Volume 136, Issue 31 e202406693
Forschungsartikel

Integrated Design for Discrete Sulfur@Polymer Nanoreactor with Tandem Connection as Lithium–Sulfur Battery Cathodes

Bin Wang

Bin Wang

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

These authors contributed equally to this work.

Contribution: Conceptualization (lead), Data curation (equal), ​Investigation (lead), Writing - original draft (lead)

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Yu Wang

Yu Wang

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

These authors contributed equally to this work.

Contribution: Conceptualization (lead), Data curation (lead), ​Investigation (lead), Methodology (lead), Visualization (equal), Writing - original draft (lead)

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Yudong Lan

Yudong Lan

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

Contribution: Data curation (supporting), Software (equal), Visualization (lead)

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Guiling Lu

Guiling Lu

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

Contribution: Project administration (lead), Software (equal)

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Ling Liu

Ling Liu

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

Contribution: Data curation (supporting), Software (equal), Visualization (lead)

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Tao Tang

Tao Tang

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

Contribution: Resources (equal), Supervision (equal), Writing - review & editing (equal)

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Ming Li

Ming Li

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

Contribution: Supervision (equal), Writing - review & editing (equal)

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Yong Cheng

Corresponding Author

Yong Cheng

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

Contribution: Data curation (supporting), Resources (equal), Supervision (equal), Writing - review & editing (equal)

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Jianrong Xiao

Corresponding Author

Jianrong Xiao

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

Contribution: Formal analysis (equal), Supervision (equal), Writing - review & editing (equal)

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Xinyu Li

Corresponding Author

Xinyu Li

College of Physics and Electronic Information Engineering & Key Laboratory of Low-dimensional Structural Physics and Application, Education Department of Guangxi Zhuang Autonomous Region, Guilin University of Technology, Guilin, 541004 China

Contribution: Formal analysis (lead), Validation (lead), Writing - review & editing (lead)

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First published: 23 May 2024
Citations: 1

Abstract

Apart from electrode material modification, architecture design and optimization are important approaches for improving lithium–sulfur battery performance. Herein, an integrated structure with tandem connection is constructed by confining nanosulfur (NS) in conductive poly(3,4-ethylenedioxythiophene) (PEDOT) reaction chambers, forming an interface of discrete independent nanoreactor units bonded onto carbon nanotubes (noted as CNT/NS@PEDOT). The unique spatial confinement and concentration gradients of sulfur@PEDOT nanoreactors (SP-NRs) can promote reaction kinetics while facilitating rapid polysulfide transformation and minimizing dissolution and diffusion losses. Meanwhile, overall ultrahigh energy input and output are achieved through tandem connection with carbon nanotubes, isolation with PEDOT coating, and synergistic multiplicative effects among SP-NRs. As a result, it delivers a high initial discharge capacity of 1246 mAh g−1 at 0.1 C and 918 mAh g−1 at 1 C, the low capacity decay rate per lap of 0.011 % is achieved at a current density of 1 C after 1000 cycles. This research emphasizes the innovative structural design to provide a fresh trajectory for the further advancement of high-performance energy storage devices.

Conflict of interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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