-What are the recycling methods for waste lithium batteries?

What are the recycling methods for waste lithium batteries?
author:enerbyte source:本站 click124 Release date: 2023-12-27 08:36:30
abstract:
Generally speaking, the recycling of discarded lithium-ion batteries is a combination of physical and chemical methods. Physical methods include mechanical separation, heat treatment, mechanochemistry, and dissolution processes; In chemical methods, due to the advantages of low energy consumption, m...

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Generally speaking, the recycling of discarded lithium-ion batteries is a combination of physical and chemical methods. Physical methods include mechanical separation, heat treatment, mechanochemistry, and dissolution processes; In chemical methods, due to the advantages of low energy consumption, minimal wastewater, and high purity metal recovery rate, researchers mostly prefer to use wet metallurgy to recover waste LIB, including acid/alkali/biological filtration, chemical precipitation, solvent extraction, and electrochemical processes.

1. Dismantling and recycling are currently the most important methods, generally including wet recycling, dry recycling, biological recycling, etc. Wet recycling is the most commonly used and commercialized among them. The improvement of lithium-ion battery raw materials and the recycling of waste batteries to obtain reusable materials are the most important ways for manufacturers to reduce costs.

2. Cascade utilization refers to the use of high-performance lithium-ion batteries as energy storage batteries. However, the cost of recycling high-performance lithium-ion batteries is higher than that of ordinary batteries, and it requires high consistency of the batteries. This method is currently in trial operation and is not perfect.

3. The lithium-ion battery recycling equipment mainly adopts physical recycling methods, supplemented by three waste disposal measures, and has the characteristics of green and low-carbon, energy conservation and environmental protection, and no secondary pollution. The entire recycling process has achieved industrial automation, with high recycling efficiency and strong processing capacity. The lithium-ion battery separation and recycling equipment has a recycling rate of over 99% for valuable components of waste lithium-ion batteries.

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