ArticleProceedings of the National Academy of Sciences of the United States of America2025
Revealing the roles of the solid-electrolyte interphase in designing stable, fast-charging, low-temperature Li-ion batteries.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Electrolyte Design for Fast-Charging Lithium-Based Batteries.Advanced materials (Deerfield Beach, Fla.) · 2026Review
- Fluorinated Carboxylic Acid Ester and Carbonate Solvent Synergistically Improve Low-Temperature Performance of LiFePOChemistry (Weinheim an der Bergstrasse, Germany) · 2026Article
- Redefining LiF as a Nanostructured Building Block for Interphase Engineering in Lithium Metal Batteries.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Taming Transport Gradients: Engineered Microstructures for Fast-Charging Thick Electrodes.Small (Weinheim an der Bergstrasse, Germany) · 2026Review
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Authors and funding
19 authors.
Funding
Abstract
Designing the solid-electrolyte interphase (SEI) is critical for stable, fast-charging, low-temperature Li-ion batteries. Fostering a "fluorinated interphase," SEI enriched with LiF, has become a popular design strategy. Although LiF possesses low Li-ion conductivity, many studies have reported favorable battery performance with fluorinated SEIs. Such a contradiction suggests that optimizing SEI must extend beyond chemical composition design to consider spatial distributions of different chemical species. In this work, we demonstrate that the impact of a fluorinated SEI on battery performance should be evaluated on a case-by-case basis. Sufficiently passivating the anode surface without impeding Li-ion transport is key. We reveal that a fluorinated SEI containing excessive and dense LiF severely impedes Li-ion transport. In contrast, a fluorinated SEI with well-dispersed LiF (i.e., small LiF aggregates well mixed with other SEI components) is advantageous, presumably due to the enhanced Li-ion transport across heterointerfaces between LiF and other SEI components. An electrolyte, 1 M LiPF
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