Journal Article

FZJ-2025-02656

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Probing solid-state battery aging: evaluating calendar vs. cycle aging protocols via time-resolved electrochemical impedance spectroscopy

Truong, T. K. ; Whang, G. ; Huang, J. ; Sandoval, S. E. ; Zeier, W. (Corresponding author)FZJ*

2025
RSC London ˜[u.a.]œ

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Please use a persistent id in citations: doi:10.1039/D5TA01083G  doi:10.34734/FZJ-2025-02656

Abstract: Understanding battery aging mechanisms is critical towards identifying and improving upon performance bottlenecks. Aging protocols which can quickly identify and monitor degradation of cells can help expedite solid-state battery development by predicting the possible long-term aging trend of cells in a time efficient manner. In this work, the degradation behavior of $In/InLi|Li_6PS_5Cl|NCM83:Li_6PS_5Cl$ cells was investigated using two different accelerated aging protocols: (1) calendar aging and (2) cycle aging. Cells with various cut-off potentials were investigated using the two aging protocols showing significantly greater performance deterioration under calendar aging relative to cycle aging. Applying distribution of relaxation times analyses obtained from impedance spectroscopy, the cathode–electrolyte interfacial resistance evolution is found to be the dominant degradation mechanism during calendar aging while changes at the anode–electrolyte interface are influential during cycle aging tests. The aging protocol and analyses applied in this work can potentially be further extended to other systems to help understand degradation processes and quickly screen cells for optimization.

Note: financial support from ProRec project funded by the Bundesministerium für Bildung und Forschung (BMBF, project 03XP0537A)

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Contributing Institute(s):

1. Helmholtz-Institut Münster Ionenleiter für Energiespeicher (IMD-4)

Research Program(s):

1. 1222 - Components and Cells (POF4-122) (POF4-122)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 10 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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