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Related Experiment Video

Updated: Mar 10, 2026

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Oxygen-Vacancy-Engineered Biomimetic Interphase for Dendrite-Free Lithium-Metal Anodes.

Yun Zhao1, Haozhe Feng1, Wenjin Shen1

  • 1School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, China.

Nano Letters
|March 9, 2026
PubMed
Summary
This summary is machine-generated.

Researchers developed a biomimetic artificial solid electrolyte interphase to prevent lithium dendrite growth in lithium-metal batteries (LMBs). This interface ensures stable lithium deposition, paving the way for safer and more efficient LMBs.

Keywords:
biomimetic artificial solid electrolyte interphasedendrite-free lithium-metal anodesion flux regulationoxygen defectpatterned Li0.33La0.56TiO3 nanofiber

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Battery Technology

Background:

  • Commercialization of lithium-metal batteries (LMBs) is limited by lithium dendrite formation and unstable interfaces.
  • These issues compromise battery safety and cycle life, hindering practical application.

Purpose of the Study:

  • To design a biomimetic artificial solid electrolyte interphase for stable lithium deposition and dendrite suppression in LMBs.
  • To enhance interfacial stability and lithium-ion transport kinetics for high-performance LMBs.

Main Methods:

  • Fabrication of a patterned Li0.33La0.56TiO3 (PL) nanofiber membrane via electrospinning and calcination.
  • In situ reduction to create oxygen vacancies in the PL lattice, forming black PL (BPL) for improved Li+ kinetics.
  • Assembly and testing of BPL@Li symmetric cells and BPL@Li||LiFePO4 full cells.

Main Results:

  • The patterned PL membrane architecture homogenizes Li+ flux and regulates current density, enabling uniform Li deposition and suppressing dendrites.
  • Oxygen vacancies in BPL significantly enhance Li+ transport kinetics by reducing migration energy barriers.
  • BPL@Li symmetric cells achieved over 1400 h of stable cycling.
  • BPL@Li||LiFePO4 full cells retained 85% capacity after 200 cycles at 1 C.

Conclusions:

  • The developed biomimetic artificial solid electrolyte interphase effectively addresses dendrite growth and interfacial instability in LMBs.
  • This strategy offers a scalable and multifunctional approach for engineering interfaces in high-performance lithium-metal batteries.
  • The findings contribute to advancing the development of safer and more durable next-generation batteries.