Lithium-ion battery degradation dataset based on a realistic forklift operation profile

The dataset contains ageing data from three prismatic Lithium-ion (Li-ion) battery cells. The three cells were aged using a realistic forklift operations profile, with a length of approximately two weeks, which was distilled from a four-month forklift field operation. In order to accelerate the aging of the battery cells they were aged at higher temperatures (45, 40, and 35 degC for cells 1, 2, and 3, respectively) and all idling periods found in the forklift field operation were removed. Furthermore, to match the specifications of the battery test stations, the charging/discharging current during the aging with the realistic forklift load profile was limited to 50 A. The SOC profile of the battery cells aged using the realistic forklift load profile was identical to the SOC profile of the forklift field-operated batteries. A round of ageing consists of two steps: (1) the ageing (using the realistic forklift profile), and (2) a reference performance test. These two steps were repeated 58 times for 'Cell 1' and 'Cell 2', and 53 times for 'Cell 3'. The periodic reference performance test can be used to extract exact health information allowing for the tracking of the degradation of each cell.

本数据集包含3个棱柱形锂离子（Lithium-ion，Li-ion）电池电芯的老化测试数据。该3个电芯采用贴合真实叉车作业场景的循环工况进行老化加速，该工况时长约两周，其源自对4个月叉车现场作业数据的提炼。为加速电芯老化，分别在45℃、40℃、35℃下对电芯1、电芯2、电芯3开展老化测试，并移除了叉车现场作业中存在的所有怠速时段。此外，为匹配电池测试台的规格要求，采用该真实叉车负载工况进行老化时，充放电电流被限制为50A。采用该真实叉车负载工况老化的电芯的荷电状态（State of Charge，SOC）曲线，与叉车现场作业电池的SOC曲线完全一致。一轮老化流程包含两个步骤：(1) 基于真实叉车工况的老化测试；(2) 参考性能测试（reference performance test）。该两步流程对电芯1和电芯2重复执行了58次，对电芯3重复执行了53次。周期性开展的参考性能测试可用于提取精准的电池健康状态信息，从而实现对每个电芯的衰减情况进行追踪。

搜集汇总

背景与挑战

背景概述

该数据集包含三个棱柱形锂离子电池在模拟叉车操作条件下的老化数据，通过高温环境和去除闲置时间加速老化过程，并限制充放电电流为50A。数据集还包括周期性参考性能测试，用于精确跟踪电池退化情况。