A Body Conformal Ultrasound Receiver for Efficient and Stable Wireless Power Transfer in Deep Percutaneous Charging
Abstract
Abstract Wireless powering of rechargeable‐implantable medical devices presents a challenge in developing reliable wireless energy transfer systems that meet medical safety and standards. Ultrasound‐driven triboelectric nanogenerators (US‐TENG) are investigated for various medical applications, including noninvasive percutaneous wireless battery powering to reduce the need for multiple surgeries for battery replacement. However, these devices often suffer from inefficiency due to limited output performance and rigidity. To address this issue, a dielectric‐ferroelectric boosted US‐TENG (US‐TENG DF‐B ) capable of producing a high output charge with low‐intensity ultrasound and a long probe distance is developed, comparatively. The feasibility and output stability of this deformable and augmented device is confirmed under various bending conditions, making it suitable for use in the body's curved positions or with electronic implants. The device achieved an output of ≈26 V and ≈6.7 mW output for remote charging of a rechargeable battery at a 35 mm distance. These results demonstrate the effectiveness of the output‐augmented US‐TENG for deep short‐term wireless charging of implantable electronics with flexing conditions in curved devices such as future total artificial hearts.
Article Details
Authors (16)
Iman M. Imani
Department of Materials Science and Engineering Korea University Seoul 02841 Republic of Korea
Hyun Soo Kim
MinHyuk Lee
Neurovascular Unit Research Group, Korea Brain Research Institute
Seung‐Bum Kim
Electronic and Hybrid Materials Research Center Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
So‐Min Song
Electronic and Hybrid Materials Research Center Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
Dong‐Gyu Lee
Department of Materials Science and Engineering Korea University Seoul 02841 Republic of Korea
Joon‐Ha Hwang
School of Advanced Materials Science and Engineering Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea
Jeyeon Lee
In‐Yong Suh
Department of Materials Science and Engineering Center for Human‐oriented Triboelectric Energy Harvesting Yonsei University Seoul 03722 Republic of Korea
Sang‐Woo Kim
Department of Materials Science and Engineering Center for Human‐oriented Triboelectric Energy Harvesting Yonsei University Seoul Republic of Korea
Jun Chen
Heemin Kang
Department of Materials Science and Engineering Korea University Seoul South Korea
Donghee Son
Nanophotonics Research Center
Jeong Min Baik
School of Advanced Materials Science and Engineering Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea
Sunghoon Hur
Electronic and Hybrid Materials Research Center Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
Hyun‐Cheol Song
Department of Materials Science and Engineering Korea University Seoul 02841 Republic of Korea