公开(公告)号：US07655333B2

公开(公告)日：2010-02-02

申请号：US11170393

申请日：2005-06-28

申请人： Hong Huang ,  Friedrich B. Prinz ,  Masafumi Nakamura ,  Yuji Saito

发明人： Hong Huang ,  Friedrich B. Prinz ,  Masafumi Nakamura ,  Yuji Saito

IPC分类号： H01M8/10

CPC分类号： H01M4/92 ,  H01M4/0492 ,  H01M8/0247 ,  H01M8/1253 ,  H01M8/126 ,  H01M8/1286 ,  H01M2008/1293 ,  H01M2300/0077 ,  Y02E60/525 ,  Y02P70/56

摘要： This document describes the nano-scaling effects of solid-state oxygen-ion conductors when the thickness of an ionic conductor membrane as well as size of the grains within the membrane are scaled down to less than 200 nm. By using such solid-state oxygen-ion conductor membranes as solid-state electrolytes, the performances of solid-state ionic devices like fuel cells, gas sensors and catalytic supporters, can be improved and operating temperature can be lowered.

摘要翻译： 本文件描述了当离子导体膜的厚度以及膜内的晶粒尺寸缩小到小于200nm时，固态氧离子导体的纳米尺度效应。 通过使用这种固态氧离子导电膜作为固态电解质，能够提高燃料电池，气体传感器和催化剂载体等固态离子装置的性能，降低工作温度。

公开(公告)号：US20090087712A1

公开(公告)日：2009-04-02

申请号：US12229611

申请日：2008-08-22

申请人： Hong Huang ,  Pei-Chen Su ,  Friedrich B. Prinz ,  Rainer J. Fasching ,  Yuji Saito

发明人： Hong Huang ,  Pei-Chen Su ,  Friedrich B. Prinz ,  Rainer J. Fasching ,  Yuji Saito

IPC分类号： H01M8/10 ,  G03F7/20

CPC分类号： H01M8/1286

摘要： A silicon-based solid oxide fuel cell (SOFC) with high surface area density in a limited volume is provided. The structure consists of a corrugated nano-thin film electrolyte and a silicon supportive layer on a two-stage silicon wafer through-hole to maximize the electrochemically active surface area within a given volume. The silicon supportive layer is done by boron-etch stop technique with diffusion doping. The fabrication of two-stage wafer through hole combines deep reactive ionic etching (DRIE) and KOH wet etching of silicon for a wafer through hole containing two difference sizes. By these design and fabrication methods, the absolute electrochemically active area can be as high as five times of that of the projected area.

摘要翻译： 提供了具有有限体积的高表面积密度的硅基固体氧化物燃料电池（SOFC）。 该结构由两层硅晶圆通孔上的瓦楞纳米薄膜电解质和硅支撑层组成，以使给定体积内的电化学活性表面积最大化。 硅支撑层通过具有扩散掺杂的硼蚀刻停止技术完成。 两级晶片通孔的制造结合了深层反应离子蚀刻（DRIE）和KOH湿法蚀刻硅，用于具有两个不同尺寸的晶片通孔。 通过这些设计和制造方法，绝对电化学活性面积可以高达投影面积的五倍。

公开(公告)号：US07700218B2

公开(公告)日：2010-04-20

申请号：US12004139

申请日：2007-12-19

申请人： Jun Sasahara ,  Daniel Braithwaite ,  Suk-Won Cha ,  Tibor Fabian ,  Tadahiro Kubota ,  Nariaki Kuriyama ,  Sang-Joon John Lee ,  Ryan O'Hayre ,  Friedrich B. Prinz ,  Yuji Saito ,  Toshifumi Suzuki

发明人： Jun Sasahara ,  Daniel Braithwaite ,  Suk-Won Cha ,  Tibor Fabian ,  Tadahiro Kubota ,  Nariaki Kuriyama ,  Sang-Joon John Lee ,  Ryan O'Hayre ,  Friedrich B. Prinz ,  Yuji Saito ,  Toshifumi Suzuki

