On the left of LiFePO4 Battery is the positive electrode made of olivine structured LiFePO4 material, which is connected to the positive electrode of the battery by aluminum foil, and on the right is the negative electrode of the battery composed of carbon (graphite), and the negative electrode of the battery is connected by copper foil. Lithium ions can pass through the separator while electrons cannot pass through the separator. The battery is filled with electrolyte, and the battery is hermetically sealed by a metal casing. LiFePO4 Battery has a series of unique advantages such as high working voltage, high energy density, long cycle life, and environmental protection. After forming an energy storage system, it can be used for large-scale electric energy storage. LiFePO4 Battery energy storage system consists of LiFePO4 Battery group. During the charging phase, the intermittent power supply or the power grid charges the energy storage system, and the alternating current is rectified into direct current through a rectifier to charge the energy storage battery module and store energy. In the discharging phase, the energy storage system discharges to the grid or the load, the DC power of the energy storage battery module is converted to AC power through the inverter, and the inverter output is controlled by the central monitoring system.
1: The peak value of lithium iron phosphate electric heating can reach 350℃-500℃, while lithium manganate and lithium cobalt oxide are only around 200℃, which has high temperature resistance. The peak value of lithium iron phosphate electric heating can reach 350℃-500℃ while lithium manganate and cobalt Lithium acid is only around 200℃, and it is used more in the street lamp industry.
2: Small size and light weight used in street lights, the volume ratio of lithium-ion batteries is as high as 100wh/l, which is smaller than lead-acid batteries. More free from space constraints in installation. The weight of a LiFePO4 Battery with the same capacity is only half the weight of a lead-acid battery.
3: It is the best match to the charging and discharging state of the street lamp. The charging and discharging current of the street lamp is very small, most of which will not exceed 10A. Therefore, for the battery, it is shallow charging and shallow discharge. This working mode limits the matching battery.
4: No memory effect, the capacity will be lower than the rated capacity value quickly, this phenomenon is called memory effect. Like Ni-MH and Ni-Cd batteries, there is memory, but LiFePO4 Battery does not have this phenomenon. No matter what state the battery is in, it can be charged and used at any time without having to discharge it first.
Post time: Dec-07-2020