An integrated experimental platform is established to simultaneously perform charge–discharge cycling, electrochemical impedance spectroscopy (EIS), and swelling displacement/force measurements using custom-designed jigs under controlled temperature environments. Both accelerated degradation and stochastic operating experiments reflecting real-world EV driving irregularity are conducted to acquire high-quality degradation datasets. These datasets serve as the foundation for SOH estimation and lifetime prediction model development. 

• Integrated multi-measurement platform: Simultaneous charge–discharge cycling, EIS measurement, and swelling/force monitoring within a single experimental system

• Custom measurement jig design: In-house development of displacement sensor-based swelling measurement jigs and force measurement jigs for quantifying mechanical degradation of pouch cells 

• Accelerated and stochastic operating experiments: Comprehensive coverage of both accelerated degradation conditions and stochastic operating experiments reflecting the irregularity of real-world vehicle operation

• SOH diagnostics integration: Combined analysis of EIS and charge–discharge data to establish the foundation for state-of-health (SOH) estimation

• Generation of high-quality degradation datasets applicable for SOH/RUL prediction model training

• Contribution to non-destructive degradation diagnostics through elucidation of swelling–impedance–capacity correlations

• Provision of experimental evidence for battery life management strategies under real-world operating conditions in EVs and ESS