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Open AccessArticle

A Minimal Volume Hermetic Packaging Design for High-Energy-Density Micro-Energy Systems

Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104, USA
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in Proceedings of PowerMEMS 2019, Kraków, Poland, 2–6 December 2019; pp. 1–4, doi:10.1109/PowerMEMS49317.2019.30773702286.
Energies 2020, 13(10), 2492;
Received: 27 April 2020 / Revised: 13 May 2020 / Accepted: 14 May 2020 / Published: 15 May 2020
Hermetic packaging is critical to the function of many microscale energy storage and harvesting devices. State-of-the-art hermetic packaging strategies for energy technologies, however, are designed for macroscale devices and dramatically decrease the fraction of active materials when applied to micro-energy systems. We demonstrated a minimal volume hermetic packaging strategy for micro-energy systems that increased the volume of active energy storage materials by 2× and 5× compared to the best lab scale microbatteries and commercial pouch cells. The minimal volume design used metal current collectors as a multifunctional hermetic shell and laser-machined hot melt tape to provide a thin, robust hermetic seal between the current collectors with a stronger adhesion to metals than most commercial adhesives. We developed the packaging using commercially available equipment and materials, and demonstrated a strategy that could be applied to many kinds of micro-energy systems with custom shape configurations. This minimal, versatile packaging has the potential to improve the energy density of current micro-energy systems for applications ranging from biomedical devices to micro-robots. View Full-Text
Keywords: hermetic packaging; IoT; MEMS; microbattery; battery; harvester hermetic packaging; IoT; MEMS; microbattery; battery; harvester
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MDPI and ACS Style

Yue, X.; Grzyb, J.; Padmanabha, A.; Pikul, J.H. A Minimal Volume Hermetic Packaging Design for High-Energy-Density Micro-Energy Systems. Energies 2020, 13, 2492.

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