Cross-Stitch Networks for Joint State of Charge and State of Health Online Estimation of Lithium-Ion Batteries

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-05-22 DOI:10.3390/batteries10060171

Jiaqi Yao, S. Neupert, J. Kowal

引用次数: 0

Abstract

As a superior solution to the developing demand for energy storage, lithium-ion batteries play an important role in our daily lives. To ensure their safe and efficient usage, battery management systems (BMSs) are often integrated into the battery systems. Among other critical functionalities, BMSs provide information about the key states of the batteries under usage, including state of charge (SOC) and state of health (SOH). This paper proposes a data-driven approach for the joint online estimation of SOC and SOH utilizing multi-task learning (MTL) approaches, particularly highlighting cross-stitch units and cross-stitch networks. The proposed model is able to achieve an accurate estimation of SOC and SOH in online applications with optimized information sharing and multi-scale implementation. Comprehensive results on training and testing of the model are presented. Possible improvements for future work are also discussed in the paper.

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用于锂离子电池充电状态和健康状态联合在线估算的交叉缝合网络

锂离子电池作为满足不断增长的能源储存需求的卓越解决方案，在我们的日常生活中发挥着重要作用。为确保安全高效地使用电池，电池管理系统（BMS）通常被集成到电池系统中。除其他重要功能外，BMS 还能提供电池在使用过程中的关键状态信息，包括充电状态（SOC）和健康状态（SOH）。本文提出了一种数据驱动型方法，利用多任务学习（MTL）方法，特别是交叉缝合单元和交叉缝合网络，对 SOC 和 SOH 进行联合在线估算。通过优化信息共享和多尺度实施，所提出的模型能够在在线应用中实现对 SOC 和 SOH 的精确估算。本文介绍了模型的训练和测试综合结果。文中还讨论了未来工作中可能的改进措施。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.