Energy Harvesting For Wearable Devices: A Review

Advances in healthcare wearable devices

“…Furthermore, one of the major limitations that hamper the utility of wearable devices, is a continuous power supply [131][132][133] . Batteries used in wearables have limited space as they are required to align with the design of wearables.…”

Grand Challenges in Wearable Electronics

“…-Battery technology and energy harvesting: Availability of power is the single, most important limiting factor in modern wearables. Developments in battery technology, electronic devices for efficient power conversion, and energy harvesting enable longer operation and richer functionality (Yang and Daoud, 2016;Dubal et al, 2018;Chong et al, 2019;Wang and Daoud, 2019a).…”

“…A wearable device should ideally sustain a lifetime operation without or minimal user interference. In terms of power, this implies operation on a battery, energy harvested from the body, or a combination thereof (Chong et al, 2019;Wang and Daoud, 2019b;Wu et al, 2019). This requires low-power operation both for analog and digital electronics of a wearable.…”

Unconventional Device and Material Approaches for Monolithic Biointegration of Implantable Sensors and Wearable Electronics

“…An alternative route to provide energy to soft biomedical devices is by self‐harvesting the required energy which involves converting mechanical energy generated from human body activities and motions into electrical energy. [ 153–157 ] The materials used for the fabrication of self‐energy harvesting devices should be carefully chosen by considering the mechanical/electrochemical stability, electrical conductivity, and processability of the materials to realize an integrated energy supply system on elastic substrates. Human activities result in mechanical deformations that involve complex modes; hence, stretchability of over 50% is required for the stable operation of a device.…”