SBIR Phase I: Novel Oxygen Anion Conducting Solid Electrolytes

* 970635多纳休 这个小企业创新研究第一阶段项目将针对新一代氧阴离子传导固体电解质的制造和性能评估。 基于缺氧的棕钙钛矿晶格的新材料预计具有在相对较低的温度下实现高离子电导率的近期潜力。存在开发用于电化学电池和传感器的固体电解质的强烈动机。 通过在比氧化钇稳定的氧化锆目前实现的更低的温度下实现更高的离子电导率，这些器件的性能将显著增强。例如，它将通过减少由于当前系统的高操作温度而对硬件的严重材料限制，使燃料电池技术具有经济竞争力。 基于这种先进的固体电解质的中温电化学装置将仅需要相对便宜的不锈钢硬件部件来实现它们。 该计划的成功完成将导致确定新一代的氧阴离子传导固体电解质在中温电化学设备中的应用。 ***

*** 970635 Donahue This Small Business Innovation Research Phase I project will be directed toward the fabrication and performance evaluation of a new generation of oxygen anion conducting solid electrolytes. The new materials based on oxygen deficient brownmillerite lattices are expected to have a near term potential for achieving high ionic conductivities at relatively lower temperatures. There are strong incentives to develop solid electrolytes for application in electrochemical cells and sensors. The performance of these devices would be significantly enhanced by realizing higher ionic conductivity at lower temperatures than is currently realized in the yttria stabilized zirconia. It would, for example, enable fuel cell technology to be economically competitive by reducing the severe materials constraints on hardware due to the high operating temperatures of the current system. Moderate temperature electrochemical devices based on such advanced solid electrolytes will only require relatively inexpensive stainless steel hardware components for their implementation. Successful completion of this program will result in identifying a new generation of oxygen anion conducting solid electrolytes for application in intermediate temperature electrochemical devices. ***