A novel microdevice for in situ study of mechano-electrochemical behavior with controlled temperature

Wonmo Kang, Marriner Merrill, Collin Becker, Corey Love

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nanostructured electrodes have shown great potential in the development of Li-ion batteries with higher energy and power densities and longer cycle life. A fundamental understanding of the mechano-electrochemical behavior during charging/discharging cycles is essential for optimal and reliable design. Previous work has utilized in situ experimental techniques in an electron microscope to directly visualize material response during the reaction cycles. Unfortunately, the present in situ test methods are limited to room temperature and, as a result, the effect of temperature on charging/discharging cycles is not well understood. These electrochemical processes are intrinsically temperature sensitive, particularly for nanostructured electrodes. Here we present a novel microdevice that allows high resolution in situ observation of mechano-electrochemical response of nanomaterials in a scanning electron microscope with controlled temperature. The microdevice consists of built-in microcircuits for concurrent heating and temperature measurement during in situ experiments. To demonstrate these unique capabilities, we present the design, microfabrication and thermal characterization of this new class of microdevice.

Original languageEnglish (US)
Title of host publicationMicro and Nanomechanics - Proceedings of the 2016 Annual Conference on Experimental and Applied Mechanics
EditorsNikhil Karanjgaokar, La Vern Starman, Jennifer Hay
PublisherSpringer New York LLC
Pages51-56
Number of pages6
ISBN (Print)9783319422275
DOIs
StatePublished - 2017
Externally publishedYes
EventAnnual Conference and Exposition on Experimental and Applied Mechanics, 2016 - Orlando, United States
Duration: Jun 6 2016Jun 9 2016

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume5
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

ConferenceAnnual Conference and Exposition on Experimental and Applied Mechanics, 2016
CountryUnited States
CityOrlando
Period6/6/166/9/16

Keywords

  • High temperature
  • In situ testing
  • Li-ion battery
  • Lithiation
  • MEMS
  • Si anode

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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