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

Equivalent Capacitance

Equivalent Capacitance

From the study of resistive circuits, it is understood that employing a series-parallel combination serves as an effective strategy for simplifying circuits. Capacitors can be arranged within a circuit in one of two ways: a series configuration or a parallel configuration. The way these capacitors are connected to a battery will influence both the potential drop across each individual capacitor and the size of the charge that each capacitor can store. This is determined by the specific type of...

Equivalent Capacitance

Equivalent Capacitance

Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the potential drop across each capacitor and the magnitude of charge stored in the individual capacitor depends on the type of the connection. The capacitor combination is replaced by a single equivalent capacitor that stores the same amount of charge as the combination for a given potential difference.
The following strategies are adopted to calculate...

Capacitors and Capacitance

Capacitors and Capacitance

A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space between the conductors is either a vacuum or an insulating material, called a dielectric. Capacitors have many applications, ranging from filtering static from radio reception to energy storage in heart defibrillators.
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...

Power

Power

The concept of work involves force and displacement; meanwhile, the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajectory. While none of these quantities or relations involves time explicitly, we know that the time available to accomplish work is often just as important as the amount of work itself. For example, sprinters in a race may have achieved the same velocity at the finish, therefore,...

Aromatic Hydrocarbon Anions: Structural Overview

Aromatic Hydrocarbon Anions: Structural Overview

Neutral hydrocarbons like cyclopentadiene with an odd number of carbon atoms and one intervening CH2 group in the ring are not aromatic. Cyclopentadiene with 4 π electrons does not satisfy the 4n + 2 π electron rule. Additionally, the intervening CH2 group is sp3 hybridized and lacks a vacant p orbital, thereby interrupting the overlap of p orbitals in a continuous manner and preventing the delocalization of π electrons throughout the ring.
Due to the absence of continuous...

Design Example: Capacitance Multiplier Circuit

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.

You might also read

Related Articles

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

Sort by

Same author

Author Correction: Photothermal effects control ultrafast charge transport in titanium carbide MXenes.

Nature communications·2026

Same author

Valence-State-Dependent Surface Lattice Oxygen in CeO<sub>2</sub>‑Modified VPO Catalysts: Elucidating the Mechanism of <i>n</i>‑Butane Selective Oxidation to Maleic Anhydride.

JACS Au·2026

Same author

On-Water Surface Synthesis of 2D Conjugated Metal-Organic Framework Films With Controllable Layer Orientation Enabling High-Performance Chemiresistive Sensing.

Advanced materials (Deerfield Beach, Fla.)·2026

Same author

Toothpastes containing potassium nitrate alone versus potassium nitrate combined with aluminum lactate in reducing dentin hypersensitivity: a randomized controlled trial.

BDJ open·2026

Same author

Ultranarrow nanochannels in a staggered two-dimensional polymer membrane enhance electric double-layer coverage for osmotic energy harvesting.

Nature communications·2026

Same author

Hot exciton dissociation in graphene nanoribbons.

Nature communications·2026

Search research articles

Related Experiment Video

Updated: Feb 12, 2026

Detection of Viruses from Bioaerosols Using Anion Exchange Resin

Detection of Viruses from Bioaerosols Using Anion Exchange Resin

Published on: August 22, 2018

Self-Activating, Capacitive Anion Intercalation Enables High-Power Graphite Cathodes.

Gang Wang^1,2, Minghao Yu¹, Jungang Wang³

¹Department of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden (CFAED), Technische Universität Dresden, 01062, Dresden, Germany.

Advanced Materials (Deerfield Beach, Fla.)

|March 31, 2018

Summary

Researchers developed high-power battery cathodes using inexpensive graphite. This novel approach achieves high energy density and long cycle life, offering a scalable alternative to nanoengineered materials for electric transportation and grid storage.

Keywords:

Al-ion batteries anion intercalation dual-ion batteries graphite cathodes intercalation pseudocapacitance

More Related Videos

Author Spotlight: Innovative Techniques for ROS Detection and Implications for Platelet Research

Author Spotlight: Innovative Techniques for ROS Detection and Implications for Platelet Research

Published on: March 29, 2024

Dynamic Multiparameter Platelet Function Assessment Using a Capacitive Biosensor

Dynamic Multiparameter Platelet Function Assessment Using a Capacitive Biosensor

Published on: May 2, 2025

Related Experiment Videos

Last Updated: Feb 12, 2026

Detection of Viruses from Bioaerosols Using Anion Exchange Resin

Detection of Viruses from Bioaerosols Using Anion Exchange Resin

Published on: August 22, 2018

Author Spotlight: Innovative Techniques for ROS Detection and Implications for Platelet Research

Author Spotlight: Innovative Techniques for ROS Detection and Implications for Platelet Research

Published on: March 29, 2024

Dynamic Multiparameter Platelet Function Assessment Using a Capacitive Biosensor

Dynamic Multiparameter Platelet Function Assessment Using a Capacitive Biosensor

Published on: May 2, 2025

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

High-power cathodes are essential for next-generation batteries but often rely on costly and difficult-to-scale nanoengineering.
Existing graphite applications in batteries primarily focus on anode materials.

Purpose of the Study:

To explore the potential of bulk graphite as an active cathode material for high-power batteries.
To overcome the challenges associated with graphite's volume expansion during electrochemical cycling.
To investigate the charge storage mechanism in graphite cathodes.

Main Methods:

Utilizing a robust alginate binder to mitigate graphite cathode disintegration.
Employing electrochemical analysis to study graphite's intrinsic behavior and charge storage kinetics.
Characterizing the anion intercalation mechanism in graphite.

Main Results:

Achieved ultrahigh power capability (42.9 kW kg^-1) at high energy density (>300 Wh kg^-1).
Demonstrated exceptional cycling stability with over 10,000 cycles.
Discovered a novel self-activating, capacitive anion intercalation process in graphite.

Conclusions:

Graphite can serve as an intrinsic intercalation-pseudocapacitance cathode material.
This finding reveals a kinetic distinction between anion and cation intercalation in graphite.
The study paves the way for developing new high-power energy storage devices using abundant graphite.