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:
Low temperature iron-lithium-ion batteries in a steel casing discharge approximately 60% at low temperatures above -20°C. If iron-lithium-ion battery manufacturers are strong, they can atdye a goal. discharge capacity about 70%.
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
Upstairs What my brother said is wrong. Water freezes at zero degrees, but what we're talking about here is lithium batteries. With good electrolyte and other materials, combined with good technology, they can be discharged at -50 degrees. low temperature lithium battery type. The practical patent certificate not only allows discharge, but also guarantees at least 50% capacity.