A fuel cell, particularly one that

燃料电池，特别是必须满足汽车应用挑战性的动态负载的燃料电池，在其使用寿命期间将经历许多负载的快速变化。<br>随着燃料电池从高电流循环到低电流，其电池电势也将变化，通常在0.6至1.0 V之间。对于使用相对纯净的氢气作为燃料运行的电池，由于氢氧化反应的简便性质。这意味着随着电池电势的变化以适应可变的功率需求，阴极将经历电势摆动。阴极电势的变化将改变电极材料的几种性能，特别是铂和碳的氧化物覆盖程度以及表面的疏水性。

A fuel cell, particularly one that must meet the challenging dynamic load of an automotive application, will undergo many rapid changes in load over the course of its lifetime.<br>As the fuel cell cycles from high to low current, its cell potential will also vary, generally between 0.6 and 1.0 V. For cells operating with relatively pure hydrogen as a fuel, the anode will stay fairly close to the reversible hydrogen potential, due to the facile nature of the hydrogen oxidation reaction. This implies that the cathode experiences potential swings as cell potential changes to match variable power demands. The variation of the cathode potential will change several properties of the electrode materials, notably the degree of oxide coverage of both platinum and carbon, and the hydrophobicity of the surfaces.

燃料电池，尤其是必须满足汽车应用的挑战性动态负载的燃料电池，在其使用寿命期间将经历许多负载的快速变化。<br>当燃料电池从高电流循环到低电流时，其电池电位也会发生变化，一般在0.6至1.0 V之间。对于以相对纯氢作为燃料的电池，由于氢氧化反应的易发生性，阳极将保持相当接近可逆的氢电势。这意味着，当电池电位变化以满足可变功率需求时，阴极会经历电位波动。阴极电位的变化会改变电极材料的一些性质，特别是铂和碳的氧化物覆盖度，以及表面的疏水性。<br>