Lithium-ion batteries are considered powerful, but they carry a significant fire risk. To increase safety in storage and charging, Cemo has introduced new fire- and explosion-resistant storage cabinets. The models in the range „lockEX meet the testing standard valid since 2024 with practical battery-fire tests and are intended to provide improved protection against overpressure and flame release through patented pressure relief.

The new generation of lockEX battery charging and storage cabinets with a pressure-relief door | Photo: Cemo
The new generation of lockEX battery charging and storage cabinets with a pressure-relief door | Photo: Cemo
2025-10-30

Lithium-ion batteries are now used in numerous mobile devices. Their high energy density and low weight make them especially powerful, but they also carry an increased risk. In the case of mechanical damage, overcharging, or improper storage, the batteries can overheat significantly and, in the extreme case, ignite.

The company Cemo aims to minimize these risks and, therefore, offers special charging and storage cabinets for lithium-ion batteries. These cabinets are designed to be fire- and explosion-protected and

have been tested according to the testing standard applicable since 2024. The new standard requires practical battery-fire tests inside the cabinets and thus replaces previous tests that only considered external fire loads.

The current models of the lockEX series – Basic, Premium and Premium Plus – feature a patented pressure relief that, in the event of a battery explosion, retains burning components and the gases generated inside. This is intended to vent the overpressure in a controlled

manner and protect the surroundings.

Variants and Equipment

The battery cabinets are available in several sizes and configurations and can be tailored to the application. All models meet the new testing standards.

Features:

  • Optionally mobile with casters or stationary with feet
  • Connections for 230 V (single-phase) or 400 V (three-phase)
  • Modular, stackable – double- or triple-stacked, depending on the model
  • Rugged construction for safe storage and charging

Available sizes (W × D × H):

  • 80 × 66
  • × 52 cm
  • 80 × 66 × 115 cm
  • 80 × 66 × 160 cm
  • 80 × 66 × 213 cm
  • 95 × 66 × 115 cm

Lagerkapazitäten:

  • Models 8/5: for batteries up to 3 kWh energy capacity
  • Models 8/10: for batteries up to 6 kWh energy capacity

Thus, depending on size, it is possible to securely store about 30 to 60 tool batteries or up to 30 larger batteries, for example from power tools or e-bikes.