Electrolyte motion induced salt inhomogeneity – a novel aging mechanism in large-format lithium-ion cells

• DOI: 10.1039/d4ee03211j
• Publication Date: 2024-08-27T07:20:35Z
• Authors: Sophie Solchenbach; Camilla Tacconis; Aurora Gomez Martin; Verena Peters; Lea Wallisch; Anna Stanke; Johanna Hofer; Diemo Renz; Burkhard Lewerich; Georg Bauer; Moritz Wichmann; Daniel Goldbach; Alexander Adam; Markus Spielbauer; Peter Lamp; Johannes Wandt
• Keywords: Cycling; Plating (geology)

Electrolyte motion induced salt inhomogeneity (EMSI): during cycling, electrolyte moves into and out of the jelly roll, which leads to a lasting in-plane LiPF 6 concentration gradient, possibly causing secondary effects like localized lithium plating.