Low-cost micron-Si Anodes for Non-flammable, High Energy-Density Lithium-ion Batteries Navy SBIR FY2016.1 Sol No.: Navy SBIR FY2016.1 Topic No.: N161-012 Topic Title: Low-cost micron-Si Anodes for Non-flammable, High Energy-Density Lithium-ion Batteries Proposal No.: N161-012-0130 Firm: SIILION, INC. 2150 W. 6TH AVE STE N Broomfield, Colorado 80020 Contact: Tyler Evans Phone: (303) 905-7368 Web Site: http://www.siilion.com Abstract: Under the proposed Department of the Navy Small Business Innovation Research Phase I program, SiILion, Inc. will leverage its experience developing the micron-Si/mRTIL/NMC[622] and micron-Si/mRTIL/NMC[811] systems to increase cell performance in terms of high rate cycling, wide temperature range capacity retention, and extended cycle-life, which is typically limited by the Si anode's intrinsic characteristics. SiILion proposes to incorporate small amounts of conventional graphite active materials into micron-Si based anode composites to enable high rate stability. The final product of the proposed Phase I project will be a 50+ mAh pouch-cell comprising a high-voltage nickel-rich oxide cathode, a high-capacity micron-Si based anode composite, and a non-flammable RTIL-based electrolyte. If successful in significantly increasing the micron-Si based anode's rate capabilities to improve overall performance and capacity retention for an extended cycle-life, the proposed technology will be able to achieve at least a 90% increase in specific energy relative to state-of-the-art across a wide range of temperatures and rate protocols, meeting Navy's current high power aircraft operational, electrical, and environmental requirements. Benefits: If successful, it is anticipated that the proposed technology will result in a micron-Si-Gr/mRTIL/NMC[811] full-cell battery capable of providing an energy density of about 900 Wh/L (400 Wh/kg) at a wide range of temperatures with the added benefit of a non-flammable RTIL electrolyte. As such, the proposed SBIR Phase I goal and Phase I Option program would "tee-up" a Phase II development effort geared towards the demonstration of the manufacturing of a commercial prototype of the technology. Return