Lithium batteries can withstand low temperatures of -40°C.
Excellent temperature resistance of lithium iron phosphate batteries at low temperatures: when discharged at -40℃ to 0.5°C, the discharge capacity exceeds 65% of the initial capacity when They are discharged at -35℃ to 0.5°C; 0.3C, discharge capacity exceeds 75% of initial capacity;
Wide operating temperature range, from -40℃ to 55℃; can be charged at -20℃; charged at -20℃ with 0.2C discharge cycle test curve, after 300 cycles, there is still over 93% capacity retention rate.
Detailed information:
Steel-cased low-temperature lithium-ion iron battery discharges approximately 60% at low temperatures above -20°C . The iron-lithium-ion battery maker is strong. If he issolid, it can reach about 70% of the discharge capacity.
Since the electrolyte used in steel-cased lithium-ion iron batteries is liquid, its low temperature resistance has some disadvantages. Because at low temperatures, the liquid state easily transforms into a solid state. If the temperature is -25℃ and below, the discharge capacity will drop sharply, and the battery may even fail and cannot discharge electricity.
Baidu Encyclopedia - Lithium Battery
Three yuan Which is better, a lithium battery or a lithium iron phosphate battery?
Low temperature will cause the activity of the lithium battery to decrease, the reaction speed will be slower, and the conductivity of the electrolyte will worsen. These are all factors that will cause the performance of the lithium battery to degrade.
Lithium batteries are thewidely used in our daily lives. Mobile phones, tablets, laptops, etc., we all generally use lithium batteries.
The pure electric cars we drive and the pure electric buses we see on the road also use lithium batteries.
General domestic pure electric vehicles will use ternary lithium batteries. The positive electrode of this lithium battery is made of ternary materials. The positive electrodes of some ternary lithium batteries are made of nickel, cobalt and aluminum. the positive electrode of some ternary lithium batteries is composed of nickel, cobalt and manganese.
The advantages of ternary lithium batteries are high energy density, light weight and good low temperature performance.
The disadvantage of ternary lithium batteries is that theyare not very safe. This type of battery starts to burn at 200 degrees Celsius, and if this type of battery is not recycled after being discarded, it will also result in combustion. great environmental pollution.
Pure electric buses generally use lithium iron phosphate batteries, and the positive electrode of this battery is made of iron phosphate.
The advantage of lithium iron phosphate batteries is that they are relatively safe. This battery will only burn at 800 degrees Celsius.
The disadvantages of lithium iron phosphate batteries are relatively low energy density, poor low temperature performance and relatively high weight.
Many car manufacturers are looking for ways to improve the safety of ternary lithium batteries.
Which is better, a ternary lithium battery or a lithium iron phosphate battery?
I discovered the beforeAges and disadvantages of ternary lithium battery and lithium iron phosphate battery, which one is better? It depends on the situation, for example:
Energy density: The energy density of ternary lithium batteries is higher than that of lithium iron phosphate batteries.
Safety: Lithium iron phosphate batteries are safer than ternary lithium batteries.
Lifespan: The lifespan of lithium iron phosphate batteries is better than that of ternary lithium batteries.
In addition, I also learned that lithium iron phosphate batteries have low raw material costs, support fast charging, wide operating temperature range and stability. They are the best among current automobile lithium batteries and are more suitable. our needs for low cost and high security scenarios, such as energy storage systemsenergy, power tools, etc. The advantage of ternary lithium battery is that it is more stable at low temperatures and suitable for northern weather conditions. It is suitable for scenarios where we need high energy density and fast charging, such as electric vehicles, electric bicycles, etc.