Application of lithium iron phosphate battery in the communication industry
(a) Outdoor base station;
(B) Non-air-conditioned base stations such as village traffic;
(C) Indoor macro base station with tight space;
(D) DC-powered indoor coverage/distributed source station;
(E) Solar photovoltaic base stations in areas without mains or three or four types of mains;
(F) WLAN sites of DC power supply solutions, etc.
48V LiFePo4 lithium iron phosphate battery pack will become the mainstream of communication base station applications
1. The price of 48V lithium iron phosphate battery pack communication lithium battery has dropped to about 1.8 yuan/WH, gradually approaching the 0.6 yuan/WH of aluminate communication battery. In terms of the number of cycles, lithium iron phosphate batteries can reach more than 2000 times, while alumina batteries are only about 300 times, and the cost of a single cycle is as low as alumina batteries;
2. Lithium battery packs have obvious performance advantages over aluminate batteries, such as environmental protection, low maintenance costs, high energy density, strong environmental adaptability, and long service life. They are more suitable for 4G communication base stations.
3. With the gradual popularization of 4G communication base stations, the demand for new and improved base station construction by communication operators will increase rapidly in the future, driving the growth of demand for communication lithium iron phosphate batteries.
At present, the more mainstream communication lithium batteries are the two relatively complementary technical paths of the ternary system and the lithium iron phosphate system. The ternary system battery has a higher energy density and a shorter cycle number, while the 48V lithium iron phosphate battery is the opposite. High safety performance and high cycle performance. From the cost point of view, since the average service life of lithium iron phosphate batteries is longer than that of ternary batteries, the cost of using lithium iron phosphate per unit time is lower.
In the future, with the realization of mass production of energy storage lithium batteries, the cost continues to drop, and 48V lithium iron phosphate battery packs will play an increasingly important role in the field of backup power supplies for communication base stations. With the development of electric vehicles and lithium energy storage industries, the application of lithium batteries continues to scale, prices will become lower and lower, and they will become more and more competitive.
In the entire communication energy storage system, the battery is only a part of it. In addition to BMS, wiring harness and building structure, the battery management system (BMS) technology is the key to the communication energy storage system.
The advantages of lithium iron phosphate batteries for communications compared with lead-acid batteries:
●High energy density: The nominal voltage is 3.2V, the energy density is about 4 times that of lead-acid batteries, and it is small in size and light in weight;
●Good high-temperature performance: the battery works normally when the external temperature is 55℃;
●Strong safety: Lithium iron phosphate cathode material has good electrochemical performance, the charging and discharging platform is very stable, the structure is stable during the charging and discharging process, the battery does not burn, does not explode, and has good safety;
●Compared with traditional lead-acid batteries, the application of lithium iron phosphate batteries for communications can better reflect the needs of energy-saving and emission-reduction work such as "energy-saving", "saving materials" and "saving land";
●Environmental protection: The entire production process is clean and non-toxic, and all raw materials are non-toxic;
Long cycle life: 1C charge and discharge at room temperature, the capacity of the monomer is still greater than 80% after 2000 cycles.
In order to meet the needs of the communication base station industry, lithium iron phosphate battery packs mainly have two types of 12V and 48V modules, and the capacity levels are 10Ah, 20Ah, 50Ah, 150Ah, 200Ah, etc. The battery modules can be connected in series and parallel, and can be formed into multiple types. Battery packs with voltage levels and multiple capacities can meet the various needs of switching power supplies and UPS power supplies.
With the advent of the information age, communication base stations appear to be particularly important to people. At present, 48V lithium iron phosphate battery packs have begun to be used in the communication field. Due to a large number of communication base stations, the future of lithium batteries is unlimited.
