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STTR Phase I: Novel Batteries Based on Functionalized Hexagonal Boron Nitride with High Energy, High Power, Long Cycle Life, and Thermal Stability

STTR第一期：基于功能化六方氮化硼的高能量、高功率、长循环寿命和热稳定性的新型电池

基本信息

批准号：
2109286
负责人：
Karoly Nemeth
金额：
$ 25.6万
依托单位：
BORON NITRIDE POWER LLC
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：
2022-01-15 至 2023-04-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2109286&HistoricalAwards=false
关键词：
STTR Phase Novel Batteries Based

项目摘要

The broader impact/commercial potential of this Small Business Technology Transfer (STTR) Phase I project is the development of lightweight, thermally safe batteries with high energy densities that can be charged fast, last a long time, are composed of environmentally benign materials, and can store energy at a low cost. Such batteries would enable the large-scale penetration of long-range electric cars and other electric vehicles, including airplanes and drones in transportation. This process reduces environmental pollution and leads to greater energy efficiency.This STTR Phase I project proposes to use boron nitride based layered ceramic materials as a means of storing electrochemical energy in solid state batteries. This project enhances scientific and technological understanding on the design of advanced functional materials for energy storage at the atomic level. To achieve the targeted high performance energy storage at the macroscopic level, the underlying material structures must be carefully selected on the atomic and molecular levels. Two-dimensional materials, such as graphene or hexagonal boron nitride, may contain functional groups that can be reversibly reduced and oxidized and can be utilized as electroactive species in cathodes of rechargeable batteries. The great advantage of these materials is that they can realize simultaneously high energy and power density for thousands of charging/discharging cycles as demonstrated in graphene oxide batteries with lithium and sodium anodes. Graphene oxide is, however, thermally unstable. The project proposes to substitute graphene oxide with functionalized boron nitride in order to achieve thermal stability while preserving performance. Furthermore, the functionalized boron nitride is also capable to play the role of a solid electrolyte in addition to being an electroactive species. Particular focus will be made on synthesizing -OBF3 functionalized boron nitride. This functional group occurs as a Lewis adduct of surface oxides (such as graphene oxide or boron nitride oxide) with BF3 (an electrolyte component) and is particularly promising as a compact electroactive species and electrolyte.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.

这个小型企业技术转让（STTR）第一阶段项目的更广泛的影响/商业潜力是开发具有高能量密度的轻质热安全电池，这些电池可以快速充电，使用时间长，由环保材料组成，并且可以以低成本存储能量。这种电池将使远程电动汽车和其他电动交通工具（包括飞机和无人机）大规模普及。这一过程减少了环境污染，提高了能源效率。这个STTR一期项目提出使用氮化硼基层状陶瓷材料作为存储固态电池电化学能量的手段。该项目提高了在原子水平上设计用于储能的先进功能材料的科学和技术认识。为了在宏观水平上实现目标的高性能储能，必须在原子和分子水平上仔细选择基础材料结构。二维材料，如石墨烯或六方氮化硼，可能含有可可逆还原和氧化的官能团，可以用作可充电电池阴极中的电活性物质。这些材料的巨大优势在于，它们可以同时实现数千次充电/放电循环的高能量和功率密度，这在具有锂和钠阳极的氧化石墨烯电池中得到了证明。然而，氧化石墨烯是热不稳定的。该项目提出用功能化氮化硼代替氧化石墨烯，以在保持性能的同时实现热稳定性。此外，功能化的氮化硼除了是电活性物质外，还能够发挥固体电解质的作用。重点研究了-OBF3功能化氮化硼的合成。这种官能团以表面氧化物（如氧化石墨烯或氮化硼氧化物）与BF3（一种电解质成分）的路易斯加合物的形式出现，作为一种紧凑的电活性物质和电解质尤其有前景。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。