In high-end applications where cost is not the primary concern, lithium titanate batteries (LTO batteries) are typically chosen. Whether it's cycle life, charge-discharge performance, or low-temperature resistance, there are no issues with LTO batteries. However, due to the relatively high price of titanium raw materials, the market price of LTO batteries is almost four times that of lithium iron phosphate batteries, meaning they won't be widely adopted in the market but rather reserved for specific high-precision applications.
Lithium Titanate Battery:
Lithium titanate batteries are lithium-ion batteries with lithium titanate as the negative electrode material. They can form 2.4V or 1.9V lithium-ion secondary batteries with positive electrode materials such as lithium manganese oxide, ternary materials, or lithium iron phosphate. Tested under conditions of 6C charging, 6C discharging, and 100% depth of discharge, the cycle life of a single lithium titanate cell exceeds 25,000 cycles, with remaining capacity exceeding 80%. Lithium titanate batteries exhibit excellent safety and stability, fast charging, long cycle life, and outstanding adaptability to wide temperature ranges. However, they have lower energy density and higher costs compared to other options.
Lithium Iron Phosphate Battery:
Lithium iron phosphate batteries are lithium-ion batteries that use lithium iron phosphate as the positive electrode material. They are characterized by their lack of expensive elements such as cobalt, low raw material costs, moderate operating voltage, high energy density, large discharge power, fast charging, long cycle life, and high stability in high-temperature environments. Lithium iron phosphate batteries are compact, lightweight, safe, environmentally friendly, and do not suffer from memory effects. However, they have relatively low energy density and higher manufacturing costs.
In summary, the choice between lithium titanate batteries and lithium iron phosphate batteries depends on specific application scenarios and requirements. Lithium titanate batteries excel in safety and charging/discharging speed, while lithium iron phosphate batteries offer better cost-effectiveness and energy density.