Multiscale Manufacturing for Advanced Energy Storage Devices

先进储能设备的多规模制造

基本信息

批准号：
1917055
负责人：
Jonghyun Park
金额：
$ 33.79万
依托单位：
Missouri University of Science and Technology
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-09-01 至 2023-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1917055&HistoricalAwards=false
关键词：
Multiscale Manufacturing Advanced Energy Storage

项目摘要

This grant supports fundamental research that contributes new knowledge in the manufacturing of multiscale three-dimensional structures for applications such as energy storage devices. This project investigates a combination of three-dimensional micro-casting and three-dimensional (3D) printing to enable the fabrication of multi-component, porous structures and devices. Most 3D printing and micro-casting processes require high temperatures that can cause thermal damage or part distortion if not properly controlled. This research investigates room temperature processes thus avoiding damage and distortion. The multiscale manufacturing approach involves control of the microstructure and macrostructure in multi-material structures for devices such as advanced energy storage systems. When made from conductive materials, the three-dimensional porous structures have applications in energy, healthcare, biomedical, aerospace, chemical and automotive industries, which benefits the U.S. economy and society. This research involves several disciplines including advanced manufacturing, electrochemistry, control theory, and materials science. The multi-disciplinary approach helps broaden participation of women and underrepresented groups in research and positively impacts engineering education and training. The project studies an electric field-assisted 3D micro-casting process to fabricate battery electrodes combined with a 3D printing process to fabricate the separators for advanced energy storage devices such as Li-ion batteries. This novel process has the potential to overcome the limitations of anisotropic microstructures, residual stresses, poor inter-layer bonding, poor resolution, and rough surfaces in conventional manufacturing. This project studies the mechanisms of porosity formation and particle alignment during electric field-assisted micro-casting using atomistic simulations, physics-based predictive models and experimental verification. The team tests the hypothesis that rheological properties and electric field strengths are the determining factors for porosity and particle alignment in micro-cast structures and establishes relationships between process parameters and microstructural features. The project explores how micro-casting governs the macrostructure and electric-field governs the microstructure of the particle network, and how this cooperative multiscale control can improve energy and power density for energy storage devices. Further, the study investigates how local laser heating maintains the fine structures and enhances the mechanical integrity of the constituent materials. The effect of material and geometry on safety and ion transport in the 3D-printed separator is studied. The project relies on multiscale understanding and control, enabling transformative change in electrode manufacturing and engineering.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.

该赠款支持基础研究，该研究在为储能设备等应用的多尺度三维结构制造中有助于新知识。该项目研究了三维微型铸造和三维（3D）打印的组合，以实现多组分，多孔结构和设备的制造。大多数3D打印和微型铸造过程都需要高温，如果无法正确控制，可能会造成热损伤或部分失真。这项研究调查了室温过程，从而避免了损坏和失真。多尺度制造方法涉及控制高级储能系统等设备的多物质结构中的微观结构和宏结构。用导电材料制成时，三维多孔结构在能源，医疗保健，生物医学，航空航天，化学和汽车行业中都有应用，这使美国经济和社会受益。这项研究涉及几个学科，包括高级制造，电化学，控制理论和材料科学。多学科的方法有助于扩大妇女的参与和代表性不足的研究，并积极影响工程教育和培训。该项目研究了电场辅助的3D微型铸造过程，以制造电池电极与3D打印工艺相结合，以制造分离器，以用于高级储能设备，例如锂离子电池。这个新的过程有可能克服各向异性微观结构，残留应力，层间粘结差，分辨率较差以及常规制造中粗糙的表面的局限性。该项目研究了使用原子模拟，基于物理学的预测模型和实验验证的电场辅助微型铸造过程中孔隙率形成和颗粒对齐的机制。该团队检验了以下假设：流变学特性和电场强度是微型铸造结构中孔隙度和颗粒比对的决定因素，并在过程参数与微结构特征之间建立了关系。该项目探讨了微型铸造如何控制宏观结构和电场控制粒子网络的微观结构，以及该合作的多尺度控制如何改善能量存储设备的能量和功率密度。此外，该研究研究了局部激光加热如何保持精细结构并增强组成材料的机械完整性。研究了材料和几何形状对3D打印分离器中安全和离子传输的影响。该项目依赖于多尺度的理解和控制，实现了电极制造和工程的变革性变化。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛的影响评估标准通过评估来获得支持的。