27 culture. We are aware of the major risk associated with storing these batteries and supercapacitors over a long period of time. Because of this, we purchased a specialised cabinet as soon as possible. By storing our equipment in an asecos cabinet, we are ensuring the safety of our employees and our devices”. The biggest danger: Thermal runaway What makes batteries so dangerous are the chemical properties of their components. The electrolytic fluid inside the batteries consists of organic solvents and is therefore flammable – roughly as flammable as petrol. This factor, combined with their high energy density, makes batteries a significant fire hazard. If the temperature increases in even one cell of a battery, all neighbouring cells will heat up in a cascade. If the temperature reaches a limit range, beginning at around 60 °C, depending on the solvent, and becoming extremely critical above 100 °C, a chain reaction will occur that becomes more and more difficult to control. Within a fraction of a second, the temperature will increase up to 800 °C, the gases produced will escape the shell of the battery cell, and the battery will burn in an explosive manner. This kind of situation is unpredictable. Flames will be produced, and flammable battery material will be ejected through the air like fireworks. This endangers personnel and can trigger even more fires. A fire can spread quickly, in particular if it jumps to neighbouring batteries in a kind of domino effect. Double protection This is why proper battery storage is so important. All ION-LINE models from asecos have been developed and tested in accordance with standard EN 14470-1. Because of this, lithium-ion batteries stored in these safety storage cabinets are protected against overheating for a period of 90 minutes whether a fire develops inside or outside the cabinet. Standard EN 1363-1 governs protection of the cabinet from the inside to the outside, determining the fire resistance duration of components that could be exposed to a fire under standardised conditions. ION-LINE models from asecos have been tested and verified to handle such situations, and also offer a fire resistance capability of 90 minutes from inside to outside. If a battery inside the cabinet ignites and triggers a fire, it will remain safely inside the cabinet. Arantxa reports: “We needed a cabinet that would guarantee the necessary safety if a reaction occurs inside one of our devices. Asecos’ cabinet is made of fire-resistant materials that can withstand fire for 90 minutes if one does occur. This is enough time to act in dangerous situations. We are also very satisfied with asecos’ service. We received the cabinet in very good condition, and installation was very easy thanks to the manual”. “We needed a cabinet that would guarantee the necessary safety if a reaction occurs inside one of our devices”. Project summary Company: PHI 4 TECHNOLOGY SL Location: Noblejas, Spain Industry: Battery cell technology Application: Research and development Energy storage devices
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