EV battery
The ternary lithium battery and lithium iron phosphate battery whose service life is longer?
by:Vglory
2020-12-04
Source: 2020 -
04 -
At 20 hits: lithium iron phosphate batteries and ternary lithium batteries are widely used in electric vehicles.
However, because of the influence of the energy ratio and policy, the main use of models is different.
Lithium iron phosphate battery is mainly used for buses, buses and so on need long-distance running vehicles.
Ternary lithium batteries are usually installed on the family car, because it is about the same capacity of lithium iron phosphate battery twice.
In simple understanding of the lithium iron phosphate and two kinds of ternary lithium lithium battery, let's go back to 'and ternary lithium batteries, lithium iron phosphate which one is more durable?
'and ternary lithium iron phosphate lithium battery life of lithium iron phosphate battery residual capacity of 5000 cycles is 84%, the ternary lithium battery residual capacity of 3900 cycles is 66%.
If the remaining capacity/initial capacity = 80% as the end of the test, the 1 c cycle life of lithium iron phosphate battery lab 3500 times, some of them 5000 times, and 1 c ternary lithium battery life cycles about 2500 times in the lab.
In this point, the cycle life of lithium iron phosphate battery actual life than ternary lithium batteries much longer.
Under the same cycles, lithium iron phosphate battery remaining capacity is far greater than the ternary lithium battery.
In addition to the two batteries on the cycle life of a huge gap, also there are differences on safety performance.
How to get the lithium-ion battery pack as a renewable resource?
First, lithium batteries contain large amounts of copper and lithium powder, is a scarce resource that has a high value.
In the market, each year tens of millions of tons of waste lithium-ion batteries, waste recycling and deal with the lithium battery has a high commercial value.
Waste lithium ion battery environmental treatment: coarse crushing machine, grain mill, powder classifier, cyclone separator, impulse precipitator, high pressure blower, lithium battery factory the whole process of recycling industrial automation, high recovery efficiency, strong processing capacity, capacity is 500 kg per hour, annual production capacity of 5000 tons, recycling waste more than 90% of the valuable components of lithium-ion batteries.
The defects of the lithium battery is the same price of batteries voltage and capacity is about twice the lead-acid battery (
Although as technology updates, prices are falling)
。
Due to the lithium ion battery components are very active, if use undeserved electrolyte decomposition, combustion and even explosion happens to a major accident.
Low battery performance change for the worse due to the low temperature, and the platform of discharge is reduced, the output power decreases, and the effective power attenuation, etc.
Lithium iron phosphate battery with ternary lithium battery safety performance comparison on material system, lithium iron phosphate battery cathode material decomposition temperature is about 700 ℃, the ternary lithium battery cathode material decomposition temperature is 200 ℃.
In a laboratory test environment, short circuit of lithium iron phosphate battery monomer, almost no fire.
Because the ternary lithium batteries, easier to fire, so ternary lithium battery thermal management in more demanding, and lithium iron phosphate battery adaptability to temperature is higher, and more safety.
Lithium iron phosphate batteries and ternary lithium battery market analysis while the application of ternary lithium iron phosphate and lithium battery overlap is not much, but the lithium iron phosphate battery pack is installed in the main passenger car, lithium iron phosphate battery mainly installed in the car for the family.
But that is because the influence of the policy and the current battery power than factors such as two application is different.
But this kind of market pattern is not absolute, with the development of battery technology and the change of government policy, the two batteries in the future application market is unclear.
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