SBIR Phase II: High Surface Area, High-Capacitance Electrochemical Double-Layer Capacitor (EDLC) Electrodes

SBIR 第二阶段：高表面积、高电容电化学双层电容器 (EDLC) 电极

• 批准号: 9901725
• 负责人: Arthur Fortini
• 金额: $ 39.99万
• 依托单位: ULTRAMET, INC.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-10-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9901725&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Surface; Area

This Small Business Innnovation Research (SBIR) Phase II project will develop high-capacitance electrodes that combine high surface area with the electric double-layer effect and fast, reversible faradaic processes at the electrode. This will be accomplished by infiltrating high surface area carbons with Ru02, via a unique process developed at Ultramet and successfully demonstrated in the Phase I project. The net result will be an electrode combining the high surface area of the carbon substrate with the pseudocapacitance properties of Ru02. The primary drawbacks of current electrochemical double-layer capacitor (EDLCs) devices are cost and power density. The EDLC electrode material that allows for the greatest specific capacitance is ruthenium oxide (Ru02), which is derived from ruthenium, an expensive platinum group metal. The cost of such capacitors is therefore quite high. Furthermore, because electrode surface area is a key parameter for capacitance, and because current technology only allows dispersal of the oxide electrode material to surface areas of -120 m2/g, the bulk of the oxide mass remains unused.The optimization of high surface area, high-capacitance electrodes will have many applications in both the civilian and military sectors. Civilian applications include electric automobiles portable communications equipment, pulse power supplies for high-power lasers, burst power for high-power signal generation, and power conditioning for satellites. Military applications include space power conditioning, laser weaponry, electronic fuzes, safety and arming devices, and missile guidance systems.

该小型企业Innovation Research（SBIR）第二阶段项目将开发高电容电极，该电极将高表面积与双电层效应和电极上的快速可逆法拉第过程相结合。 这将通过在Ultramet开发并在第一阶段项目中成功展示的独特工艺，用RuO 2渗透高表面积碳来实现。 最终结果将是将碳基底的高表面积与Ru 〇 2的赝电容性质相结合的电极。 当前电化学双层电容器（EDLC）装置的主要缺点是成本和功率密度。 允许最大比电容的EDLC电极材料是氧化钌（Ru 〇 2），其衍生自钌，一种昂贵的铂族金属。 因此，这种电容器的成本相当高。 此外，由于电极表面积是电容的关键参数，并且由于当前技术仅允许将氧化物电极材料分散至~ 120 m2/g的表面积，因此大部分氧化物物质保持未使用。 民用应用包括电动汽车、便携式通信设备、高功率激光器的脉冲电源、高功率信号产生的脉冲电源以及卫星的功率调节。 军事应用包括空间功率调节、激光武器、电子引信、安全和解除保险装置以及导弹制导系统。