Accessing lithium−oxygen battery discharge products in their native environments via transmission electron microscopy grid electrode

Journal article (2020)

Authors

Shibabrata Basak Forschungszentrum Jülich, Student
Siemen Baaij Student
S. Ganapathy RID/TS/Instrumenten groep
Chandramohan George Imperial College London
Hermann Tempel Forschungszentrum Jülich
Hans Kungl Forschungszentrum Jülich
E.M. Kelder RST/Storage of Electrochemical Energy - AS
H.W. Zandbergen QN/Zandbergen Lab
M. Wagemaker RST/Storage of Electrochemical Energy - AS
R. A. Eichel Rheinisch-Westfälische Technische Hochschule, Forschungszentrum Jülich
Research Group
RID/TS/Instrumenten groep
Copyright: © 2020 Shibabrata Basak, Siemen Baaij, S. Ganapathy, Chandramohan George, Hermann Tempel, Hans Kungl, E.M. Kelder, H.W. Zandbergen, M. Wagemaker, Rüdiger A. Eichel
DOI: https://doi.org/10.1021/acsaem.0c01803
More Info
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Published Date

2020

Language

English

Research Group

RID/TS/Instrumenten groep

Abstract

High-fidelity and facile ex situ transmission electron microscopy (TEM) characterization of lithium−oxygen (Li−O2) batteries is still limited by challenges in preserving the native environment of Li−O2 discharge products. The extreme reactivity and moisture sensitivity of the discharge products means that they are quickly altered during sample retrieval from cycled batteries and transfer for TEM analysis, resulting in loss of original information. We here demonstrate that by using a TEM specimen grid directly in Li−O2 batteries as both support electrode and sample collector overlaid on a standard oxygen diffusion electrode, discharge products that are formed on the grid can be kept pristine.