Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Alkali Metals

Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same authorSame journal

Vacuum Pyrolysis Engineered CoSb/C Scaffold for Sodium Metal Anodes with Sodiophilic and Superionic Interphase.

Nano letters·2026

Same author

Operando identification of anion effect on lithium nucleation and growth via in situ transmission electron microscopy.

Nature communications·2026

Same author

Indium-Mediated Glue-Like Interlayer Enables Stable High-Capacity Flexible Sodium Metal Batteries.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Additive-Specific SEI Nanostructures on Silicon Anodes Revealed by Cryo-TEM and EELS under Suppressed Bulk Alloying.

Nano letters·2026

Same author

Practical lithium-organic batteries enabled by an n-type conducting polymer.

Nature·2026

Same author

Unravel Electrolyte-Dependent Interphase Structures in Lithium-Sulfurized Polyacrylonitrile Batteries via Cryogenic Transmission Electron Microscopy.

ACS nano·2026

Same journal

Intrinsic Superconducting Gap in Bilayer KCa<sub>2</sub>Fe<sub>4</sub>As<sub>4</sub>F<sub>2</sub> and Decoupled Monolayer FeAs.

Nano letters·2026

Same journal

Programmable Hydrogen-Assisted Chemical Vapor Deposition Growth and Bipolar Transport in Two-Dimensional MoO<sub>2</sub> Nanoflakes.

Nano letters·2026

Same journal

A Curvature-Modulated Strategy for Single-Atom Catalysts toward Reciprocal Regulation in Li-S Batteries.

Nano letters·2026

Same journal

Hexagonal SiGe Quantum Dots in Nanowires.

Nano letters·2026

Same journal

Monolithic Axial InGaAs Quantum Dot Emitters in GaAs-Based Nanowires via Sb-Mediated Facet Engineering.

Nano letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Sep 22, 2025

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

Enabling Ultrastable Alkali Metal Anodes by Artificial Solid Electrolyte Interphase Fluorination.

Yifeng Cheng¹, Xuming Yang¹, Menghao Li¹

¹Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.

|May 18, 2022

Summary

This summary is machine-generated.

Researchers developed a novel fluoride-based artificial solid-electrolyte interphase (SEI) to stabilize alkali metal anodes. This innovation enhances battery performance and safety by preventing dendrite growth and improving interfacial stability.

Keywords:

Alkali metal anode Cryo-TEM Dendrite-free deposition Metal protection

More Related Videos

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique

Published on: November 3, 2017

Related Experiment Videos

Last Updated: Sep 22, 2025

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique

Published on: November 3, 2017

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Alkali metal anodes (Li, Na, K) offer high specific capacity but suffer from dendrite growth and interfacial instability.
These issues limit practical applications due to performance degradation and safety concerns.

Purpose of the Study:

To develop a simple method for creating tunable, fluoride-based artificial solid-electrolyte interphases (SEIs).
To address the challenges of dendrite formation and interfacial instability in alkali metal anodes.

Main Methods:

A mild organic fluorinating reagent was used to fluorinate alkali metals, forming a fluoride-based artificial SEI.
Advanced electron microscopy was employed for comprehensive characterization of the SEI structure.

Main Results:

The LiF-based artificial SEI exhibits a crystal-glass structure, facilitating efficient Li ion transport.
The artificial SEI enhances structural integrity during Li plating/stripping, reducing voltage hysteresis.
Significant improvements in rate capability and cycle life were observed for Li, Na, and K anodes.

Conclusions:

The developed fluoride-based artificial SEI effectively suppresses dendrite growth and enhances interfacial stability.
This method offers a promising strategy for improving the performance and safety of next-generation alkali metal batteries.