>
>
>
>
>
>
>
>
>
>
>
2021-11-16
The recycling and reuse of lithium batteries for electric bicycles effectively saves resources and solves the pollution caused. The recycling technologies are mainly divided into the following types
The recycling and reuse of lithium batteries for electric bicycles effectively saves resources and solves the pollution caused. The recycling technologies are mainly divided into the following types:
1. Wet recovery, mainly using chemical reactions:
1. The electric bicycle lithium battery is divided into carbon and alkaline batteries and then crushed. The crushed material can be placed in a leaching tank, and 100-120g/L dilute sulfuric acid is added for leaching to obtain a zinc sulfate solution, and then metal zinc is obtained by electrolysis. .
2. After separating the copper grease and the carbon rod, the remaining manganese dioxide residue and manganese are calcined to obtain manganese dioxide.
Second, manual sorting method. After the dry batteries are classified into carbon batteries and alkaline batteries, they are mechanically dissected, and then the zinc skin, manganese dioxide (requiring further mercury removal), carbon rods, plastic covers, etc. are separated by manual methods. This is focused on the full cycle One way to use.
3. Fire recovery. After the dry battery is sorted and broken, it is sent to a high-temperature furnace. Zinc and zinc chloride are oxidized into zinc oxide and discharged with smoke. The powder is recovered by a cyclone and then further synthesized into zinc oxide products; the remaining manganese dioxide and manganese stone Into the residue, depending on the economic value, it can be determined whether to recycle manganese powder. This method mainly focuses on the recovery of zinc.
The recycling technology of lithium batteries for electric bicycles is becoming more and more refined. After recycling, a variety of metals can be obtained for reprocessing, which is energy-saving and environmentally friendly.