Prediction method for battery self-discharge voltage drop based on pre-classifier
Measurement(2022)
Abstract
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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Key words
Lithium-ion battery,Self-discharge,Classifier,Neural network
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