From CATL we see how BESS requirements differ from automotive and what an initial high level list of tests looks. Here we use that list and expand it over time. For the wider system context, see Battery Energy Storage Systems.
- Cell
- vibration
- mechanical impact
- cycle performance
- expansion force
- storage performance
- temperature shock
- overcharge and overdischarge
- Module
- vibration
- mechanical impact
- cyclic
- expansion force
- high temperature storage
- IP level
- temperature shock
- Subsystem
- Masterbox
- vibration
- test of plug-in and unplug times of electrical plug-in
- Cooling unit
- connector connection strength
- temperature shock
- high temperature ageing
- UPS
- temperature shock
- high temperature ageing
- high temperature floating charge
- Masterbox
- System (Rack and Container)
- condensed water
- temperature shock
- IP level
- hygrothermal cycle
- salt spray
- high temperature charge/discharge
- 35°C
- 45°C
- 55°C
- low temperature charge/discharge
- 0°C
- -10°C
- -35°C
Thermal runaway propagation at installation level is the top tier of UL 9540A’s cell → module → unit → installation test sequence — see Pack Thermal Runaway and Pack Testing for the tiers that feed into it.