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

Journal Article (2020)
Author(s)

Shibabrata Basak (Forschungszentrum Jülich, Student TU Delft)

Siemen Baaij (Student TU Delft)

Swapna Ganapathy (TU Delft - RID/TS/Instrumenten groep)

Chandramohan George (Imperial College London)

Hermann Tempel (Forschungszentrum Jülich)

Hans Kungl (Forschungszentrum Jülich)

Erik M. Kelder (TU Delft - RST/Storage of Electrochemical Energy)

Henny W. Zandbergen (TU Delft - QN/Zandbergen Lab)

Marnix Wagemaker (TU Delft - RST/Storage of Electrochemical Energy)

Rüdiger A. Eichel (Forschungszentrum Jülich, RWTH Aachen University)

Research Group
RID/TS/Instrumenten groep
DOI related publication
https://doi.org/10.1021/acsaem.0c01803
More Info
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Publication Year
2020
Language
English
Research Group
RID/TS/Instrumenten groep
Issue number
10
Volume number
3
Pages (from-to)
9509-9515
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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.