...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of power sources >Performance of alkaline fuel cells: A possible future energy system?
【24h】

Performance of alkaline fuel cells: A possible future energy system?

机译：碱性燃料电池的性能：未来可能的能源系统？

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Alkaline fuel cells (AFCs) are amongst the most mature fuel cell technologies having been in use since the mid 1960s by NASA in the Apollo and Space Shuttle programs. The AFC process is revisited to define current operating characteristics as the baseline for future developments of AFC technologies that can take advantage of advances in alkaline water electrolysers (AWEs). The end purpose is to advance a design that connects and shares as many peripherals in an AFC with that of an AWE. Good AFC performance can be achieved by keeping the operating temperature below 70 ℃ in order to avoid cell damage, the electrolyte concentration should be kept ～8 M to obtain optimum ionic conductivity, and excess gas is needed for the fuel cell to start and display stable operation. In order to understand the link of degradation in cell performance with the materials used in the construction of the fuel cell, the catalytic layer of both the anode and cathode was analyzed. Results showed that improvement in electrochemical performance could be achieved by better catalyst chemistry, structural form and distribution.
机译：自1960年代中期以来，NASA在阿波罗计划和航天飞机计划中一直使用碱性燃料电池（AFC）。重新审视了AFC工艺，以将当前的操作特性定义为AFC技术未来开发的基准，这些技术可以利用碱性水电解槽（AWE）的优势。最终目的是改进一种设计，该设计可以连接和共享AFC中与AWE一样多的外围设备。通过将工作温度保持在70℃以下以避免电池损坏，可以实现良好的AFC性能，电解液的浓度应保持在〜8 M以获得最佳的离子电导率，并且燃料电池需要过量的气体才能启动和显示稳定操作。为了理解电池性能下降与燃料电池结构中所用材料的联系，分析了阳极和阴极的催化层。结果表明，通过更好的催化剂化学，结构形式和分布可以实现电化学性能的改善。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号