Hierarchical Cu4V2.15O9.38 micro-/nanostructures: a lithium intercalating electrode material.

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Developing advanced electrode materials is crucial for high-performance energy storage devices.
• Hierarchical nanostructures offer unique properties for electrochemical applications.

Purpose of the Study:

• To synthesize and characterize hierarchical Cu4V2.15O9.38 micro-/nanostructures.
• To investigate the electrochemical properties of Cu4V2.15O9.38 as a potential electrode material for primary lithium ion batteries.

Main Methods:

• Facile "forced hydrolysis" method using peroxovanadate and cupric nitrate with urea.
• Characterization of hierarchical architectures assembled from nanosheets and nanoplates.
• Electrochemical performance evaluation, including discharge capacity measurement.

Main Results:

• Hierarchical Cu4V2.15O9.38 micro-/nanostructures (10-20 µm) were successfully synthesized.
• The material is composed of flexible nanosheets and rigid nanoplates.
• A large discharge capacity of 471 mA h g(-1) was achieved above 1.5 V.

Conclusions:

• Cu4V2.15O9.38 exhibits promising electrochemical properties for energy storage.
• The hierarchical structure contributes to its high performance.
• This material is a compelling candidate for primary lithium ion batteries in implantable cardioverter defibrillators.