High-Performance Dendrite-Free Lithium Textile Anodes Using Interfacial Interaction-Mediated Ultrathin Metal Organic...

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Lithium metal batteries offer high energy density but face safety challenges due to lithium dendrite growth.
• Developing stable and high-capacity lithium metal anodes is crucial for next-generation batteries.

Purpose of the Study:

• To introduce a high-performance, dendrite-free lithium metal textile anode.
• To enhance the stability and capacity of lithium metal batteries through interfacial engineering.

Main Methods:

• Fabrication of ultrathin metal-organic framework (MOF) multilayers on polyester textiles via layer-by-layer assembly of silver ions and trithiocyanuric acid.
• In situ reduction of silver ions to silver nanoparticles for improved lithium nucleation.
• Formation of a Li3N-rich solid electrolyte interphase layer.

Main Results:

• Achieved a uniform, ultrathin MOF multilayer (<40 nm) on a textile anode.
• Demonstrated in situ formation of highly lithiophilic silver nanoparticles, lowering the lithium nucleation energy barrier.
• Exhibited exceptional stability over 2000 hours in a symmetric cell and ≈96.5% capacity retention after 1300 cycles in a full cell.

Conclusions:

• The developed MOF multilayer approach effectively suppresses lithium dendrite growth.
• Interfacial interactions and ultrathin lithiophilic layers are critical for advancing lithium metal battery performance.
• This strategy offers a promising pathway for developing safer and more stable high-energy-density batteries.