LFP vs. NMC Degradation Curve Database (CSV)

This database consolidates accelerated aging test results—typically spanning thousands of cycles and multiple temperature/stress conditions—from peer-reviewed studies and industry validation campaigns (e.g., USABC, CALCE, and EU Battery 2030+ initiatives). Each row represents a unique aging condition (e.g., 45°C, 1C charge/discharge, 80% DoD) and includes time-series or endpoint metrics such as normalized capacity (Ah), DC internal resistance (mΩ), voltage hysteresis, and differential voltage (dV/dQ) features. Degradation curves are derived from galvanostatic cycling data fitted to empirical or physics-informed models (e.g., power-law, exponential, or SEI-growth-based equations), allowing interpolation and extrapolation of lifetime behavior. The database supports techno-economic analysis by linking degradation rates to calendar/cycle life, energy throughput (MWh/ton), and end-of-life (EoL) definitions (e.g., 80% capacity retention). Crucially, it highlights fundamental differences: LFP exhibits slower capacity fade but higher resistance growth at low SoC extremes, while NMC shows steeper capacity loss above 4.2 V and pronounced transition-metal dissolution—both reflected in curve shape, inflection points, and stress-dependence.