Gravure Printing of Graphite-Based Anodes for Lithium-Ion Printed Batteries

Area of Science:

• Materials Science
• Electrochemistry
• Manufacturing Engineering

Background:

• Printed batteries are gaining interest for flexible electronics.
• Gravure printing has shown potential for fabricating high-quality lithium-ion battery (LiB) electrodes.
• Graphite is a common, low-cost anode material for LiBs.

Purpose of the Study:

• To investigate gravure printing for mass production of graphite-based LiB anodes.
• To explore the impact of process parameters on microstructure and performance.
• To optimize printed anode performance for energy applications.

Main Methods:

• Utilized industrial gravure printing for electrode fabrication.
• Employed ball-milling to reduce graphite nanoparticle size.
• Investigated ink formulation and multilayer printing techniques.
• Analyzed layer microstructure and anode performance.

Main Results:

• Decreasing nanoparticle size improved material distribution and anode performance.
• Multilayer printing with increased mass loading further enhanced performance.
• Optimized ink parameters led to denser microstructures and near-theoretical capacity.
• Gravure printing demonstrated suitability for mass-producing high-performance graphite anodes.

Conclusions:

• Gravure printing is a viable method for the mass production of LiB anodes.
• Process parameter optimization is key to achieving high-performance printed electrodes.
• This technique supports the development of advanced printed batteries and energy storage components.