The firm’s low-cost, metallurgical-grade silicon particles of micron-size were able to sustain original specific capacity of 3,000 milliampere hours per gram without major capacity loss The battery test was conducted and validated by a South Korean third-party laboratory NEO Battery Materials Ltd announced that its metallurgical-grade silicon (Si) microparticle anode materials have achieved “exceptional stability” and breakthrough cycling performance with an all-solid-state electrolyte compared to the cells of conventional liquid electrolytes.
The Vancouver-based company focused on battery metals and materials said its low-cost, metallurgical-grade silicon particles of micron-size were able to sustain its original specific capacity of 3,000 milliampere hours per gram (mAh/g) without major capacity loss or performance degradation in the cell.
A sulfide-based solid-state electrolyte, argyrodite, was utilized with a 100% loading of NEO’s silicon microparticle anode materials. The battery test was conducted and validated by a South Korean third-party laboratory.
Metallurgical-grade silicon microparticles are the most promising candidate for next-generation silicon anode materials in electric vehicle and energy storage applications due to the cost-savings that can effectively drive down battery costs (in dollars-per-kilowatt-hour), said the company. On average, the microparticles are 8 to 10 times less expensive than the same nanoparticles. However, its poor performance from the volume expansion issue stands as a substantial hurdle for commercialization.
"NEO, hence, is focusing on the performance improvement of metallurgical-grade silicon microparticles through the company’s proprietary nanocoating technology. Implementing silicon microparticles into the anode material will be a complete game-changer for the lithium-ion battery industry,” said JH Park, who is the director and […]