Abbott’s team at the Faraday Institution in the UK is investigating the robotic disassembly of Li batteries as part of the ReLib Project, which specialises in the recycling and reuse of Li batteries. The team has also found a way to achieve direct recycling of the anode and cathode using an ultrasonic probe, “like what the dentist uses to clean your teeth,” he explains. “It focuses ultrasound on a surface which creates tiny bubbles that implode and blast the coating off the surface.” This process avoids having to shred the battery parts, which can make recovering them exceedingly difficult.
According to Abbott’s team’s research, this ultrasonic recycling method can process 100 times more material over the same period than the more traditional hydrometallurgy method. He says it can also be done for less than half the cost of creating a new battery from virgin material.