STTR Phase I: High Energy Density Non-aqueous Pseudocapacitors

STTR 第一阶段：高能量密度非水赝电容器

• 批准号: 1448323
• 负责人: Paul Rasmussen
• 金额: $ 22.5万
• 依托单位: Vinazene Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-01-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1448323&HistoricalAwards=false
• 关键词: STTR; Phase; Energy; Density; Non

The broader impact/commercial potential of this Small Business Technology Transfer Research Phase I project is development of novel organic materials necessary to produce high energy density, low cost pseudocapacitors. The active material will be a single substance for both oxidation and reduction. This important property reduces cost and fabrication complexity. The synthetic route to the active material is short, and makes use of commodity reagents. Pseudocapacitors capable of delivering more than 10 Watt hours per kilogram at 5,000 Watts per kilogram will have significant impact on vehicle performance, especially for the heavy vehicles that operate at high power levels getting started, for intermittent renewable sources, and uninterruptible power supplies. The low cost and high performance in these new pseudocapacitors will have important commercial impact in the US manufacturing arena because their fabrication is readily adapted to the existing infrastructure designed for other organic electrical devices.This project is based on organic compounds with unprecedented voltage and redox stability. Because this active material can be both oxidized and reduced as a single substance, it has the unique advantage of not needing an asymmetric design. Asymmetric or hybrid design is used in capacitors to increase the voltage window when the redox activity is otherwise confined to a relatively narrow band within the voltage window of the solvent and electrolyte. This system has a large voltage separation between the oxidation and reduction half reactions without the need for balancing mass, and without fabrication of two different electrodes. The single substance advantage combines the best properties of the asymmetric design within a symmetric cell. The research group has prepared materials with high cycle stability and open circuit potentials of 2.8 volts. Our goal will be to demonstrate that the use of our novel organic electroactive materials can significantly increase capacitance of high surface area double layer capacitors.

这个小型企业技术转移研究阶段I项目的更广泛的影响/商业潜力是开发产生高能量密度，低成本伪球员所需的新型有机材料。活性材料将是氧化和还原的单一物质。这一重要特性降低了成本和制造的复杂性。进入活动材料的合成途径很短，并利用商品试剂。能够以每公斤5,000瓦的每公斤5,000瓦提供10瓦小时以上的伪球员将对车辆性能产生重大影响，尤其是对于以高功率开始运行的重型车辆，用于间歇性可再生能源，以及不间断的电源。这些新伪电容器的低成本和高性能将在美国制造领域产生重要的商业影响，因为它们的制造很容易适应为其他有机电气设备设计的现有基础设施。该项目基于具有前所未有的电压和氧化还原稳定性的有机化合物。 由于这种活性材料可以被氧化和减少为单一物质，因此它具有不需要不对称设计的独特优势。当氧化还原活性局限于溶剂和电解质电压窗口内的相对较窄的带中时，在电容器中使用了不对称或混合设计，以增加电压窗口。该系统在氧化和还原的一半反应之间具有很大的电压分离，而无需平衡质量，并且不制造两个不同的电极。 单一物质优势结合了对称细胞中不对称设计的最佳特性。 该研究小组制备了具有高周期稳定性和2.8伏的开路电位的材料。我们的目标是证明我们新颖的有机电活性材料的使用可以显着增加高表面积双层电容器的电容。