An Overview About Second-Life Battery Utilization for Energy Storage: Key Challenges and Solutions

Hua Song, Huaizhi Chen, Yanbo Wang () and Xiang-E Sun
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Hua Song: School of Electronics and Information, Yangtze University, Jingzhou 434025, China
Huaizhi Chen: School of Electronics and Information, Yangtze University, Jingzhou 434025, China
Yanbo Wang: School of Electronics and Information, Yangtze University, Jingzhou 434025, China
Xiang-E Sun: School of Electronics and Information, Yangtze University, Jingzhou 434025, China

Energies, 2024, vol. 17, issue 23, 1-26

Abstract: This article provides a comprehensive overview of the potential challenges and solutions of second-life batteries. First, safety issues of second-life batteries are investigated, which is highly related to the thermal runaway of battery systems. The critical solutions for the thermal runaway problem are discussed, including structural optimization, parameter identification, advanced BMS, and artificial intelligence (AI)-based control strategies. Furthermore, the cell inhomogeneity problem of second-life battery systems is analyzed, where the passive balancing strategy and active balancing strategy are reviewed, respectively. Then, the compatibility issue of second-life batteries is investigated to determine whether electrical dynamic characteristics of a second-life battery can meet the performance requirements for energy storage. In addition, date security and protection methods are reviewed, including digital passport, smart meters and Internet of Things (IoT). The future trends and solutions of key challenges for second-life battery utilization are discussed.

Keywords: second-life battery; thermal runaway; AI; cell inhomogeneity; balancing; compatibility; data; digital passport; smart meters; Internet of Things (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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