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Towards the swift prediction of the remaining useful life of lithium-ion batteries with end-to-end deep learning.

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Title: Towards the swift prediction of the remaining useful life of lithium-ion batteries with end-to-end deep learning.
Authors: Hong, Joonki1 (AUTHOR), Lee, Dongheon1 (AUTHOR), Jeong, Eui-Rim1,2 (AUTHOR), Yi, Yung1 (AUTHOR) yiyung@kaist.edu
Source: Applied Energy. Nov2020, Vol. 278, pN.PAG-N.PAG. 1p.
Subjects: Forecasting, Convolutional neural networks, Lithium-ion batteries, Electric vehicle batteries, Error rates
Abstract: This paper presents the first full end-to-end deep learning framework for the swift prediction of lithium-ion battery remaining useful life. While lithium-ion batteries offer advantages of high efficiency and low cost, their instability and varying lifetimes remain challenges. To prevent the sudden failure of lithium-ion batteries, researchers have worked to develop ways of predicting the remaining useful life of lithium-ion batteries, especially using data-driven approaches. In this study, we sought a higher resolution of inter-cycle aging for faster and more accurate predictions, by considering temporal patterns and cross-data correlations in the raw data, specifically, terminal voltage, current, and cell temperature. We took an in-depth analysis of the deep learning models using the uncertainty metric, t-SNE of features, and various battery related tasks. The proposed framework significantly boosted the remaining useful life prediction (25X faster) and resulted in a 10.6% mean absolute error rate. • The first full end-to-end deep learning framework for battery RUL prediction. • Swift RUL prediction with only four cycles of the target battery (25X faster). • Analyzing temporal patterns of terminal voltage, current, and cell temperature. • Reliable use of deep learning-based RUL prediction via uncertainty estimates. • Interpretable analysis on RUL prediction of deep neural networks. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:This paper presents the first full end-to-end deep learning framework for the swift prediction of lithium-ion battery remaining useful life. While lithium-ion batteries offer advantages of high efficiency and low cost, their instability and varying lifetimes remain challenges. To prevent the sudden failure of lithium-ion batteries, researchers have worked to develop ways of predicting the remaining useful life of lithium-ion batteries, especially using data-driven approaches. In this study, we sought a higher resolution of inter-cycle aging for faster and more accurate predictions, by considering temporal patterns and cross-data correlations in the raw data, specifically, terminal voltage, current, and cell temperature. We took an in-depth analysis of the deep learning models using the uncertainty metric, t-SNE of features, and various battery related tasks. The proposed framework significantly boosted the remaining useful life prediction (25X faster) and resulted in a 10.6% mean absolute error rate. • The first full end-to-end deep learning framework for battery RUL prediction. • Swift RUL prediction with only four cycles of the target battery (25X faster). • Analyzing temporal patterns of terminal voltage, current, and cell temperature. • Reliable use of deep learning-based RUL prediction via uncertainty estimates. • Interpretable analysis on RUL prediction of deep neural networks. [ABSTRACT FROM AUTHOR]
ISSN:03062619
DOI:10.1016/j.apenergy.2020.115646