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

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
DC Battery01:21

DC Battery

A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
Schottky Barrier Diode01:27

Schottky Barrier Diode

Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
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...
The Electrical Double Layer01:30

The Electrical Double Layer

In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
Processes at Electrodes01:30

Processes at Electrodes

The electrode interacts with ions in the electrolyte solution at its interface. The rate of oxidation and reduction depends on the speed at which electrons can transfer through this interface. As ions attach to or leave the electrode surface, the electrode acquires a charge, and an electrical potential forms across the interface, making the process more difficult to reach equilibrium. The charge on the electrode affects the local ion concentrations in the solution, though thermal motion...

You might also read

Related Articles

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

Sort by
Same author

Cation Modulation of Layered Self-Assembled Polyoxometalates Enables Efficient and Robust Hydrogen Evolution.

Angewandte Chemie (International ed. in English)·2026
Same author

Gadolinium-Enhanced Bismuth Cathode for High-Performance CO<sub>2</sub>-to-Formate Conversion Across Electrochemical and Bioelectrochemical Energy Systems.

Small methods·2026
Same author

A Phenothiazine-Derived Organic Cathode for High-Capacity Aqueous Aluminum Batteries.

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

A MoO<sub>3</sub>-CoOOH synergistic catalyst for low-voltage paired glycerol electrolysis.

Chemical communications (Cambridge, England)·2026
Same author

Amorphous-Crystalline High-Entropy Electrocatalysts for H<sub>2</sub> Evolution in High-Power Aluminum-Based Fuel Cells.

Journal of the American Chemical Society·2026
Same author

Entropy-Driven Nonmetal Doping for Electrocatalysis and Energy Storage.

Small (Weinheim an der Bergstrasse, Germany)·2026

Related Experiment Video

Updated: May 13, 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

Bulk-Interface Synergy Enables Stable High-Voltage P2-Type Layered Oxide Cathodes for Fast-Charging Sodium-Ion

Pengyuan Wang1,2,3, Yangjie Liu1, Ziting Chen1,2,3

  • 1State Key Laboratory of Structural Chemistry, and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.

ACS Nano
|March 3, 2026
PubMed
Summary

This study introduces a dual-engineering strategy using Mg2+ doping and CeO2 coating to enhance P2-type layered oxide cathodes for sodium-ion batteries (SIBs), improving stability and performance.

Keywords:
P2-type layered oxideP2−O2 phase transitionbulk-interface synergyredox modulationsodium-ion batteries

More Related Videos

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
09:49

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

Published on: February 13, 2017

Archimedes-Based Glycerol Displacement for Electrode Porosity Measurement in Lead-Acid Batteries
13:02

Archimedes-Based Glycerol Displacement for Electrode Porosity Measurement in Lead-Acid Batteries

Published on: April 7, 2026

Related Experiment Videos

Last Updated: May 13, 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

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
09:49

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

Published on: February 13, 2017

Archimedes-Based Glycerol Displacement for Electrode Porosity Measurement in Lead-Acid Batteries
13:02

Archimedes-Based Glycerol Displacement for Electrode Porosity Measurement in Lead-Acid Batteries

Published on: April 7, 2026

Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • P2-type layered oxides are promising for high-energy sodium-ion batteries (SIBs).
  • Challenges include irreversible P2-O2 transitions and interfacial degradation, leading to capacity fading.
  • Existing cathode materials require structural and interfacial stabilization for improved long-term performance.

Purpose of the Study:

  • To develop a bulk-interface dual-engineering strategy for P2-type layered oxide cathodes in SIBs.
  • To overcome challenges of irreversible transitions and interfacial degradation.
  • To enhance structural stability, ion diffusion, and overall electrochemical performance.

Main Methods:

  • Synergistic Mg2+ doping into the bulk structure of P2-type Na0.67Ni0.23Mn0.67O2 (NNMMO).
  • Surface modulation with a conformal CeO2 nanolayer coating.
  • Electrochemical characterization including cycling stability, rate capability, and impedance spectroscopy.
  • Structural analysis to investigate phase transitions and lattice strain.

Main Results:

  • The designed Na0.67Mg0.1Ni0.23Mn0.67O2-CeO2 (NNMMO-Ce) cathode demonstrated enhanced structural stability and suppressed detrimental high-voltage transitions.
  • CeO2 nanolayer effectively buffered lattice strain and prevented cracking, while enabling reversible Ce3+/Ce4+ redox activity.
  • NNMMO-Ce exhibited excellent capacity retention (94.0% at 0.1 C), high rate capability (66.2 mAh g-1 at 20 C), and over 35-fold enhanced Na+ diffusion.
  • A full cell with a hard-carbon anode achieved high energy density (258.97 Wh kg-1) and excellent cycling stability.

Conclusions:

  • The cooperative bulk-interface strategy effectively stabilizes P2-type cathodes for SIBs.
  • This approach significantly improves cycling stability, rate capability, and energy density.
  • The findings pave the way for developing high-capacity, fast-charging, and long-lived SIB cathodes.