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Communication Dans Un Congrès Année : 2022

Interfacial instability in operating lithium-ion batteries unraveled by SHINERS

Résumé

The fundamental understanding of the electrode/electrolyte interfacial processes in lithium-sodium ion batteries (LIBs) and of their dynamics upon cycling is of prime importance for the development of new generation electrode materials. Operando analyses using the utmost sensitive techniques are required to produce an accurate depiction of the underlying processes at the origin of the battery performance decay. If enhanced Raman Spectroscopy through the use of signal nano-amplifiers (SHINs) shows the required sensitivity [1,2,3,4], its implementation in operando conditions and particularly on functional materials in contact with organic electrolytes remains challenging. Through extensive optimization of SHINERS conditions for operando diagnosis of LIB materials, including the design of near-infrared active amplifiers and the control of the photon dose, the dynamics of interfacial composition upon cycling of various electrode materials in LIB coin-cells can be extracted. Interfacial instability unraveled on both negative (Solid Electrolyte Interphase: SEI) and positive (Cathode Electrolyte interface: CEI) electrodes can be tamed through fine tuning of the electrolyte composition. [1] S. Hy, Felix; Y.-H. Chen, J. Liu, J. Rick, B.-J. Hwang “In Situ Surface Enhanced Raman Spectroscopic Studies of Solid Electrolyte Interphase Formation in Lithium Ion Battery Electrodes”, J. Power Sources, 256 (2014) 324 [2] L. Cabo-Fernandez, D. Bresser, F. Braga, S. Passerini, L. J. Hardwick, “In-Situ Electrochemical SHINERS Investigation of SEI Composition on Carbon-Coated Zn0.9Fe0.1O Anode for Lithium-Ion Batteries”. Batter. Supercaps, 2 (2019) 168 [3] C.-Y. Li, Y. Yu, C. Wang, Y. Zhang, S.-Y. Zheng, J.-F. Li, F. Maglia, R. Jung, Z.-Q. Tian, Y. Shao-Horn, “Surface Changes of LiNixMnyCo1–x–YO2 in Li-Ion Batteries Using in Situ Surface-Enhanced Raman Spectroscopy”. J. Phys. Chem. C, 124 (2020) 4024 [4] A. Gajan, C. Lecourt, B.E. Torres Bautista, L. Fillaud, J. Demeaux, I.T. Lucas, “Solid Electrolyte Interphase Instability in Operating Lithium-Ion Batteries Unraveled by Enhanced-Raman Spectroscopy“ ACS Energy Lett., 6 (2021) 1757

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Chimie
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Dates et versions

hal-04029626 , version 1 (15-03-2023)

Identifiants

  • HAL Id : hal-04029626 , version 1

Citer

Ivan T. Lucas, Antonin Gajan, Constance Lecourt, Timothée Lang, Patricia Abellan, et al.. Interfacial instability in operating lithium-ion batteries unraveled by SHINERS. RamanFest 2022, Phantoms; Horiba, Sep 2022, Paris, France. ⟨hal-04029626⟩
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