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Manufacturing of Metal Sulfides for Next Generation Batteries

用于下一代电池的金属硫化物的制造

基本信息

批准号：
2219184
负责人：
Colin Wolden
金额：
$ 37.98万
依托单位：
Colorado School of Mines
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2022
资助国家：
美国
起止时间：
2022-09-01 至 2025-08-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2219184&HistoricalAwards=false
关键词：
Manufacturing Metal Sulfides Next Generation

项目摘要

This grant supports research that contributes to new knowledge related to the sustainable production of metal sulfides, a class of materials that are needed in many advanced technologies. The high cost of these materials reflects the high temperature, energy intensive processes currently employed for their production and purification. This award supports fundamental research generating the required knowledge for the development of a solution-based process for the manufacturing of these materials that is grounded in the principles of green chemistry and engineering. The critical reagents and solvents employed are recycled in a circular economy. The new process will enable scalable manufacturing of metal sulfide nanocrystals at ambient conditions with the ability to tune their size and shape to optimize performance in subsequent end-use applications. This research focuses on metal sulfides central to next generation battery technologies, addressing the critical storage bottleneck that constrains expanded deployment of renewable electricity required to stem global warming. Therefore, results from this research will benefit the U.S. economy and society. This research involves several disciplines including manufacturing, solution chemistry, separations, and materials science. The multi-disciplinary approach will help broaden participation of underrepresented groups in research and positively impact engineering education through the introduction of entrepreneurship into the curriculum. The cascaded metathesis process transforms low cost sodium sulfide and metal chlorides into the desired metal sulfide at room temperature with common table salt as the byproduct. However, some scientific barriers are yet to be overcome to realize the full application potential of this approach. Sulfide synthesis is guided by solvent engineering which considers the roles of solvent polarity, donor number and molecular structure on solubility and reactivity. The intrinsic properties of the resulting metal sulfides will be fully characterized, and structure-property-performance relationships will be developed for solid-state electrolytes and advanced cathodes using an array of physical and electrochemical characterization techniques. The solution-based approach will be extended to enable roll-to-roll manufacturing of the sulfide–based alloys and composite materials employed in solid state batteries.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该补助金支持有助于与金属硫化物可持续生产相关的新知识的研究，金属硫化物是许多先进技术所需的一类材料。这些材料的高成本反映了目前用于其生产和纯化的高温、能量密集型工艺。该奖项支持基础研究，为开发基于绿色化学和工程原理的基于解决方案的材料制造工艺提供所需的知识。所使用的关键试剂和溶剂在循环经济中被回收。新工艺将使金属硫化物纳米晶体在环境条件下的可扩展制造成为可能，并能够调整其尺寸和形状，以优化后续最终用途应用中的性能。这项研究的重点是对下一代电池技术至关重要的金属硫化物，解决了限制可再生电力扩大部署以遏制全球变暖所需的关键存储瓶颈。因此，这项研究的成果将有利于美国的经济和社会。这项研究涉及多个学科，包括制造，溶液化学，分离和材料科学。多学科方法将有助于扩大代表性不足的群体参与研究，并通过将创业精神引入课程，对工程教育产生积极影响。级联复分解工艺在室温下将低成本的硫化钠和金属氯化物转化为所需的金属硫化物，副产物为普通食盐。然而，要实现这一方法的全部应用潜力，还需要克服一些科学障碍。硫化物的合成受溶剂工程的指导，溶剂工程考虑了溶剂极性、供体数目和分子结构对溶解度和反应性的作用。将充分表征所得金属硫化物的固有性质，并使用一系列物理和电化学表征技术开发固态电解质和先进阴极的结构-性质-性能关系。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。