In the 4G, 5G era, how do we choose a viable base station battery solution

In the 4G, 5G era, how do we choose a viable base station battery solution?

In the 4G era, the trend of miniaturization and integration of base stations puts higher demands on the performance of lithium battery backup power. Lithium iron phosphate battery packs are expected to break through in the field of communication base stations with outstanding performance advantages and increasing cost performance. It is expected that the demand for communication lithium batteries will continue to grow rapidly in the next three years.


Application of lithium iron phosphate battery in communication industry

(a) an outdoor base station;

(b) a base station without air conditioning such as village communication;

(c) an indoor macro base station with tight space;

(d) DC-powered indoor coverage/distributed source stations;

(e) Solar photovoltaic base stations without mains or third- and fourth-class electricity areas;

(f) WLAN site of DC power supply scheme, etc.

48V lithium iron phosphate battery pack will become the mainstream of communication base station application

1, 48V lithium iron phosphate battery pack communication lithium battery price has dropped to CNY1 / WH or so, and gradually approached CNY0.6 / WH of lead-acid communication battery. From the number of cycles, the lithium iron phosphate battery can reach more than 3000 times, while the lead-acid battery is only about 300 times, and the cost per single cycle is as low as that of lead-acid batteries;


2. Lithium battery packs have obvious performance advantages over lead-acid batteries, such as environmental protection, low maintenance cost, high energy density, strong environmental adaptability, long service life, etc., which are more suitable for 4G communication base stations.


3. With the gradual popularization of 4G communication base stations, the future increase and improvement of base station construction demand by communication operators will increase rapidly, driving the demand for communication lithium iron phosphate batteries.


At present, the mainstream of communication lithium batteries is the two complementary technical paths of ternary system and lithium iron phosphate system. The ternary battery has higher energy density and shorter cycle times, while the 48V lithium iron phosphate battery has the opposite. High safety performance and high cycle performance. From the perspective of cost, since the average service life of the lithium iron phosphate battery is longer than that of the ternary battery, the use cost of lithium iron phosphate per unit time is lower.


In the future, with the large-scale production of energy storage lithium batteries, the cost will continue to decline, and the 48V lithium iron phosphate battery pack will play an increasingly important role in the backup power supply field of communication base stations. With the development of electric vehicles and lithium battery energy storage industry, lithium battery applications continue to scale, prices will become lower and lower, and more and more competitive.


In the entire communication energy storage system, the battery is only a part of it, in addition to BMS, wire harness and building structural parts, of which battery management system (BMS) technology is the key to the communication energy storage system.


Advantages of lithium iron phosphate battery for communication compared with lead-acid battery:


●High energy density: the nominal voltage is 3.2V, the energy density is about 4 times that of lead-acid batteries, and the volume is small and the weight is light;


●High temperature performance: the battery works normally when the external temperature is 55 °C;


● Strong safety: Lithium iron phosphate cathode material has good electrochemical performance, the charging and discharging platform is very stable, the structure is stable during charging and discharging, the battery does not burn, does not explode, and has good safety;


● The application of lithium iron phosphate battery for communication can reflect the needs of energy saving and emission reduction work such as “energy saving”, “material saving” and “land saving” compared with traditional lead-acid batteries;


●Environmental protection: The whole 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 after 3000 cycles is still greater than 80%.


In order to meet the needs of the communication base station industry, lithium iron phosphate battery packs are mainly available in 12V and 48V modules. The capacity levels are 10Ah, 20Ah, 50Ah, 150Ah, 200Ah, etc. The battery modules can be connected in series and in parallel. A battery pack with a voltage rating and multiple capacities meets the various needs of switching power supplies and UPS power supplies.


With the advent of the information age, communication base stations are particularly important to people. At present, the 48V lithium iron phosphate battery pack has been applied in the field of communication. Due to the large number of communication base stations, the future prospect of lithium batteries is limitless.

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