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Conference Papers Year : 2023

Operando swelling measurement of Si-C/G based anode in pouch cell

Abstract

Silicon lithiation induces a high material expansion leading to significant swelling and mechanical pressure at the anode and cell levels. The operando swelling behavior of bi-layer pouch cell with high performance silicon carbon graphite (Si-C/G) anode material measured using an in-house high precision (< 0.1µm) compression set-up with simultaneous pressure and thickness recordings as well as dynamic pressure regulation system [1] are presented. Results are compared for various cell designs in terms of electrode balancing, anode porosity or external pressure level [2]. Combining this set-up and advanced modelling, it is possible to provide physical parameters at the origin of the breathing behavior.
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cea-04208819 , version 1 (15-09-2023)

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  • HAL Id : cea-04208819 , version 1

Cite

Delphine Vidal, Théo Boivin, Willy Porcher, Jacob Locke, Michal Tulodziecki, et al.. Operando swelling measurement of Si-C/G based anode in pouch cell. 74th Annual Meeting of the International Society of Electrochemistry, Sep 2023, Lyon, France. ⟨cea-04208819⟩
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