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    • Fire protection curtains

      Fire protection curtains

      Fire protection curtains are seal openings in walls and ceilings in case of fire. The constructional set-up (rolling- or folding technology) and the use of different fabrics offer a wide application spectrum as well as different protection targets or classifications and time classes. Casings and side guides of those flexible applicable systems are integrated almost invisibly in the building and provide much scope for design of sophisticated architecture for opened designs.

    • Conveyor system closures

      Conveyor system closures

      Manifold production - and logisitc processes require different construction types of conveying systems. If the haulage drifts are passing through fire-retarding resp. fire-resisting walls or ceilings, the necessary openings must be provided with fire protection closures to avoid the expansion of the fire by conveyor technique or by conveyed material. In case of fire the conveyor system closures have to seal those openings immediately and automatically. Thereby a classified fire resistance as well as the smoothly clearing of the closing area must be respected in case of release.

    • Smoke curtains

      Smoke curtains

      A smoke curtain is part of unit keeping areas free from smoke and may include building parts like natural smoke and heat venting systems and automatic smoke and heat venting systems. Smoke curtains restrict the movement of fire gases inside a building in case of fire.

    • Smoke protection closures

      Smoke protection closures

      In closed condition smoke protection closures restrict the passage of smoke in the phase of fire formation so as to enable the rescue of people, animals or materials assets in case of a fire in the room positioned behind it without the need of breathing protection.

    • Tube sealings

      Tube sealings

      The solution to problems with fire protection dampers for ventilation and air conditioning systems in conveying processes. Stöbich offers fire protection for pneumatic conveying lines where the closing elements are not exposed to the flow. Thus, damage or contamination of the closure element is avoided by abrasive conveyed goods.

    • Controls


      Control systems are necessary for all automatic fire protection systems! They are safety-relevant, because without their function or in the event of a malfunction, the entire investment of a fire protection partition would be useless. Controllers coordinate both fire detection and the interaction with other controls, like superordinate building control or the retraction of the closing area at conveyor closing area.

    • Médiathèque Charles Nègre | Grasse, France

      Médiathèque Charles Nègre | Grasse, France

      The Médiathèque Charles Nègre in Grasse, France, is an impressive example of contemporary architecture that reflects the cultural and historical importance of the region. The information center with space for education, culture and encounters was opened in 2011 and designed by the renowned French architecture firm Marc Barani. The building combines modern aesthetics with the traditional architecture of Provence, creating a harmonious link between old and new, for example by combining modern materials such as glass and steel with local natural stone. The generous window fronts create an atmosphere flooded with light. Ecological sustainability is achieved through natural ventilation and the resulting reduction in energy consumption; green spaces are also integrated on various levels. Our <a href="/us/solutions/fire-protection-curtains/stoebich-fire-smoke-curtain-hc"><b>➥ horizontal Fire and smoke curtain hc</b></a> fire protection curtains fit perfectly into this marvel of contemporary architecture. They securely close the ceiling openings in the event of a fire, but otherwise remain invisible and let in plenty of light and air. Copyright attribution: © Ivry Serres

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Fire protection for electricity storage systems

Fire protection for electricity storage systems

Fire protection for electricity storage systems

Lithium-ion batteries, cells and rechargeable batteries power electric cars, e-bikes, e-cigarettes, smartphones and more. Compared to other battery technologies, these special energy storage devices have a particularly high energy density.

In principle, lithium-ion technology is safe, but under certain circumstances, the batteries can fail, i.e. explode. In such a case, violent reactions occur in the form of fires, during which toxic and corrosive harmful gases are emitted. The high temperatures can also be dangerous for people and property.

We would like to clarify the possible causes and present our safe transport and storage solutions for lithium-ion batteries from the product series StrainBox.

Even a single small button cell in residual waste can trigger a major fire, e.g. from a carelessly discarded music greeting card. As the ➥ FAZ reports, fires worth millions occur time and again in waste disposal companies. This is why it is so important to always dispose of batteries and rechargeable batteries properly.

Why do batteries fail?

Lithium-ion batteries can self-ignite under certain conditions. In this case, we speak of an accident or thermal runaway - the battery overheats and "thermally burns out". The reasons for this can come from outside (external) or from the battery itself (internal), through a self-reinforcing heat-producing process.

