With the miniaturization of electronic products such as mobile phones and computers, the application of lithium-ion batteries is becoming more and more extensive. In addition, ordinary lithium-ion batteries can also be used as power lithium batteries for automobiles. At present, China has become a major country in battery production and consumption in the world, and the annual consumption of batteries has reached 8 billion. Waste batteries are generally disposed of together with household waste through landfill, incineration, composting, etc., and the recycling work is large in scale and time-sensitive. New energy battery companies talk about the importance of lithium-ion battery recycling.
If the waste lithium-ion battery is not systematically treated and recycled, it will seriously waste resources, pollute the environment and endanger human health.
If the waste lithium-ion battery is not treated, a large amount of heavy metals will appear, resulting in heavy metal pollution, and the electrolyte will pollute the soil and water. Generally speaking, the proportions of cobalt, lithium and nickel contained in waste lithium-ion batteries are 5%-15%, 2%-7% and 0.5%-2%, respectively. It also contains copper, aluminum, iron and other metallic elements. The data shows that if the waste lithium-ion batteries can be completely recycled, 240 tons of cobalt can be recycled every year.
Since 2010, China's lithium-ion battery market has grown in size. The increasing production of cathode materials for lithium-ion batteries also means that there is more and more waste in lithium-ion batteries.
