Related Experiment Video
Updated: Jan 27, 2026

Localized Bathless Metal-Composite Plating via Electrostamping
Published on: September 22, 2020
Two-dimensional molecular brush-functionalized porous bilayer composite separators toward ultrastable high-current
Chuanfa Li1, Shaohong Liu1, Chenguang Shi1
1Materials Science Institute, PCFM Lab and GDHPRC Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
Abstract:
Lithium metal batteries have been considerably limited by the problems of uncontrolled dendritic lithium formation and the highly reactive nature of lithium with electrolytes. Herein, we have developed functional porous bilayer composite separators by simply blade-coating polyacrylamide-grafted graphene oxide molecular brushes onto commercial polypropylene separators. Our functional porous bilayer composite separators integrate the lithiophilic feature of hairy polyacrylamide chains and fast electrolyte diffusion pathways with the excellent mechanical strength of graphene oxide nanosheets and thus enable molecular-level homogeneous and fast lithium ionic flux on the surfaces of electrodes. As a result, dendrite-free uniform lithium deposition with a high Coulombic efficiency (98%) and ultralong-term reversible lithium plating/stripping (over 2600 h) at a high current density (2 mA cm-2) are achieved for lithium metal anodes. Remarkably, lithium metal anodes with an unprecedented stability of more than 1900 h cycling at an ultrahigh current density of 20 mA cm-2 are demonstrated.
Related Concept Videos
Current Density
Boundary Conditions for Current Density
Alkali Metals
Table 1: Properties of the alkali metals
Molecular Models
Composition of Polyprotic Acid Solutions as a Function of pH
A graph with the alpha values is plotted against the volume of...
Bonding in Metals

