Which is better? Lithium titanate battery or lithium iron phosphate?

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For high-end application scenarios, when cost is not considered as the main factor, of course, lithium titanate battery(LTO battery) are selected. Whether it is cycle life or charge and discharge, low temperature resistance is completely no problem. However, due to the relatively high price of raw material titanium, the price of LTO battery on the market is almost four times that of lithium iron phosphate batteries, which means that this battery will not be widely used in the market, but will only be used by a few high-precision batteries. sharp field applications.

For more details, please check the comparison between both,

What Is a Lithium Titanate Battery?

Lithium titanate battery is a kind of negative electrode material for lithium ion battery – lithium titanate, which can form 2.4V or 1.9V lithium ion secondary battery with positive electrode materials such as lithium manganate, ternary material or lithium iron phosphate. In addition, it can also be used as a positive electrode to form a 1.5V lithium secondary battery with a metal lithium or lithium alloy negative electrode.

What Is the Performance Of Lithium Titanate Battery?

The test data shows that under the conditions of 6C charging, 6C discharging, and 100% DOD, the cycle life of the lithium titanate cell ( LTO battery cell) exceeds 25 000 times, and the remaining capacity exceeds 80%. Its life; after the lithium ion titanate battery is grouped, the electrical performance is also quite excellent.

Advantages Of Lithium Titanate Battery,

1. Good security and stability

The potential of lithium ion titanate battery is higher than that of pure metal lithium, it is not easy to generate lithium dendrites, the discharge voltage is stable, and, therefore, the safety performance of lithium batteries is improved. Lithium titanate batteries have been tested and found that under severe tests such as acupuncture, extrusion, and short circuit, there is no smoke, no fire, and no explosion, and the safety is much higher than other lithium batteries.

2. Excellent fast charging performance

Compared with carbon anode materials, lithium titanate batteries have a higher lithium ion diffusion coefficient and can be charged and discharged at high rates. While greatly shortening the charging time, the impact on the cycle life is small, and the thermal stability is also strong. The lithium titanate battery can be fully charged in about ten minutes.

3. Long cycle life

The lithium titanate battery can be fully charged and discharged for more than 30,000 cycles. After 10 years of use as a power battery, it may be used as an energy storage battery for another 20 years. The user does not need to replace the battery in actual use, and hardly increases the later cost.

4. Good resistance to wide temperature

Generally, electric vehicles will have problems when charging and discharging at minus 10 ℃. lithium ion titanate battery has good wide temperature resistance and strong durability. It can be charged and discharged normally at minus 50 ℃ to minus 60 ℃. In the north country, or in the hot south, the vehicle will not be affected by the “shock” of the battery, which eliminates the user’s worries.

Disadvantages Of Lithium Titanate Battery,

1. Low energy density and high cost.

The price of lithium ion titanate battery is high (high production cost and high humidity control requirements), about $1.6USD per watt-hour, and the gap between lithium iron phosphate battery and LTO battery is about $0.4 USD per watt-hour.

What Is A Lithium Iron Phosphate Battery?

Lithium iron phosphate battery pack refers to a lithium ion battery that uses lithium iron phosphate as a positive electrode material.

What Are The Characteristics Of lithium Iron Phosphate Battery?

Its characteristics are that it does not contain precious elements such as cobalt, the price of raw materials is low, and the resources of phosphorus and iron in the earth are abundant, so there will be no problem of supply. It has moderate operating voltage (3.2V), large capacity per unit weight (170mAh/g), high discharge power, fast charging and long cycle life, and high stability in high temperature and high thermal environments.

Advantages Of Lithium Iron Phosphate Battery,

1.Small size and light weight.

The volume of the lithium battery pack is 2/3 of the volume of the lead-acid battery, and the weight is only 1/3 to 1/4 of the lead-acid battery.

2.Long cycle life

The cycle life of lithium iron phosphate battery packs is 2000 to 8000 times, but the traditional lead-acid battery is only 500 to 900 times.

3. The charging and discharging characteristics are good.

The charging and discharging electric energy conversion efficiency of lithium battery packs can be greater than 97%, and the charging and discharging electric energy conversion efficiency of lead-acid batteries is about 80%.

4. Safe and environmentally friendly.

lithium iron phosphate material does not contain any heavy metals and rare metals, non-toxic, no pollution in production and use, in line with European RoHS regulations, is a green battery lithium battery. In experiments such as puncture, extrusion, overcharge, and short circuit, there is no explosion or fire.

5. No memory effect

The battery can be charged and discharged at any time.

Disadvantages Of lithium Iron Phosphate Battery,

The tap density and compaction density of lithium iron phosphate batteries are very low, resulting in low energy density of lithium ion batteries; the preparation cost of materials and the manufacturing cost of batteries are high, and the yield of batteries is low.

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