JOURNAL ARTICLE

Operando Li-ion distribution measurement of all-solid-state batteries by Compton-scattered x rays.

  • Published In: Applied Physics Letters, 2024, v. 125, n. 22. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Nakamura, Kazuki; Suzuki, Kosuke; Utsuno, Futoshi; Takano, Kodai; Ando, Tomoya; Hoshi, Kazushi; Tsuji, Naruki; Sakurai, Hiroshi 3 of 3

Abstract

This article focuses on operando measurements of lithium-ion (Li-ion) distribution in the anode and cathode of a coin-type all-solid-state battery (ASSB) using Compton scattering with high-energy synchrotron radiation x rays. The study reveals that in a fresh ASSB, Li ions are uniformly distributed in the cathode but accumulate near the solid electrolyte (SE)/anode interface in the anode during charge and discharge. After 20 charge–discharge cycles, Li-ion accumulation is also observed near the SE/cathode interface, which may contribute to capacity decay. The findings demonstrate that Compton scattering is a nondestructive and effective technique for analyzing Li-ion distribution in real ASSBs, providing insights into inhomogeneous charge–discharge reactions that affect battery performance.

Additional Information

  • Source:Applied Physics Letters. 2024/11, Vol. 125, Issue 22, p1
  • Document Type:Article
  • Subject Area:History
  • Publication Date:2024
  • ISSN:0003-6951
  • DOI:10.1063/5.0238369
  • Accession Number:181152740
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