Store the cell and battery in an environment with a temperature of 20 + 5 ° C and an atmospheric pressure of no more than 11.6kpa for no less than 6 hours.
voltage shall not be lower than 90% of the open circuit voltage before the test. This requirement is not applicable to batteries and cells that are fully discharged.
Results: there was no leakage, exhaust, disassembly, rupture and ignition.

The battery shall be stored for 6h under the excellent pressure of 11.6kpa (1.68psi) and 20 + 3 ° C (68 + 5 ° f).
Result: no fire, explosion and liquid leakage.

Place the battery in a vacuum box at 20 ° C + 5 ° C, vacuumize to reduce the pressure in the box to 11.6kpa (simulated altitude 15240m) and keep it for 6h.
Result: no fire, explosion and liquid leakage.

The battery was tested for 6h under the condition of ambient temperature of 20 ° C + 5 ° C and air pressure of 11.6kpa (simulated altitude of 15240m).
Result: no fire, explosion and liquid leakage