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Updated: Jun 4, 2025

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

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Mixed Conducting Oxide Coating for Lithium Batteries.

Yunha Jung¹, Jonathan E Mueller², Settasit Chaikasetsin³

¹Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States.

|December 19, 2024

Summary

Fluorine doping in lithium vanadate coatings enhances lithium-ion battery performance by improving conductivity. This study provides guidelines for creating effective mixed conducting coatings using atomic layer deposition for better battery longevity.

Keywords:

cathode materials fluorine-doping functional coatings lithium batteries mixed ionic and electronic conductors

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Related Experiment Videos

Last Updated: Jun 4, 2025

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

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Published on: January 20, 2023

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

Area of Science:

Materials Science
Electrochemistry
Battery Technology

Background:

Thin, uniform coatings are crucial for mitigating degradation in lithium-ion batteries.
Mixed ionic and electronic conductors are essential to prevent electrode polarization.
Atomic layer deposition (ALD) offers precise control over coating properties.

Purpose of the Study:

To provide guidelines for developing mixed conducting coatings.
To investigate fluorine-doped lithium vanadate as a protective coating.
To correlate experimental findings with computational predictions.

Main Methods:

Atomic layer deposition (ALD) for coating fabrication.
Electrical conductivity measurements.
Density functional theory (DFT) and climbing-image nudge elastic band (CI-NEB) calculations.

Main Results:

ALD enabled uniform and conformal fluorine-doped lithium vanadate coatings.
Optimal doping resulted in an electrical conductivity of 1.2 × 10^-5 S·cm^-1.
DFT and CI-NEB calculations confirmed enhanced ionic and electronic conduction and reduced activation energy for Li-ion transport.

Conclusions:

Fluorine doping effectively enhances the mixed conductivity of lithium vanadate coatings.
Experimental and computational results show good agreement for optimal doping levels.
This approach offers a promising strategy for improving lithium-ion battery stability and performance.