arXiv:2508.06985cs.LGcs.CE2025-08

用AI从历史数据中学习,快速预测电池寿命,省时98%、省电95%

Discovery Learning accelerates battery design evaluation

  • 融合主动学习与物理引导,实现零样本预测
  • 仅用公开数据,对新组合预测误差仅7.2%
  • 适合电池研发、材料设计人员快速筛选方案

在复杂物理系统如电池中,快速可靠地验证新设计对推动技术革新至关重要。然而,电池研发仍受限于原型制作和寿命测试所需的巨大时间和能源成本。尽管已有数据驱动的电池寿命预测方法,但这些方法需目标设计的标注数据才能提升精度,且必须在原型完成后才能进行可靠预测,远无法满足快速反馈的需求。本文提出发现学习(Discovery Learning, DL),一种融合主动学习、物理引导学习与零样本学习的科学机器学习范式,借鉴教育心理学中的学习理论,构建类人推理闭环。DL可从历史电池设计中学习,并主动减少原型依赖,从而在无需额外标注数据的情况下,实现对未观测材料-设计组合的快速寿命评估。为验证该方法,我们构建了123个工业级大容量锂离子软包电池,涵盖八种材料-设计组合及多种循环协议。模型仅基于公开的小容量圆柱电池数据集训练,即可在未知设备变异性条件下实现平均循环寿命预测7.2%的测试误差。相比工业实践,分别节省98%时间与95%能源。本研究展示了从历史设计中挖掘洞见以加速下一代电池技术发展的潜力。DL为高效数据驱动建模提供了关键进展,助力机器学习真正赋能科学发现与工程创新。

原文摘要 · Abstract (English)

Fast and reliable validation of novel designs in complex physical systems such as batteries is critical to accelerating technological innovation. However, battery research and development remain bottlenecked by the prohibitively high time and energy costs required to evaluate numerous new design candidates, particularly in battery prototyping and life testing. Despite recent progress in data-driven battery lifetime prediction, existing methods require labeled data of target designs to improve accuracy and cannot make reliable predictions until after prototyping, thus falling far short of the efficiency needed to enable rapid feedback for battery design. Here, we introduce Discovery Learning (DL), a scientific machine-learning paradigm that integrates active learning, physics-guided learning, and zero-shot learning into a human-like reasoning loop, drawing inspiration from learning theories in educational psychology. DL can learn from historical battery designs and actively reduce the need for prototyping, thus enabling rapid lifetime evaluation for unobserved material-design combinations without requiring additional data labeling. To test DL, we present 123 industrial-grade large-format lithium-ion pouch cells, spanning eight material-design combinations and diverse cycling protocols. Trained solely on public datasets of small-capacity cylindrical cells, DL achieves 7.2% test error in predicting the average cycle life under unknown device variability. This results in savings of 98% in time and 95% in energy compared to industrial practices. This work highlights the potential of uncovering insights from historical designs to inform and accelerate the development of next-generation battery technologies. DL represents a key advance toward efficient data-driven modeling and helps realize the promise of machine learning for accelerating scientific discovery and engineering innovation.

电池设计机器学习零样本加速研发

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