What is the pollution caused by lithium ion batteries?

Are lithium-ion batteries really green? Lithium-ion battery: Green and environmentally friendly, no matter it is processed, used or scrapped, it does not contain or sprout any toxic and harmful heavy metal elements and substances such as lead, mercury, and cadmium. Others, such as batteries and fuel power batteries, generally contain heavy metal elements, such as mercury, lead, cadmium, etc.; these are heavy metal elements, which are very toxic and pollute water and soil. Lithium batteries are widely used in the electric vehicle industry, especially the emergence of lithium iron phosphate batteries, which has promoted the development and use of the lithium-ion battery industry. From the perspective of the development of new energy vehicles, lithium-ion batteries are more environmentally friendly, and the development of automotive fuels is accompanied by the development of energy. In the oil era, automobiles used gasoline and diesel as power fuels, which not only caused air pollution in cities, but also caused fuel prices to rise with the shortage of oil supply. Gas vehicles and biofuel vehicles appeared as alternative fuels. At present, the domestic recycling lithium-ion battery industry has just started, and the corresponding recycling rate is only 2%, which is indeed difficult to meet environmental protection standards. It is generally believed that lithium iron phosphate batteries are more suitable for cascading use, while ternary lithium-ion batteries are suitable for straight recycling. However, whether it is cascaded utilization or recycling, the power lithium battery recycling in the early stage of development still has problems such as immature business model, lack of sufficient and effective waste battery collection channels, battery disassembly/disassembly mismatch, and remaining life prediction difficult. . What pollution can be caused by lithium-ion battery processing? Lithium-ion battery production line processing, and whether it will cause (gas, water and soil) pollution during the process. At the current stage of lithium-ion battery processing, lithium-ion batteries will not be polluted by (toxic heavy metals). But regarding the environment, it is definitely harmful. Lithium-ion battery pole piece manufacturing process: In these processes, the domestic mainstream lithium iron phosphate system, or even the ternary system, does not have relatively large pollution. Of course, the ternary system may still have the same effect as lithium cobalt oxide. Certain pollutants, such as cobalt, manganese, and nickel, are all heavy metals, but they are relatively environmentally friendly. Among them, lithium iron phosphate batteries are the most environmentally friendly. The remaining part, in addition to the pollution of the materials mentioned above, the solvent in the injection is mainly cyclic/chain carbonate or carboxylic acid ester. The most important solute is lithium salt lithium hexafluorophosphate, and the most important additives are film-forming additives, flame retardant additives, conductive additives, and additives to improve low-temperature discharge. The pollution in the whole process is okay. Of course, chemical agents, if you don't pay attention to their control, will definitely pollute the environment. As for the final packaging and formation, the pollution is even smaller. Regarding lithium cobalt oxide and the ternary system, it is of course necessary to recycle it, after all, it contains heavy metals. However, lithium iron phosphate is basically harmless except for the internal electrolyte and so on. Compared with other batteries, it does not produce any toxic and harmful metal elements and substances such as lead, mercury, and cadmium, so the pollution is relatively small.