High temperature thermal process solutions developed by Harper International Corporation are enabling production at several silicon anode battery material companies in 2024. Silicon anode material offers significantly higher specific capacity than traditional graphite anode materials enabling higher power density, faster charge times and smaller carbon footprint than current batteries.

Source: Harper International CorporationSource: Harper International Corporation

Harper has entered engineering design and equipment supply contracts for pilot and production scale equipment with its U.S.-based customers, many of whom are funded in part by grants from the U.S. Department of Energy. The Harper technology includes indirect electrically heated, continuous rotary, vertical and horizontal conveyor furnace systems for each customer’s unique thermochemical processes.

The Harper furnaces include tight control of process atmosphere enabling safe and reliable continuous operation, are rated for temperatures between 800˚ C and 1,800˚ C and will have capacity up to 1,000 metric tons per year. Beyond the pilot-scale equipment projects, Harper is actively engineering the next generation of equipment solutions for these customers whose commercial scale plants will require capacity of 20,000 to 40,000 metric tons per year for the electric vehicle (EV) market.

“We are delighted to see Harper’s breadth of technology deployed in support of the world’s transition to clean energy. These thermal processing solutions are derived from Harper’s significant experience in providing indirect, electrically heated furnace systems to a wide array of advanced materials industries. These designs will be custom-engineered to provide our customers optimum process integrity while minimizing energy consumption as they scale-up to higher capacities,” said Harper vice president Paul Elwell.

To contact the author of this article, email GlobalSpeceditors@globalspec.com