IPC分类号： H01M2/00 ,  H01M2/02 ,  H01M2/14

CPC分类号： H01M8/0228 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0232 ,  H01M8/0256 ,  H01M8/0263 ,  H01M8/0269 ,  H01M8/0271 ,  H01M8/241 ,  H01M8/2415 ,  H01M8/247 ,  H01M8/2483

摘要： A simple, inexpensive and highly efficient fuel cell has boundary structures made of a photo-sensitive material in combination with selective patterning. Printed circuit board (PCB) fabrication techniques combine boundary structures with two and three dimensional electrical flow path. Photo-sensitive material and PCB fabrication techniques are alternately or combined utilized for making micro-channel structures or micro stitch structures for substantially reducing dead zones of the diffusion layer while keeping fluid flow resistance to a minimum. The fuel cell assembly is free of mechanical clamping elements. Adhesives that may be conductively contaminated and/or fiber-reinforced provide mechanical and eventual electrical connections, and sealing within the assembly. Mechanically supporting backing layers are pre-fabricated with a natural bend defined in combination with the backing layers' elasticity to eliminate massive support plates and assist the adhesive bonding. Proton insulation between adjacent and electrically linked in-plane cell elements is provided by structural insulation within the central membrane.

公开(公告)号：US07341800B2

公开(公告)日：2008-03-11

申请号：US10435610

申请日：2003-05-09

申请人： Jun Sasahara ,  Daniel Braithwaite ,  Suk-Won Cha ,  Tibor Fabian ,  Tadahiro Kubota ,  Nariaki Kuriyama ,  Sang-Joon John Lee ,  Ryan O'Hayre ,  Friedrich B. Prinz ,  Yuji Saito ,  Toshifumi Suzuki

发明人： Jun Sasahara ,  Daniel Braithwaite ,  Suk-Won Cha ,  Tibor Fabian ,  Tadahiro Kubota ,  Nariaki Kuriyama ,  Sang-Joon John Lee ,  Ryan O'Hayre ,  Friedrich B. Prinz ,  Yuji Saito ,  Toshifumi Suzuki

IPC分类号： H01M2/14 ,  H01M8/00

CPC分类号： H01M8/0228 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0232 ,  H01M8/0256 ,  H01M8/0263 ,  H01M8/0269 ,  H01M8/0271 ,  H01M8/241 ,  H01M8/2415 ,  H01M8/247 ,  H01M8/2483

摘要： A simple, inexpensive and highly efficient fuel cell has boundary structures made of a photo-sensitive material in combination with selective patterning. Printed circuit board (PCB) fabrication techniques combine boundary structures with two and three dimensional electrical flow path. Photo-sensitive material and PCB fabrication techniques are alternately or combined utilized for making micro-channel structures or micro stitch structures for substantially reducing dead zones of the diffusion layer while keeping fluid flow resistance to a minimum. The fuel cell assembly is free of mechanical clamping elements. Adhesives that may be conductively contaminated and/or fiber-reinforced provide mechanical and eventual electrical connections, and sealing within the assembly. Mechanically supporting backing layers are pre-fabricated with a natural bend defined in combination with the backing layers' elasticity to eliminate massive support plates and assist the adhesive bonding. Proton insulation between adjacent and electrically linked in-plane cell elements is provided by structural insulation within the central membrane.

