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Analysis of Black Powder Quality in Waste Ternary Battery Recycling Line: Purity of 95%+
Time:2025-11-03
Introduction
In the recycling process of waste ternary batteries, black powder is a key intermediate for enriching high-value metals such as lithium, nickel, cobalt, manganese, etc. Its quality directly determines the recovery efficiency and economic benefits of subsequent wet smelting.
Our specialized recycling line can stably produce high-purity and precisely controllable black powder. The product characteristics of each discharge outlet are clear and stable, ensuring compliance with the national standard for recycled black powder, providing reliable raw material guarantee and excellent value loop for downstream metal extraction enterprises.
Production Line Process Overview:
Our dedicated recycling line for spent ternary batteries integrates a synergistic process encompassing pyrolysis, crushing, sorting, purification, and dust collection. This ensures the highly efficient separation and recovery of black powder.
Based on the industry standard that the cathode and anode black powder accounts for approximately 55% of the total battery weight, the line is strategically designed with four primary discharge outlets. Each outlet corresponds to black powder from different process stages, with variations in yield, quality characteristics, and intended application. This targeted approach allows us to meet the specific and diverse needs of our clients.
Detailed explanation of the characteristics of black powder at the four major discharge ports
1. No.1 discharge outlet: the main core product, with excellent output and quality
As the first sorting material after pyrolysis, the black powder from the first discharge port accounts for over 35% of the total weight of the feeding battery. Calculated based on the positive and negative electrode black powder accounting for 55% of the battery, the output accounts for about 65% of the total black powder, making it the main force of the production line.
The black powder at the discharge outlet has three major advantages: stable output and the ability to meet large-scale production; Excellent quality, uniform state, low impurities; The composition is stable, and the proportion of main metal elements meets the downstream extraction needs, making it a highly cost-effective core raw material.
As the first sorting material after pyrolysis, the black powder from the first discharge port accounts for over 35% of the total weight of the feeding battery. Calculated based on the positive and negative electrode black powder accounting for 55% of the battery, the output accounts for about 65% of the total black powder, making it the main force of the production line.
The black powder at the discharge outlet has three major advantages: stable output and the ability to meet large-scale production; Excellent quality, uniform state, low impurities; The composition is stable, and the proportion of main metal elements meets the downstream extraction needs, making it a highly cost-effective core raw material.
2. Second discharge outlet: After impurity removal, the copper and aluminum content is slightly higher, and the purity of the core metal is good
The black powder at the second discharge outlet undergoes processes such as iron removal, shell removal, and electrode foil peeling to complete the separation of basic impurities. However, due to residual electrode foil, the copper and aluminum content is relatively high.
However, its core valuable metals (lithium, nickel, cobalt, manganese) have high purity and can be purified through targeted impurity removal, making it suitable for enterprises with high tolerance to copper and aluminum or secondary impurity removal capabilities.
The black powder at the second discharge outlet undergoes processes such as iron removal, shell removal, and electrode foil peeling to complete the separation of basic impurities. However, due to residual electrode foil, the copper and aluminum content is relatively high.
However, its core valuable metals (lithium, nickel, cobalt, manganese) have high purity and can be purified through targeted impurity removal, making it suitable for enterprises with high tolerance to copper and aluminum or secondary impurity removal capabilities.
3. No.3 discharge outlet: obtained from flue gas dust removal, attention should be paid to water-soluble fluorine
The black powder at the third discharge outlet comes from the high-temperature flue gas dust removal system in the crushing, conveying, and pyrolysis process sections. Due to the influence of high temperature, the water-soluble fluorine content is prominent.
The subsequent treatment of such black powder should focus on the removal of fluorine elements, which is suitable for recycling enterprises with mature fluorine treatment processes. Through process adjustment, valuable metals can be efficiently recovered.
The black powder at the third discharge outlet comes from the high-temperature flue gas dust removal system in the crushing, conveying, and pyrolysis process sections. Due to the influence of high temperature, the water-soluble fluorine content is prominent.
The subsequent treatment of such black powder should focus on the removal of fluorine elements, which is suitable for recycling enterprises with mature fluorine treatment processes. Through process adjustment, valuable metals can be efficiently recovered.
4. No.4 discharge outlet: Low temperature dust collection with high organic content
The black powder at the fourth discharge outlet comes from the low-temperature dust collection system in the feeding, buffering, and sorting process sections. Due to the low process temperature, the residual organic matter in the battery has not been completely decomposed, resulting in a high organic matter content.
This black powder can remove organic matter through secondary pyrolysis without affecting subsequent metal extraction, making it suitable for enterprises that can support pre-treatment processes.
The black powder at the fourth discharge outlet comes from the low-temperature dust collection system in the feeding, buffering, and sorting process sections. Due to the low process temperature, the residual organic matter in the battery has not been completely decomposed, resulting in a high organic matter content.
This black powder can remove organic matter through secondary pyrolysis without affecting subsequent metal extraction, making it suitable for enterprises that can support pre-treatment processes.
Core advantages of production line
Our waste ternary battery recycling production line achieves efficient recycling and quality control of black powder through precise process design and sorting of materials. Whether it is the first main black powder, which accounts for 65% of the production, or other export products with clear characteristics, they all have the characteristics of high purity and transparent composition.
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