China Tower Stopped Purchasing Lead-acid batteries And Changed To Lithium Batteries

As a state-owned large-scale communication infrastructure comprehensive service enterprise, the company has 1.9 million base stations and has a large demand for backup power. By promoting the recycling and utilization of decommissioned power batteries, the company has realized the retiring power while ensuring the needs of communication services. Centralized use and control of batteries.

For a long time, the base station backup power supply of the company has mainly used lead-acid batteries, and it purchases about 100,000 tons of lead-acid batteries every year. Lead-acid batteries have shortcomings such as short service life, low performance, and a large amount of heavy metal lead. If they are disposed of improperly, they will cause secondary pollution to the environment. To this end, the company started in 2015, and successively used the battery replacement of lead-acid batteries in more than 3,000 base stations in 12 provinces and cities, which fully verified the safety of the use of the ladder and the technical and economic feasibility.

It is reported that the Chinese Tower has stopped purchasing lead-acid batteries in 2018 and used batteries in a unified procurement process. By the end of 2018, about 120,000 base stations in 31 provinces and cities across the country had used 1.5 GWh of ladder batteries, replacing about 45,000 tons of lead-acid batteries.

In addition, Tie Tower cooperated with 11 auto manufacturers such as China FAW and SAIC to plan and build recycling channels, and implemented them in Shanghai, Hubei and Guangdong. It cooperated with recycling enterprises to optimize the recycling process of decommissioned power battery batteries to ensure scrapping. The centralized utilization and harmless disposal of the battery is used in the ladder.

At the same time, it cooperated with China Post, commercial banks, State Grid electric vehicles and other enterprises to study the application of batteries in the engine room backup power supply, power grid peak filling and valley filling, new energy power generation and power dynamic expansion, and is under construction in Hexi area of Gansu Province. 15MWh photovoltaic emission elevator utilization project, 10MWh wind power elevator utilization and other test projects, to improve the overall efficiency of the cascade utilization.

It is worth noting that in the process of vigorously promoting the utilization of power battery ladders, the company has some problems, mainly because the number of decommissioned batteries is currently small, and the downstream enterprises in the industrial chain are competing for the limited retired battery resources. No high. At the same time, the industry still has bottlenecks in technologies such as residual value assessment, and historical information such as the use of power storage batteries is needed to evaluate the performance of decommissioned power storage batteries to ensure that the battery products used in the screening and reorganization are safe and reliable.

According to the plan of the Iron Tower Company, it will continue to expand the use of batteries in 2019. It is estimated that the application of the battery will be about 5GWh, and the lead-acid battery will be replaced by about 150,000 tons. It is estimated that more than 50,000 tons of decommissioned power batteries can be consumed. At the same time, 150 recycling service outlets were established in 17 provinces and cities, and various application modes such as integrated backup power solutions were developed. A number of key common technologies such as residual value assessment and rapid detection were broken, and the technical standardization system was optimized.

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