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Related Concept Videos

Energy Stored In A Coaxial Cable01:31

Energy Stored In A Coaxial Cable

A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field inside...
Energy Stored in Capacitors01:10

Energy Stored in Capacitors

A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
Energy Stored in a Capacitor01:12

Energy Stored in a Capacitor

When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential energy is released as kinetic energy of the arrow. A capacitor works on the same principle in which the work done is saved as electric potential energy. The potential energy (UC) could be calculated by measuring the work done (W) to charge the capacitor.
Energy Stored in Inductors01:16

Energy Stored in Inductors

An inductor is ingeniously crafted to accumulate energy within its magnetic field. This field is a direct result of the current that meanders through its coiled structure. When this current maintains a steady state, there is no detectable voltage across the inductor, prompting it to mimic the behavior of a short circuit when faced with direct current.
In terms of gauging the energy stored within an inductor, it is equivalent to the integral of the power delivered at every individual moment, all...

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Related Experiment Video

Updated: Jul 16, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
08:07

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Coaxial One-Dimensional Nanowires: Artificial Interface Engineering for Next-Generation Energy Storage.

Qin Su1, Juan Ji1, Weixiao Wang1

  • 1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, People's Republic of China.

Small (Weinheim an Der Bergstrasse, Germany)
|July 15, 2026
PubMed
Summary

Coaxial nanowires offer enhanced electrochemical energy storage by combining core-shell structures. This design overcomes single-component limitations, improving conductivity and stability for advanced batteries and supercapacitors.

Keywords:
coaxial nanowirescore–shell nanostructureselectrochemical energy storagefabrication technologyinterface engineering

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Single-component nanowires exhibit high aspect ratios for carrier transport but struggle with simultaneous electronic/ionic conductivity and structural integrity.
  • Electrochemical energy storage systems require materials with efficient charge transport and mechanical stability.

Purpose of the Study:

  • To provide a comprehensive review of coaxial nanowires for electrochemical energy storage.
  • To analyze the advantages of coaxial nanostructures over single-component nanowires.
  • To discuss challenges and future perspectives for coaxial nanowire applications.

Main Methods:

  • Review of recent advances in coaxial nanowire fabrication and characterization.
  • Analysis of applications in various battery types (Li-ion, Na-ion, Li-S, metal-air, multivalent-ion) and supercapacitors.
  • Discussion of structure-property relationships and performance enhancement.

Main Results:

  • Coaxial nanowire architectures effectively address limitations of single-component nanowires by improving electron and ion transport.
  • Synergistic core-shell structures enhance interfacial stability and alleviate volumetric fluctuations.
  • Coaxial nanowires show promise across a wide range of electrochemical energy storage devices.

Conclusions:

  • Coaxial nanowires represent a versatile platform for next-generation energy storage due to their unique structural benefits.
  • Further research is needed to overcome remaining obstacles in their development and deployment.
  • Rational design of coaxial nanostructures is crucial for optimizing performance in advanced energy storage applications.