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Related Experiment Video

Updated: Jan 9, 2026

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

An Oxygen-Scavenger Sulfide Coating Enabling Long-Term Stable Nickel-Rich Cathodes.

Kevin Velasquez Carballo¹, Jiyu Cai², Taohedul Islam¹

¹Department of Mechanical Engineering, University of Arkansas, Fayetteville, AR, 72701, USA.

Small (Weinheim an Der Bergstrasse, Germany)

|December 5, 2025

Summary

This study introduces a nanoscale zirconium disulfide (ZrS2) coating for lithium battery cathodes, effectively scavenging oxygen. This innovative coating prevents degradation and enhances battery performance and safety.

Keywords:

atomic layer deposition interfacial issues irreversible phase transition microcracking nickel‐rich cathodes oxygen release structural instability zirconium disulfide

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Published on: August 18, 2023

Area of Science:

Materials Science
Electrochemistry
Nanotechnology

Background:

Layered metal oxide cathodes in lithium batteries suffer from oxygen release, leading to performance degradation and safety issues.
Existing solutions for oxygen release and cathode instability remain insufficient for long-term stable cyclability.

Purpose of the Study:

To develop a novel method for mitigating oxygen release in LiNi0.8Mn0.1Co0.1O2 (NMC811) cathodes.
To investigate the effectiveness of nanoscale ZrS2 coatings applied via atomic layer deposition (ALD) in stabilizing NMC811 cathodes.

Main Methods:

Atomic layer deposition (ALD) was used to apply conformal nanoscale ZrS2 coatings onto prefabricated NMC811 cathodes.
The in situ conversion of ZrS2 to Zr(SO4)2 and its impact on cathode stability and electrolyte interface were analyzed.

Main Results:

The ALD-deposited ZrS2 coating effectively scavenges oxygen and converts into a stable Zr(SO4)2 layer.
The Zr(SO4)2 coating protects the electrolyte, stabilizes the NMC811-electrolyte interface, and suppresses microcracking and transition metal dissolution.
The ZrS2-coated NMC811 cathode exhibited significantly enhanced electrochemical performance and structural stability.

Conclusions:

Nanoscale ZrS2 coating via ALD provides an effective strategy for stabilizing layered metal oxide cathodes by acting as an oxygen scavenger and forming a protective sulfate layer.
This approach offers a promising pathway for improving the cycle life and safety of high-energy lithium batteries, particularly NMC811 cathodes.
The study advances interface engineering principles for next-generation battery materials.