Journal Article

FZJ-2024-03203

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Lithium-ion battery cell formation: status and future directions towards a knowledge-based process design

Schomburg, F. ; Heidrich, B. ; Wennemar, S. ; Drees, R. ; Roth, T. ; Kurrat, M. ; Heimes, H. ; Jossen, A. ; Winter, M.FZJ* ; Cheong, J. Y. ; Röder, F. (Corresponding author)

2024
RSC Publ. Cambridge

This record in other databases:    

Please use a persistent id in citations: doi:10.1039/D3EE03559J  doi:10.34734/FZJ-2024-03203

Abstract: The battery cell formation is one of the most critical process steps in lithium-ion battery (LIB) cell production, because it affects the key battery performance metrics, e.g. rate capability, lifetime and safety, is time-consuming and contributes significantly to energy consumption during cell production and overall cell cost. As LIBs usually exceed the electrochemical sability window of the electrolyte, formation is required to activate and stabilise the electrochemical reactions. Enhanced battery technologies are poised to further expand voltage windows and harness conversion or metal electrodes to elevate energy density, thereby magnifying the significance of cell formation in the battery realm. Despite its critical importance, even the understanding of the formation process of conventional LIBs is still incomplete due to numerous influencing factors. Complex internal processes and the associated high experimental and simulation effort make it difficult to gain a thorough understanding of the process and hence to optimise it. This review paper provides a systematic overview of the formation process and its influencing factors. It is emphasized that material and cell design and the formation process are not independent, but must interlock with each other. Promising experimental and simulative methods to gain the required understanding of the interplay for a truly knowledge-based design of the formation process are highlighted. In the concluding discussion research gaps are identified and a perspective for development of tailored cell formation processes for current and future battery technologies is outlined.

Note: Zudem unterstützt durch das Projekt "FormEL’’ (03XP0296E) als Teil des Kompetenzklusters ProZell’’ des BMBF.

---

Contributing Institute(s):

1. Helmholtz-Institut Münster Ionenleiter für Energiespeicher (IEK-12)

Research Program(s):

1. 1221 - Fundamentals and Materials (POF4-122) (POF4-122)
2. DFG project 533115776 - Enthüllung der mikrostrukturellen und elektrochemischen Entwicklung einer Si/Sn-Nanofaserverbundanode für Lithium-Ionen-Batterien (533115776) (533115776)

Appears in the scientific report 2024

---

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

---