Dr. Joseph E. Doninger, MSc, BSc, is Focus Graphite’s Director of Manufacturing and Technology. Dr. Doninger is an internationally recognized graphite processing expert and an inventor of 6 patents and an author of over 29 technical papers and presentations related to graphite and minerals processing and the use of graphite in energy storage systems.
Since joining Focus Graphite in 2012, Dr. Doninger’s work has been integral to the company’s research and development program. His work explores ways to optimize the suitability of the high-quality flake graphite found at Focus’ properties for various battery and energy storage applications.
To read details of Dr. Doninger’s publications and technical presentations, please click on the links below.
Cycling Characteristics of Silicon Enhanced and Boronated Lac Knife Natural Flake Graphite from Quebec, Canada in Lithium Ion Batteries
36th International Battery Seminar – Fort Lauderdale, FL – March 26, 2019
The first half of this presentation covers the development of the different grades of Lac Knife flotation, purified and spherical graphites and reviewed the results of coin cell tests which showed that the Lac Knife graphite outperformed synthetic graphite over a wide range of cycle times in Li Ion battery formulations. Additional coin cell data is presented that shows that the silicon enhanced Lac Knife graphite Lithium Ion battery formulations exhibited highly stable cycling performance. The initial work conducted on treating the Lac Knife graphite with boron is very encouraging and showed excellent potential for the use of boronated graphite in high rate applications.