Mr. Yufan Wang Profile

Yufan Wang

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Proceedings Article | 2 December 2022 Paper

Emerging in vivo power supply strategies for implantable electronics

Zhenyang Tao, Boda Wang, Yufan Wang

Proceedings Volume 12288, 122882A (2022) https://doi.org/10.1117/12.2641930

KEYWORDS: Lithium, Electrodes, Power supplies, Biofuels, In vivo imaging, Zinc, Metals, Capacitors, Ions, Electronics

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Energy storage in implantable electronic devices has become a popular area of research. The advances in this field improve the performance of implantable electrodes and the ability to integrate more functions inside such devices. Internal or external energy storage devices provide current implantable device power. This paper overviews two parts to the latest progress of in vivo energy storage devices and the self-powered implantable device. The energy storage devices in vivo include lithium batteries which have been widely used, highly biocompatible batteries that can reduce immune rejection in the human body, and the most emerging micro-supercapacitors. Four types of self-powered implantable devices are covered in this paper, including biofuel cells, biopotential devices, piezoelectric energy, and thermoelectric devices. Finally, the future prospect of this field is put forward. The current energy storage devices cannot fully achieve implantable devices with high biocompatibility long lifespan and are suitable for all organs simultaneously. However, the existing energy storage solutions can be selected according to different equipment needs and reasonably matched according to local conditions. The energy storage equipment can supply energy for implanted devices in the body safely, efficiently and with low risk as possible. This paper provides a reference for the selection of energy supply methods for implanted devices in the body in the future and provides directions for the research and development of new energy storage devices in the future.

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