journal article·2018-12

In Situ Transmission Electron Microscopy: Direct Visualization of Li Dendrite Effect on LiCoO2 Cathode by In Situ TEM (Small 52/2018)

Zhenzhong Yang, Phuong‐Vu Ong, Yang He, Le Wang, Mark E. Bowden, Wu Xu, Timothy C. Droubay, Chongmin Wang, Peter V. Sushko, Yingge Du

Small· Volume 14· Issue 52
Publisher page

Abstract

In article number 1803108, Yingge Du and co-workers directly visualize the interaction of Li dendrites with well-defined epitaxial LiCoO2 thin films at the atomic scale using in situ transmission electron microscopy. Li atoms are shown to selectively attack the LiCoO2 crystal along the [001] direction, generating a large number of grain boundaries and anti-phase boundaries that are rich in Li2O at the reaction front. A two-step conversion reaction with CoO as a metastable intermediate is revealed in between these boundaries.
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Research context

OpenAlex topics: Advancements in Battery Materials

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Affiliations

Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland WA 99354 USA

Environmental Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland WA 99354 USA

Energy and Environment Directorate Pacific Northwest National Laboratory Richland WA 99354 USA

References

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