Analysis of the advantages and disadvantages of lithium titanate batteries and their prospects

Advantages of lithium titanate batteries 1. Good safety: The most important point of electric vehicle batteries is the need for high safety. Because of its high equilibrium potential, lithium titanate does not form lithium dendrites on the negative electrode, and has good safety. 2. Good circulation function: Because it is a zero-strain material, it will not undergo structural changes during the charging and discharging process, and has a very superior circulation function. 3. It can charge and discharge quickly: the diffusion coefficient of lithium ions in lithium titanate crystals is 2u0026TImes;10-8cm-2/s, which is an order of magnitude more than that of graphite anodes. It can charge and discharge quickly. The fast charging ability is for investigating electric vehicle batteries. An important indicator. 4. The operating temperature range is -30℃~60℃: the insertion and extraction capacity of lithium will decrease at low temperatures, especially the insertion capacity. The lithium titanate negative electrode will not cause short circuit or deteriorate the negative electrode when charged at -30℃. Lithium dendrites are present, which is not possible with graphite anodes. They can be quickly charged and discharged in a wide range of environments, and are suitable for automotive applications. 5. Low self-discharge: The positive electrode uses conventional lithium manganate and the negative electrode uses lithium titanate. The capacity remaining rate of 28 days at 60 degrees is 88%, and the capacity recovery rate is more than 95%. Disadvantages of lithium titanate batteries 1. Compared with other types of lithium-ion power lithium-ion batteries, the energy density will be lower. 2. The flatulence problem has always hindered the use of lithium titanate batteries. 3. Compared with other types of lithium-ion power lithium-ion batteries, the price is relatively high. 4. There are still differences in battery consistency, which will gradually increase as the number of charge and discharge increases. Lithium titanate battery application prospects Lithium titanate anode lithium batteries will be developed in the following areas: (1) Replace zinc-manganese and alkaline-manganese primary batteries, saving wealth for the society; (2) Replace nickel-cadmium and nickel-metal hydride small secondary batteries , Durable; (3) lithium-ion batteries for electric bicycles and electric motorcycles; (4) replace 5 Ah Ni-MH batteries for HEV vehicles; (5) light special-purpose vehicles and small commuter vehicles; (6) Energy storage for homes and grids. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Important performance indicators of battery performance