Waste Power Lithium Battery Recycling System

A complete recycling line for spent power lithium batteries covering discharging, shredding, crushing, magnetic separation, drying, screening and dual-path gas purification. Black mass purity reaches 99%, copper and aluminium 96% or above, and separator paper recovery 98% or above, with negative-pressure operation controlling dust and exhaust gas throughout.

Process Overview

The waste lithium battery recycling process consists of discharging, shredding, crushing, magnetic separation, drying, screening and a dual-path gas purification system. After discharging, batteries are fed by an intelligent stepped feeder into a twin-shaft shredder, where two counter-rotating shafts compress and tear the material before it passes to a ring hammer crusher. The crushed material is conveyed under negative pressure to a belt conveyor and through a magnetic separator for iron removal, then dried in a G3 drying screen before entering the mill for grinding. A sorting system then performs the final separation, yielding black mass, copper and aluminium powder, iron and separator paper. Black mass purity reaches 99%, copper and aluminium purity is 96% or above, and separator paper recovery is 98% or above. The entire process operates under negative pressure, which effectively prevents dust and exhaust gas from escaping, and organic exhaust gas is treated by the dual-path purification system to meet discharge standards.

Process Flow

Process Features

The recovery process is safe and reliable, with low investment cost, a clean and compact appearance, a small footprint and low equipment maintenance costs.
Solid-state discharging combined with intelligent cube discharging shortens discharge time to two or three hours.
Separation is effective and recovery rates are high: black mass purity reaches 99%, copper and aluminium purity is 95% or above, and separator paper recovery is 98% or above.
A dual exhaust gas treatment system makes the line environmentally friendly with zero pollutant discharge. Noise, dust and organic exhaust gas are all well controlled, essentially meeting a zero-emission standard.
An industry-first drying method keeps operating costs and power consumption low.
The process handles a wide range of material — batteries of any model can be sorted.
A high-end intelligent control system allows unattended operation, substantially reducing labour costs.
The new crushing system offers high throughput and can be customised to customer requirements.
The process is highly extensible and flexible, meeting varying customer requirements.