Battery cumulative lifetime prognostics to bridge laboratory and real-life scenarios

IF 7.9 2区 综合性期刊 Q1 CHEMISTRY, MULTIDISCIPLINARY Cell Reports Physical Science Pub Date : 2024-08-21 DOI:10.1016/j.xcrp.2024.102164
Dongzhen Lyu, Bin Zhang, Enrico Zio, Jiawei Xiang
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Abstract

Battery operating data from real-life scenarios are riddled with randomness, complexity, and multi-cell grouping, posing significant challenges for applying lifetime prognostic approaches developed from laboratory scenarios. To address this, we have conducted extensive experimental investigations into battery degradation across laboratory and real-life scenarios spanning a 4 year period, involving a total of approximately 546,000 charge-discharge cycles across hundreds of cells and packs. In addition to our experimental investigations, we develop a lifetime prognosis approach by creatively incorporating the concept of cumulative utilization lifetime. Our approach highlights the significant potential of transferring knowledge gained from standardized laboratory scenarios to diverse real-world conditions. It consistently improves performance from early prediction to real-time prediction, achieving a remarkable error margin of around 5% and millisecond-level computational efficiency on a portable laptop with no dedicated graphics. Furthermore, our experimental investigations underscore the beneficial effects of seasonal low temperatures on prolonging battery lifetime.

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电池累积寿命预报技术将实验室和现实生活场景融为一体
现实生活中的电池运行数据充满了随机性、复杂性和多电池组,这给应用实验室场景开发的寿命预测方法带来了巨大挑战。为了解决这个问题,我们在实验室和现实生活场景中对电池退化进行了广泛的实验研究,时间跨度长达 4 年,涉及数百个电池和电池组,总计约 546,000 次充放电循环。除实验研究外,我们还创造性地融入了累积使用期限的概念,从而开发出一种使用寿命预报方法。我们的方法凸显了将从标准化实验室场景中获得的知识转移到各种实际条件中的巨大潜力。从早期预测到实时预测,该方法的性能不断提高,在没有专用图形处理器的便携式笔记本电脑上实现了约 5% 的显著误差率和毫秒级的计算效率。此外,我们的实验研究还强调了季节性低温对延长电池寿命的有利影响。
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来源期刊
Cell Reports Physical Science
Cell Reports Physical Science Energy-Energy (all)
CiteScore
11.40
自引率
2.20%
发文量
388
审稿时长
62 days
期刊介绍: Cell Reports Physical Science, a premium open-access journal from Cell Press, features high-quality, cutting-edge research spanning the physical sciences. It serves as an open forum fostering collaboration among physical scientists while championing open science principles. Published works must signify significant advancements in fundamental insight or technological applications within fields such as chemistry, physics, materials science, energy science, engineering, and related interdisciplinary studies. In addition to longer articles, the journal considers impactful short-form reports and short reviews covering recent literature in emerging fields. Continually adapting to the evolving open science landscape, the journal reviews its policies to align with community consensus and best practices.
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