In Seoul, researchers at Kyunghee University have developed a biodegradable battery using coffee grounds.
Led by Jin Seong-hoon, a professor at KU’s Department of Information Display, the team found that using coffee grounds as a frame material around magnesium alloy and molybdenum trioxide electrodes created a stable battery that biodegrades within 60 days. Applications include environmental sensors and medical devices.
“We have confirmed the practical potential to convert coffee grounds that are easily discarded in daily life into energy storage devices for sustainable electronic goods,” said Seong-hoon.
The findings were detailed in a recent issue of Advanced Materials Technologies.