Chung Hsien-Ching
Masterhold International Co., Ltd., New Taipei City, 231036, Taiwan.
Super Double Power Technology Co., Ltd., Changhua City, Changhua County, 500042, Taiwan.
Sci Data. 2021 Jul 2;8(1):165. doi: 10.1038/s41597-021-00954-3.
Owing to the popularization of electric vehicles worldwide and the development of renewable energy supply, Li-ion batteries are widely used from small-scale personal mobile products to large-scale energy storage systems. Recently, the number of retired power batteries has largely increased, causing environmental protection threats and waste of resources. Since most of the retired power batteries still possess about 80% of their initial capacity, their second use becomes a possible route to solve the emergent problem. Safety and performance are important when using these second-use repurposed batteries. Underwriters Laboratories (UL), a global safety certification company, published the standard for evaluating the safety and performance of repurposed batteries, i.e., UL 1974. In this work, the test procedures are designed according to UL 1974, and the charge and discharge profile datasets of the LiFePO repurposed batteries are provided. Researchers and engineers can use the characteristic curves to evaluate the quality of the repurposed batteries. Furthermore, the profile datasets can be applied in the model-based engineering of repurposed batteries, e.g., fitting the variables of an empirical model or validating the results of a theoretical model.
由于电动汽车在全球的普及以及可再生能源供应的发展，锂离子电池从小型个人移动产品到大型储能系统都有广泛应用。近来，退役动力电池数量大幅增加，造成环保威胁和资源浪费。由于大多数退役动力电池仍保有约80%的初始容量，其二次利用成为解决这一紧迫问题的可行途径。使用这些二次利用的电池时，安全性和性能很重要。全球安全认证公司美国保险商实验室（UL）发布了评估二次利用电池安全性和性能的标准，即UL 1974。在这项工作中，测试程序依据UL 1974设计，并提供了磷酸铁锂二次利用电池的充放电曲线数据集。研究人员和工程师可以利用这些特性曲线评估二次利用电池的质量。此外，这些曲线数据集可应用于二次利用电池的基于模型的工程中，例如拟合经验模型的变量或验证理论模型的结果。
