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在第一和第二生命使用20个18650离子石墨/LFP细胞的衰老研究

William Wheeler¹, Yann Bultel², Pascal Venet³

¹Universite Claude Bernard Lyon 1, Ampère, UMR5005, INSA Lyon, Ecole Centrale de Lyon, CNRS, F-69100, Villeurbanne, France. william@wheeler.xyz.

Scientific data

|March 6, 2025

概括

本研究提供了关于石墨/铁酸盐 (LiFePO4) 电池在第一和第二生命应用中的长期衰老的综合数据集. 这些数据为在各种压力条件下电池退化提供了宝贵的见解,这对于开发先进的电池管理系统至关重要.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

离子电池对于电动汽车和电网存储至关重要.
了解长期降解对于电池寿命和安全至关重要.
关于二次使用电池应用的数据很少,这阻碍了它们的广泛采用.

研究的目的:

提供关于18650石墨/LiFePO4细胞衰老的全面数据集.
在第一生命和第二生命场景中调查长期衰老行为.
分析不同操作条件对电池容量衰减的影响.

主要方法:

在20个18650石墨/LiFePO4细胞上进行了衰老实验.
每100个周期进行一次表征,以测量容量和伪开放电路电压.
在模拟的电动汽车使用,高电流,各种放电深度和低压窗口下进行测试.

主要成果:

收集了大量关于电池老化的数据,容量损失高达40%.
在各种压力因素下观察到的降解模式.
为研究长期电池性能提供了宝贵的资源.

结论:

该数据集可以研究石墨/FePO4电池的新诊断和预后技术.
促进人工智能驱动的电池建模和优化.
支持第二生命电池应用程序的开发和集成.

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