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[信息] 150年以前的燃料电池

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发表于 2010-8-21 07:31:46 | 显示全部楼层 |阅读模式
这种燃料电池的发明150年以前(1839以上)。

  威廉罗伯特格鲁夫(1811年至1896年)和基督教弗里德里希舍恩拜因(1799年至1868年)是作为燃料电池技术的父亲认为。 他们的燃料电池没有达到普遍使用的材料,由于与问题,随着像燃烧的发动机和发电机的替代装置的发明。

  该技术是重新发现在'太空竞赛20世纪60年代,当成本和研究工作并没有障碍'。 目前,有一个新的,环境友好的能源来源,由于环境污染日益有限的化石燃料储备的巨大需求。 这种需求推动了燃料电池的研究和开发的浪潮。

  该燃料电池的工作方式基本上是一个电解槽相反。

  在燃料电池,氢气和氧气的化学(或空气)直接转换为电能的,即没有一个燃烧的过程。 燃料电池有许多不同的类型,但它们都基本上由两个电极(阴极和阳极)和电解质(一运送离子介质),相互分隔的两个电极。

  燃料电池通常使用的按电解质类型。 其它特点包括工作温度变量,效率和应用领域。



  质子交换膜燃料电池质子交换膜电解一样,质子交换膜燃料电池用电解液薄,质子导电聚合物膜。 在膜双方都涂有催化剂材料,有点不同,从电解槽中使用的材料层。

  该电极(如铂)导致在阳极氢气打入了质子和电子,即使在室温下的催化效果。 的H +离子(质子)穿过质子导电膜到达阴极。 当外电路关闭,电子旅行到阴极,从而从事电力工作。 因此,水是产生于阴极(见图表)。

  

  燃料电池和质子交换膜电解可同时为设备。 质子交换膜的首字母缩写**的质子交换膜或聚合物电解质膜,指的是质子导电聚合物膜作为电解质的使用。 在膜双方都涂有一层薄薄的催化材料。 这两个层次构成的负面和正面电极(阴极和阳极)。

  燃料电池可以单独收集到一个单位,并连接到每个系列中的其它,在一个“堆栈细胞”造成的。



  堆栈的可以通过改变个别细胞数量调整产量。
 楼主| 发表于 2010-8-21 07:32:51 | 显示全部楼层
原文如下:

  Fuel Cells

  The fuel cell was invented over 150 years ago (1839).

  Sir William Robert Grove (1811-1896) and Christian Friedrich Schoenbein (1799-1868) are regarded as the fathers of fuel cell technology. Their fuel cells did not achieve widespread use due to problems with the materials, along with the invention of alternative devices like the combustion engine and the electric generator.

  The technology was rediscovered during the 'Space Race' of the 1960s, when cost and research effort were no obstacle. Currently, there is a great demand for new, environmentally friendly energy sources, due to increasing environmental pollution and our limited reserves of fossil fuels. This demand drives the current wave of fuel cell research and development.

  The way a fuel cell works is basically the opposite of an electrolysis cell.

  In a fuel cell, chemical energy from hydrogen and oxygen (or air) is directly converted to electrical energy, i.e. without a combustion process. There are many different types of fuel cells, but they all essentially c**ist of two electrodes (cathode and anode) and an electrolyte (a medium for transporting i**), which separates the two electrodes from each other.

  Fuel cells are usually classified by the type of electrolyte used. Other variable traits include Operating Temperature, Efficiency, and Field of Application.



  PEM Fuel CellsLike PEM Electrolysers, PEM fuel cells use a thin, proton-conducting polymer membrane as an electrolyte. Both sides of the membrane are coated with a layer of catalyst material, which differs somewhat from the material used in the Electrolyser.

  The catalytic effects of the electrode (e.g. platinum) cause the hydrogen gas at the anode to break down into prot** and electr** even at room temperature. The H+ i** (prot**) traverse the proton-conducting membrane to get to the cathode side. When the outer circuit is closed, the electr** travel to the cathode, thereby doing electrical work. As a result, water is produced at the cathode (see diagram).

  

  Fuel cells and Electrolysers can both be PEM devices. The acronym PEM stands for Proton Exchange Membrane or Polymer Electrolyte Membrane, and refers to the proton-conducting polymer foil which is used as the electrolyte. Both sides of the membrane are coated with a thin layer of catalyst material. These two layers form the negative and positive electrodes (cathode and anode).

  Individual fuel cells can be collected into a unit and connected to each other in series, resulting in a "stack" of cells.



  The output of the stack can be adjusted by changing the number of individual cells.
发表于 2010-9-7 11:24:55 | 显示全部楼层
翻译的是什么玩意儿。。。
发表于 2011-2-8 16:31:47 | 显示全部楼层
支持楼主,望楼主能继续坚持下去,走自己的路,让别人说去
发表于 2011-2-26 09:09:39 | 显示全部楼层
支持楼主 ..........
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