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Updated: Apr 15, 2026
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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
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High-Stability Lithium Metal Batteries Enabled by AZO-Modified Separators.
Shaojiang Hong1,2, Ruiqin Tan1, Jia Li2
1Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, China.
Materials (Basel, Switzerland)
|April 14, 2026
Summary
Researchers developed aluminum-doped zinc oxide (AZO) nanocoatings for lithium metal battery separators. This AZO layer suppresses dendrites and improves ion transport, enhancing battery safety and performance.
Area of Science:
- Materials Science
- Electrochemistry
- Battery Technology
Background:
- Lithium metal batteries (LMBs) face commercialization hurdles due to lithium dendrite growth and unstable interfaces.
- Functional nanocoatings on separators offer a solution to improve LMB performance and safety.
Purpose of the Study:
- To enhance the electrochemical performance and safety of lithium metal batteries.
- To investigate the efficacy of an aluminum-doped zinc oxide (AZO) modification layer on battery separators.
Main Methods:
- Deposited a uniform AZO modification layer on separators using magnetron sputtering.
- Evaluated the AZO layer's function as a physical barrier and interfacial regulator.
- Tested symmetric and full cells (with NCA cathode) using AZO-modified and unmodified PE separators.
Main Results:
- The AZO layer effectively suppressed lithium dendrite penetration.
- AZO modification facilitated uniform lithium-ion transport and reduced deposition overpotential.
- Cells with AZO separators showed reduced, stable overpotentials, higher specific capacity, and extended cycle life.
Conclusions:
- AZO-modified separators provide a practical strategy for improving lithium metal battery safety and performance.
- This approach offers a promising pathway for developing next-generation, high-energy-density lithium metal batteries.
- The AZO layer acts as both a physical barrier and an interfacial regulator, addressing key LMB challenges.
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