STTR Phase II: High Energy and Power Density Supercapacitors Utilizing Electrodes Comprising Nanofibrous Carbon-Carbon Composites

STTR 第二阶段：使用包含纳米纤维碳-碳复合材料的电极的高能量和功率密度超级电容器

• 批准号: 1127564
• 负责人: Lissa King Magel
• 金额: $ 50万
• 依托单位: SOLARNO
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-11-01 至 2014-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1127564&HistoricalAwards=false
• 关键词: STTR; Phase; II; Energy; Power

This Small Business Technology Transfer (STTR) Phase II project will optimize the technology developed in Phase I for the fabrication of composite carbon nanofibers incorporating mesoporous high surface area carbon as an electrode material for supercapacitors utilizing ionic liquid electrolytes. The Phase I results showed that test devices incorporating our patent-pending carbon fibers have surpassed the performance of commercial supercapacitors and can provide energy densities approaching that of lead acid batteries with superior gravimetric power density. The technology is to be further developed and optimized using lower cost polymer precursors and carbon templates. Achievement of our Phase II goals of 30 Wh/kg at 10 kW/kg (packaged) with consistent performance up to 5x10^5 cycles means that this technology can become the material of choice for application to high-energy, high-power energy storage systems. The broader impact/commercial potential of this project lies in greatly expanding the market for supercapacitors for existing products and enabling new technologies, especially in those areas requiring energy densities that are higher than those provided by current supercapacitors. Such supercapacitors will be well suited for application to the Hybrid Electric Vehicle (HEV) market, including rapid charging stations; frequency regulation for the electric grid; and load leveling for renewable energy sources. Direct societal benefits will come from improving the viability of HEV due to reductions in fossil fuel consumption, improvements in power grid reliability, reducing costs for renewable energy production, and in replacing lead acid batteries. The world demand for supercapacitors is expected to reach $1.2 billion by 2015.

这个小企业技术转让（STTR）第二阶段项目将优化第一阶段开发的技术，用于制造复合碳纳米纤维，其中含有介孔高表面积碳作为利用离子液体电解质的超级电容器的电极材料。第一阶段的结果表明，采用我们正在申请专利的碳纤维的测试设备已经超过了商业超级电容器的性能，并且可以提供接近铅酸电池的能量密度，具有上级重量功率密度。该技术将使用成本较低的聚合物前体和碳模板进行进一步开发和优化。我们的第二阶段目标是在10 kW/kg（包装）下达到30 Wh/kg，并在高达5x10^5次循环中保持一致的性能，这意味着该技术可以成为高能量，高功率储能系统应用的首选材料。该项目更广泛的影响/商业潜力在于极大地扩大现有产品的超级电容器市场，并实现新技术，特别是在那些需要比当前超级电容器提供的能量密度更高的领域。这种超级电容器将非常适合应用于混合动力汽车（HEV）市场，包括快速充电站;电网频率调节;以及可再生能源的负载均衡。直接的社会效益将来自于提高混合动力汽车的可行性，因为减少了化石燃料的消耗，提高了电网的可靠性，降低了可再生能源生产的成本，并取代了铅酸电池。预计到2015年，世界对超级电容器的需求将达到12亿美元。