NEO Battery Materials, a Canadian battery materials technology company focused on developing silicon anode materials for lithium-ion batteries in EVs, electronics, and energy storage systems, has introduced its NBMSiDE P-300N silicon anode product.

The P-300N is a mass-producible prototype that has NEO’s highest capacity retention achieved to date and is optimized to enhance battery stability while maintaining low-cost production. NEO’s R&D refined the synthesis process and material characteristics while maintaining low costs and minimizing initial capacity loss.

The upgraded P-300N incorporates refinements in particle size distribution, shape control and composite layer coating on the silicon particle. The composite layer coating offers enhanced protection against the direct contact of the silicon anode and electrolyte, mitigating capacity loss and improving cycling life. A reinforced polymer coating network helps dissipate mechanical stress without compromising conductivity between silicon particle structures.

NEO said its priority is optimizing the 50-cycle average coulombic efficiency (CE) on the half cell using a 100% pure silicon anode. The P-300N has recorded the highest 50-cycle average CE of over 99.8%. The company is offering two P-300N variations. The high-capacity variant demonstrates initial capacity over 2,000 mAh/g with an average CE of over 99.5% and maintaining performance over 50 cycles. The high-stability variant provides a balance of cycle performance and capacity with an average CE of over 99.8% with approximately 2,000 mAh/g in initial capacity.

The P-300N can be adapted to mass production without modifying existing processing equipment. After completing small-scale optimization, NEO plans to manufacture near-commercial battery cells that have 3-5 Ah capacities in partnership with global battery value chain players.

Source: NEO Battery Materials