期刊论文详细信息
iScience
Data-driven prediction of battery failure for electric vehicles
Junbin Wang1  Heping Ling2  Jingyuan Zhao3  Yubo Lian3  Andrew F. Burke3 
[1] Corresponding author;Institute of Transportation Studies, University of California, Davis, CA 95616, USA;BYD Automotive Engineering Research Institute, Shenzhen 518118, China;
关键词: Electrochemistry;    Electrochemical energy storage;    Computational materials science;   
DOI  :  
来源: DOAJ
【 摘 要 】

Summary: Despite great progress in battery safety modeling, accurately predicting the evolution of multiphysics systems is extremely challenging. The question on how to ensure safety of billions of automotive batteries during their lifetime remains unanswered. In this study, we overcome the challenge by developing machine learning techniques based on the recorded data that are uploaded to the cloud. Using charging voltage and temperature curves from early cycles that are yet to exhibit symptoms of battery failure, we apply data-driven models to both predict and classify the sample data by health condition based on the observational, empirical, physical, and statistical understanding of the multiscale systems. The best well-integrated machine learning models achieve a verified classification accuracy of 96.3% (exhibiting an increase of 20.4% from initial model) and an average misclassification test error of 7.7%. Our findings highlight the need for cloud-based artificial intelligence technology tailored to robustly and accurately predict battery failure in real-world applications.

【 授权许可】

Unknown   

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