Subminute diagnostics reveal hidden heterogeneity of deep ageing patterns beyond capacity for second-life lithium-ion batteries - Dataset Part 5

This release provides a large-scale, field-grounded deep-ageing dataset of retired Panasonic NCR18650GA (NCA, 3.5 Ah) cells cycled for three years under consecutive retirement scenarios. It supports cross-dimensional ageing assessment beyond capacity, including energy efficiency, constant-current charge ratio, mid-point voltage, and platform discharge capacity, together with pulse-inspection relaxation voltage (PIRV) measurements that enable equivalent-circuit internal-state identification from 30-second early-charge observations.本数据集发布提供了一套大规模、基于真实应用场景的退役松下（Panasonic）NCR18650GA（NCA，3.5 Ah）电芯深度老化数据集，该批电芯在连续退役工况下完成了长达三年的循环测试。该数据集支持超越容量维度的多维度老化评估，涵盖能效、恒流充电占比、中点电压、平台放电容量等多项指标；同时包含脉冲检测弛豫电压（PIRV）测量数据，可通过30秒早期充电观测实现等效电路内部状态识别。