Invention Reference Number
Oak Ridge National Laboratory has developed a method for fabricating sturdy, electrically conductive pellets used in electrochemical graphitization of carbonaceous materials. This process supports the scalable production of graphite from coal-derived and other carbon-based feedstocks for applications such as lithium-ion battery anodes. By improving pellet structure, stability, and electrical conductivity, this technology enhances the uniformity and reproducibility of electrochemical graphitization—advancing the domestic supply chain for energy-critical materials.
Description
The invention relates to a unique approach for forming and optimizing pellets used in an electrochemical process that transforms amorphous carbon into crystalline graphite. The technology addresses challenges in maintaining electrical contact, thermal stability, and electrolyte infiltration during graphitization. The pellets are composed of carbonaceous materials bound with specialized agents and designed to permit uniform penetration of molten electrolytes. Adjustments in particle size distribution, binder type, and pellet geometry ensure structural integrity under compressive load while promoting consistent electrochemical conversion throughout the pellet volume. This advancement improves scalability and reproducibility of the electrochemical graphitization process, enabling the efficient conversion of carbon feedstocks—including coal waste—into high-performance graphite for energy storage and other applications.
Benefits
- Enhances uniformity and reproducibility of electrochemical graphitization
- Enables scalable and cost-effective graphite production
- Utilizes abundant domestic carbon sources, reducing dependence on imports
- Improves energy efficiency compared to conventional thermal graphitization
Applications and Industries
- Lithium-ion, sodium-ion, and next-generation battery manufacturing
- Energy storage and electrification technologies
- Carbon and graphite materials production
- Utilization of coal byproducts
Contact
To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.
