In Situ Electrochemical Transmission Electron Microscopy for Battery Research

Journal Article · Tue Apr 01 00:00:00 EDT 2014 · Microscopy and Microanalysis, 20(2):484-492

DOI:https://doi.org/10.1017/S1431927614000488· OSTI ID:1158995

Mehdi, Beata L.; Gu, Meng; Parent, Lucas R.; Xu, Wu; Nasybulin, Eduard N.; Chen, Xilin; Unocic, Raymond R.; Xu, Pinghong; Welch, David A.; Abellan, Patricia; Zhang, Jiguang; Liu, Jun; Wang, Chong M.; Arslan, Ilke; Evans, James E.; Browning, Nigel D.

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: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1158995
• Report Number(s): PNNL-SA-101383; 30203; KC0208010
• Journal Information: Microscopy and Microanalysis, 20(2):484-492, Journal Name: Microscopy and Microanalysis, 20(2):484-492
• Country of Publication: United States
• Language: English

Related Subjects

In situ liquid ec-TEM
assembly of in situ liquid electrochemical TEM cell
Li-ion battery
Si anode
Si nanowire lithiation
Environmental Molecular Sciences Laboratory