Journal Article

IMPULSE-2025-00085

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Influence of current tabs on performance and aging of multi-tab 26650-type LFP lithium-ion batteries

Petz, D.MLZ* ; Mühlbauer, M. J. ; Baran, V. ; Kornmeier, J. R. ; Schökel, A. ; Pirling, T. ; Müller-Buschbaum, P.MLZ* ; Senyshyn, A. (Corresponding author)MLZ*

2025
Elsevier Amsterdam [u.a.]

Please use a persistent id in citations: doi:10.1016/j.est.2025.115911  doi:/10.1016/j.est.2025.115911

Abstract: Two high-power lithium-ion batteries of 26650-type adopting LiFePO4|C cell chemistry are non-invasively characterized using electrochemical, thermodynamical, and diffraction-based methods. Their discharging and charging behavior are probed using incremental capacity analysis and differential voltage analysis normalized to the state-of-charge. Differential thermal analysis allows for a qualitative probe of the electrolyte subsystem in both cells. Diffraction-based non-destructive characterization using both synchrotron and neutron radiation (in the form of X-ray diffraction computed tomography and spatially-resolved neutron diffraction) reveals the state-of-lithiation for cathode and anode materials in the fully-charged state at operando conditions. Electrochemical characteristics, influence of cell geometry, and state-of-lithiation are compared and discussed, and their effect and interplay are elucidated in detail.

Keyword(s): Energy (1st) ; Materials Science (2nd)

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Contributing Institute(s):

1. DEVA (DEVA)
2. SPODI (SPODI)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2025

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Essential Science Indicators ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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