4 Lithium-ion batteries can cause a fire. Causes include: Mechanical damage Deep discharge Thermal overload Electrical overload In combination with the high energy density of the battery Unstable cell Caused by external heat or energy sources During charging and discharging MAX. PERMITTED TEMPERATURE ELECTROLYTE BEGINS TO VAPORIZE SHUT DOWN separator melts, impermeable to lithium-ions SEPARATOR MELTS internal short circuit EXOTHERMIC REACTION THERMAL RUNAWAY unavoidable temperature increase to over 600 °C Energy release Lithium-ion batteries IMPROVED SAFETY THROUGH FIRE PROTECTION – CHARGING AND STORING BATTERIES CORRECTLY Always store and charge lithium-ion batteries in a safety storage cabinet. Handle batteries properly and appropriately to reduce hazards such as the risk of fire. Lithium-ion batteries offer many advantages. They are long-lasting, offer high energy density, have a low level of self-discharge, and can be used in a wide range of different applications. Using lithium-ion batteries is safe. However, according to the VDE they are safe only when handled properly. Technical defects or improper handling can cause a fire. If a lithium-ion battery discharges its energy in an uncontrolled manner, the heat released may exceed the melting point of the lithium. This will result in a chain reaction. Professionals call this “thermal runaway”. The battery can explode as it burns. Because of this, it is important to understand and comply with the safety regulations for moderate performance batteries. It is best to store and charge lithium-ion batteries in an asecos safety storage cabinet.
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