kind of lithium titanate used as the negative electrode material of lithium batteries. It can be combined with lithium manganate, ternary materials or lithium iron phosphate and other positive electrode materials 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 green environmental protection characteristics of lithium titanate.

　　Composition of lithium titanate battery

　　Negative electrode: lithium titanate material

　　Separator: Lithium battery separator with carbon as negative electrode

　　Electrolyte: lithium battery electrolyte with carbon as the negative electrode

　　Battery case: lithium battery case with carbon as negative electrode

　　What are the future development prospects of lithium titanate battery technology?

　　Although lithium titanate batteries have poor rate performance and low energy density, they have the advantage of fast charging. As their prices become increasingly reasonable and charging facilities become increasingly complete, lithium titanate batteries are expected to occupy an important place in the power battery field in the future.

　　It is understood that from the perspective of actual use value, lithium titanate batteries are expected to bring lower cost advantages to customers with their ultra-long cycle life. As prices become increasingly reasonable, lithium titanate is about to stage a counterattack. The future market space of lithium titanate batteries will be very limited. There is basically no space for the automobile industry, and the space for the automobile industry in the future will be even smaller than it is now. You can try it in the energy storage field, but it will definitely not become mainstream. Coupled with the high price, compared with the high cost performance of future energy storage that is expected to be used for secondary use in power batteries, the prospects of lithium titanate in the energy storage field are 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, wide working environment temperature range, safety, stability, green and environmental protection and other characteristics, so it has very broad application prospects in the field of communication power supply.

　　When lithium titanate batteries are used as negative electrode materials, the potential platform is as high as 1.55V, which is more than 1V higher than traditional graphite negative electrode materials. Although some energy density is lost, it also means that the battery is safer.

　　Because lithium titanate batteries can be used safely in both high and low temperature environments, it also reflects its important advantage of being able to withstand wide temperatures (especially low temperatures). Currently, the safe operating temperature range of Yinlong lithium titanate batteries is between -50 degrees and 65 degrees.

　　Long cycle life. Compared with the graphite material commonly used in traditional lithium-ion batteries, the skeleton structure of lithium titanate battery materials hardly shrinks or expands during the charging and discharging process of inserting and removing lithium. It is called a "zero strain" material and avoids the need for general electrode materials. The problem of electrode structure damage caused by unit cell volume strain during removal/insertion of lithium ions.

　　The last advantage of lithium titanate batteries is their strong fast charge and discharge capabilities and high charging rate. At present, the charging rate of Yinlong lithium titanate batteries is 10C or even 20C, while the 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 bulge. This is especially serious at high temperatures, affecting the contact between the positive and negative electrodes, increasing battery impedance, and affecting battery performance. This is also one of the main obstacles limiting the widespread application of negative electrode material lithium titanate in batteries.

　　The process of nanometerizing lithium titanate battery material particles is often difficult and requires high costs. It is currently difficult to achieve large-scale industrial production.

　　Lithium titanate batteries have lower energy density than other types of lithium-ion power batteries.

　　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 has been surging. Its industrial chain can be divided into lithium titanate material preparation, lithium titanate battery production and integration of lithium titanate battery systems and its application in the electric vehicle and energy storage markets.

　　International leaders in the research and industrialization of lithium titanate materials include American Altitanium Nanotechnology Company, Japan's Ishihara Industrial Co., Ltd., and the British Johnson Matthey Company, etc. Among them, the lithium titanate material produced by American Altitanium has excellent performance in terms of magnification, safety, long life and high and low temperature. However, because the production method is too lengthy and sophisticated, the production cost is high, making it difficult to promote commercially.

　　There are not many manufacturers capable of mass-producing lithium titanate batteries in the world, mainly represented by the American Austrian Titanium and Japan's Toshiba Group. The application markets of lithium titanate batteries mainly include electric vehicles, energy storage market and industrial applications.

　　There are many domestic manufacturers of lithium titanate batteries, such as Huzhou Weihong, Zhuhai Yinlong, Shenzhen Bolida, Tianjin Jiewei Power Industry Co., Ltd., Sichuan Xingneng, CITIC Guoanmeng Guli Power Technology Co., Ltd. There are many smaller lithium titanate battery manufacturers in Shanshan, Hunan and around Anhui and Shenzhen.

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