"LFP-Cycling-Dataset-MultiTemp-FastVsRecommended"
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"The 19 cells confined in the Arbin chambers follow a cycle consisting of a charging phase followed by a discharging phase. For the charging phase, the cells are recharged according to several charging policies: normal charge, i.e., nominal charging current announced by the manufacturer, fast charge, i.e., maximum charging current announced by the manufacturer.Discharge is carried out according to the Worldwide Harmonized Light Vehicles Test Cycle (WLTC) driving cycle. The standard WLTC is used to assess the performances of light-duty vehicles, particularly electric vehicles, and to measure electric range. This procedure proposes different types of WLTC cycles,on the vehicle class tested (class 1, 2, 3). For each class of vehicle, the driving cycle in the form of speed profiles is divided into several sections representing different driving environments: in built-up areas, outside built-up areas, and on freeways. These driving cycles are shared on the United Nations Economic Commission for Europe.Using an electric vehicle traction model, these cycles were transformed into power cycles, which were used to derive current-normalized setpoint cycles, allowing the cells to be charged or discharged according to the original driving cycles (images of current normalized speed and equivalent cycles). The current intensity of these cycles was then adapted to match the cells' discharge capacity, to achieve accelerated cell degradation.A healthcheck cycle consisting of charging and discharging the battery at a constant current is used to monitor the battery's state of health. This procedure is performed every $6$ driving cycles on the battery.The goal is to generate data that will enable to differentiate the impact of battery temperature conditioning (25, 35, 45), as well as recharging speed (i.e., recharging current intensity) on premature battery degradation. Driving cycles are used to simulate real-life use of the battery in an electric vehicle and to obtain degradation curves in this perspective."
置于Arbin测试舱内的19颗电芯遵循由充电阶段与放电阶段组成的循环流程。充电阶段中，电芯采用两种充电策略进行充电：常规充电，即采用厂商公布的标称充电电流；快充，即采用厂商公布的最大充电电流。放电环节则依据全球统一轻型车辆测试循环（Worldwide Harmonized Light Vehicles Test Cycle, WLTC）工况执行。标准WLTC工况用于评估轻型车辆（尤其是电动汽车）的性能，并测算其续航里程。该测试流程针对不同等级的受试车辆（1类、2类、3类）提供了差异化的WLTC工况。针对每一类车辆，以速度曲线形式呈现的行驶工况被划分为多个区段，分别对应不同的行驶场景：城镇建成区、城镇建成区外以及高速公路。上述行驶工况由联合国欧洲经济委员会公开共享。借助电动汽车牵引模型，上述行驶工况被转换为功率工况，进而推导得到电流归一化设定点工况，使得电芯能够按照原始行驶工况进行充放电（包含电流归一化速度与等效工况的可视化图像）。随后，调整这些工况的电流强度，使其匹配电芯的放电容量，以此实现电芯的加速老化。采用由恒流充放电组成的健康检查工况，用于监测电芯的健康状态。该流程每完成6次行驶工况后便会对电芯开展一次健康检查。本数据集的构建目标是生成可用于区分电池温度调控（25℃、35℃、45℃）与充电速度（即充电电流强度）对电池过早老化的影响的实验数据。行驶工况用于模拟电动汽车中电池的实际使用场景，并以此获取对应的老化曲线。
