Advanced Battery Technologies Research · Model or simulation

Do old batteries fail differently?

Paper: Modeling the interplay between aging and thermal runaway propagation in large-format lithium-ion batteries
Yang et al. · Journal of Power Sources Advances 2026 · doi.org/10.1016/j.powera.2026.100203

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Do old batteries fail differently? In simulations of large lithium-ion batteries for heavy vehicles, ageing made thermal runaway start earlier. At about 80% health, it spread in 78% of the original time. With further ageing, it slowed slightly again.

AI-assisted summary with an AI voice, not reviewed by the authors. Made from the paper under its CC BY licence. Read the paper before relying on a finding. Keywords: thermal runaway, thermal runaway propagation, lithium-ion batteries, battery degradation, large-format batteries, heavy-duty electric vehicles.