In-Situ Electrochemical Transmission Electron Microscopy for Battery Research

Journal Article · Wed Jan 01 00:00:00 EST 2014 · Microscopy and Microanalysis

DOI:https://doi.org/10.1017/S1431927614000488· OSTI ID:1136383

Mehdi, Beata L ^[1]; Gu, Meng ^[1]; Parent, Lucas ^[1]; Xu, WU ^[1]; Nasybulin, Eduard ^[1]; Chen, Xilin ^[1]; Unocic, Raymond R ^[2]; Xu, Pinghong ^[3]; Welch, David ^[1]; Abellan, Patricia ^[1]; Zhang, Ji-Guang ^[1]; Liu, Jun ^[1]; Wang, Chongmin ^[1]; Arslan, Ilke ^[1]; Evans, James E ^[1]; Browning, Nigel ^[1]

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1. Pacific Northwest National Laboratory (PNNL)
2. ORNL
3. University of California, Davis

The recent development of in-situ liquid stages for (scanning) transmission electron microscopes now makes it possible for us to study the details of electrochemical processes under operando conditions. As electrochemical processes are complex, care must be taken to calibrate the system before any in-situ/operando observations. In addition, as the electron beam can cause effects that look similar to electrochemical processes at the electrolyte/electrode interface, an understanding of the role of the electron beam in modifying the operando observations must also be understood. In this paper we describe the design, assembly, and operation of an in-situ electrochemical cell, paying particular attention to the method for controlling and quantifying the experimental parameters. The use of this system is then demonstrated for the lithiation/delithiation of silicon nanowires.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1136383
• Journal Information: Microscopy and Microanalysis, Vol. 20, Issue 02; ISSN 1431--9276
• Country of Publication: United States
• Language: English