期刊
MEASUREMENT
卷 204, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2022.112065
关键词
Lithium-ion battery; Self-discharge; Classifier; Neural network
资金
- Special project for the cultivation of scientific and technological achievements, China [IMIPY2021006]
- Intelligent Manufacturing Institute of HFUT
This study proposes a method for predicting the self-discharge voltage drop (SDV-drop) of lithium-ion batteries based on a pre-classifier. The method obtains features for predicting SDV-drop through direct extraction and generation from the charge-discharge curve, which are then input into an optimized neural network model to accurately predict SDV-drop.
The self-discharge voltage drop (SDV-drop) is an important indicator in measuring the performance of lithium -ion batteries. Traditional SDV-drop measurement methods are time-consuming and require considerable manpower and material resources. This study proposes a method for predicting battery SDV-drop based on pre-classifier. The features for predicting the SDV-drop are obtained in two ways: direct extraction from the charge-discharge curve and generation based on the classifier. Subsequently, the features are input into the BP neural network model optimized by the Particle Swarm Optimization (PSO) and Levenberg-Marquardt (L-M) algorithms to predict the SDV-drop. Simulation results show that the proposed method can accurately estimate the SDV-drop.
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