Energy Storage Science and Technology ›› 2022, Vol. 11 ›› Issue (2): 717-725.doi: 10.19799/j.cnki.2095-4239.2021.0487

• Technical Economic Analysis of Energy Storage • Previous Articles     Next Articles

Analysis of economics and economic boundaries of large-scale application of power batteries in cascade utilization

Xiong LI(), Peiqiang LI()   

  1. College of Electrical and Information Engineering, Hunan University, Changsha 410082, Hunan, China
  • Received:2021-09-16 Revised:2021-10-08 Online:2022-02-05 Published:2022-02-08
  • Contact: Peiqiang LI E-mail:xiao_xiong@88.com;lpqcs@hnu.edu.cn

Abstract:

The tide of electric vehicle power battery decommissioning is approaching, and the disposal of numerous retired power batteries has currently become a major problem. An effective way to solve this problem is by applying them to energy storage systems on a large scale. Research on the economics of cascaded energy storage will promote scale. The application has significant practical importance. First, the cost types of the cascade energy storage system are analyzed, and its cost sensitivity parameters are analyzed using the levelized cost model. Second, it analyzes the current state of echelon usage of decommissioned batteries and discusses the development trend of key echelon usage technologies. Finally, it analyzes the boundary values of profitability and superiority over new batteries in the large-scale application of echelon energy storage to guide echelon usage.

Key words: echelon utilization, economy, leveling costs, sensitivity, economic

CLC Number: