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| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
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| 1 | Jack Zhong | -- | 203 | 2026-09-28 08:20:57 | | | |
| 2 | Jack Zhong | -12 word(s) | 191 | 2026-09-28 08:21:28 | | |
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An interfacial reaction is a chemical transformation that takes place at the boundary between two phases in contact and produces a layer whose composition differs from either of them. In an electrochemical cell this layer grows where the electrode meets the electrolyte, because the potential window of the electrolyte exceeds the range in which both are stable; reduction products of the salt and the solvent precipitate on the electrode and, being electronically insulating but ionically conducting, slow further reaction once they reach a certain thickness [1]. The same process occurs on the positive electrode, where an analogous film forms during charge and modifies the charge-transfer resistance there [2]. Which compounds appear first is set by the salt anion and the solvent, so changing the electrolyte composition changes both the layer chemistry and the interfacial resistance [3]. Because the layer thickens slowly and consumes mobile lithium, continuum models treat it as a growing resistive film coupled to capacity loss over many cycles [4]. Following the process while the cell operates, rather than after disassembly, is what has made the sequence of steps measurable [5].
References
- Wu, Y.; Ge, G.; Wang, S.; Xiong, L.; He, Z. Formation mechanisms of solid electrolyte interphase and its influence on lithium battery performance. Materials Today Energy 2025, 54, 102124. [CrossRef]
- Wang, M.; Zhou, Y.; Zou, K.; Ma, Z.; Liao, X.; Xiao, R.; Ke, X. Formation Mechanism and New Function of Cathode Electrolyte Interphase/Solid Electrolyte Interphase in Lithium-Ion Battery with LiPF6 + LATP Composite Electrolyte. Langmuir 2025, 41, 12414-12425. [CrossRef]
- Yun, H.; Jeong, S.K. Influence of Lithium Salts on Solid Electrolyte Interphase Formation and Interfacial Resistance in Silicon Monoxide-Based Lithium Secondary Batteries. Defect and Diffusion Forum 2025, 442, 29-34. [CrossRef]
- Xie, Y.; Li, J.; Yuan, C. Multiphysics modeling of lithium ion battery capacity fading process with solid-electrolyte interphase growth by elementary reaction kinetics. Journal of Power Sources 2014, 248, 172-179. [CrossRef]
- Tyree, D.; Su, H.; Mao, N.; Zhou, X. Operando Impedance Signatures of Lithium-Ion Battery Solid Electrolyte Interphase Formation. Energies 2026, 19, 1895. [CrossRef]
