The advantages of lithium titanate battery pure electric buses: high safety, good performance and long-life anode material, which is the best choice for solving urban environmental pollution.
Disadvantages of pure electric buses equipped with lithium titanate batteries: lithium dendrites are easily precipitated when overcharged, causing a short circuit in the battery and affecting the safety performance of the battery at the same time. lithium, it is easy to cause its decomposition; electrolyte, thereby causing safety hazards; Poor cycle stability.
Compared with carbon materials, the advantages of lithium titanate batteries are:
1. It is a stress-free material with good cycle performance.
2. The discharge voltage is stable and the electrolyte will not decompose, thereby improving the safety performance of lithium batteries.
3. Compared with carbon anode materials, lithium titanate has a high lithium ion diffusion coefficient (2*10-8 cm2/s) and can be charged and discharged at high rates.
4. The potential of lithium titanate is higher than that of pure lithium metal, and it is less likely to produce lithium dendrites, which provides a basis for ensuring the safety of lithium batteries.
What is lithium titanate battery?
Yes, lithium titanate has the characteristics of charge and discharge high current and stress-free. It is particularly suitable for use. as a battery source and has a long service life. The only downside is that the energy density is a bit low. It is only 2/3 of ordinary lithium batteries in the same volume or weight. But it's better than lead acid batteries. In addition, the current technology is not very mature and the cost is a bit high.
As a negative electrode material for lithium-ion batteries, lithium titanate can be combined with positive electrode materials such as lithium manganate, ternary materials or iron phosphate lithium to form a secondary 2.4 V or 1.9 V lithium-ion battery. In addition, it can also be used as a positive electrode to form a 1.5V lithium secondary battery with a lithium metal or lithium alloy negative electrode. Due to the high safety, high stability, long service life and ecological environmental protection characteristics of lithium titanate. It is foreseeable that lithium titanate will definitely become the anode material of the new generation of lithium-ion batteries within 2-3 years and will be widely used in new energy vehicles, electric motorcycles and products requiring high high security, high stability and a cylong key. Application areas. The working voltage of the lithium titanate battery is 2.4V, the maximum voltage is 3.0V, and the charging current is more than 2C.