OPERATIONAL RISK ASSESSMENT OF LITHIUM-ION BATTERIES BASED ON VARIABLE WEIGHT THEORY AND CLOUD MODEL

Shi Zhenglu; Xu Jiazhu; He Yang; Hu Hao

doi:10.19912/j.0254-0096.tynxb.2025-0563

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (8) : 46-55. DOI: 10.19912/j.0254-0096.tynxb.2025-0563

OPERATIONAL RISK ASSESSMENT OF LITHIUM-ION BATTERIES BASED ON VARIABLE WEIGHT THEORY AND CLOUD MODEL

Shi Zhenglu, Xu Jiazhu, He Yang, Hu Hao

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Abstract

To ensure the safe and reliable operation of lithium-ion batteries （LIBs）, a risk assessment method is proposed based on variable weight theory combined with the cloud model. Firstly, a comprehensive evaluation index system incorporating multiple decision factors is established by integrating various operational risk factors of LIBs, enabling holistic and objective assessment of their operational status. Subsequently, moment estimation and variable weight theory are employed to dynamically integrate and adjust the subjective and objective weights of each indicator, resulting in more reliable and precise weight coefficients. Furthermore, cloud model is adopted to conduct risk assessment and determine the risk level of LIBs operation. Finally, simulation analyses using both the proposed method and conventional approaches are performed on five LIBs from an energy storage station under different operating conditions. Results indicate that the proposed method achieves accurate operational risk assessment for LIBs.

Key words

lithium-ion batteries / risk assessment / cloud model / variable weight theory / comprehensive evaluation index system / moment estimation

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Shi Zhenglu, Xu Jiazhu, He Yang, Hu Hao. OPERATIONAL RISK ASSESSMENT OF LITHIUM-ION BATTERIES BASED ON VARIABLE WEIGHT THEORY AND CLOUD MODEL[J]. Acta Energiae Solaris Sinica. 2026, 47(8): 46-55 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0563

