First, the long life The long-life lead-acid battery has a cycle life of about 300 times, the highest is 500 times, some of the biased batteries reach more than 2000 times, and the standard charging (5 hours rate) can be used up to 2000 times. The same quality lead-acid battery can be used for up to 1 to 1.5 years, and the lithium iron phosphate battery can be used under the same conditions, which will reach 7 to 8 years. Comprehensive consideration, the performance price ratio will be more than 4 times that of lead-acid batteries.
Second, the use of safe lithium iron phosphate completely solves the safety hazard of lithium cobaltate and lithium manganate. Lithium cobaltate and lithium manganate will explode under strong collision, posing a threat to consumers' life safety, and lithium iron phosphate After a rigorous safety test, there is no explosion even in the worst accidents.
Third, can be a large current 2C fast charge and discharge, under a dedicated charger, 1.5C charging within 40 minutes to make the battery full, starting current up to 2C, and lead-acid batteries now do not have this performance.
Fourth, high temperature resistance, lithium iron phosphate electric heating peak can reach 350 ° C -500 ° C and lithium manganate and lithium cobalt oxide only at about 200 ° C.
Five, large capacity.
Sixth, no memory effect.
Seven, small size and light weight.
Eight, green and environmental protection.
The lithium iron phosphate battery is a truly safe lithium-ion battery. The lithium iron phosphate battery uses lithium iron phosphate (LiFePO4) as a positive electrode material and is a truly safe battery tested by abuse. LiFePO4 is resistant to high temperatures and does not decompose when exposed to heat. Its physicochemical properties are extremely stable when the battery is overcharged or short-circuited. When the battery is abused, LiFePO4 will not cause the battery to burn due to heat release or thermal runaway. The battery is overcharged at 3.6A5V, and the battery temperature is not higher than 55 °C. It is very safe. During the hot box test, the battery temperature is almost the same as the box temperature after 7-8 hours of heating to 300 °C. In the case of internal short circuit, extrusion and needling, the temperature will not exceed 110 °C.
Mining equipment is particularly demanding in terms of safety, which has higher requirements for lithium batteries. At present, most lithium batteries on the market use lithium cobaltate and lithium manganate as cathode materials. Lithium iron phosphate battery uses lithium iron phosphate as a positive electrode material, and LiFePO4 with an olivine structure to meet the needs of an ideal high-safety, high-capacity, high-power lithium battery is known as "the arrival of a new era of lithium-ion batteries."
LiFePO4 is non-toxic, environmentally friendly, rich in raw materials, high in specific capacity, stable in charge and discharge, good in cycle performance, high in thermal stability, extremely safe and reliable. Lithium-ion batteries made of this material are very suitable for safety, cycle life and power. Very sensitive battery applications such as features and cost of use.
The lithium iron phosphate battery fully guarantees the safety of the miner's lamp. Even under the abuse condition, there will be no explosion and fire, and the service life is more than twice that of the traditional lithium ion battery.
Lithium iron phosphate battery knowledge
Lithium iron phosphate battery is not widely used at present, but it is praised by scientists as the new lithium battery in the future. It has the following advantages.