Lithium batteries are generally divided into lithium metal batteries and lithium ion batteries. Lithium ion battery is widely used because of its high energy density. The safety of lithium ion batteries is the bottleneck of the development of lithium ion batteries and related industries (such as new energy vehicles). The internal electrolyte of lithium ion battery is a flammable liquid, the electrode is combustible materials, lithium batteries in overcharge, short circuit, overheat, puncture or collision under the condition of thermal runaway, easy to fire or explosion, mobile phone, electric bicycle or electric car batteries for fire fire cases have occurred.
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