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Related Experiment Video

Updated: Jan 20, 2026

Measuring Active and Passive Tameness Separately in Mice
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Reinventing Phosphorus Anodes: Taming Pulverization via Strain-Induced Interfacial Coupling.

Zhuosen Wang1, Mengyuan Ran1, Kun Cui2

  • 1Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450052, China.

Angewandte Chemie (International Ed. in English)
|January 19, 2026
PubMed
Summary

Researchers developed a new strategy using single-walled carbon nanotubes (SWCNTs) to stabilize phosphorus anodes in high-energy batteries. This method utilizes volume expansion to enhance interfacial coupling, improving battery performance and longevity.

Keywords:
Chemomechanical reactionInterfacial couplingLithium‐ion batteriesPhosphorus anodeSWCNTs

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Alloy-type anodes have high theoretical capacity but suffer from volume expansion and particle pulverization, limiting their practical use in batteries.
  • Developing stable and high-performance anodes is crucial for advancing energy storage technologies.

Purpose of the Study:

  • To propose a proactive strategy that transforms the detrimental volume change of alloy anodes into a force for interfacial stabilization.
  • To enhance the performance and cycle life of phosphorus anodes by integrating single-walled carbon nanotubes (SWCNTs).

Main Methods:

  • Utilizing the flexibility of SWCNTs and the volume variation of phosphorus during lithiation to induce tensile strain.
  • Employing operando Raman spectroscopy and density functional theory (DFT) calculations to investigate the chemomechanical coupling mechanism.
  • Fabricating and testing phosphorus anodes with SWCNT incorporation and evaluating full cell performance.

Main Results:

  • The SWCNT integration promoted interfacial coupling and P─C bond formation, stabilizing phosphorus clusters.
  • The phosphorus anode with 1 wt% SWCNT achieved a specific capacity of 1981.6 mAh g-1 at 0.1C and maintained 1301.9 mAh g-1 after 500 cycles at 1C.
  • A full cell (NCM811//BP─SWCNT) demonstrated high energy density (507 Wh kg-1) and capacity retention.

Conclusions:

  • A novel chemomechanical coupling mechanism was identified, effectively stabilizing fractured phosphorus clusters and suppressing dissolution.
  • The developed active stress-utilization design principle offers new perspectives for creating high-energy-density alloy-type anodes.
  • This approach provides a viable strategy for overcoming the limitations of alloy-type anodes in next-generation batteries.