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https://www.dal.ca/research/ResearchIntheNews/mediareleases.html

https://www.dal.ca/research/ResearchIntheNews/mediareleases.html


Media Release: Dalhousie researchers look to revolutionize the way batteries are made

Wednesday, May 13, 2020 (Halifax, NS) - Researchers at Dalhousie University have discovered new methods of making battery materials that could revolutionize the industry.

...”However, the current methods of producing these particles can be wasteful and limited in their composition.

A typical production facility making 6,500 kg of lithium manganese nickel cobalt oxides per day can consume 99,000L/day of water and produce fine particles that become waste material.

“Natural battery graphite production is also highly wasteful, with 40-70% of the mined graphite being typically lost as waste.”

Dr. Mark Obrovac, a Professor in Dalhousie University’s Department of Chemistry and the NSERC/Novonix Industrial Research Chair in Metal Ion Batteries, along with his students has developed a method for synthesizing highly engineering particles by consolidating fine, even submicron particles into particles that are tens of microns.

This innovative process, called dry particle microgranulation (or DPMG), allows for the type of precise control of particle internal composition variation, shape, and morphology that is not possible by previous methods.

By using this method, Dr. Obrovac and his team are able to show that Li-ion battery graphite and metal oxide particles can be made at 100% yield with no water or waste.

It is also believed that this process could be used in many fields to reduce the cost and environmental impact of particle synthesis and enable the synthesis in bulk of new, highly engineered particles.”