NEO Battery Materials Ltd., a developer of low-cost silicon anode materials for lithium-ion batteries, has unveiled its latest product, the NBMSiDE® P-300N. This advanced silicon anode prototype is notable for achieving the highest capacity retention to date and is designed for mass production, balancing enhanced battery stability with cost-effective manufacturing.
The P-300N builds on the foundation of the original P-300 silicon anode introduced in January. Through refined synthesis processes and improved material characteristics, NEO’s research and development team has successfully minimized initial capacity loss while maintaining affordability. A key metric for the P-300N is its 50-cycle average Coulombic Efficiency (CE) of over 99.8%, a significant improvement over previous models. This high CE is critical for ensuring superior capacity retention in long-term battery performance tests, extending beyond 300, 500, and up to 1,000+ cycles.
NEO’s flexible synthesis method has enabled the production of two distinct variations of the P-300N to meet different industry requirements:
- High-Capacity Variant: Offers an initial capacity exceeding 2,000 mAh/g with an average CE above 99.5%, maintaining performance over more than 50 cycles.
- High-Stability Variant: Balances cycle performance and capacity, achieving an average CE of over 99.8% with an initial capacity of approximately 2,000 mAh/g.
The P-300N is positioned as a cost-effective solution suitable for a wide range of applications, including electronics, power tools, drones/UAVs, electric vehicles (EVs), and energy storage systems. Its ability to support ultra-fast charging and discharging while providing long-term stability makes it an attractive option for these sectors.
Looking ahead, NEO is conducting extensive full cell tests with the P-300N, focusing on long-term performance across 300+ cycles. These tests involve combining the P-300N with various cathode chemistries and graphite to create high-capacity silicon-graphite anodes. Upon successful completion of internal targets, NEO plans to announce further technical results.
Scale-up efforts for the P-300N commenced in February, with the prototype ready for mass-producibility testing. A significant advantage of the P-300N is its compatibility with existing production equipment, facilitating a seamless transition to large-scale manufacturing. NEO aims to produce near-commercial battery cells with capacities ranging from 3 to 5 Ah in collaboration with global partners in the battery value chain.
The technical enhancements in the P-300N include optimized particle size distribution, shape control, and composite layer coatings that protect the silicon anode from direct electrolyte contact. Additionally, a reinforced polymer coating network helps dissipate mechanical stress without compromising electrical conductivity.
NEO Battery Materials Ltd. is committed to advancing silicon anode technologies for lithium-ion batteries, supporting the growth of electric vehicles, electronics, and energy storage systems through innovative and cost-effective solutions.
Source: NEO Battery Materials
