Medical implants often require battery power
Sebastian Kauritzky/Science Photo Library
Batteries designed to operate using oxygen from the body can last months to years before needing to be recharged or replaced, and could one day power everything from pacemakers to brain implants. The day may come when we can provide electricity.
Liu Xizheng Researchers from China’s Tianjin University of Technology have made a battery from a sodium-based alloy and porous gold, taking advantage of the fact that sodium reacts with oxygen to produce electricity. This means that these batteries can be implanted inside the body and misused…
Source: www.newscientist.com
