However, it also increases both the ohmic loss at the solid-state electrolyte and the polarization loss at both electrodes. 但是,温度的降低也会增大固体电解质的欧姆损失,使电极的极化作用增大。
Various methods to reduce the heat effect of Ni/ MH battery were summarized, such as decreasing ohmic resistance and charge polarization, increasing O_2 evolving over-potential, reducing O_2 recombination, heat dissipation and charge monitoring. 总结了各种降低MH/Ni电池热效应的方法,包括降低电池欧姆电阻、减小充电极化、提高氧气析出过电位、减少氧气复合以及散热和充电控制等。
Within the voltage range of simulation, ohmic polarization plays the principal role. SOFC's performance can be promoted by raising the fuel cell's mean working temperature, by improving the microstructure of the porous electrode and by substituting pure oxygen for air as the oxidant. 在所模拟的电压范围内,欧姆极化起主要作用,提高固体氧化物燃料电池的平均工作温度、改善多孔电极的微观结构、使用纯氧代替空气作为氧化剂可改善电池性能。
Results show that an improved performance of the tubular SOFC can be achieved by decreasing the ohmic polarization on the condition of decreasing thickness of the electrolyte and resistivity of the collector. 计算结果表明,减少电解质厚度和提高电池电流收集器的导电性可以减少电池的欧姆极化,提高电池的输出能力。
Theory of Polarization of Porous Electrodes The model includes all the three polarizations: ohmic, activation and concentration polarization. 多孔电极极化理论&Ⅱ.有欧姆极化的电极稳态的解和导电特征电流模型中考虑了造成电池输出损失的三种极化现象:欧姆极化、活化极化和浓差极化。
The effects of activation, ohmic and concentration polarization on the overall performance of SOFC were studied under different designs. 研究不同结构设计条件下,活化极化、欧姆极化、浓差极化对SOFC性能的影响。