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    • 6. 发明申请
    • NANOSTRUCTURE ELECTRODE FOR PSEUDOCAPACITIVE ENERGY STORAGE
    • 用于防止能量储存的纳米结构电极
    • WO2012033570A1
    • 2012-03-15
    • PCT/US2011/044643
    • 2011-07-20
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONHAIGHT, Richard A.ROSSNAGEL, Stephen M.
    • HAIGHT, Richard A.ROSSNAGEL, Stephen M.
    • H01G9/058
    • H01G11/26H01G11/36H01G11/46Y02E60/13
    • A nanoporous templating substrate, which is an anodically oxidized alumina (AAO) substrate, is employed to form a pseudocapacitor having high stored energy density. A pseudocapacitive material is deposited conformally along the sidewalls of the AAO substrate by atomic layer deposition, chemical vapor deposition), and/or electrochemical deposition employing a nucleation layer. The thickness of the pseudocapacitive material on the walls can be precisely controlled in the deposition process. The AAO is etched to form an array of nanotubes of the PC material that are cylindrical and structurally robust with cavities therein. Because the AAO substrate that acts as scaffolding is removed, only the active PC material is left behind, thereby maximizing the energy per mass. In addition, nanotubes may be de-anchored from a substrate so that free-standing nanotubes having randomized orientations may be deposited on a conductive substrate to form an electrode of a pseudocapacitor
    • 使用作为阳极氧化的氧化铝(AAO)底物的纳米多孔模板基底来形成具有高储能能量密度的假电容器。 通过原子层沉积,化学气相沉积)和/或使用成核层的电化学沉积,沿着AAO衬底的侧壁保形地沉积假电容材料。 在沉积过程中可以精确地控制壁上的假电容材料的厚度。 AAO被蚀刻以形成PC材料的纳米管阵列,该纳米管是圆柱形的并且结构上坚固的具有空腔的纳米管。 由于去除了作为脚手架的AAO基板,所以只剩下活性PC材料,从而使每质量的能量最大化。 此外,可以从衬底去除锚定纳米管,使得具有随机取向的自立式纳米管可以沉积在导电衬底上以形成假电容器的电极