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Related Experiment Video

Updated: Jul 8, 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

Two-Dimensional VSe2@Polypyrrole Heterostructure Enables Stable High-Rate Lithium-Sulfur Batteries.

Yunfeng Lu1, Ruikang Zuo1, Peng Zeng1,2

  • 1National Base for International Science & Technology Cooperation, National Local Joint Engineering Laboratory for Key Materials of New Energy Storage Battery, Hunan Province Key Laboratory of Electrochemical Energy Storage & Conversion, School of Chemistry, Xiangtan University, Xiangtan 411105, China.

ACS Applied Materials & Interfaces
|July 7, 2026
PubMed
Summary

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Suppressing Polysulfide Shuttling and Enhancing Reaction Kinetics of Lithium-Sulfur Batteries through the Architecture of a 3D TiO<sub>2</sub>@CMK-3 Composite Cathode.

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Interfacial electric field modulation of 1D/2D FeCo<sub>2</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub> heterostructures for lithium sulfur batteries over wide temperatures.

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Dual regulation of interface and bulk phase by a multifunctional additive for constructing stable zinc-sulfur batteries.

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NiCo<sub>2</sub>O<sub>4</sub>@Porous Graphene Aerogel: Synergistic Adsorption-Catalysis for Enhancing Polysulfide Conversion.

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Synergistic catalysis of VN quantum dots and S/N heteroatoms enabling fast reaction kinetics for lithium-sulfur batteries.

Chemical communications (Cambridge, England)·2025
This summary is machine-generated.

This study introduces a novel VSe2@PPy nanocomposite sulfur host for high-performance lithium-sulfur (Li-S) batteries. This advanced material significantly improves conductivity and polysulfide management, enabling remarkable cycling stability.

Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Lithium-sulfur (Li-S) batteries offer high energy density but face challenges.
  • Poor sulfur conductivity and the polysulfide shuttle effect limit practical applications.

Purpose of the Study:

  • To develop an advanced sulfur host for high-performance Li-S battery cathodes.
  • To address conductivity and polysulfide shuttle issues using a novel nanocomposite material.

Main Methods:

  • Fabrication of a two-dimensional polypyrrole-coated VSe2 (VSe2@PPy) nanocomposite.
  • Integration of VSe2@PPy as a sulfur host in Li-S battery cathodes.
  • Electrochemical performance testing, including capacity, cycling stability, and performance under various conditions.
Keywords:
advanced sulfur hostconversion of polysulfideshigh catalytic activitylithium−sulfur batteriestwo-dimensional nanocomposite

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Last Updated: Jul 8, 2026

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Main Results:

  • The VSe2@PPy/S cathode exhibited a high initial capacity of 1243 mAh g-1 at 0.5 C.
  • Exceptional cycling stability was achieved with a decay rate of 0.06% per cycle over 1000 cycles at 3 C.
  • Good performance was maintained under high sulfur loading and a wide temperature range (-25 to 55 °C).

Conclusions:

  • The VSe2@PPy nanocomposite effectively enhances Li-S battery performance by improving conductivity and polysulfide management.
  • The synergistic effects of VSe2 and PPy create an efficient pathway for polysulfide conversion and charge transport.
  • This material shows great promise for next-generation high-energy-density storage systems.