The future development prospects of lithium titanate battery technology

by:CTECHi     2021-07-20

What is the future development prospect 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 vehicles. Lithium titanate batteries are still not 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. Composition of lithium titanate battery Negative electrode: lithium titanate material diaphragm: lithium battery diaphragm with carbon as negative electrode Electrolyte: lithium battery electrolyte with carbon as negative electrode Battery shell: lithium battery shell with carbon as 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 become more and more complete, lithium titanate batteries are expected to occupy an important place in the field of power batteries 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 by virtue of their 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 energy storage field 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 use power batteries, the prospect of lithium titanate in the energy storage field 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 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-ion batteries, lithium titanate battery materials hardly shrink or expand in the skeleton structure during the charging and discharging process of lithium insertion and removal. They are called 'zero strain' materials, which avoids general electrode materials. The problem of damage to the electrode structure caused by the volumetric strain of the unit cell when lithium ions are extracted/intercalated. 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 battery 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 main obstacles restricting the wide application of lithium titanate as a negative electrode material to 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 production. Compared with other types of lithium-ion power batteries, the energy density of lithium titanate batteries is lower. The development 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 production and lithium titanate battery systems, and its application in the electric vehicle and energy storage market. Internationally leading companies in the research and industrialization of lithium titanate materials include American Otita Nanotech, Japan Ishihara Sangyo Co., Ltd., and British Johnson Matthey Corporation. Among them, the lithium titanate material produced by American Austrian Titanium has excellent performance in terms of rate, safety, long life, high and low temperature. However, the production cost is too high due to the excessively lengthy and detailed production method, making it difficult to commercialize. There are not many manufacturers that can mass produce lithium titanate batteries in the world, mainly represented by the United States Austrian Titanium and Japan's Toshiba Group. The application markets of lithium titanate batteries mainly include electric vehicles, energy storage markets and industrial applications. There are many domestic companies in the production of lithium titanate batteries, such as Huzhou Weihong, Zhuhai Yinlong, Shenzhen Boleida, Tianjin Gateway Power Industry Co., Ltd., Sichuan Xingneng, CITIC Guoan Mengguli Power Technology Co., Ltd., Many smaller lithium titanate battery manufacturers in Shanshan, Hunan, Anhui and Shenzhen. The above is an introduction to the future development prospects of lithium titanate battery technology. Lithium titanate batteries are used in power generation, power supply, and user side due to the characteristics of high safety, fast response, long life, and low cost. Today, a lithium titanate energy storage ecosystem with an emerging structure is clearly visible.

Custom message
Chat Online 编辑模式下无法使用
Chat Online inputting...