What are the advantages of ternary lithium batteries compared to lithium iron phosphate batteries? Ternary lithium batteries and lithium iron phosphate batteries are the two main battery technology direction, ternary lithium batteries will continue to speed up the progress of research and development, compared to lithium iron phosphate batteries, its advantages continue to highlight. Ternary lithium batteries on lithium iron phosphate market replacement has just begun, lithium iron phosphate companies still have enough time for strategic buffer.
What are the advantages of ternary lithium batteries compared to lithium iron phosphate?
First of all, lithium iron phosphate battery battery decay is more serious, while ternary lithium batteries in the low-temperature state can still ensure good discharge performance, so in the past BYD cars, sales in northern China are relatively small, and the use of ternary lithium batteries, this situation can be greatly changed.
The energy density of ternary lithium battery is relatively high, and the charging and discharging efficiency is high. As the range is an important indicator of pure electric vehicles, compared with ternary lithium batteries, lithium iron phosphate batteries have a better advantage in battery energy density, the range of pure electric vehicles can be guaranteed.
Most of the world's pure electric car companies are currently using ternary lithium batteries, especially after the launch of Tesla, and even led the development of ternary lithium batteries. If only BYD itself uses lithium iron phosphate batteries, then it will be very difficult to get promotion. Therefore, BYD joined hands with Guoxuan High-tech to set up a joint venture company to jointly develop and produce ternary lithium batteries.
Charging is also an important part of the actual use of electric vehicles, and ternary lithium batteries have a very big advantage over lithium iron phosphate in terms of charging efficiency. Ternary lithium battery and lithium iron phosphate battery in the 10C below charging, constant current ratio no significant difference, 10C above the multiplier charging, lithium iron phosphate battery constant current ratio rapidly decreases, charging efficiency quickly.
For the family car, ternary material lithium battery and lithium iron phosphate power battery rated cycle life are far more than the actual user habits, so in the service life can be completely assured. Assuming an average of 3 days a charge throughout the year to calculate the use of 1 year need to charge about 6 times, the cycle life of 1000 times to use the end of about 8 years, which is basically more than the current average of China's consumers to replace the car cycle.
The characteristics of ternary lithium batteries: small size, can be loaded with greater capacity, winter performance decline is not much, the initial capacity is larger, there is a significant mileage advantage than lithium iron batteries, the general life of about 5 years.
According to the data published by the China Automotive Power Battery Industry Innovation Alliance January-August 2019, China's power battery installed a total of 38.2GWh, of which, the ternary lithium battery installed a total of 26.1GWh, accounting for 68.4% of the total installed capacity; lithium iron phosphate battery installed a total of 11.0GWh, accounting for 28.8% of the total installed capacity, only data to see the ternary lithium battery has an overwhelming advantage.
In contrast, ternary Li-polymer batteries are better than LiFePO4 in terms of energy density ratio, while in the environmental temperature adaptation and stability of LiFePO4 is better than ternary Li-polymer batteries.
Car companies for the choice of batteries to choose from driving safety, range, cost and other aspects, suitable for their own is the most important. Ternary lithium batteries and lithium iron phosphate batteries between the two options who is every new energy vehicle enterprises will face the soul of the torture.
Summary: compared with ternary lithium batteries, lithium iron phosphate advantage is the high stability, relatively cheap, however, the energy density is limited to improve the space. In the energy density ratio, ternary lithium batteries have more advantages than lithium iron phosphate, thinner and lighter.
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