How does temperature affect the degradation rate of lithium-ion batteries?

Temperature significantly affects the degradation rate of lithium-ion batteries; generally, higher temperatures accelerate degradation, while lower temperatures (within a reasonable range) can slow it down. Increased temperatures promote several degradation mechanisms within the battery. One major mechanism is the formation of the Solid Electrolyte Interphase (SEI) layer on the anode. The SEI layer is formed by the decomposition of the electrolyte on the surface of the anode, and while a stable SEI layer is necessary for battery function, excessive SEI growth increases resistance and consumes lithium ions, leading t....