SBIR Phase II: High Energy Density Lithium-ion Battery Cells With Graphenic Anodes

SBIR 第二阶段：采用石墨阳极的高能量密度锂离子电池

• 批准号: 2034703
• 负责人: Tereza Paronyan
• 金额: $ 99.99万
• 依托单位: Hexalayer, LLC
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-15 至 2024-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2034703&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Energy; Density

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2).The broader impact/commercial potential of this Small Business Innovation Research (SBIR) project is the development and adoption of next generation portable energy storage devices. Lithium-ion batteries are the most common energy storage technology for a wide variety of applications. Most recently, they have been adopted by small to medium sized Unmanned Aerial Systems (UAS) and electric vehicles (EV). The weight carrying capacity and flight/operating time and range of these UAS and EV are issues mainly dependent on battery components and materials. With the proposed lithium-ion battery technology, high-capacity, lightweight, and advanced batteries may store significantly more energy without increasing their weight. The development and integration of the next generation battery technology may significantly increase the performance of battery powered vehicles and their adoption by society. This technology has the potential to have a drastic commercial impact in the UAS/drone industry; For example, with successful batteries, medicine, blood, and organs can be quickly delivered to remote locations on unmanned platforms. Utility workers may be able to identify pipeline leaks or transmission line damages in advance of an accident and packages may be delivered faster, with significantly less carbon footprint, along with myriad of other applications.This SBIR Phase II project seeks to develop high capacity, lightweight lithium-ion battery (LIB) cells with a novel carbon-based anode component. Existing LIBs still utilize graphite with additives as the primary anode material due to their ability to restore the charge and provide consistency in voltage. However, graphite's limited capacity (theoretically, 372 mAh/g) prohibits the development of long lasting, higher energy density (over 340 Wh/kg) LIBs. Graphite's internal structure limits sufficient lithium diffusion into interlayer spaces. This project offers a new class of higher energy density (over 500 Wh/kg) LIBs, with an innovative multilayer graphenic anode. Replacing graphite with the multilayer graphenic anode offers a solution in overcoming the issue of the limited capacity of the carbon anode. This patent-pending, commercially feasible, only carbon-based anode has the unique capability of an intense lithium (Li) intercalation within its networks. The large Li/electrolyte interface contributes enhanced charge-transfer kinetics, resulting in effective charge/discharge cycling throughout hundreds of cycles with over 1500 mAh/g specific capacity.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.

该奖项全部或部分由2021年美国救援计划法案（公法117-2）资助。该小型企业创新研究（SBIR）项目的更广泛影响/商业潜力是下一代便携式储能设备的开发和采用。 锂离子电池是各种应用中最常见的储能技术。最近，它们已被中小型无人机系统（UAS）和电动汽车（EV）采用。这些UAS和EV的重量承载能力和飞行/运行时间和范围主要取决于电池组件和材料。 利用所提出的锂离子电池技术，高容量、轻质和先进的电池可以在不增加重量的情况下存储更多的能量。下一代电池技术的开发和集成可能会显着提高电池动力车辆的性能及其社会的采用。该技术有可能对无人机/无人机行业产生巨大的商业影响;例如，通过成功的电池，药物、血液和器官可以在无人平台上快速运送到远程地点。公用事业工作人员可以在事故发生前识别管道泄漏或输电线路损坏，包裹可以更快地交付，并显著减少碳足迹，沿着其他无数应用。SBIR第二阶段项目旨在开发具有新型碳基阳极组件的高容量轻质锂离子电池（LIB）。现有的LIB仍然利用具有添加剂的石墨作为主要阳极材料，因为它们能够恢复电荷并提供电压的一致性。然而，石墨的有限容量（理论上，372 mAh/g）阻止了持久的、更高能量密度（超过340 Wh/kg）的LIB的开发。石墨的内部结构限制了锂向层间空间的充分扩散。该项目提供了一种新的更高能量密度（超过500 Wh/kg）的LIB，具有创新的多层石墨烯阳极。 用多层石墨烯阳极代替石墨提供了克服碳阳极的有限容量的问题的解决方案。这种正在申请专利的，商业上可行的，只有碳基阳极具有在其网络中强烈嵌入锂（Li）的独特能力。大的锂/电解质界面有助于增强电荷转移动力学，从而在数百次循环中实现有效的充电/放电循环，比容量超过1500 mAh/g。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。