References

[1] 陈西江, 毛晓萱, 胡少华. 电化学储能电站运行风险评价模型与应用研究[J]. 安全与环境学报, 2025, 25(4): 1257-1266.
Chen X J, Mao X X, Hu S H.Research on operation risk assessment model and application of electrochemical energy storage power station[J]. Journal of Safety and Environment, 2025, 25(4): 1257-1266.
[2] 袁帅, 崔煜杰, 程东浩, 等. 2017—2024年全球电化学储能电站火灾爆炸事故统计分析[J]. 储能科学与技术, 2025, 14(6): 2362-2376.
Yuan S, Cui Y J, Cheng D H, et al.Statistical analysis of fire and explosion accidents in electrochemical energy-storage stations from 2017 to 2024 throughout the world[J]. Energy Storage Science and Technology, 2025, 14(6): 2362-2376.
[3] 徐俊, 郭喆晨, 谢延敏, 等. 储能锂电池系统综合管理研究进展[J]. 西安交通大学学报, 2024, 58(10): 1-23.
Xu J, Guo Z C, Xie Y M, et al.Review of research progress in integrated management for energy storage lithium battery systems[J]. Journal of Xi’an Jiaotong University, 2024, 58(10): 1-23.
[4] 于璐, 张辉, 田培根, 等. 一种梯次利用电池可重构储能系统多级在线安全评估及风险预警定位方法[J]. 太阳能学报, 2022, 43(5): 461-467.
Yu L, Zhang H, Tian P G, et al.Multi-level on-line safety assessment of reconfigurable energy storage system using secondary batteries risk warning postitioning method[J]. Acta Energiae Solaris Sinica, 2022, 43(5): 461-467.
[5] 李建林, 武亦文, 王楠, 等. 吉瓦级电化学储能电站信息架构与安防体系综述[J]. 电力系统自动化, 2021, 45(23): 179-191.
Li J L, Wu Y W, Wang N, et al.Review of information architecture and security system of gigawatt electrochemical energy storage power station[J]. Automation of Electric Power Systems, 2021, 45(23): 179-191.
[6] 陈豪, 刁嘉, 白恺, 等. 储能锂电池运行状态综合评估指标研究[J]. 中国电力, 2016, 49(5): 149-156.
Chen H, Diao J, Bai K, et al.Research on evaluation indicators for a comprehensive assessment of operating status of lithium battery energy storage[J]. Electric Power, 2016, 49(5): 149-156.
[7] 肖勇, 徐俊. 基于组合赋权与TOPSIS的储能电站电池安全运行风险评价[J]. 储能科学与技术, 2022, 11(8): 2574-2584.
Xiao Y, Xu J.Risk assessment of battery safe operation in energy storage power station based on combination weighting and TOPSIS[J]. Energy Storage Science and Technology, 2022, 11(8): 2574-2584.
[8] 王兴春, 吴菲, 郁颖蕾. 电化学储能电站风险评估指标体系设计[J]. 化工安全与环境, 2022, 35(47): 18-23.
Wang X C, Wu F, Yu Y L.Design of risk assessment index system for electrochemical energy storage power station[J]. Chemical Safety & Environment, 2022, 35(47): 18-23.
[9] 宁雪峰, 张慧珍, 许加柱. 基于改进AHP-TOPSIS的储能电站安全综合评估[J]. 太阳能学报, 2024, 45(5): 251-259.
Ning X F, Zhang H Z, Xu J Z.Comprehensive safety evaluation of energy storage power station based on improved ahp-topsis[J]. Acta Energiae Solaris Sinica, 2024, 45(5): 251-259.
[10] Zhang H Z, Xu J Z, Shi Z L, et al.Fuzzy comprehensive safety state evaluation of energy storage batteries based on variable weight theory and combination weighting[C]//2023 International Conference on Power System Technology (PowerCon). Ji’nan, China, 2023: 1-6.
[11] 侯健敏, 徐志豪, 余威杰, 等. 基于灰色-前景改进优劣解距离法的多气候区建筑三联供系统多准则评估[J]. 电网技术, 2023, 47(7): 2659-2670.
Hou J M, Xu Z H, Yu W J, et al.Multi-criterion evaluation framework of building triple supply system in multi-climate regions based on grey-prospect TOPSIS[J]. Power System Technology, 2023, 47(7): 2659-2670.
[12] Wang L Z, Jiang S Y, Mao Y T, et al.Lithium-ion battery state of health estimation method based on variational quantum algorithm optimized stacking strategy[J]. Energy Reports, 2024, 11: 2877-2891.
[13] Wang L Z, Bu Y, Wu Y C.Multi-scale risk-informed comprehensive assessment methodology for lithium-ion battery energy storage system[J]. Sustainability, 2024, 16(20): 9046-9069.
[14] Tan J W, Chen X Y, Bu Y, et al.Incorporating FFTA based safety assessment of lithium-ion battery energy storage systems in multi-objective optimization for integrated energy systems[J]. Applied Energy, 2024, 367: 123472
[15] Grabow J, Klink J, Orazov N, et al.Triggering and characterisation of realistic internal short circuits in lithium-ion pouch cells: a new approach using precise needle penetration[J]. Batteries, 2023, 9(10): 496.
[16] Liu B H, Jia Y K, Yuan C H, et al.Safety issues and mechanisms of lithium-ion battery cell upon mechanical abusive loading: a review[J]. Energy Storage Materials, 2020, 24: 85-112.
[17] Moslem S.A novel parsimonious spherical fuzzy analytic hierarchy process for sustainable urban transport solutions[J]. Engineering Applications of Artificial Intelligence, 2024, 128: 107447.
[18] Chen Y N, Xie S Y, Tian Z G.Risk assessment of buried gas pipelines based on improved cloud-variable weight theory[J]. Reliability Engineering & System Safety, 2022, 221: 108374.
[19] Li D Y, Liu C Y, Gan W Y.A new cognitive model: cloud model[J]. International Journal of Intelligent Systems, 2009, 24(3): 357-375.
[20] 于璐, 张辉, 田培根, 等. 一种退役动力电池梯次利用储能系统安全评估方法[J]. 太阳能学报, 2022, 43(5): 446-453.
Yu L, Zhang H, Tian P G, et al.A battery safety evaluation method for reuse of retired power battery in energy storage system[J]. Acta Energiae Solaris Sinica, 2022, 43(5): 446-453.