公开(公告)号：US07273671B2

公开(公告)日：2007-09-25

申请号：US09850203

申请日：2001-05-08

申请人： Yuji Saito ,  Jun Sasahara ,  Nariaki Kuriyama ,  Tadahiro Kubota ,  Toshifumi Suzuki ,  Yuji Isogai ,  Friedrich B. Prinz ,  Sang-Joon John Lee ,  Suk Won Cha ,  Yaocheng Liu ,  Ryan O'Hayre

发明人： Yuji Saito ,  Jun Sasahara ,  Nariaki Kuriyama ,  Tadahiro Kubota ,  Toshifumi Suzuki ,  Yuji Isogai ,  Friedrich B. Prinz ,  Sang-Joon John Lee ,  Suk Won Cha ,  Yaocheng Liu ,  Ryan O'Hayre

IPC分类号： H01M8/10 ,  H01M8/22

CPC分类号： H01M8/2404 ,  H01M4/8605 ,  H01M4/8885 ,  H01M8/1213 ,  H01M8/243 ,  H01M8/2475 ,  Y02P70/56

摘要： In a fuel cell comprising a tubular casing, an electrolyte layer received in the tubular casing, and a pair of gas diffusion electrodes interposing the electrolyte layer and defining a fuel gas passage and an oxidizing gas passage, respectively, each gas diffusion electrode is formed by stacking a plurality of layers of material therefor, for instance in the axial direction of the casing. Because the gas diffusion layers are formed layer by layer, components can be formed in highly fine patterns so that a highly compact tubular fuel cell can be achieved. Similarly, the dimensions of the various elements of the fuel cell can be controlled in a highly accurate manner. Also, the geometric arrangement can be changed at will in intermediate parts of each gas passage.

公开(公告)号：US07169498B2

公开(公告)日：2007-01-30

申请号：US10449392

申请日：2003-06-02

申请人： Yuji Saito ,  Jun Sasahara ,  Nariaki Kuriyama ,  Tadahiro Kubota ,  Toshifumi Suzuki ,  Yuji Isogai ,  Friedrich B. Prinz ,  Sang-Joon John Lee ,  Suk Won Cha ,  Yaocheng Liu ,  Ryan O'Hayre

发明人： Yuji Saito ,  Jun Sasahara ,  Nariaki Kuriyama ,  Tadahiro Kubota ,  Toshifumi Suzuki ,  Yuji Isogai ,  Friedrich B. Prinz ,  Sang-Joon John Lee ,  Suk Won Cha ,  Yaocheng Liu ,  Ryan O'Hayre

IPC分类号： H01M8/10 ,  H01M4/88

CPC分类号： H01M8/2404 ,  H01M4/8605 ,  H01M4/8885 ,  H01M8/1213 ,  H01M8/243 ,  H01M8/2475 ,  Y02P70/56

摘要： In a fuel cell comprising a tubular casing, an electrolyte layer received in the tubular casing, and a pair of gas diffusion electrodes interposing the electrolyte layer and defining a fuel gas passage and an oxidizing gas passage, respectively, each gas diffusion electrode is formed by stacking a plurality of layers of material therefor, for instance in the axial direction of the casing. Because the gas diffusion layers are formed layer by layer, components can be formed in highly fine patterns so that a highly compact tubular fuel cell can be achieved. Similarly, the dimensions of the various elements of the fuel cell can be controlled in a highly accurate manner. Also, the geometric arrangement can be changed at will in intermediate parts of each gas passage.

摘要翻译： 在包括管状壳体的电池单元中，容纳在管状壳体中的电解质层和分别插入电解质层并限定燃料气体通道和氧化气体通道的一对气体扩散电极，每个气体扩散电极通过 堆叠多个材料层，例如沿壳体的轴向方向。 由于气体扩散层是逐层形成的，所以可以以高精细图案形成部件，从而能够实现高度紧凑的管状燃料电池。 类似地，可以以高精度的方式控制燃料电池的各种元件的尺寸。 此外，几何排列可以随意地在每个气体通道的中间部分改变。

公开(公告)号：US07799453B2

公开(公告)日：2010-09-21

申请号：US10912527

申请日：2004-08-04

申请人： Juan Santiago ,  Jonathan Posner ,  Friedrich B. Prinz ,  Tibor Fabian ,  John Eaton ,  Suk-Won Cha ,  Cullen Buie ,  Daejoogn Kim ,  Hideaki Tsuru ,  Jun Sasahara ,  Tadahiro Kubota ,  Yuji Saito

