SBIR Phase I: Eco-friendly Production of Carbon Nanosheets for Ultra High Energy Storage Electrode Application

这个小企业创新研究（SBIR）项目的更广泛的影响/商业潜力是应用植物基石墨烯产品作为电池材料，以增加能量存储密度，减少充电时间并延长电池寿命。对社会的好处是，植物基材料可以促进电动汽车的采用，降低可再生能源的电网存储成本，潜在地提供更大的能源安全。该材料的成本效益将促进石墨烯在其他先进技术领域的广泛应用，如复合材料、导电油墨、可印刷电子、催化、传感器和生物医学设备，从而推动纳米技术的前沿。该SBIR一期项目建议开发一种绿色可持续的工艺，使用丰富的植物材料作为投入，生产具有优越物理属性的极高纯度石墨烯。这项可行性研究将证明，高质量的SP2Hybrid石墨烯可以用植物为基础的原材料生产，成本低于目前的石墨烯生产方法，并且具有环境可持续性。目前石墨烯的生产，如液体/化学剥离，使用来自不可再生资源的原料。拟议的工艺利用大量的木薯作物作为原料，在美国和海外作为商品出售。SP2Hybrid石墨烯性能的初步样品已经过第三方验证，其表面积（2956 m2/g）是现有溶液的4倍，孔体积（5.0 cm3/g）是现有溶液的5倍，作为电池和超级电容器的电极材料具有更好的性能。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。

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) project is applying a plant-based graphene product as a battery material to increase energy storage density, decrease charging times and extend battery life. The benefit to society is that the plant-based material may facilitate adoption of electric vehicles and reduce the grid storage cost of renewable energy, potentially providing greater energy security. The proposed material's cost-efficient nature will facilitate broader adoption of graphene in other advanced technology areas such as composites, conductive inks, printable electronics, catalysis, sensors, and biomedical devices, thereby pushing nanotechnology frontiers.This SBIR Phase I project proposes to develop a green sustainable process using an abundant plant material as input and producing extremely high purity graphene with superior physical attributes. This feasibility research will demonstrate that high-quality SP2Hybrid graphene can be manufactured from a plant-based raw material at lower costs than current methods of graphene production and is environmentally sustainable. Current production of graphene, such as liquid/chemical exfoliation, uses starting materials derived from non-renewable resources. The proposed process utilizes an abundant cassava crop as feedstock sold as commodity in the US and overseas. Preliminary samples of SP2Hybrid graphene properties have been validated by third parties to have 4X the surface area (2956 m2/g) and up to 5X (5.0 cm3/g) the pore volume of current solutions, offering better performance as an electrode material in batteries and supercapacitors.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.