1. The demand for power lithium batteries continues to grow

　　The reason why low-speed electric vehicles use lead-acid batteries as power is largely due to the current cost advantage of lead-acid batteries, and lead-acid batteries are relatively mature in development, with stable performance and good safety.

　　Nevertheless, the enormous environmental pollution risks associated with lead-acid batteries and the continuous development of lithium battery technology, coupled with the advantages of lithium batteries in capacity and service life, will make lithium batteries a trend in the development of low-speed electric vehicles as power sources. It can be foreseen that in the future, repair shops will receive more and more discarded lithium batteries.

　　2. Waste lithium batteries have strong recycling value

　　The positive electrode, negative electrode, separator, electrolyte and other materials that make up lithium-ion batteries contain a large amount of valuable metals. The valuable metal composition in positive electrode materials of different power lithium batteries varies, among which metals with high potential value include cobalt, lithium, nickel, etc. For example, the average content of lithium in ternary batteries is 1.9%, nickel 12.1%, and cobalt 2.3%; In addition, the proportion of copper, aluminum, and other components has also reached 13.3% and 12.7%, both of which have very high recycling value. Currently, some companies have started to recycle lithium batteries for a fee.

　　3. Improper disposal of waste lithium batteries will threaten the environment and health

　　Although lithium batteries do not contain toxic heavy metal elements such as mercury, cadmium, and lead, they can also cause environmental pollution. For example, once the electrode material enters the environment, the metal ions in the positive electrode of the battery, carbon dust in the negative electrode, strong alkalis and heavy metal ions in the electrolyte may cause heavy environmental pollution, including increasing the pH value of the soil. Improper treatment may produce toxic gases.

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