Why does LFP battery capacity fade faster in high-mileage ride-hailing vehicles despite its reputation for long life?
Recent reports of 177Ah LFP cells bulging in ride-hailing vehicles after 150,000-300,000 km challenge the 'long-life' narrative. LFP's structural stability is real, but longevity assumes moderate operating conditions and a battery pack designed to manage expansion stress. In high-intensity commercial use, irreversible swelling from SEI growth, gas generation, and electrode particle cracking exceeds design limits. The resulting mechanical pressure degrades interface contact, raises internal resistance, and distorts separators, potentially triggering lithium plating or internal shorts. Many failures occur just after warranty expiry, suggesting pack-level engineering—not just cell chemistry—determines real-world durability. Thermal management and charge protocols matter more for LFP than commonly assumed.
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