Li-ion vs. LiFePO₄: Key Differences in Lithium Battery Tech
Lithium-ion (Li-ion) and LiFePO₄ (Lithium Iron Phosphate) are leading lithium-based batteries, but their specs and use cases diverge sharply:
Voltage Specifications:Li-ion: 3.7V nominal (4.2/4.35V charge cutoff; 3.0/2.7V discharge cutoff).LiFePO₄: 3.2V nominal (3.65V charge cutoff; 2.0/2.5V discharge cutoff).
Performance Priorities:Li-ion offers higher energy density (ideal for compact devices), while LiFePO₄ prioritizes safety (low thermal runaway risk) and long cycle life (≥2000 cycles, vs. ~500–1000 for standard Li-ion).
Industry Applications:Li-ion dominates consumer electronics (smartphones, laptops); LiFePO₄ is standard for electric vehicles, grid energy storage, and industrial power systems.
