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 directly and cannot discharge electricity.
Baidu Encyclopedia - Lithium Battery
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Winter Lithium Can the battery be fully charged?
Because the cold environment will increase the electrolytic resistance of the lithium battery, reduce the chemical reaction rate, and the current generated inside the lithium battery will also be relatively reduced. At present, although there is electricity inside the lithium battery, it cannot becompletely discharged. Therefore, the lithium battery will not be fully charged in winter. In the final analysis, the lithium battery cannot be completely released.
Detailed information:
Temperature also affects the speed of electrolyte transmission. As the temperature increases, the transmission speed increases. As the transmission temperature decreases, the transmission slows down and performanceBattery charging and discharging conditions will also be affected. However, if the temperature is too high, exceeding 45°C, it will destroy the chemical balance of the lithium battery and cause side reactions.
When the ambient temperature is very high, the cell phone battery can adapt to temperatures from minus 20 degrees Celsius to 60 degrees Celsius. But when the environment is so low that it is below zero, it will be difficult for it to adapt to this situation, and its performance will decrease accordingly. Slowly, the electrical protection will weaken, which will affect the normal operation of the. cellphone. Finally, causing a shutdown.
References:
Zhongguancun online - It turns out they are the real culprit behind the automatic shutdown of mobile phones
. The migration rate of lith ionsium in the electrolyte and electrode sheets is closely related to temperature. Theoretically, the temperature can be used normally between -20°C and 55°C. In daily life, the operating temperature of lithium batteries is between 5°C. C and 35°C. Lithium batteries are not harmful. Users in the north should take their lithium batteries home and store them as much as possible in winter, and not put them outside.
Generally speaking, the temperature in winter is relatively low and the outside temperature is generally between minus 5 and 10 degrees. This has a greater impact on lead-acid and lithium batteries. electric vehicles. When the temperature is lower, the hardware activity of the battery will decrease and the overall capacity of the battery will decrease due to the influence of temperature.
Thus, even if the charger indicates that the batterie is fully charged, the actual charging capacity is only 70% of the full charge in summer. Therefore, the driving time is much shorter than in summer. conditions for electric vehicles in winter permit. If so, you can choose to charge indoors. After all, most homes now have heating or air conditioning, and the indoor temperature is relatively high. When the temperature is above 15 degrees, the electric vehicle battery will run out. basically not fully charged.
Many factors affect the battery life and mileage of electric vehicles. Generally speaking, they can be roughly divided into the following aspects.
The first is that the vehicle body is overloaded, resulting in slow driving and insufficient power.
The second is that electric vehicless often go up and down hills, and even if they reach top speed, they can't pick up speed.
The third is that insufficient tire inflation causes greater resistance and the speed cannot be increased.
The fourth is engine demagnetization or third-speed transmission failure. The fourth is insufficient battery power or speed limiter restrictions, etc. Just make a specific judgment based on your own real situation.