Batteries

Recycling spent batteries and accumulators is not an easy task. If they end up in the wrong shredder, this can lead to dangerous fires. The innovative process from BHS-Sonthofen deliberately avoids this danger. After the batteries have been discharged, they are shredded under a protective atmosphere using either one or two shredding machines. The BHS rotary shear of type VR handles the pre-shredding process. This slow-speed twin-shaft crusher crushes bulky battery packs and modules reliably with its interlocking blades. The cells or pre-crushed fraction is brought to the target size in a single-shaft crusher, such as the universal shredder of type NGU, during the main crushing step.

Once the feed material has reached the desired target size, the parts fall through appropriately designed grid segments in the universal shredder (NGU). The crushed batteries are then heated in batches in horizontal batch or continuous dryers of type AVA HTC-T and AVA HTK-T to evaporate the electrolyte components for subsequent recovery in a condensation unit. Dry mechanical processing is used to render the solid components completely free of electrolytes. Black mass can be recovered as soon as initial screening has been performed. Light and heavy materials are then sifted and separated. The remaining composites are sent for a second phase of shredding and are then fed into a dry mechanical sorting system. The black mass, smelter-grade copper concentrate and concentrated aluminum are recovered as end products.

Our shredding machines are available in different sizes to meet your individual requirements. Our systems allow you to process any type of cell and module. The end products are aluminum, high-grade copper concentrates and pure black mass, which contains lithium salts, manganese, cobalt or nickel depending on the type of battery. All three fractions are immediately ready for remarketing.