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Westwater Resources Announces Excellent Results from Independent Tests on Spherical Purified Graphite (SPG) from the Coosa Graphite Project
CENTENNIAL, Colo.--(BUSINESS WIRE)--Westwater Resources, Inc. (“Westwater,” or the “Company”) (Nasdaq: WWR), an energy materials development company, is pleased
About this update from Westwater Resources, Inc.
[{"type":"text","content":"CENTENNIAL, Colo.--(BUSINESS WIRE)--Westwater Resources, Inc. (“Westwater,” or the “Company”) (Nasdaq: WWR), an energy materials development company, is pleased to provide the independent test results from long-term cycling data conducted on uncoated, spherical purified graphite (SPG) from the Company’s Coosa Graphite Project. Christopher M. Jones, President and CEO of Westwater Resources, stated, “We are pleased with the performance of our spherical graphite materials from the Coosa Graphite Project located in Alabama. In short, we have produced products for independent testing, these products have performed as designed, and this milestone achievement demonstrates some of the potential of our flagship Coosa Graphite Project. Long-term cycling data is useful for battery manufacturers and provides insights into the parameters that can help us continually improve the performance of our graphite products including our coated spherical purified graphite, thus developing a broader customer base.” HIGHLIGHTS “Near theoretical” reversible capacity was achieved as 370.11 mAh/g on the first cycle. Purification, micronization, spheronization and sizing was performed on the natural flake graphite from our Coosa Graphite Project utilizing the Company’s proprietary process. The purity level achieved was 99.95 wt%. Optimization on electrode formulation was achieved to extend the cycling performance. Testing under prolonged cycling conditions showed that SPG from the Coosa Graphite Project demonstrated stable performance over 150 cycles. TEST SUMMARY SPG grades were formulated into battery grade coatings and cast on copper foil. Industry standard CR2016 coin cells were assembled and tested using graphite as the anode versus Li/Li+ counter electrode assembly (half cell). Low temperature LP81 electrolyte was utilized in the cells. The upper and lower voltage limits during cycling were 0.01 V and 2 V vs Li/Li+. Charging and discharging current rate was C/20. The properties of SPG from the Coosa Graphite Project are presented in the Table below. PARAMETER VALUE (UNITS) TRADE NAME ULTRA-SPG LOSS ON IGNITION > 99.95 (wt%) ASH% ...