Assess learners' ability to analyze electrochemical and thermal failure mechanisms in lithium‑ion cells during high‑rate (fast) charging. Test interpretation of diagnostic data (voltage and dV/dt curves, EIS, temperature maps), identification of root causes (lithium plating, SEI growth, electrolyte decomposition, internal shorts, thermal runaway), evaluation of influencing factors (C‑rate, SOC, temperature, cell design), and formulation of mitigation, testing, and monitoring strategies for safety and longevity.