Ternary lithium batteries can be used at minus 10 degrees Celsius. Under normal circumstances, the BYD Han equipped with blade batteries can still discharge 90% of the electricity at an ambient temperature below minus 10 degrees Celsius, and the discharge power is basically the same. identical to that of ternary lithium batteries. In terms of battery performance, the blade battery can charge the battery from 10% to 80% in 33 minutes, help electric vehicles accelerate up to 100 kilometers in 3.9 seconds, charge and discharge more than 3,000 times and ensure electric vehicles can travel. 1.2 million kilometers.
I believe many friends know that lithium iron phosphate batteries have two big advantages over ternary lithium batteries, namely lifespan and energy density. Under experimental conditions, after 5,000 cycles of lithium batteriesium iron phosphate, the remaining capacity is 84%. After 5,000 cycles at 1°C, it can still retain more than 80% of the initial capacity; after 3,900 cycles of ternary lithium batteries, the remaining capacity; is only 66%, it drops to 80% of the initial capacity after 2500 cycles of 1C. In addition, the energy density of lithium iron phosphate batteries is 120 Wh/kg, which has basically reached the theoretical limit, while the energy density of ternary batteries is 180 Wh/kg, and there is still a lot of room for improvement in the future.
But the only disadvantage of lithium iron phosphate batteries is that the low temperature effect is particularly poor. Under low temperature conditions (temperature below -10°C), lithium iron phosphate batteries degrade very quickly. After less than 100 charge and discharge cycles, the battery capacity will drop to 20% of its initial capacity, which isi is essentially isolated from its use. cold areas.
Fortunately, Dongguan Juda Electronics Co., Ltd. developed a lithium iron phosphate battery that can still work normally at minus 40 degrees, which has closed the gap in the market in one fell swoop and is worth mentioning. The most important thing is that minus 40 degrees is different from most low temperature (customizable) battery products on the market.
Characteristics of Juda low temperature lithium iron phosphate battery
1. Using superposition technology, low resistance internal
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2. Discharge at -40°C 0.2C, discharge capacity exceeds 90% of initial capacity ;
3. Discharge of -50°C 0.2 C, discharge capacity exceeds 75% of initial capacity
< p> 4. Wide operating temperature range, -40°C to 55°C < ; /p>
5. Pcould be charged at -40°C
6. Using lithium iron phosphate chemical material, high safety and long life;
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7. It is suitable for polar scientific research, cold area rescue, special robots, special equipment, medical equipment and other fields using proprietary electrolyte formula and other special functional raw materials, as well as advanced innovative technology ensuring that the battery can still discharge efficiently at extremely low temperatures. Discharge capacity exceeds 85% of initial capacity when discharged at 0.2°C. -20°C, 70% at -30°C and 70% at -40°C. The lower discharge capacity is approximately 55% of the initial capacity. The operating temperature is -40°C~55°C. Coupled with the long life of lithium iron phosphate batteries, it solves the problems of many manufacturers in one fell swoop.of equipment. The size is flexible and can be professionally customized.
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