Defects and nanostrain gradients control phase transition mechanisms in single crystal high-voltage lithium spinel

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成果类型：

期刊论文

作者：

Martens, Isaac;Vostrov, Nikita;Mirolo, Marta;Leake, Steven J;Zatterin, Edoardo;...

通讯作者：

Richard, Marie-Ingrid;Schulli, Tobias U

作者机构：

[Mirolo, Marta; Martens, Isaac; Leake, Steven J; Drnec, Jakub; Zatterin, Edoardo; Vostrov, Nikita] ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000, Grenoble, France

[Zhu, Xiaobo] College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, 410114, China

[Wang, Lianzhou] Nanomaterials Centre, School of Chemical Engineering, and Australian Institute of Bioengineering and Nanotechnology, University of Queensland, Brisbane, QLD, 4072, Australia

[Richard, Marie-Ingrid] ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000, Grenoble, France. mrichard@esrf.fr

[Richard, Marie-Ingrid] Université Grenoble Alpes, CEA Grenoble, IRIG, MEM, NRX, 17 rue des Martyrs, 38000, Grenoble, France. mrichard@esrf.fr

通讯机构：

[Marie-Ingrid Richard; Tobias U. Schulli] E

ESRF - The European Synchrotron, 71 Avenue des Martyrs, 38000, Grenoble, France.

Université Grenoble Alpes, CEA Grenoble, IRIG, MEM, NRX, 17 rue des Martyrs, 38000, Grenoble, France.

语种：

英文

期刊：

Nature Communications

ISSN：

2041-1723

年：

2023

卷：

期：

页码：

6975

DOI：

10.1038/s41467-023-42285-4

机构署名：

本校为其他机构

院系归属：

材料科学与工程学院

摘要：

Lithiation dynamics and phase transition mechanisms in most battery cathode materials remain poorly understood, because of the challenge in differentiating inter- and intra-particle heterogeneity. In this work, the structural evolution inside Li1−xMn1.5Ni0.5O4 single crystals during electrochemical delithiation is directly resolved with operando X-ray nanodiffraction microscopy. Metastable domains of solid-solution intermediates do not appear associated with the reaction front between the lithiated and delithiated phases, as predicted by curre...

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Defects and nanostrain gradients control phase transition mechanisms in single crystal high-voltage lithium spinel

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