Correlative non-destructive techniques to investigate ageing and orientation effects in automotive Li-ion pouch cells - Thermal Imaging Dataset

Thermal imaging done during discharging of four Nissan Leaf first generation large-size pouch cells, differently orientated during electric vehicle life (R-rotated oriented and F-flat oriented). Results coupled with other non-destructive techniques and published in "Correlative non-destructive techniques to investigate ageing and orientation effects in automotive Li-ion pouch cells" paper in Joule journal. Dataset consists of eight *.mat files where every file is 3D matrix (temperature data over battery surface (2D) and third dimension represents discharging time at every 2s). Relative_Temperature.mat files consist of battery surface relative temperature maps, while Temperature_Derivative.mat files consist of battery surface temperature derivative over time maps during discharging. Data in Excel format present voltage-capacity dependence during discharging, mean relative temperature, maximum relative temperature, maximum temperature derivative over the battery surface during discharging and electrochemical impedance spectroscopy (EIS) measurement at different depth-of-discharge (DoD). There is also comparative video file (Video S1) generated from *.mat files.

本数据集由八份*.mat文件组成，记录了四款第一代日产聆风大型软包电池在放电过程中的热成像数据，这些电池在电动汽车使用寿命期间具有不同的取向（R-旋转取向和F-平坦取向）。该数据集与其他无损检测技术相结合，并已在《Joule》期刊发表的《关联无损技术探究汽车锂离子软包电池的衰老和取向效应》一文中公布。每个文件均为三维矩阵（电池表面温度数据（二维）以及第三维度表示每2秒的放电时间）。Relative_Temperature.mat文件包含电池表面相对温度图，而Temperature_Derivative.mat文件包含放电过程中电池表面温度随时间的变化率图。Excel格式的数据展示了放电过程中的电压-容量依赖关系、平均相对温度、最大相对温度、放电过程中电池表面的最大温度变化率以及在不同放电深度（DoD）下的电化学阻抗谱（EIS）测量值。此外，还包括由*.mat文件生成的比较视频文件（Video S1）。