Improvements in safety performance
The P-O bond in the Lifepo4 Battery crystal is stable and difficult to decompose. Even at high temperature or overcharge, it will not collapse and generate heat like lithium cobalt oxide or form strong oxidizing substances, so it has good safety. A report pointed out that in the actual operation, a small number of samples were found to be burning in the acupuncture or short-circuit experiments, but there was no explosion. explosion phenomenon. Even so, its overcharge safety has been greatly improved compared with ordinary liquid electrolyte lithium cobalt oxide batteries.
improvement in lifespan
Lifepo4 Battery refers to a lithium-ion battery that uses Lifepo4 Battery as a positive electrode material.
, and Lifepo4 Battery, the cycle life can reach more than 2000 times, and the standard charging (5-hour rate) can reach 2000 times. The lead-acid battery of the same quality is "new half year, old half year, and maintenance and maintenance for half a year", which is 1~1.5 years at most, and lithium iron phosphate battery is used under the same conditions, the theoretical life will reach 7~8 years. Comprehensive consideration, the performance-price ratio is theoretically more than 4 times that of lead-acid batteries.
High-current fast discharge
It can quickly charge and discharge with high current 2C. Under the special charger, the battery can be fully charged within 40 minutes at 1.5C, and the starting current can reach 2C, but lead-acid batteries do not have this performance now.
Good high temperature performance
The electric heating peak of lithium iron phosphate can reach 350℃-500℃, while lithium manganate and lithium cobaltate are only around 200℃. Wide operating temperature range (-20C--+75C), with high temperature resistance, lithium iron phosphate electric heating peak can reach 350℃-500℃, while lithium manganate and lithium cobaltate are only around 200℃.
High capacity
Has a larger capacity than ordinary batteries (lead acid, etc.). 5AH-1000AH (single)
no memory effect
Rechargeable batteries often work under the condition of being fully charged, and the capacity will quickly drop below the rated capacity. This phenomenon is called the memory effect. Like nickel-metal hydride and nickel-cadmium batteries, there is memory, but lithium iron phosphate batteries do not have this phenomenon. No matter what state the battery is in, it can be used at any time without having to discharge it before charging.
light weight
The volume of the lithium iron phosphate battery with the same specification and capacity is 2/3 of the volume of the lead-acid battery, and the weight is 1/3 of the lead-acid battery.
environmental Protection
The battery does not contain any heavy metals and rare metals (nickel-metal hydride batteries require rare metals), non-toxic (SGS certification), non-polluting, in line with European RoHS regulations, and is an absolute green battery certificate. There is a large amount of lead in lead-acid batteries. If it is disposed of improperly, it will cause secondary pollution to the environment, and lithium iron phosphate materials are pollution-free in both production and use. Therefore, the battery has been included in the "863" national high-tech development plan during the "Tenth Five-Year Plan" period, and has become a key project supported and encouraged by the state. With China's entry into the WTO, the export volume of China's electric bicycles will increase rapidly, and now electric bicycles entering Europe and the United States have been required to be equipped with non-polluting batteries.
Lithium iron phosphate batteries also have their shortcomings: for example, low temperature performance is poor, the tap density of positive electrode materials is low, and the volume of lithium iron phosphate batteries of equal capacity is larger than that of lithium ion batteries such as lithium cobalt oxide, so it has no advantages in micro batteries. When used in power batteries, lithium iron phosphate batteries, like other batteries, need to face the problem of battery nsistency.
