Prevents Thermal Runaway 

Thermal runaway can be caused by either an internal short circuit (manufacturing defect) or overheating of the Li-ion cell (typically from exposure to temperatures above 60°C).  When a cell enters thermal runaway its temperature increases rapidly.  Depending on its chemistry and level of charge, a cell in thermal runaway can reach temperatures in excess of 400°C.

Cells in a battery pack are in close proximity to one another.  If thermal runaway occurs in a single cell, the thermal management system must be able to absorb that heat and prevent adjacent cells from entering thermal runaway in order to prevent a fire or explosion.  Simulation results and field tests show AllCell's PCM technology successfully prevents thermal runaway from occurring throughout the battery pack.