Eagle Graphite Tests 93.6% Efficiency at Black Crystal Project

Eagle Graphite Incorporated (TSXV:EGA) announced the results from coin cell testing of graphite from the Black Crystal graphite project located in British Columbia.
As quoted in the press release:

Graphite for lithium-ion (“Li-Ion”) battery anodes requires a series of processing steps following the production of conventional flake graphite concentrate. For these tests, the Company elected to use the finest fraction of flakes available from the Black Crystal project, as graphite fines carry the lowest market value prior to value-added processing. The -100 micron fines were processed in a series of commercial spheronising machines. It should be noted that this equipment requires a minimum of several kilograms of feed, which is a quantity that is not normally available from projects lacking production history. The spheronising machinery reduced the size and shape of the graphite flakes to produce rounded particles averaging 20 microns in diameter, conforming to the most common specifications for lithium ion battery anodes. The spheronised particles were then purified and coated before being made into coin cells for electrochemical testing. The construction of the test cells and subsequent testing were carried out by an experienced independent laboratory.
Key electrochemical results included reversible capacity of 369mAh/g and 93.6% first cycle efficiency. The reversible capacity is a measure of the amount of energy that can be stored in a battery anode. The theoretical limit for graphite is 372mAh/g. Typical Li-Ion battery specifications include reversible capacity exceeding 350mAh/g and first cycle efficiency of 92-94%.

Eagle Graphite President and CEO, Jamie Deith, stated:

The research team has come through for us again, demonstrating that we can achieve good electrochemical results even if we start with flake graphite of relatively low value. These results are a welcome addition to our existing advantages as the only junior graphite company in North America with existing infrastructure, a quarry permit, and a flotation plant already constructed.

Connect with Eagle Graphite Incorporated (TSXV:EGA) to receive an Investor Kit