SBIR Phase I: High Surface Area, High-Capacitance Electro-Chemical Double-Layer Capacitor (EDLC) Electrodes

SBIR 第一阶段：高表面积、高电容电化学双层电容器 (EDLC) 电极

• 批准号: 9661076
• 负责人: Arthur Fortini
• 金额: $ 7.5万
• 依托单位: ULTRAMET, INC.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9661076&HistoricalAwards=false
• 关键词: SBIR; Phase; Surface; Area; Capacitance

*** 9661076 Fortini This Phase I Small Business Innovation Research 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 aerogels with precious metal oxides via a unique process. The net result will be an electrode with the surface area of an aerogel, but with the pseudocapacitance properties of ruthenium oxide (RuO2). The primary drawbacks of current electrochemical double-layer capacitors (EDLCs) are cost and power density. The EDLC electrode material that allows for the greatest specific capacitance is RuO2 which is based on an expensive platinum group metal. Thus, the cost of such capacitors is quite high. Furthermore, because electrode surface area is the 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, 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 fuses, safety and arming devices, and missile guidance systems. ***

* 9661076福尔蒂尼 这个第一阶段的小企业创新研究项目将开发高电容电极，联合收割机高表面积与双电层效应和快速，可逆的电极法拉第过程。这将通过独特的工艺用贵金属氧化物渗透气凝胶来实现。最终结果将是具有气凝胶表面积的电极，但具有氧化钌（RuO 2）的赝电容特性。目前电化学双层电容器（EDLC）的主要缺点是成本和功率密度。允许最大比电容的EDLC电极材料是基于昂贵的铂族金属的RuO 2。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。 高表面积、高电容电极的优化将在民用和军事部门都有许多应用。 民用应用包括电动汽车、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。 ***