High-capacity batteries can be discharged to reduce the risk of fire or the release of toxic fumes during processing. For this reason, professional separation and recycling generally requires specialized tools, processes and controls.įinally, due to high temperature exothermic reaction, several fire incidents can be attributed to lithium-ion batteries. The second reason: during the dismantling process, it can be very easy to damage the battery. First, in many cases it can be difficult to remove these batteries from devices because they are bonded to the hardware. There are three main reasons why processing li-ion batteries can be challenging. Why is processing lithium-ion batteries as e-waste challenging? Especially if large numbers of batteries are collected, where just one lithium-ion battery might ignite. In this way, a discarded battery could ignite other flammable material adjacent to it. The larger the battery, the stronger the thermal reaction. However, if a device is crushed or punctured, a thermal event can result, as batteries short-circuit when the separator between their positive and negative components are breached. Li-ion batteries contain a thin sheet of polypropylene that separates electrodes and prevents short-circuiting. This is why airlines cannot allow spare lithium metal batteries and lithium-ion batteries in checked baggage. Influences such as high temperatures, too high charging voltage, short circuit, or even too much of a heavy strain can cause exothermic reaction – a chemical reaction that releases energy through light or heat – in the battery. Lithium is highly reactive and difficult to control. Improper disposal has significant consequences, such as environmental pollution and loss of (material) resources. Lithium-ion (li-ion) batteries contain a variety of chemicals. Why can’t li-ion batteries be disposed of with normal chemical/industrial waste?
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