  • Mechanical damage

    E.g. after a fall with the e-bike, battery dropped, etc.

    Deformation of a cell or penetration of a foreign object into the cell can cause damage to the separator*, which in turn leads to an internal short circuit.

  • Thermal effect

    E.g. externally due to an environmental fire, solar radiation or failure of a cooling system.

    Internally, so-called thermal propagation (= spreading) can occur from cell to cell - a dangerous chain reaction.

  • Chemical ageing

    Accelerated in particular by deep discharges.

    The metallic lithium is unevenly distributed in old cells; crystals grow at certain points. These so-called dendrites can penetrate the separator and lead to an internal short circuit.

  • Electrical impact

    E.g. due to overcharging (internal) or short-circuiting (external).

    In the case of overcharging, the electrical energy can no longer be converted into chemical energy at some point. A short circuit results in a high current flow. Both lead to the cell heating up.

    * The separator is the inner separating layer between the anode and cathode, which is intended to prevent uncontrolled charge exchange.

    What happens during a thermal runaway?

    It can happen that quickly: A battery ignites within a few seconds. We regularly carry out fire tests with lithium-ion batteries under real conditions in the test centre at the STÖBICH North site. In the short video you can see the four different stages of a classic battery fire.

    • The cell heats up and pressure is built up.

    • Electrolytes escape in the form of toxic noxious gases.

    • Sparks and flames escape.

    • The harmful gases ignite.

      Tested in the test centre

      As part of our product development, we regularly check the safe function of our storage and transport boxes. We also support customers in planning, carrying out, documenting and analysing their own tests. The tests take place in our in-house battery test centre, where products for the safe handling of lithium-ion batteries are tested in addition to battery tests.

      ADR: Legal regulation for battery transport

      Our transport boxes must be ADR-compliant, i.e. approved for the safe transport of dangerous goods by road: in accordance with the Agreement concerning the International Carriage of Dangerous Goods by Road (ADR).

      Burning electric cars are a regular topic in the media. There is often talk of a "technical defect" as a possible cause of the fire, such as the ➥ fire in an electric post office vehicle in Pirmasens.. Whether it is a battery fire can usually only be clarified later in the course of the investigation. Due to the potential danger described above, a connection between the energy storage system and the fire is relatively likely.

      What to do with the damaged battery?

      Even after a battery fire has been extinguished, the danger is far from over: What to do with the contaminated extinguishing water and the defective energy storage unit itself? The legal situation is not clear, and fire brigades are not officially responsible for the transport and disposal of damaged batteries. Nevertheless, the fire service can keep battery safety systems on hand for use - which makes sense given the increasing number of fires involving modern battery technologies.
      We at STÖBICH have handed over several StrainBoxes to the Goslar fire service. For space reasons, we store the largest StrainBox XL transport box on our factory premises. If required, the emergency services of all fire brigades in the district of Goslar can transport the box to the scene of the emergency using the "Logistics" equipment vehicle (GW-L).

      Demonstration on the premises of the fire brigade technical centre in Goslar: The StrainBox XL is prepared for transport by the fire brigade in an exercise. © Uwe Fricke
      These ➥ CirruX packaging bags are prescribed for the ADR-compliant transport of lithium-ion batteries. © Uwe Fricke

      In BRANDSchutz/Deutsche Feuerwehr Zeitung (issue 09/2022, p. 812 ff.), District Fire Chief Uwe Fricke explains the key advantages of these special transport boxes for firefighting operations: they are available in various sizes from XS for e-bike batteries to XL for photovoltaic storage units, and they are designed for dry transport. This means that the battery does not have to be extinguished (keyword "contaminated extinguishing water"), but can burn out in the box.

      Safe transport solutions for energy storage systems

      All boxes in the StrainBox series have an integrated filter system that filters out a large proportion of the toxic gases. Harmful dust and particles are retained and the escape of solids, liquids and flames is prevented. Thanks to the integrated thermal management system, there is no critical temperature increase in the outer walls. Should the batteries inside break down, contamination in the area surrounding the box is prevented.


      Gas filter systemMechanical resistance
      No leakage of sparks and flamesAlso for critical and defective lithium-ion batteriesbatteries
      Pressure-resistant constructionTested overall concept
      No leakage of liquids and solidsSafe and durable locking mechanism

      Click here for the innovative ➥ Battery safety solutions from STÖBICH.