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51. 发明申请

US20060078765A1 Nano-structured ion-conducting inorganic membranes for fuel cell applications 审中-公开
标题翻译：用于燃料电池应用的纳米结构的离子导电无机膜
公开(公告)号：US20060078765A1
公开(公告)日：2006-04-13
申请号：US10962556
申请日：2004-10-12
申请人： Laixia Yang , Jiusheng Guo , Bor Jang
发明人： Laixia Yang , Jiusheng Guo , Bor Jang
IPC分类号： H01M8/00 , H01M2/14
CPC分类号： H01M8/1016 , H01B1/122 , H01M8/1009 , H01M2008/1095 , H01M2008/1293 , H01M2300/0071 , H01M2300/0077 , H01M2300/0082 , H01M2300/0091
摘要： An inorganic proton-conducting membrane and a fuel cell comprising this membrane. The fuel cell comprises a fuel anode, an oxidant cathode, and an inorganic proton-conducting membrane disposed between the anode and the cathode. The membrane is composed of a nano-structured network of proton-exchange inorganic particles. The particles form a sufficiently high density of proton-conducting nanometer-scaled channels with at least one dimension smaller than 100 nanometers so that ionic conductivity of the membrane is no less than 10−6 S/cm (mostly greater than 10−4 S/cm ) at 25° C. or no less than 10−4 S/cm (mostly greater than 10−2 S/cm) at 200° C. This inorganic membrane allows a hydrogen-oxygen fuel cell to operate at a higher temperature without the need (or with a reduced need) to maintain the membrane in a highly hydrated state. A higher operating temperature also implies a fast electro-catalytic reaction of a fuel (e.g., mixture of methanol and water) at the anode permitting a lesser amount of fuel to cross-over the membrane and, hence, a higher fuel utilization efficiency.
摘要翻译：无机质子传导膜和包含该膜的燃料电池。燃料电池包括燃料阳极，氧化剂阴极和设置在阳极和阴极之间的无机质子传导膜。膜由质子交换无机颗粒的纳米结构网络组成。颗粒形成具有至少一个尺寸小于100纳米的质子传导纳米级通道的足够高的密度，使得膜的离子导电性不小于10 -6 S / cm（主要是在25℃或不低于10 -4 S / cm（大多数大于10 -2 / SUP / S / cm）。该无机膜允许氢氧燃料电池在更高的温度下操作，而不需要（或需要减少）来维持膜处于高度水合状态。更高的操作温度也意味着燃料（例如甲醇和水的混合物）在阳极处的快速电催化反应，允许较少量的燃料跨过膜，因此具有更高的燃料利用效率。

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