What are the characteristics of lithium titanate batteries

Lithium titanate battery has the advantages of 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, safe and stable green Environmental protection and other characteristics, so it has a very wide range of application prospects in the field of communication power supply. When lithium titanate is used as an anode material, the potential platform is as high as 1.55V, which is more than 1V higher than traditional graphite anode materials. Although some energy density is lost, it also means that the battery is safer. Technical expert Lu Languang once said that the negative electrode voltage requirement is relatively low when the battery is charged quickly, but if it is too low, the lithium ion battery will easily precipitate very active metallic lithium. This lithium ion not only conducts electricity, but also reacts with the electrolyte. Then it releases heat and generates combustible gas, causing a fire. Because of the higher voltage of 1V, lithium titanate prevents the negative electrode voltage from being zero, which indirectly prevents the precipitation of lithium ions, thereby ensuring the safety of the battery. 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°C and 65°C, while the energy of ordinary graphite negative battery starts to decay when the temperature is lower than -20°C, and the charging capacity is only at -30°C. It is 14% of the total charging capacity, and it cannot work at all in severe cold weather. In addition, even if the lithium titanate battery is overcharged, there is only a 1% volume change, which is called a zero-strain material, which makes it have an extremely long life. Yinlong's chairman Wei Yincang once said that Yinlong's lithium-ion titanate battery has a lifespan of up to 30 years, which is equivalent to the life of a car, while the average life of ordinary graphite anode material batteries is only 3-4 years. From the perspective of the full life cycle, the cost of lithium-ion titanate batteries is lower. The last advantage of lithium titanate is its fast charge-discharge capability and high charge rate. At present, the charging rate of Yinlong lithium-ion titanate batteries is 10C or even 20C, while the battery charging rate of ordinary graphite anode materials is only 2C-4C. Based on these technical characteristics of lithium titanate batteries, the industry believes that it meets the needs of new energy buses and large-scale energy storage equipment. Take a bus as an example. Generally, a single trip has a mileage of no more than 4 kilometers, and it takes at least a few minutes to wait for each terminal to enter the station until the next departure. At this time, the disadvantage of low energy density of lithium titanate batteries will not affect the use of passenger cars, but instead reflects the benefits of fast charging of batteries. As a means of public transportation, buses have put forward higher requirements on the safety and durability of batteries. 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: Introduce some tips for maintaining electric vehicles