Communication Dans Un Congrès Année : 2024

Governing parameters of the ionic transport through ceramic/organic electrolyte interface

Résumé

The development of safer electrolytes that enable the use of lithium (Li) metal negative electrode coupled with high voltage positive electrode materials, i.e. high-energy density Li based batteries, is at the core of intensive research, especially for electric mobility. Owing to their non-flammability coupled specific mechanical properties, solid-state electrolytes have emerged as promising candidates for the so-called all-solid-state batteries. However, among solid electrolytes such as solid polymer (SPE), ceramic oxide, thiophosphate, none of them offers all the properties required to ensure sufficient battery performance, calling for solid composite electrolytes to combine their respective properties, e.g. the use of SPE as matrix for its mechanical properties such as flexibility, adhesion and processability, with ceramic electrolyte (CE) particles as fillers to increase the ionic conductivity. However, the recent investigations showed a limited effective ionic conductivity due to large ceramic/polymer interface impedance1-3. As a result, many efforts have been directed to minimize ceramic/electrolyte interface resistance such as polymer plasticization3, electrolyte additives4, variation of sample preparation protocol5. However, due to the lack of systematic studies coupled to scattered literature data (variation of ca. one decade for a similar CE/SPE couples) it seems difficult to conclude on the physical parameters governing the ionic transfer kinetics through the CE/Organic Electrolyte (OE) interface. By analogy to electrochemical charge transfer, some author propose the use of Buttler-Volmer kinetics to describe the interfacial ionic charge transfer1,2. In an important piece of work, the group of Ogumi6-10 investigated the ionic transfer mechanism at CE/Liquid Electrolyte (LE) interface and suggested that the desolvation step mainly contributed to the overall energetic barrier and might be the rate limiting step of the process. However, no systematic study of CE/OE interface have been reported to assess and extend these results on a large variety of systems Herein, we systematically investigate the CE/OE interface by electrochemical impedance spectroscopy using model multilayers StainlessSteel (SS)/OE/CE/OE/SS electrochemical cells, varying the OE (liquid (PC, DMC, PEG, DMF, ACN) to polymer (PEO, PPC, PEI, SIPE, PCL), and salt concentration (10-3, 2M)), and ceramic materials to correlate some electrolyte physical properties with the interfacial ionic transport kinetics. The aim of the present work is to provide an empirical expression that can forecast the dependencies of Rint to some key parameters of the system and that can, in turn, guide the choice of the appropriate ceramic/electrolyte couple which would provide enhancement composite electrolyte performance. 1D. Brogioli, F. Langer, R. Kun and F. La Mantia, ACS Applied Materials & Interfaces, 2019, 11, 11999-12007.2.M. Schleutker, J. Bahner, C.-L. Tsai, D. Stolten and C. Korte, Physical Chemistry Chemical Physics, 2017, 19, 26596-26605.3.X. C. Chen, X. Liu, A. Samuthira Pandian, K. Lou, F. M. Delnick and N. J. Dudney, ACS Energy Letters, 2019, 4, 1080-1085.4.J. P. Vivek, N. Meddings and N. Garcia-Araez, ACS Applied Materials & Interfaces, 2022, 14, 633-646.5.W. E. Tenhaeff, X. Yu, K. Hong, K. A. Perry and N. J. Dudney, Journal of The Electrochemical Society, 2011, 158, A1143-A1149.6.F. Sagane, T. Abe, Y. Iriyama and Z. Ogumi, Journal of Power Sources, 2005, 146, 749-752.7.F. Sagane, T. Abe and Z. Ogumi, The Journal of Physical Chemistry C, 2009, 113, 20135-20138.8.F. Sagane, T. Abe and Z. Ogumi, Journal of the Electrochemical Society, 2012, 159, A1766.9.F. Sagane, K. Miyazaki, T. Fukutsuka, Y. Iriyama, T. Abe and Z. Ogumi, Chemistry Letters, 2010, 39, 826-827.

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Dates et versions

hal-04812986 , version 1 (01-12-2024)

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  • HAL Id : hal-04812986 , version 1

Citer

R. Bouchet, Léa Mangani, Christian Jordy, Didier Devaux. Governing parameters of the ionic transport through ceramic/organic electrolyte interface. 37th Topical Meeting of the International Society of Electrochemistry, International Society of Electrochemistry, Jun 2024, Stresa, Italy, Italy. ⟨hal-04812986⟩
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