SLG testing services for batteries, cells and energy storage systems

Lithium-ion batteries are exposed to various climatic and mechanic stresses during transport. Therefore, every lithium-ion energy storage system must comply with the UN recommendations on  the transport of dangerous goods, Section 38.3. Proof of this is provided by specific testing methods simulating practical situations.

• Low pressure, simulation of altitude → air transport at 15,000 m altitude
• Temperature cycling → take-off and landing of an aircraft
• Vibration   →   Vibrations during transport by truck or railway
• Shock   →   Fall from a great height
• External short circuit   →   Short circuit of poles due to inadequate packing
• Impact   →   Damage, crushing during transport by forklift
• Abnormal charging   →   Check of internal safety systems
• Forced discharge   →   "Gradual" short circuit of poles

During the safety test of lithium-ion batteries different situations which may occur in practice are simulated, such as:

• Incorrect fitting of a cell
• Over-charging
• Mechanical shock and vibrations
• Thermal abuse
• Total discharge

We perform the following tests for primary lithium batteries:

• Test A: Altitude
• Test B: Thermal cycling
• Test C: Vibration
• Test D: Shock
• Test E: External short-circuit
• Test F: Impact
• Test G: Crush
• Test H: Forced discharge
• Test I: Abnormal charging
• Test J: Free fall
• Test K: Thermal abuse
• Test L: Incorrect installation
• Test M: Overdischarge

We carry out fit-for-use and endurance tests for energy storage systems.

• Charging process at different temperatures and currents
• Discharging process at different temperatures and currents
• Capacity measurement using various surrounding conditions and at different charging and discharging times
• Capacity checks simulating practical situations
• Cycle stability, endurance
• Integration of charger and energy storage system
• Handling and usability