DIN Standards Committee Mechanical Engineering
Test requirements for fire-protection storage cabinets for lithium-ion batteries in the case of thermal runaway
Abstract
This document shall specify test requirements for fire-protection storage cabinets for lithium-ion batteries. A good basis for this document could be the new industry standard VDMA 24994 that is published on 1 August 2024 It tests the fire resistance of the cabinets in which a thermal runaway of batteries occurs and tests that the temperature outside of the cabinet does not rise above a certain level and that no projectiles or fragments go out of the cabinet during a thermal runaway. Classes I/O30, I/O60 and I/O90 additionally test the fire resistance of the cabinet from outside fires. This document is applicable to detachable / portable lithium-ion batteries with a weight equal to or less than 25 kg. Active charging of the lithium-ion batteries may be possible inside the cabinet. In order to take the worst case into account, the maximum possible energy of batteries on one shelf shall be tested. In order to ensure reproducibility of the test, this guideline assumes, that the thermal runaway occurs in a single battery box with the maximum possible energy per shelf. This document is not applicable to not permanently installed storage devices, does not verify battery characteristics, and does not test active security/safety measures inside of the cabinet such as fire detection systems and fire extinguishing systems.
Begin
2025-10-15
WI
00263048
Planned document number
00263048
Responsible national committee
NA 060-20-01 AA - Safes and strongrooms (SpA CEN/TC 263, CEN/TC 263/WG 1, WG 2 and WG 3)
