DataVXACS Applied Energy MaterialsPaper
journal article·2021-04-26

Uniformity of Flat Li-Ion Batteries Studied by Diffraction and Imaging of X-rays and Neutrons

A. Senyshyn, V. Baran, M. J. Mühlbauer, M. Etter, M. Schulz, K. Tu, Y. Yang

ACS Applied Energy Materials· Volume 4· Issue 4
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Source abstract

Abstract

A combination of high-resolution neutron powder diffraction, energy-dependent cold-neutron radiography, and synchrotron-based X-ray diffraction radiography on two pouch bag cells of different dimensions and cell chemistries, LiCoO2|graphite and LiNi0.5Mn0.2Co0.3O2|graphite, is applied. The evolution of the crystal structure in cell electrodes and its uniformity are probed by in operando neutron diffraction on the permanently rotated pouch bag cells by applying slip ring contact. A rhombohedral-to-monoclinic phase transition is detected for both LiCoO2 and LiNi0.5Mn0.2Co0.3O2 cathodes utilized in custom-built cells. X-ray diffraction radiography performed for both cells in the charged state reveals heterogeneous lithium distribution in the graphite anode and LiCoO2 and LiNi0.5Mn0.2Co0.3O2 cathodes.
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Research context

Energy storage

OpenAlex topics: Advancements in Battery Materials · Nuclear Physics and Applications · Electron and X-Ray Spectroscopy Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstraße 1, 85748 Garching, Germany

Deutsches Elektronen Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany

Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany

Li-FUN Technology, Block J, Tanyes Science Park, No. 128, Chuangye Avenue, Tianyuan District, Zhuzhou 412000, Hunan, People’s Republic of China

State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China

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