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一个热自给自足的微型固体氧化物燃料电池堆,具有高功率密度
Zongping Shao1, Sossina M Haile, Jeongmin Ahn
1Materials Science, California Institute of Technology, Pasadena, California 91125, USA.
Nature
|June 10, 2005
概括
本研究介绍了一种用于便携式电源的热自维持的微固体氧化物燃料电池 (SOFC) 堆. 它在单设计中使用燃料实现了快速启动和高功率输出.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 能源转换 能源转换
背景情况:
- 聚合物电解质直接甲醇燃料电池正在探索便携式动力,但存在局限性.
- 固体氧化物燃料电池 (SOFC) 提供更高的能量密度,但在小规模应用中面临热管理挑战.
研究的目的:
- 为便携式发电开发一个热自给自足的微型SOFC堆.
- 克服现有的燃料电池技术在便携式应用中的局限性.
主要方法:
- 在单室配置中运行的微SOFC堆的演示.
- 使用气作为燃料,允许直接使用更高的碳化合物.
- 通过催化氧化反应实现热自给自足.
主要成果:
- 微SOFC堆在500-600摄氏度工作,保持热自给自足.
- 实现了快速启动能力.
- 从1.42厘米2的阴极面积获得了约350mW的1.0V的输出功率.
结论:
- 开发的微SOFC堆为高功率便携式能源发电提供了一个有前途的解决方案.
- 这项技术克服了与SOFCs在便携式应用中的关键挑战,包括热管理和启动时间.
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