SBIR Phase I: Novel Oxygen Anion Conducting Solid Electrolytes

这个小企业创新研究一期项目将直接研究新一代氧阴离子导电固体电解质的制造和性能评估。基于缺氧褐镍矿晶格的新材料有望在相对较低的温度下实现高离子电导率。开发固体电解质用于电化学电池和传感器有很强的动力。通过在较低温度下实现比目前在氧化钇稳定氧化锆中实现的更高的离子电导率，这些器件的性能将显著增强。例如，它将使燃料电池技术在经济上具有竞争力，因为它减少了由于当前系统的高工作温度而对硬件的严重材料限制。基于这种先进固体电解质的中温电化学装置只需要相对便宜的不锈钢硬件部件即可实现。本课题的成功完成将有助于确定新一代氧阴离子导电固体电解质，用于中温电化学器件。＊＊＊

*** 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. ***