Unique Li deposition behavior in Li3PS4 solid electrolyte observed via operando X-ray computed tomography

Jaehee Park; Toshiki Watanabe; Kentaro Yamamoto; Tomoki Uchiyama; Tsuyoshi Takami; Atsushi Sakuda; Akitoshi Hayashi; Masahiro Tatsumisago; Yoshiharu Uchimoto

doi:10.1039/d2cc05224e

Unique Li deposition behavior in Li₃PS₄ solid electrolyte observed via operando X-ray computed tomography

Chem Commun (Camb). 2023 Jun 20;59(50):7799-7802. doi: 10.1039/d2cc05224e.

Authors

Jaehee Park¹, Toshiki Watanabe¹, Kentaro Yamamoto^{1

2}, Tomoki Uchiyama¹, Tsuyoshi Takami¹, Atsushi Sakuda³, Akitoshi Hayashi³, Masahiro Tatsumisago³, Yoshiharu Uchimoto¹

Affiliations

¹ Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, Kyoto 606-8501, Japan.
² Faculty of Engineering, Nara Women's University, Nara, Nara 630-8506, Japan.
³ Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan.

PMID: 37266921
DOI: 10.1039/d2cc05224e

Abstract

The problem of lithium dendrites must be addressed for practical lithium metal all-solid-state batteries. Herein, three-dimensional morphological changes within Li₃PS₄ electrolyte away from the anode were observed using operando X-ray computed tomography. We revealed that the electronic conduction of decomposition and the electrolyte/void interface cause the lithium deposition within the Li₃PS₄.