Does lithium iron phosphate battery decay in winter and recover in summer?
Lithium iron phosphate battery decays in winter and recovers in summer. At low temperature in winter, lithium iron phosphate battery will attenuate more than ternary lithium battery. Under the same conditions, the cruising range of vehicles equipped with ternary lithium battery will shrink by 25% due to low temperature in winter, then If it is lithium iron phosphate, it may reach 30%.
Lithium iron phosphate batteries will attenuate more than ternary lithium batteries at low temperatures in winter. Under the same conditions, the cruising range of vehicles equipped with ternary lithium batteries will be reduced by 25% due to low temperature in winter. up to 30%. The safety and stability of lithium iron phosphate power battery is much better than that of ternary lithium battery, so lithium iron phosphate battery does not need too complicated thermal management system, and the temperature control system package is still safe. The ternary lithium battery needs to be strictly isolated and tightly wrapped, so it is under different conditions when facing the natural cold air. The phosphoric acid basically wears summer clothes, while the ternary lithium battery must be wrapped in cotton clothes all year round.
Objectively speaking, although the energy density ratio of lithium iron phosphate batteries is low, the advantages of safety and stability are still very large. In addition, long life and more environmental protection are also its advantages, but it pays more attention to cruising range and vested interests. Companies often ignore this, consciously or not. The production materials of lithium iron phosphate are very environmentally friendly, the electrolyte can be directly drunk, and the cycle life is twice that of ternary lithium batteries. When the ternary lithium battery is retired from the electric vehicle, it can only be recycled and disassembled, while the lithium iron phosphate can still be used as an energy storage device after being retired from the electric vehicle.
Since the suitable working temperature of the power lithium battery is 20-30 degrees Celsius, in the low temperature environment, the electronic activity in the battery will decrease, resulting in the shrinking of the cruising range in winter. In response to this problem, OEMs have applied the power battery constant temperature system. Warm up the power battery compartment in advance to reduce the shrinkage ratio. Of course, this heating process itself needs to consume a certain amount of electricity.