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China Tower uses lithium batteries to replace lead-acid batteries

13 Dec, 2021

By hoppt

lithium batteries to replace lead-acid batteries

HOPPT BATTERY analysis: New battery energy storage uses more and more lithium batteries, gradually replaces lead-acid batteries, and is more and more widely used in the energy storage market. The process of replacing lead-acid batteries in iron tower systems with lithium batteries has begun. Lithium iron phosphate batteries have low production costs and high cycle times. The core scenario of lithium battery applications in the communications market is base station backup power.

how to replace lead acid battery with lithium ion


2020 Tower Communication Base Station Will Replace 600-700,000 Towers of Lithium Batteries

Benefiting from the replacement of stock base stations, the broad market space for communication energy storage brought about by the large-scale popularization of 5G base stations, and the rapid commercialization of power storage on the power generation side, grid side, and user side, the lithium battery energy storage market is developing rapidly. As of the end of June 2019, China Tower has received 65,000 5G base station construction needs, and it is expected to receive 100,000 5G base station construction needs throughout this year.

1) Power battery market: domestic sales of new energy vehicles are expected to reach 7 million in 2025, and overseas sales are expected to exceed 6 million in 2025. In 2020, domestic power battery demand will be about 85GWh. In 2020, overseas power battery demand will be about 90GWh. The space for the power battery industry continues to expand, and the need for power batteries is expected to grow by about 50% in 2020.

2) Non-power battery market: The lithium battery energy storage market is currently in its infancy. The lead-acid replacement of lithium batteries in tower communication base stations is the most significant demand point. In 2018, China Tower’s lead-acid replacement lithium batteries totaled 120,000 towers, using approximately 1.5GWh of lithium batteries. Three hundred thousand towers will be replaced in 2019, using 4-5GWh of lithium batteries, and 600,000-700,000 buildings are expected to be replaced in 2020, which is scheduled to be 8GWh. All the towers will be replaced by about 25GWh, which is enormous.

3) There is no need to worry about the general direction of lithium batteries: whether it is new energy vehicles, 5G mobile phones, base station backup points, and energy storage batteries, all are deterministic and steady growth. With the advancement of mobile Internet and Internet of Everything, from wired to wireless, Lithium batteries are currently the best power solutions.


What signal does the iron tower send when replacing lead-acid batteries with lithium batteries?

As a large-scale state-owned communications infrastructure comprehensive service company, Tower Company has 1.9 million base stations. For a long time, China Tower Corporation Limited’s base station backup power supplies have mainly used lead-acid batteries, and each year it purchases about 100,000 tons of lead-acid batteries. Lead-acid batteries have a short service life, low performance, and heavy metal lead. If discarded, they will cause secondary pollution to the environment if they are not appropriately handled.

However, compared with lead-acid batteries, lithium batteries have the advantages of high energy density and long service life. For this reason, the Tower Company started in 2015 and successively carried out cascading tests to replace lead-acid batteries with batteries in more than 3000 base stations in 12 provinces and cities. The safety and technical and economic feasibility of echelon utilization are verified.

As the construction of 5G base stations accelerates, the demand for energy storage lithium batteries will also increase significantly. China Tower has comprehensively promoted the cascade utilization of power batteries and stopped purchasing lead-acid batteries.

Secondly, because 5G base stations require a high-density layout, the roof, and other locations have limited load-bearing capacity. At the same time, when 5G energy storage batteries participate in peak shaving and cost reduction, the number of charging and discharging will be significantly increased, and the advantage of the low full-cycle cost of lithium iron phosphate batteries will be To be able to play, to the retired power lithium battery has brought more significant opportunities.

There is a massive demand for energy storage lithium batteries in tower base stations, which are in line with the characteristics of the large-scale use of tiered batteries. They will become the main application areas of tiered batteries; if the tower communication base station energy storage batteries are replaced, and new stations all use power battery cascade batteries, It will scrap them in 2020. The power battery can absorb more than 80%.

Summary: China Tower uses lithium batteries to replace lead-acid batteries, filling the gaps in the technical specifications for cascading utilization in the domestic communications industry and advancing cascading utilization technology.


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