This result suggests that appropriate low temperature storage has a limited impact on the thermal safety of lithium-ion batteries, providing valuable insights into the selection of suitable storage temperatures for the low-temperature transport of lithium-ion batteries.
Zhang et al. evaluated the thermal stability of lithium-ion batteries after long-term calendar aging at 60 °C using accelerating rate calorimetry (ARC) and found that both the onset temperature of the self-exothermic reaction and the onset temperature of TR decreased with increasing storage time.
Jilte et al. observed that the localized temperature zone within lithium battery cells is influenced by the module’s position. In certain specific areas of the battery, temperature increases of up to 7 degrees Celsius were recorded, leading to the formation of a temperature gradient and compromising thermal uniformity within the battery cell.
Wang investigated the combustion characteristics of lithium-ion batteries following long-term high-temperature storage caused by external heating abuse. The results demonstrate a reduction in the maximum flame temperature, flame height, and combustion intensity during the TR of batteries after long-term storage at high temperatures.
The high temperature storage can cause various changes in battery chemistry, including particle cracking of the cathode, thickening of the SEI/CEI layer, the production of unstable organic byproducts, resistance growth, etc., all of which contribute to the reduced thermal stability of batteries [38, 46, 47].
Scientific Reports 5, Article number: 12967 (2015) Cite this article Temperature is known to have a significant impact on the performance, safety and cycle lifetime of lithium-ion batteries (LiB). However, the comprehensive effects of temperature on the cyclic aging rate of LiB have yet to be found.
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