About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Energy Materials for Sustainable Development
|
Presentation Title |
Low-Temperature Production of Battery Grade Graphite from Coal with Recovery and Reuse of the Catalyst |
Author(s) |
Ki-Joong Kim, Viet Hung Pham, Ngoc Tien Huynh, Yuan Gao, YunYang Lee, Congjun Wang, Christopher Matranga |
On-Site Speaker (Planned) |
Ki-Joong Kim |
Abstract Scope |
Synthetic graphite is made predominantly from a petroleum-derived needle coke using the Acheson method. This involves heating the needle coke at elevated temperatures of ~ 3000 °C for more than 7 days. High-temperature heating is the most technically challenging, expensive, and energy-intensive aspect of graphite manufacturing. We will present a strategy for synthesizing high-quality battery-grade graphite powder from coal using a low-temperature catalytic graphitization process. The use of a catalyst drops the processing temperatures to 1500 °C and processing times to a few hours. The graphite produced with this process has been tested as a battery anode and has been shown to outperform anodes made with commercially sourced graphite materials. We will also present a sustainable method to recover and reuse the catalyst and acid used to retrieve the catalyst. This overcomes a long-standing technical hurdle associated with using catalysts for manufacturing graphite. |