Medical implants typically require battery energy
Sebastian Kaulitzki/Science Photo Library
Batteries designed to run on oxygen from inside the physique may final months or years earlier than needing to be recharged or changed, and would possibly in the future energy every part from pacemakers to mind implants.
Xizheng Liu at Tianjin University of Technology in China and his colleagues made their batteries from a sodium-based alloy and a porous type of gold, making the most of the undeniable fact that sodium reacts with oxygen to create electrical energy. That means these batteries will be implanted in the physique and exploit…