Lithium titanate is a lithium ion battery anode material used as lithium titanate, which can be used with lithium manganate, ternary materials or lithium iron phosphate and other cathode materials to form a 2.4V or 1.9V lithium ion secondary battery. In addition, it can also be used as a positive electrode, and lithium metal or lithium alloy negative electrode to form a 1.5V lithium secondary battery. Due to the high safety, high stability, long life and green features of lithium titanate.
Lithium titanate is a new type of lithium-ion battery with super safety, ultra-high multiplier and long cycle life, charging time is only a few minutes to reach more than 80% of the load power, lithium titanate has good resistance to overcharge and anti-reverse charge characteristics, even if the accidental overcharge, reverse charge or short circuit, lithium titanate will never explode, fire safety hazards.
Lithium titanate battery features.
1, revolutionary explosion-proof packaging process, excellent safety performance, can be used without lithium protection plate.
2, fast charge and discharge characteristics, high and low temperature performance, long cycle life.
3、Operating temperature: -35℃~75℃.
4、Charging multiplier: 1~40C Discharging multiplier: 1~40C.
5, cycle life: 0.5C 7000 times, 1C > 4000 times.
At present, commercial lithium-ion batteries mainly use carbon anode material, but carbon as the negative electrode of the lithium battery in the application of a number of disadvantages: 1.
1, the precipitation of lithium dendrites when overcharging is easy to cause short circuit battery, over discharge is easy to cause the decomposition of electrolyte, battery charging and discharging will be a safety hazard.
2, easy to form SEI film during the charging and discharging process, resulting in a large irreversible capacity, while the volume change is large, poor cycle stability.
And as a spinel-type lithium titanate anode can effectively improve such a situation: the
1, the potential of lithium titanate is higher than lithium metal, not easy to produce lithium crystal branches when overcharging, smooth voltage during discharge, electrolyte does not decompose, improving the safety of lithium batteries.
2, cycle stability performance is good, can be high rate charge and discharge.
