Dynamics of Solid‐Electrolyte Interphase Formation on Silicon Electrodes Revealed by Combinatorial Electrochemical Screening

Martín‐Yerga, Daniel ORCID: 0000-0002-9385-7577, Milan, David C ORCID: 0000-0002-6569-2816, Xu, Xiangdong, Fernández‐Vidal, Julia, Whalley, Laura, Cowan, Alexander J ORCID: 0000-0001-9032-3548, Hardwick, Laurence J ORCID: 0000-0001-8796-685X and Unwin, Patrick R ORCID: 0000-0003-3106-2178 (2022) Dynamics of Solid‐Electrolyte Interphase Formation on Silicon Electrodes Revealed by Combinatorial Electrochemical Screening. Angewandte Chemie, 134 (34).

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Official URL: http://dx.doi.org/10.1002/ange.202207184

Abstract

<jats:title>Abstract</jats:title><jats:p>Revealing how formation protocols influence the properties of the solid‐electrolyte interphase (SEI) on Si electrodes is key to developing the next generation of Li‐ion batteries. SEI understanding is, however, limited by the low‐throughput nature of conventional characterisation techniques. Herein, correlative scanning electrochemical cell microscopy (SECCM) and shell‐isolated nanoparticles for enhanced Raman spectroscopy (SHINERS) are used for combinatorial screening of the SEI formation under a broad experimental space (20 sets of different conditions with several repeats). This novel approach reveals the heterogeneous nature and dynamics of the SEI electrochemical properties and chemical composition on Si electrodes, which evolve in a characteristic manner as a function of cycle number. Correlative SECCM/SHINERS has the potential to screen thousands of candidate experiments on a variety of battery materials to accelerate the optimization of SEI formation methods, a key bottleneck in battery manufacturing.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	1.1 Normal biological development and functioning, 1 Underpinning research
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	13 Sep 2022 13:29
Last Modified:	14 Mar 2024 18:13
DOI:	10.1002/ange.202207184
Open Access URL:	https://doi.org/10.1002/ange.202207184
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3164537