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Published on: November 11, 2013
Functional Nitrile Ether Additives for High-Energy-Density Lithium Metal Batteries: Multiscale Mechanism Study on
Jia Zeng1, Zixiang Li1, Peinan Lin1
1School of Materials and New Energy, South China Normal University, Shanwei 516600, Guangdong, China.
The Journal of Physical Chemistry. B
|June 15, 2026
Summary
New nitrile ether derivatives enhance high-voltage lithium-ion battery performance by improving electrolyte stability and ion transport. Specific molecules show promise for cathode protection and anode film formation, boosting battery longevity and safety.
Area of Science:
- Materials Science
- Electrochemistry
- Computational Chemistry
Background:
- Traditional carbonate electrolytes limit high-voltage lithium-ion batteries due to decomposition and interface instability.
- Developing novel electrolyte additives is crucial for enhancing battery cycle life and safety.
Purpose of the Study:
- To design and investigate novel nitrile ether derivatives as electrolyte additives for high-voltage lithium-ion batteries.
- To understand the structure-property relationships governing the performance of these additives.
- To identify optimal additives for cathode and anode interface stabilization.
Main Methods:
- Synthesized 18 nitrile ether derivatives (EDD series) with varying cyano group substitutions.
- Employed density functional theory (DFT) and molecular dynamics (MD) simulations for multiscale analysis.
- Analyzed redox potentials, electrochemical stability windows, and solvation structures.
Main Results:
- Increasing cyano substituents enhanced molecular redox potential and broadened electrochemical stability.
- Cyano substitution lowered LUMO energy levels, improving reduction activity.
- Nitrile-ether molecules modulated solvation shells via cyanide-Li+ coordination, optimizing ion desolvation and transport.
- Identified specific molecules (110011 and 102001) for cathode and anode interface applications, respectively.
Conclusions:
- Nitrile ether derivatives offer a promising strategy for stabilizing high-voltage lithium-ion battery interfaces.
- Rational design of electrolyte additives based on cyano substitution can significantly improve battery performance.
- The identified additives provide theoretical foundations for next-generation high-voltage lithium-ion batteries.
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