发明人： Juan Santiago ,  Jonathan Posner ,  Friedrich B. Prinz ,  Tibor Fabian ,  John Eaton ,  Suk-Won Cha ,  Cullen Buie ,  Daejoogn Kim ,  Hideaki Tsuru ,  Jun Sasahara ,  Tadahiro Kubota ,  Yuji Saito

IPC分类号： H01M2/00 ,  H01M2/02 ,  F04B37/02 ,  F04F99/00

CPC分类号： H01M8/04164 ,  F04B17/00 ,  H01M8/04126 ,  H01M8/04186 ,  H01M8/04291 ,  H01M8/04447 ,  H01M8/04559 ,  H01M8/04589 ,  H01M8/04798 ,  H01M8/04917 ,  H01M8/1011 ,  Y02E60/523

摘要： Water flooding at the cathode of a fuel cell is a common problem in fuel cells. By integrating an electroosmotic (EO) pump to remove product water from the cathode area, fuel cell power can be increased. Integration of EO pumps transforms the designs of air channel and air breathing cathodes, reducing air pumping power loads and increasing oxidant transport. Hydration of gas streams, management of liquid reactants, and oxidant delivery can also be accomplished with integrated electroosmotic pumps. Electroosmotic pumps have no moving parts, can be integrated as a layer of the fuel cell, and scale with centimeter to micron scale fuel cells.

摘要翻译： 在燃料电池的阴极处的水驱是在燃料电池中的常见问题。 通过集成电渗（EO）泵以从阴极区域去除产物水，可以增加燃料电池的功率。 EO泵的整合改变了空气通道和空气呼吸阴极的设计，减少了空气泵送功率负荷和增加了氧化剂运输。 气流的水化，液体反应物的管理和氧化剂输送也可以用集成的电渗泵完成。 电渗泵没有移动部件，可以作为燃料电池的一层集成，并用厘米到微米级的燃料电池进行刻度。

公开(公告)号：US06835488B2

公开(公告)日：2004-12-28

申请号：US09850411

申请日：2001-05-08

申请人： Jun Sasahara ,  Suk Won Cha ,  Amy Chang-Chien ,  Tadahiro Kubota ,  Nariaki Kuriyama ,  Sang-Joon J. Lee ,  Yaocheng Liu ,  Ryan O'Hayre ,  Friedrich B. Prinz ,  Yuji Saito

发明人： Jun Sasahara ,  Suk Won Cha ,  Amy Chang-Chien ,  Tadahiro Kubota ,  Nariaki Kuriyama ,  Sang-Joon J. Lee ,  Yaocheng Liu ,  Ryan O'Hayre ,  Friedrich B. Prinz ,  Yuji Saito

IPC分类号： H01M214

CPC分类号： H01M4/86 ,  H01M4/0485 ,  H01M8/0254 ,  H01M8/0289 ,  H01M8/1007 ,  H01M2008/1293

摘要： A fuel cell contains an electrolyte sheet sandwiched between two electrodes. One or both electrode/electrolyte interfaces includes mesoscopic three-dimensional features in a prescribed pattern. The features increase the surface area-to-volume ratio of the device and can be used as integral channels for directing the flow of reactant gases to the reaction surface area, eliminating the need for channels in sealing plates surrounding the electrodes. The electrolyte can be made by micromachining techniques that allow very precise feature definition. Both selective removal and mold-filling techniques can be used. The fuel cell provides significantly enhanced volumetric power density when compared with conventional fuel cells.

