Work

Operando XCT with fine sampling of discharge process provides new insights into anode’s morphology evolution in a commercial zinc-air battery

Year: 2025

Type: article

Abstract: Fine sampling of the discharge process revealed details of the anode’s morphology evolution in a commercial zinc-air battery. With special software developed for laboratory XCT scanners, it was possible to observe and quantify the evolution of individual particles. An operando sequence consisting of 30 tomograms within 30 h of discharge at a low C-rate, resulted in shape changes small enough for successful quantification. Two morphological descriptors, i.e. equivalent diameter and complexity factor, were used to assess the morphology of the particles. Details on underlying mechanisms are provided, including the shrinking-core concept, dissolution and the newly observed anisotropic shrinkage.

Source: Methods in microscopy

DOI: 10.1515/mim-2025-0007

Authors: Krzysztof Dzięcioł, Yasin Emre Durmus, Eunmi Im, Hermann Tempel, Florian Hausen, Rüdiger-A. Eichel

Institutions: Forschungszentrum Jülich, RWTH Aachen University

Language: English

Topic: Advanced battery technologies research

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,260

Funder: Bundesministerium für Bildung und Forschung