HKUST lithium ion battery dataset

This dataset encompasses cycling experiments conducted on lithium-ion batteries, involving 5 distinct batches, each originating from a different manufacturer. Within each batch, there were 6 batteries subjected to testing. The battery types employed for testing included cylindrical 21700 cells and 18650 type and nickel manganese cobalt or nickel cobalt aluminum.The testing procedure consisted of an initial Constant Current (CC) charging step, taking the batteries to 4.2 V at a rate of 0.5 C, followed by a Constant Voltage (CV) step that maintained the voltage at 4.2 V until the current dropped to 0.02 C. Subsequently, the cells underwent discharge at a rate of 1 C until the voltage reached 2.5 V.For the light cycling profile, a similar CC-CV charging protocol was applied, with an initial CC charge to 4.1 V at 0.5 C, followed by CV charging at 4.1 V until the current decayed to 0.02 C. A constant current discharge at 1 C was then executed, with a lower voltage cutoff set at 3.0 V. In all instances, there was a resting period of 10 minutes between the charge and discharge stages. The C-rate for each cell was calculated based on the nominal capacity specified by the manufacturer.

本数据集涵盖针对锂离子电池开展的循环测试实验，共包含5个独立批次，每个批次均来自不同的制造商，且每批包含6颗待测电池。本次实验所用的电池类型包括圆柱形21700电芯、18650电芯，以及镍锰钴（NMC）或镍钴铝（NCA）体系电池。标准测试流程如下：首先执行恒流（Constant Current, CC）充电步骤，以0.5C倍率将电池充电至4.2V，随后进入恒压（Constant Voltage, CV）充电阶段，维持4.2V电压直至充电电流衰减至0.02C；完成充电后，将电池以1C倍率恒流放电至电压降至2.5V。对于轻载循环测试工况，采用与之相似的CC-CV充电协议：首先以0.5C倍率恒流充电至4.1V，随后维持4.1V恒压充电直至电流衰减至0.02C；之后以1C倍率恒流放电，放电截止电压设为3.0V。所有测试流程中，充电与放电阶段之间均设置10分钟的静置时长。每颗电池的C倍率（C-rate）均根据制造商标注的标称容量计算得到。

搜集汇总

背景与挑战

背景概述

该数据集包含来自5个不同制造商的锂离子电池循环实验数据，每个制造商批次测试6个电池，电池类型涵盖圆柱21700、18650以及镍锰钴或镍钴铝化学体系。实验采用标准化的恒流恒压充放电协议，记录了充电至4.2V或4.1V、放电截止电压2.5V或3.0V的详细过程，适用于能源和交通领域的研究。