Characterization of Electrodeposited Li Metal by Cryo-Scanning Transmission Electron Microscopy/Electron Energy Loss Spectroscopy

Kei Nishikawa; Keisuke Shinoda

doi:10.1021/acs.jpclett.1c00717

journal article·2021-04-29

Characterization of Electrodeposited Li Metal by Cryo-Scanning Transmission Electron Microscopy/Electron Energy Loss Spectroscopy

Kei Nishikawa, Keisuke Shinoda

The Journal of Physical Chemistry Letters· Volume 12· Issue 16

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Source abstract

Abstract

The Li metal anode is a promising key component for next-generation high-energy-density batteries. Understanding the charge/discharge mechanism of Li metal is therefore necessary for the effective utilization of Li metal anodes in commercial batteries. In this study, scanning transmission electron microscopy (STEM) combined with electron energy loss spectroscopy (EELS) was conducted to reveal the chemical state of the Li metal anode surface. Cryogenic techniques and ultramicroelectrodes (UMEs) enabled the observation of electrodeposited Li metal on the nanometer scale. The chemical compositions of several surface layers were revealed by cryo-STEM-EELS analysis, and these measurements gave crucial information regarding the surface layer of the electrodeposited Li metal.

Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage Nanomaterials

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

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

Affiliations

Rechargeable Battery Materials Group, Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Electrochemical Energy Device Team, Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Battery Research Platform, Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

Funding

Japan Society for the Promotion of Science · Advanced Low Carbon Technology Research and Development Program

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