SBIR Phase I: Investigate Process-Structure-Property Relationship of Nano-Layered Coatings of Binderless Electrodes by a Nozzle-less Spray Coating Technique

SBIR 第一阶段：通过无喷嘴喷涂技术研究无粘合剂电极纳米层状涂层的工艺-结构-性能关系

• 批准号: 2136777
• 负责人: David Noye
• 金额: $ 25.6万
• 依托单位: NANORESEARCH, INC.
• 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: 2022-03-15 至 2023-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2136777&HistoricalAwards=false
• 关键词: SBIR; Phase; Investigate; Process; Structure

The broader impact of this Small Business Innovation Research (SBIR) Phase I project is the development of a manufacturing process innovation that overcomes volume expansion problems of batteries made by conventional manufacturing processes. These expansion problems limit the broad adoption of high performance, safer, naturally abundant, environmentally friendly, and cheaper raw materials for advanced batteries in applications such as modern electric vehicles and powered aircraft. The proposed project develops a drop-in technology for existing manufacturing infrastructure with the potential to significantly reduce the environmental waste of conventional manufacturing processes.The SBIR Phase I project will investigate the binderless electrode manufacturing using nano-layered coatings deposited using a nozzle free spray coating technique. The technical challenges include contaminated electrodes with filter residues; non-uniform electrode thickness, density, and porosity; poor repeatability; and lengthy filter removal process, inhibiting scale-up of the vacuum filtration method for making binderless electrodes. This project will validate a new ultrasonic spray coating technique for scaling the production of binderless electrodes. The scope of the research includes: designing surfactant removal and homogeneous dispersion of nanocomposite mixture solution subsystems, synthesizing binderless electrodes with the innovation, and characterizing electrode prototypes. The project's tasks (using an iron oxide anode for demonstration) include selecting precursor materials with appropriate morphologies and sizes for effective bonding between nanocomposites and adhesion on current collector; designing binderless electrode structures; computer modeling and simulation to optimize parameters of binderless electrode structure, electrode nanocomposite constituent morphologies and sizes; advancing surfactant removal, homogeneous dispersion, and thermal=pressure subsystems; developing ultrasonic nozzle-less spray coatings to make prototype electrodes; and characterizing the mechanical and electrochemical properties of the binderless electrode prototypes.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.

小企业创新研究（SBIR）第一阶段项目的更广泛影响是开发了一种制造工艺创新，克服了传统制造工艺制造的电池体积膨胀问题。这些膨胀问题限制了高性能、更安全、天然丰富、环保和更便宜的原材料在现代电动汽车和动力飞机等应用中的广泛采用。 该项目为现有的制造基础设施开发了一种直接技术，有可能大大减少传统制造工艺的环境浪费。SBIR第一阶段项目将研究使用无喷嘴喷涂技术沉积纳米层涂层的无粘合剂电极制造。技术挑战包括被过滤残留物污染的电极;不均匀的电极厚度、密度和孔隙率;差的可重复性;以及冗长的过滤器去除过程，抑制了用于制造无粘合剂电极的真空过滤方法的规模扩大。该项目将验证一种新的超声波喷涂技术，用于扩大无粘结剂电极的生产。研究范围包括：设计纳米复合材料混合物溶液子系统的表面活性剂去除和均匀分散，用创新方法合成无粘结剂电极，以及表征电极原型。项目的任务（以氧化铁阳极为例）包括：选择具有合适形貌和尺寸的前驱体材料，以实现纳米复合材料之间的有效结合和在集流体上的粘附;设计无粘结剂电极结构;计算机建模和模拟，以优化无粘结剂电极结构、电极纳米复合材料组分形貌和尺寸的参数;推进表面活性剂去除、均匀分散和热压子系统;开发超声波无摩擦喷涂涂层以制造原型电极;该奖项反映了NSF的法定使命，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，认为值得支持。