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Description:

Lithium titanate accommodates and releases lithium ions through phase separation. The dynamics of the phase boundary movement are critical to battery performance, particularly for maximizing the charge/discharge rates. However, details of this boundary movement remain unclear. Here, we visualize the phase boundary movement by tracking the Li distribution using operando scanning transmission electron microscopy coupled with electron energy-loss spectroscopy.

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• In Copyright
  

  This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © 2025 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsenergylett.5c00209.

Keyword: Activation energy, Diffusion , Extraction, Kinetic parameters, Phase transitions

Date published: 2025-03-14

Publisher: American Chemical Society (ACS)

Journal:

• ACS Energy Letters (ISSN: 23808195) vol. 10 issue. 3 p. 1404-1410

Funding:

• Japan Society for the Promotion of Science 23H00241
• Japan Society for the Promotion of Science 23H01858
• Japan Society for the Promotion of Science 23K13837
• Japan Science and Technology Agency JPMJGX23S2
• Acquisition, Technology & Logistics Agency JPJ004596
• Kazato research Foundation

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5529

First published URL: https://doi.org/10.1021/acsenergylett.5c00209

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Updated at: 2026-02-27 12:30:23 +0900

Published on MDR: 2026-02-27 09:51:42 +0900