Currently LIB recycling in the EU is mainly done via pyrometallurgical recovery. This involves heating the LIBs to high temperatures to allow the recovery of an alloy of the higher value metals, such as Ni, Co, Cu. This is often followed by hydrometallurgical steps to separate the different metals from this alloy. Pyrometallurgical recovery is widely used as it can deal with the whole battery at once without the need to separate the different battery components. Furthermore, it can be used regardless of battery chemistry and removes the need for a discharging step. However, the pyrometallurgical process is energy intensive and loses some of the materials value within the battery, the synthesis of battery materials is a costly process, and so breaking them down completely into the individual elements loses some inherent value. An alternative is direct hydrometallurgical recovery which involves using aqueous solutions to leach the elements into acidic solution. Commonly H2SO4 is used along with H2O2 which acts as a reducing agent. Hydrometallurgical recovery can recover multiple metals and can be performed on a range of different cathode materials.