Optimization of graphite powder shape and trace metal characteristics

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Quality electrode materials are a key factor in the development and production of leading-edge lithium ionbatteries. Elcora is a vertically integrated graphite & graphene company. The company mines, processes, andrefines graphite, and is targeting high-end graphite markets such as Li-ion batteries. Currently, Elcora processesand spheronizes graphite powder for the Li-ion anode market. The industry prefers spherically shaped graphiteparticles to achieve the highest battery performance.This work explores the optimization of Elcora's current spheronization process and trace contaminantminimization efforts. Through collaborative development of a high-speed microscopy method for rapiddetermination of particle shape characteristics, trace contaminant analysis, and systematic processmodifications, this work intends to provide a measurable improvement in Elcora Advanced Materials divisionin Bedford, Nova Scotia. Key areas being explored are digital visual analytics suitable for high-flowmicroscopy applications with flow cell development capable of rotating particles within the flow field toelucidate information on their 3-D shape, as well as process optimization of spheronizing units used withinElcora's operations.This initiative is intended to facilitate expansion efforts in Canada-based production of value-added products,and is anticipated to contribute to development plans for a commercial scale processing facility in Nova Scotia.