Ultra-low temperature sintering of Li based ceramics for energy storage

储能用锂基陶瓷的超低温烧结

• 批准号: 2277378
• 金额: --
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2277378
• 关键词: Ultra; low; temperature; sintering; Li

Cold sintering is a revolutionary ceramic technology in which densification is induced at < 300 degrees C. It is particularly suited to ceramics with Li chemistries, reducing the CO2 emissions associated with ceramic processing at high temperature (700 degrees C. The primary objectives of the project are to optimize the densification of planar multilayers of Li based compositions whilst still retaining high values of Li ion conduction with a view to developing a range of new materials/composites for Li-ion capacitive storage and battery applications.Structure microstructure and properties will be investigated using XRD, SEM, TEM and impedance spectroscopy. Optimised compositions will be used to fabricate planar tapecast layers which will be multilayered and cold sintered to form planar ceramics. A combination of classic and in-operando XRD along with transmission electron microscopy will be used to study the interfacial reactions. The electrical properties will be investigated using impedance spectroscopy. The PhD is part sponsored by the Centre for Dielectrics and Piezoelectrics (CDP), of which the UoS is an academic partner alongside North Carolina and Pennsylvania State Universities. The CDP has 25+ industrial members which include Apple, Samsung, Murata, Taiyo Yuden and Ilika Technologies. Secondments to US partners and to CDP companies are encouraged within the programme.

冷烧结是一种革命性的陶瓷技术，其中致密化在< 300摄氏度下诱导。它特别适用于含锂化学成分的陶瓷，可减少高温（700摄氏度）陶瓷加工过程中的二氧化碳排放。该项目的主要目标是优化锂基复合材料的平面多层结构的致密化，同时保持高的锂离子导电性，以开发一系列用于锂离子电容存储和电池应用的新材料/复合材料。将使用XRD，SEM，TEM和阻抗谱研究结构微观结构和性能。优化的组合物将用于制造平面流延层，其将是多层的并且冷烧结以形成平面陶瓷。经典的和在操作中的XRD沿着与透射电子显微镜的组合将被用来研究界面反应。将使用阻抗谱研究电性能。博士学位由介电和压电中心（CDP）赞助，其中UOS是北卡罗来纳州和宾夕法尼亚州立大学的学术合作伙伴。CDP拥有25个以上的工业成员，包括苹果、三星、村田、太阳诱电和Ilika Technologies。该计划鼓励借调到美国合作伙伴和CDP公司。