STTR Phase I: Liquefied Gas Electrolytes for High Energy Density Energy Storage Devices

STTR 第一阶段：用于高能量密度储能设备的液化气体电解质

• 批准号: 1721646
• 负责人: Cyrus Rustomji
• 金额: $ 22.5万
• 依托单位: South 8 Technologies, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2018-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1721646&HistoricalAwards=false
• 关键词: STTR; Phase; Liquefied; Gas; Electrolytes

This STTR Phase I project is focused on improving the energy density, safety and ultra-low temperature capability of battery devices. Conventional batteries fall short of these critical requirements for next-generation electric vehicle technologies, which are necessary to reduce emissions and the nation?s reliance on fossil fuel imports. Although the eventual goal of the proposed technology is to enter automotive markets, it may have an equally strong impact for applications in other areas requiring energy storage at low-temperatures. For example, multiple efforts aim to enable high-atmosphere telecommunications to further global connectivity to the internet, particularly in remote locations of the globe in third world countries whose standard of living could be enhanced with greater communication and education. Further, the proposed chemistry could also potentially be useful in electrochemical deposition of difficult to plate metals such as titanium or silicon for use in the aerospace, medical or high tech industries, areas which will ensure the U.S. remains internationally competitive while increasing job opportunity and tax revenue from emerging technologies. It is also a priority of this STTR to coordinate with the partner research institution to providing training and internship opportunities to graduate and undergraduate students from underrepresented communities in this research work to further improve our national industry by training the next generation workforce to better be prepared for industry and higher-education.This project aims to develop a novel electrolyte chemistry for next generation energy storage devices which has potential to address these three critical areas (energy density, safety, wide temperature operation). While conventional electrolyte chemistry commonly uses solvent solutions which are typically liquid at room temperature, this project will explore the use of solvent solutions which are gaseous at room temperature and liquefied under moderate pressures. Preliminary work on this novel electrolyte chemistry has shown high performance at ultra-low temperatures, enabling many high-atmosphere and aerospace applications without need for additional thermal management and engineering. In addition, a reversible battery shut-down mechanism at high temperatures, inherent in the electrolyte chemistry, allow for strong mitigation of thermal runaway for improved battery safety. Finally, high potential for a substantial increase in energy density with use of next-generation electrode materials has been shown to be possible. The focus of this project will be to develop these novel electrolytes and demonstrate superior performance in a full cell device with application to the automotive industry and low-temperature markets. The underlying fundamental chemistry with these new materials is a relatively new field and it is hoped these materials will lead to advances in next-generation energy storage devices and other technologies, leading to new industries, job growth and beyond.

STTR第一阶段项目的重点是提高电池设备的能量密度、安全性和超低温能力。传统电池达不到下一代电动汽车技术的这些关键要求，而这些技术是减少排放和国家发展所必需的。中国依赖化石燃料进口。虽然这项技术的最终目标是进入汽车市场，但它可能对其他需要低温储能的领域产生同样强大的影响。例如，多方努力的目的是使高层大气电信能够促进全球与互联网的连通性，特别是在地球仪的偏远地区的第三世界国家，这些国家的生活水平可以通过更多的通信和教育来提高。此外，所提出的化学方法还可能用于电化学沉积难以电镀的金属，如钛或硅，用于航空航天，医疗或高科技行业，这些领域将确保美国保持国际竞争力，同时增加新兴技术的就业机会和税收。这也是这个STTR的优先事项，与合作伙伴研究机构协调，为来自代表性不足社区的研究生和本科生提供培训和实习机会，通过培训下一代劳动力，进一步改善我们的民族工业，更好地为工业和高等教育做好准备。该项目旨在为下一代能量存储设备开发一种新型电解质化学，该电解质化学具有解决这三个关键领域（能量密度、安全性、宽温度操作）的潜力。虽然传统的电解质化学通常使用在室温下通常为液体的溶剂溶液，但本项目将探索使用在室温下为气态并在中等压力下液化的溶剂溶液。这种新型电解质化学的初步工作已经显示出在超低温下的高性能，使许多高大气和航空航天应用无需额外的热管理和工程。此外，电解质化学中固有的高温下可逆电池关闭机制允许强烈缓解热失控，以提高电池安全性。最后，使用下一代电极材料大幅增加能量密度的高潜力已被证明是可能的。该项目的重点将是开发这些新型电解质，并在全电池设备中展示上级性能，并应用于汽车工业和低温市场。这些新材料的基础化学是一个相对较新的领域，希望这些材料将导致下一代储能设备和其他技术的进步，从而带来新的产业，就业增长等。