The advantages of lithium titanate batteries are good safety and stability, fast charging performance, long life and good resistance to wide temperatures. The disadvantages of lithium titanate batteries are low energy density and high price.
1. Advantages of lithium titanate batteries:
1. Good safety and stability: Once the traditional carbon electrode is charged, metallic. lithium easily precipitates on the surface of the electrode, and flammable gas will appear when it reacts with the electrolyte, posing safety hazards. The electric potential of lithium titanate is higher than that of pure lithium metal, and lithium dendrites are less likely to appear. The discharge voltage is stable, and therefore the safety performance of lithium-ion batteries is improved.
2. Fast charging performance : Compared with carbon negative electrode materials, lithium titanate batteries have a higher lithium ion diffusion coefficient and can be charged and discharged at high speeds.
3. Long service life: Compared with current lithium iron phosphate batteries which can be used for up to 5 years with slow charging and 2 years with fast charging, lithium titanate batteries have very remarkable advantages.
4. Good temperature resistance: The spinel structure of the lithium-ion titanate battery has a three-dimensional lithium-ion diffusion channel, so the performance of the lithium-ion titanate battery at high and low temperatures is also very good. Titanate Lithium-ion batteries have good high temperature resistance and strong durability. They can be charged and discharged normally from minus 50℃ to above zero 60℃.
2. Inconveniences lithium-titanate batteries:
1. Low energy density: Compared to other types of lithium-ion batteries, the energy density is lower.
2. The price is high: Compared to other types of lithium-ion batteries, the price is high.
Technical characteristics of lithium titanate batteries
During the process of intercalation and extraction of lithium ions, the crystal structure of LTO remains very stable and does not change volume, thereby avoiding the formation of dendrites and electrode damage, and improving the safety and life of the battery. The operating potential of LTO is 1.55V, which is much higher than the 0.1V of graphite electrodes, which can reduce the precipitation of lithium metal and reduce the risk of thermal runaway.
LTO also has a three-dimensional lithium-ion channel, which makes the diffusion speed of lith ionsium fast and internal resistance of the battery low. It can realize rapid charging and discharging of large current and improve power. battery charging density and efficiency. LTO also has good low temperature resistance and can operate normally below -30°C, making it suitable for applications in cold areas.
Which battery is better and more durable for electric vehicles
As far as I know, which one is better than lithium titanate battery , lithium iron phosphate battery and ternary battery? Which one is the worst? It also starts with the performance of the three batteries. As we all know, the performance of lithium batteries is mainly determined by the positive electrode, negative electrode, electrolyte and separator. The materials of the positive and negative electrodes have a significant impact on thekey battery indicators, such as capacity, energy density and cycle. lifespan, safety, price performance, cost, etc. Although they both use ternary as the cathode material, lithium titanate batteriesChi, however, broke away from the traditional battery technology of using graphene as the negative electrode and instead using lithium titanate as the material negative electrode, which made him an outlier in the eyes of his peers. But it is the characteristics of lithium titanate itself that give batteries made of this material their particularities.
Take as examples the three lithium batteries composed of lithium iron phosphate-graphene, ternary graphene and ternary lithium titanate. From an energy density perspective alone, lithium titanate batteries are at a disadvantage. The Northeast Securities research report haspointed out that the actual specific energy of lithium iron phosphate batteries is currently 100-120 Wh/kg, and the ternary battery is 150-200 Wh/kg. Among them, the nickel-cobalt-aluminum ternary battery used by Tesla reaches. 252 Wh/kg, while Yinlong lithium titanate battery has only 90 Wh/kg, which is only half that of some graphite negative electrode material batteries. From a cost perspective, lithium titanate batteries offer no advantage. At present, the raw materials of Yinlong lithium titanate battery include titanium hydroxide and lithium hydroxide, which are more expensive than graphite negative electrode materials. According to the research results of China Battery Network, the current cost of lithium iron phosphate batteries and ternary batteries is 1,100 yuan/kWh to 1,200 yuan/kWh, while the cost of lithium titanate batteries is about2 to 3 times higher than that of ternary batteries. The energy density is twice as low and the cost is 2 to 3 times higher. How lithium titanate battery can participate in the market competition is obviously its own unique advantages which have impressed some people in the industry. First of all, considering the most important safety indicator of batteries, lithium titanate stands out.
The best and longest lasting electric vehicle batteries are lithium titanate batteries, lithium iron phosphate batteries, ternary lithium batteries , graphene batteries and lithium-iron-manganate batteries.
1. Lithium titanate battery
The durability of lithium titanate battery is the best among lithium battery types. After 25,000 charge and discharge cycles, the capacity is still acceptable. . Res80%.
2. Lithium iron phosphate battery
Lithium iron phosphate battery has a relatively long service life and is resistant to high temperatures, so it is safer. higher cycle performance and better performance. Data shows that after 1,600 cycles of lithium iron phosphate batteries, the battery capacity can still reach about 80%.
3. Ternary lithium battery
Ternary lithium battery is a battery with a wide range of applications. Due to its advantages of small size, light weight and high energy density, it is used. in many applications. All areas become market leaders.
4. Graphene Battery
Graphene battery is one of the most popular types of batteries at present. Many major brands such as Yadi, Emma and Tailing have launched their own graphene batteries. products, whileue graphene batteries retain the safety advantages of lead-acid batteries and increase battery life through the addition of graphene elements.
5. Lithium iron manganate battery
Lithium iron manganate battery is a relatively inexpensive type of lithium battery and has better low temperature resistance and safety.