Energy Storage Science and Technology ›› 2023, Vol. 12 ›› Issue (6): 1981-1994.doi: 10.19799/j.cnki.2095-4239.2023.0316

• Energy Storage Test: Methods and Evaluation • Previous Articles     Next Articles

Review of key technology research on the reliability of power lithium batteries based on big data

Fang LI(), Yongjun MIN(), Yong ZHANG   

  1. College of Automobile and Traffic Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
  • Received:2023-05-05 Revised:2023-05-19 Online:2023-06-05 Published:2023-06-21
  • Contact: Yongjun MIN E-mail:lf1830661941@163.com;yjmin@njfu.edu.cn

Abstract:

Lithium-ion batteries are the mainstream energy storage component for electric vehicles. The reduced reliability of lithium-ion batteries leads to abnormal performance degradation or frequent failures for electric vehicles, resulting in accidents that threaten safety. The study of battery fault diagnosis and the state of health estimation technology has become a research hotspot in the field of lithium-ion battery reliability. The deep integration of big data and electric vehicles has provided new insights into the development of key technologies for improving the reliability of lithium-ion batteries. Herein, the data characteristics of the big data platform for new energy vehicles and the data cleaning methods they utilize are first introduced. The application of key reliability technologies based on the findings from big data in electric vehicles and big data platforms is briefly reviewed. Furthermore, the previous research on battery fault diagnosis and state of health estimation analyzing the reliability of lithium-ion batteries is reviewed. Considering a data-driven model as the core method of inquiry, the research status and methods used to analyze big data pertaining to the fault diagnosis and state of health estimation of lithium-ion batteries are discussed. The advantages and disadvantages of machine learning, statistics, signaling, and fusion models in battery fault diagnosis are discussed. The theoretical basis for extracting features based on historical operating data and incremental capacity analysis is reviewed, and the battery state of health estimation models are sorted appropriately. Finally, the limitations and challenges of the current research in data cleaning, fault diagnosis, and health status prediction of lithium-ion batteries are summarized. Thus, this paper provides the future direction for the development of key reliability technologies for estimating the reliability of lithium-ion batteries.

Key words: big data, lithium-ion battery, reliability, fault diagnosis, state of health

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