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Updated: Feb 7, 2026
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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
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Field-Responsive Dynamic Monolayer Regulated Interphase for Enhanced Lithium Metal Batteries
Elizabeth Zhang1,2, John Holoubek1,2, Hao Lyu1
1Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States.
Journal of the American Chemical Society
|February 6, 2026
Summary
Dynamic monolayers stabilize lithium metal anodes by forming protective interphases, enhancing battery performance and longevity. This breakthrough addresses key challenges in high-energy lithium batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Chemical Engineering
Background:
- Lithium metal batteries (LMBs) provide high energy density but face challenges from interphase instability.
- Continuous corrosion, solid electrolyte interphase (SEI) growth, and poor lithium deposition hinder battery cycle life.
Purpose of the Study:
- To introduce and validate a novel concept of dynamic monolayers for stabilizing Li metal anodes.
- To investigate the impact of these dynamic monolayers on the solid electrolyte interphase (SEI) and lithium deposition.
Main Methods:
- Electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D) for in situ verification.
- Cryogenic X-ray photoelectron spectroscopy (Cryo-XPS) and operando optical microscopy for interfacial analysis.
- Testing in various battery configurations including Li||Cu, Li||Li, ultrathin lithium, and anode-free NMC811.
Main Results:
- Dynamic monolayers exhibit electric field-responsive assembly into packed, structured layers at the Li interphase.
- Stronger monolayer packing promotes a more inorganic-rich SEI and chunkier lithium growth.
- Demonstrated improvements in Coulombic Efficiency, reduced overpotential, and enhanced cycling stability.
Conclusions:
- Dynamic monolayers offer a broadly applicable strategy for mitigating interfacial instability in Li metal anodes.
- This approach shows significant potential for improving the performance and lifespan of various alkali metal battery systems.
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