Energy storage is a trillion-level emerging industry with broad development prospects in China. Lithium-ion battery energy storage, as the most promising technology direction, has become an important promoter of driving the energy revolution and catalyzing the large-scale application of energy storage scenarios.
In the development of 5G, base stations go first. In the construction of 5G networks, base stations are often an important foundation for the first stage. The power supply equipment, as one of the base station power facilities, is a prerequisite guarantee for determining whether a base station can operate normally.
At this stage, 5G base stations usually use distributed energy to supply power. After allowing 5G large-scale communication terminals to access the network, distributed power sources and user-side energy storage equipment can make the entire power system have good adaptability, stability and flexibility, thereby ensuring the normal operation of the power system.
Compared with 4G base stations, the energy consumption of 5G base stations has doubled and has shown a trend of miniaturization and light weight, which requires energy storage systems with higher energy density to match. In this regard, it is an inevitable trend that lithium-ion batteries represented by lithium iron phosphate replace traditional lead-acid batteries to power 5G base stations.
Compared with traditional lead-acid batteries, lithium iron phosphate batteries have the advantages of high energy density, long service life, environmental protection, high current charging and discharging, and high safety. Despite the relatively high cost of raw materials, the cycle life of lithium iron phosphate batteries is approximately 6 times that of lead-acid batteries. So on the whole, the lifetime cost of lithium iron phosphate batteries is only one third of that of lead-acid batteries.
According to the prediction of GGII (High-tech Robot Industry Research Institute), as the four major domestic operators and China Tower open the bidding for base station lithium batteries, the demand for base station energy storage will be further released in the future. The research institute conservatively predicts that the energy storage demand for newly built and upgraded 5G base stations will exceed 10GWh in 2020.