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Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells

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Carbon nanotubes for flexible batteries: recent progress and future perspective.

Sheng Zhu¹, Jian Sheng¹, Yuan Chen²

¹Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.

National Science Review

|October 25, 2021

Summary

Flexible batteries using carbon nanotubes (CNTs) offer robust performance under deformation for portable electronics. This review highlights CNT structures and their role in advancing flexible battery technology.

Keywords:

carbon nanotube electrochemical energy storage flexible battery wearable electronics

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Last Updated: Oct 15, 2025

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Area of Science:

Materials Science
Energy Storage
Nanotechnology

Background:

Flexible batteries are crucial for portable and wearable electronics due to their ability to withstand mechanical stress.
Carbon nanotubes (CNTs) possess unique 1D nanostructures and excellent mechanical/electrical properties, making them ideal for flexible battery components.

Purpose of the Study:

To review the recent advancements in applying carbon nanotubes (CNTs) for flexible battery development.
To focus on diverse structural designs of CNT-based materials and their impact on battery performance.

Main Methods:

Literature review of studies on carbon nanotubes in flexible batteries.
Analysis of various CNT-based material architectures (fibers, films, sponges).
Categorization of applications from closed-system to open-system batteries.

Main Results:

CNTs serve as superior building blocks for electrodes and current collectors in flexible batteries.
Different CNT structures (e.g., CNT sponges) enhance mechanical flexibility and electrochemical performance.
Progress has been made in both closed-system and open-system flexible battery designs utilizing CNTs.

Conclusions:

Carbon nanotubes are pivotal in creating high-performance flexible batteries.
Further research into CNT structural designs is needed to overcome challenges for practical applications.
The review provides perspectives on future directions for CNT-based flexible batteries.