A Ceramic‐Electrolyte Glucose Fuel Cell for Implantable Electronics
Name
Advanced Materials - 2022 - Simons - A Ceramic‐Electrolyte Glucose Fuel Cell for Implantable Electronics.pdf
Description
Published version
Size
1.91 MB
Format
Adobe PDF
Checksum (MD5)
f18049ef28b5058b0cd110c80f8b9f57
Author(s)
Simons, Philipp
Schenk, Steven A
Gysel, Marco A
Olbrich, Lorenz F
Rupp, Jennifer LM
Date Issued
June 2022
Journal
Advanced Materials
Publisher
Wiley
Citation
Simons, Philipp, Schenk, Steven A, Gysel, Marco A, Olbrich, Lorenz F and Rupp, Jennifer LM. 2022. "A Ceramic‐Electrolyte Glucose Fuel Cell for Implantable Electronics." Advanced Materials, 34 (24).
Version
Final published version
Abstract
Next-generation implantable devices such as sensors, drug-delivery systems, and electroceuticals require efficient, reliable, and highly miniaturized power sources. Existing power sources such as the Li-I2 pacemaker battery exhibit limited scale-down potential without sacrificing capacity, and therefore, alternatives are needed to power miniaturized implants. This work shows that ceramic electrolytes can be used in potentially implantable glucose fuel cells with unprecedented miniaturization. Specifically, a ceramic glucose fuel cell-based on the proton-conducting electrolyte ceria-that is composed of a freestanding membrane of thickness below 400 nm and fully integrated into silicon for easy integration into bioelectronics is demonstrated. In contrast to polymeric membranes, all materials used are highly temperature stable, making thermal sterilization for implantation trivial. A peak power density of 43 µW cm-2 , and an unusually high statistical verification of successful fabrication and electrochemical function across 150 devices for open-circuit voltage and 12 devices for power density, enabled by a specifically designed testing apparatus and protocol, is demonstrated. The findings demonstrate that ceramic-based micro-glucose-fuel-cells constitute the smallest potentially implantable power sources to date and are viable options to power the next generation of highly miniaturized implantable medical devices.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1002/adma.202109075
