Multi-Material, Multi-Layer Devices Enabled by High Aspect Ratio Micro-Extrusion

高纵横比微挤压实现多材料、多层器件

• 批准号: 1331735
• 负责人: Leon Shaw
• 金额: $ 15万
• 依托单位: Illinois Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1331735&HistoricalAwards=false
• 关键词: Multi; Material; Layer; Devices; Enabled

In this project, studies of micro-extrusion of pastes through high aspect ratio (HAR) micro-nozzles to fabricate multi-material, multi-layer (M3L) devices will be conducted. The capability for layer-by-layer fabrication with composition variation within each layer will be investigated. To provide unmatched capability for fabricating novel architecture of M3L devices not achievable today, extrusion behavior of various sizes of HAR micro-nozzles starting from millimeters all the way down to 25 micrometers will be studied. Novel three-dimensional (3D) supercapacitors with high energy densities will be used as a model system to investigate the challenges of the M3L technology. As such, extensive efforts will be made to study and establish the proper formulations of the desired pastes that can be micro-extruded using HAR micro-nozzles and have pseudoplastic characteristics to form a large layer with the desired thickness and a uniform composition. The 3D supercapacitors fabricated will be characterized structurally and electro-chemically to demonstrate the unmatched power of the M3L technology in fabricating durable, low cost, high performance devices.M3L technology will reduce part count, part handling, part transportation and part storage because only one processing step is needed. Furthermore, the M3L technology will offer new manufacturing capabilities to produce M3L devices with the composition control locally at the micrometer level for the desired functionalities and the dimension control spanning over 5 orders of magnitude for high fabrication rates. It is expected that the M3L technology proposed can compete with conventional manufacturing methods for cost effectiveness, not to mention that the M3L technology can fabricate novel devices with new functionalities, not achievable via today's manufacturing technology. This project will have a substantial impact on manufacturing technology. It can greatly improve productivity, reduce the production cost, and enhance the U.S. manufacturing competitiveness. This project will also provide an excellent education and training opportunity to one graduate student and many undergraduate students in the areas of manufacturing and alternative energy.

在该项目中，将研究通过高深宽比（HAR）微喷嘴对浆料进行微挤出，以制造多材料、多层（M3L）器件。将研究每层内成分变化的逐层制造能力。为了提供无与伦比的能力来制造目前无法实现的新型 M3L 器件架构，我们将研究从毫米一直到 25 微米的各种尺寸的 HAR 微喷嘴的挤出行为。具有高能量密度的新型三维 (3D) 超级电容器将用作模型系统来研究 M3L 技术的挑战。因此，我们将做出广泛的努力来研究和建立所需浆料的​​正确配方，这些浆料可以使用 HAR 微喷嘴进行微挤出，并具有假塑性特性，以形成具有所需厚度和均匀成分的大层。所制造的 3D 超级电容器将在结构和电化学方面进行表征，以展示 M3L 技术在制造耐用、低成本、高性能器件方面无与伦比的能力。M3L 技术将减少零件数量、零件处理、零件运输和零件存储，因为只需要一个处理步骤。此外，M3L 技术将提供新的制造能力来生产 M3L 器件，在微米级进行局部成分控制以实现所需的功能，并进行超过 5 个数量级的尺寸控制以实现高制造速率。预计所提出的M3L技术可以在成本效益方面与传统制造方法竞争，更不用说M3L技术可以制造具有新功能的新颖器件，这是通过当今的制造技术无法实现的。该项目将对制造技术产生重大影响。它可以大大提高生产率，降低生产成本，增强美国制造业的竞争力。该项目还将为制造和替代能源领域的一名研究生和多名本科生提供良好的教育和培训机会。