Journal Article

FZJ-2026-02154

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Joint-Domain Impedance Spectroscopy for Solid-State Batteries: Enabling Accelerated Characterization and Data-Driven Insights

Huang, J. D. (Corresponding author) ; Zeier, W. (Corresponding author)FZJ*

2026
American Chemical Society Washington, DC

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Please use a persistent id in citations: doi:10.1021/acsenergylett.5c03055  doi:10.34734/FZJ-2026-02154

Abstract: Joint-domain (“hybrid”) impedance spectroscopy has the potential to accelerate characterization, improve understanding, and facilitate enhancement of solid-state batteries (SSB). By combining time- and frequency-domain data sets with the distribution of relaxation times (DRT), the hybrid approach generates accurate impedance measurements ≥ 10× faster than conventional methods. This substantially expands the conditions under which valid impedance spectra can be measured in SSB, enabling a variety of experiments from high-rate/low-frequency operando cycling to high-throughput multidimensional spectroscopy. A framework comprising hybrid spectroscopy, system-agnostic DRT visualizations, and data-driven modeling is a powerful tool for analyzing the complex electrochemical processes that are characteristic of SSB. This approach can pinpoint rate-limiting processes, identify sources of degradation, and reveal rate-dependent kinetics of battery processes. The hybrid technique has potential applications ranging from fundamental studies of new chemistries to industrial quality control, making it a valuable tool to incorporate into SSB workflows.

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Contributing Institute(s):

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

Research Program(s):

1. 1221 - Fundamentals and Materials (POF4-122) (POF4-122)

Appears in the scientific report 2026

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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 >= 20 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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