Research advances on a powering approach aimed toward electric nodes around the body region

Abstract

Wearable implantable electronic devices (WIEDs) play an important role in data interaction and information collection, which provides new ideas for the development of consumer electronics, medicine, industry, and agriculture. However, battery endurance has become one of the bottlenecks impeding the development of WIEDs. Therefore, finding effective ways to address this issue has become a hot research topic in WIEDs. This article summarizes the research progress in the field of in-situ power supply technologies for WIEDs, including self-powered technologies and wireless power transmission techniques. Self-powered technologies can collect energy from the human body and the natural environment, such as biochemical energy, mechanical energy, and solar energy. Moreover, the types of wireless power transmission depend on different energy carriers, such as electromagnetic waves and mechanical waves. We compare the advantages and the application scenarios of various solutions, discuss the current challenges of different technologies, and finally provide possible future development trends. We hope that this paper will be helpful in designing innovative WIEDs with high battery endurance.