Lithium-ion Cabinets

It’s easy to think of batteries as harmless until something goes wrong. Yet inside, lithium cells hold a surprising amount of energy. When that energy is suddenly released through a knock, a fault, or too much heat, the outcome isn’t pretty. Engineers call it thermal runaway, a chain reaction where heat feeds heat, sometimes ending in fire or explosion.

Now picture not one or two, but an entire shelf of batteries stacked side by side. The danger multiplies. One failing cell can trigger the rest, and suddenly you’re not just looking at a damaged battery, you’re dealing with a facility-wide safety threat. It’s no wonder insurers, regulators, and workplace safety experts are unanimous: dedicated lithium-ion battery storage isn’t optional. It’s essential. A well-tested cabinet or even a larger lithium battery storage container does more than satisfy compliance paperwork. It buys you time. It protects people. And it can stop a minor fault from spiralling into something far worse.

Lithium-ion batteries power tools, equipment, and even full-scale operations. But convenience comes with risk. Without proper lithium battery storage, defective or damaged cells can overheat, ignite, or release toxic gases. Insurers and safety bodies, including the Association of Non-Life Insurers (VdS), recommend separating these batteries in dedicated, fire-protected areas.

That’s where DENIOS comes in. Our new generation of lithium battery storage cabinets offer double-sided fire resistance, 90 minutes of certified protection, and specialist features for both storage and charging. Indoors or outdoors, you get peace of mind with proven engineering on your side.

Imagine a fire breaks out in your building. If lithium batteries are stored in a regular cupboard, the fire brigade may have only minutes to react. In a DENIOS cabinet, firefighters gain at least 90 additional minutes to evacuate and contain the blaze. That’s thanks to Type 90 classification, tested to EN 14470-1 for fire resistance from the outside in.

And if the fire starts inside the cabinet itself? Our cabinets hold their integrity for 90 minutes from the inside out, confirmed by tests to EN 1363-1. SafeStore Pro and SmartStore go even further, with an aerosol-based suppression system that automatically activates, giving you precious time to act.

SafeStore is built for businesses that want reliable lithium ion battery storage without overcomplication. Based on our trusted hazardous substance cabinet technology, it delivers double-sided fire protection to satisfy even the strictest insurer requirements.

Choose from two sizes with three to six storage levels. Heavy-duty, height-adjustable shelves (180 kg capacity each) give flexibility, while a liquid-tight steel spill tray collects sparks or debris from compromised cells. In short, it’s a cabinet designed to keep your workplace safe and compliant.

If you want more than containment, SafeStore Pro adds intelligence to your lithium battery storage solution. Alongside double-sided fire protection, it features integrated surveillance and a 3-stage warning and suppression system.

Sensors detect smoke or rising temperatures early and can link to your building’s control systems. Trained staff are alerted immediately, and if the interior hits 70 °C, suppression is triggered automatically. The result is a monitored, proactive approach to storage safety.

SmartStore: Safe Charging

Charging batteries creates additional risk, since heat builds during the process. Our engineers developed SmartStore specifically for safe lithium battery storage and charging.

Each cabinet combines robust fire protection with built-in suppression, continuous monitoring, and technical ventilation to stop heat build-up. Every level has its own charging station, so convenience doesn’t compromise safety. And if smoke or heat is detected, the 3-stage warning system responds instantly.