Assessment of the Performance of Fuel Cells and Batteries
Assessment of the Performance of Fuel Cells and Batteries
复制标题
燃料电池和电池组的性能评估
DOI：
10.1149/05101.0183ecst
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Akira Miyamoto
中科院分区：
文献类型：
--
作者：
Mark C. Williams;Ai Suzuki;Akira Miyamoto
燃料电池连同有限量的燃料和氧化剂在概念上是电池。在许多应用中，固定式燃料电池预计是40，000小时的一次电池。燃料电池用于长期的操作或任务，普通电池用于短期。由于电池寿命短，可再生性是重要且期望的电池特征。像电池一样，一些燃料电池是可逆的或可再生的或可充电的（电解），但可再生燃料电池的发展并不那么迫切。虽然完美的燃料电池不会发生退化，但实际的燃料电池，如电池，会退化。在单个循环中的电池放电期间，不能容易地将劣化与功率输出分开。在电池退化可以明确地看到，宏观循环。在燃料电池中，可能与电池不同，降解机制可能不依赖于操作的电流密度。退化燃料电池的寿命和容量取决于燃料电池的运行方式。
The fuel cell together with a finite amount of fuel and oxidant is conceptually a battery. The stationary fuel cell in many applications is anticipated to be a 40,000 hour primary battery. Fuel cells are used for longer term operations or missions, the common battery for shorter term. Because of the short battery life, regenerablility is an important and desirable battery feature. Like a battery, some fuel cells are reversible or regenerable or rechargeable (electrolysis), but the development of regenerable fuel cells is not as imperative. While the perfect fuel cell would undergo no degradation, practical fuel cells, like batteries, will degrade. During battery discharge in a single cycle, degradation cannot be readily separated from power output. In the battery degradation can be seen definitively, macroscopically cycle-tocycle. In the fuel cell, perhaps unlike a battery, the mechanism of degradation may not depend on current density of operation. The life, and hence capacity, of a degrading fuel cell depends on how the fuel cell is operated.