Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Electrochemical Systems01:24

Electrochemical Systems

Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...

You might also read

Related Articles

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

Sort by
Same author

Cu-catalyzed interrupted [3+2] cycloaddition of trifluoroacetonitrile imines with terminal alkynes: facile access to diverse tetrasubstituted 3-trifluoromethyl pyrazoles.

Chemical communications (Cambridge, England)·2026
Same author

Understanding the Defluorination Mechanism of Per- and Polyfluoroalkyl Substances in Wastewater: From Microscopic Process to Practical Application.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Copper-catalysed decarboxylative alkynylation-cyclization reaction of propargylic cyclic carbonates with nitrile imines to access tetrasubstituted pyrazoles.

Chemical communications (Cambridge, England)·2026
Same author

Edge-Driven Fringe-Field Effects, Reduced Screening, and Bandgap Widening in Graphene Nanoribbons Enable Single‑Molecule Sensitivity.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

The cuproptosis-related gene ITGB6 and LTBP1 may be associated with diabetic kidney disease progression and immune cell infiltration.

PeerJ·2025
Same author

Integrated Multi-omics and Experimental Validation Reveal FDX1/LIAS-Mediated Cuproptosis as a Potential Driver of Diabetic Kidney Disease.

Biological trace element research·2025

Related Experiment Video

Updated: May 15, 2026

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
11:25

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

Two-phase electrochemical lithiation in amorphous silicon.

Jiang Wei Wang1, Yu He, Feifei Fan

  • 1Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA.

Nano Letters
|January 18, 2013
PubMed
Summary

Lithium-ion battery anodes made of amorphous silicon undergo a surprising two-phase lithiation process, not a single-phase one. This discovery clarifies the mechanism behind electrode shape changes and capacity fade in advanced batteries.

More Related Videos

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
12:28

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy
07:20

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Published on: January 20, 2023

Related Experiment Videos

Last Updated: May 15, 2026

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
11:25

In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries

Published on: November 10, 2014

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
12:28

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy
07:20

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Published on: January 20, 2023

Area of Science:

  • Materials Science
  • Electrochemistry
  • Battery Technology

Background:

  • Amorphous silicon (a-Si) is a promising high-capacity anode for next-generation lithium-ion batteries.
  • Previous understanding suggested a single-phase lithiation mechanism in a-Si, potentially mitigating electrode degradation.
  • This mechanism was thought to reduce pulverization and capacity fade, crucial for battery longevity.

Purpose of the Study:

  • To investigate the electrochemical lithiation mechanism of amorphous silicon (a-Si) in lithium-ion batteries.
  • To challenge the prevailing single-phase lithiation theory for a-Si anodes.
  • To understand the fundamental reaction and degradation processes in amorphous electrode materials.

Main Methods:

  • In situ transmission electron microscopy (TEM) was employed to observe the lithiation process at the nanoscale.
  • Electrochemical characterization techniques were used to monitor the lithiation process and resulting product formation.
  • Analysis of the phase boundary movement and structural evolution during lithiation.

Main Results:

  • A two-phase electrochemical lithiation process was discovered in a-Si, contrary to previous assumptions.
  • Lithiation proceeds via a sharp phase boundary between a-Si and amorphous Li(x)Si (a-Li(x)Si, x ~ 2.5) product.
  • A second lithiation step occurs without a visible interface, forming a-Li(x)Si (x ~ 3.75), explaining anomalous electrode shape changes.

Conclusions:

  • The two-phase lithiation mechanism is fundamental to understanding the behavior of a-Si anodes in lithium-ion batteries.
  • This finding is critical for developing microstructurally stable electrodes and improving high-performance battery design.
  • The study advances the understanding of electrochemically driven reactions and degradation in amorphous materials.