| 英文摘要 |
The goal of this project is to evaluate and establish the waste lithium batteries recycling technology, and to calculate the waste lithium battery and flow indicator and estimate the possible waste lithium battery waste to reach 883 tons/year in 2025. The replacement of processing costs that may be required for waste lithium battery treatment. According to the comparison of advantages and disadvantages of foreign advanced countries, as a basis for assisting industrial technology upgrades, and further, through the operation of the project, investigate The current status of waste lithium battery recycling and processing.
At present, Taiwan's waste lithium battery is large. Some of them have not been processed. After obtaining the initial physical smash of the waste battery, the processing company will receive compensation from the EPA Foundation Management Committee, and then sell it to foreign manufacturers at low price in foreign countries, the high value of material cannot be left in Taiwan, and technology cannot be improved. According to the analysis results, the reclaimed materials of the treatment plant have not reached the acceptance specifications of the downstream manufacturers that can only replace the low-grade materials. The quality of recycled materials in domestic treatment plants will be upgraded in three stages and the value of recycled materials in domestic waste secondary lithium battery processing industry can reach high- grade product application materials, solve the problem of impurities and confounding of recycled materials, and gradually increase value of waste lithium batteries. The value of recycled materials in the lithium battery processing industry can reach high-order product application materials.
The first stage of improving the quality of recycled materials is implemented. Large particles of impurities such as iron, copper, aluminum and other impurities are removed and separated through the screens of different meshes of the physical sorting mechanism, which can effectively reduce the content of impurities so that the cobalt content is reduced from 13wt% to 23 wt%. In addition, in order to achieve the high value of the recycled materials, the recycled materials are made into chemical raw materials such as cobalt sulfate and cobalt oxide by using acid-base solution and precipitation reaction to increase the high value of the recycled materials.
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