摘要翻译： 燃料电池包含夹在两个电极之间的电解质片。 一个或两个电极/电解质界面包括规定图案的介观三维特征。 这些特征增加了装置的表面积 - 体积比，并且可以用作用于将反应物气体流引导到反应表面区域的整体通道，从而不需要围绕电极的密封板中的通道。 电解质可以通过允许非常精确的特征定义的微加工技术制成。 可以使用选择性去除和模具填充技术。 与常规燃料电池相比，燃料电池提供显着提高的体积功率密度。

公开(公告)号：US20090142642A1

公开(公告)日：2009-06-04

申请号：US12008714

申请日：2008-01-10

申请人： Friedrich B. Prinz ,  Suk-Won Cha ,  Kevin M. Crabb ,  Yuji Saito ,  Masayuki Sugawara

发明人： Friedrich B. Prinz ,  Suk-Won Cha ,  Kevin M. Crabb ,  Yuji Saito ,  Masayuki Sugawara

IPC分类号： H01M8/10

CPC分类号： H01M4/8657 ,  H01M4/8885 ,  H01M4/9016 ,  H01M4/9033 ,  H01M2004/8689

摘要： Cathode structures for low temperature solid oxide fuel cells are provided. The cathode structures include thin dense mixed ionic electronic conducting (MIEC) films. MIEC materials include materials with perovskite structures, such as LSCF. The thickness of the MIEC film is determined by minimizing the sum of the electronic and ionic resistances. Specific functions for the electronic and ionic resistances in terms of device and physical parameters are also provided. Pulsed laser deposition is used for the fabrication of the MIEC film and the electrolyte layer.

摘要翻译： 提供了低温固体氧化物燃料电池的阴极结构。 阴极结构包括薄密集混合离子电子导电膜（MIEC）。 MIEC材料包括具有钙钛矿结构的材料，如LSCF。 通过最小化电子和离子电阻的总和来确定MIEC膜的厚度。 还提供了关于器件和物理参数的电子和离子电阻的具体功能。 脉冲激光沉积用于制造MIEC膜和电解质层。

公开(公告)号：US07108813B2

公开(公告)日：2006-09-19

申请号：US11090658

申请日：2005-03-25

申请人： Sangkyun Kang ,  Yong-Il Park ,  Friedrich B. Prinz ,  Suk-Won Cha ,  Yuji Saito ,  Ali Farvid ,  Pei-Chen Su

发明人： Sangkyun Kang ,  Yong-Il Park ,  Friedrich B. Prinz ,  Suk-Won Cha ,  Yuji Saito ,  Ali Farvid ,  Pei-Chen Su

IPC分类号： B29C65/00 ,  B01D39/00 ,  B44C1/22 ,  B01D35/00

CPC分类号： B01D53/228 ,  B01D67/0062 ,  B01D69/02 ,  B01D69/10 ,  B01D71/022 ,  B01D71/024 ,  B01D2325/02 ,  B01D2325/04 ,  H01M4/861 ,  H01M4/8657 ,  H01M4/92 ,  H01M8/1226 ,  Y10T428/12028 ,  Y10T428/2944 ,  Y10T428/31678

摘要： An improved two-step replication process for fabrication of porous metallic membranes is provided. A negative of a porous non-metallic template is made by infiltration of a liquid precursor into the template, curing the precursor to form a solid negative, and removing the template to expose the negative. Metal is deposited to surround the exposed negative. Removal of the negative provides a porous metallic membrane having pores which replicate the pores of the original template membrane. The negative is kept immersed in a liquid at all times between removing the template and depositing the metal. This immersion eliminates damage to the negative that would be incurred in drying the negative out between these processing steps. Another aspect of the invention is metallic membranes prepared according to the preceding method. For example, metallic membranes having pores smaller on one side than on the other side of the membrane are provided.

摘要翻译： 提供了用于制造多孔金属膜的改进的两步复制方法。 通过将液体前体渗透到模板中，固化前体以形成固体阴极，并除去模板以暴露阴性，从而制备多孔非金属模板的阴性。 金属沉积环绕暴露的负极。 去除阴性提供了具有复制原始模板膜的孔的孔的多孔金属膜。 在除去模板和沉积金属之前，将负片始终浸入液体中。 这种浸没消除了在这些处理步骤之间干燥负极时将产生的负面损坏。 本发明的另一方面是根据前述方法制备的金属膜。 例如，提供在一侧的孔比膜的另一侧更小的金属膜。