Multiscale Manufacturing for Advanced Energy Storage Devices

先进储能设备的多规模制造

• 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

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.

这笔赠款支持基础研究，这些研究为储能设备等应用的多尺度三维结构的制造贡献了新的知识。该项目研究三维微铸造和三维(3D)打印的组合，以实现多组分、多孔结构和器件的制造。大多数3D打印和微铸造工艺需要高温，如果控制不当，可能会导致热损坏或零件变形。这项研究调查了室温过程，从而避免了损坏和变形。多尺度制造方法包括对先进储能系统等设备的多材料结构中的微观结构和宏观结构进行控制。当由导电材料制成时，三维多孔结构在能源、医疗保健、生物医学、航空航天、化工和汽车工业中有应用，这将使美国经济和社会受益。这项研究涉及多个学科，包括先进制造、电化学、控制理论和材料科学。多学科方法有助于扩大妇女和代表性不足群体对研究的参与，并对工程教育和培训产生积极影响。该项目研究了一种电场辅助的3D微铸造工艺来制造电池电极，并结合3D打印工艺来制造用于锂离子电池等先进储能设备的隔膜。这种新工艺有可能克服传统制造中各向异性微结构、残余应力、层间结合差、分辨率差和表面粗糙的限制。本课题采用原子模拟、物理预测模型和实验验证相结合的方法，对电场辅助微铸造过程中气孔和颗粒取向的形成机理进行了研究。该团队测试了流变性和电场强度是微铸造结构中气孔率和颗粒取向的决定因素的假设，并建立了工艺参数和微观结构特征之间的关系。该项目探索了微观铸造如何控制宏观结构，电场如何控制颗粒网络的微观结构，以及这种协同的多尺度控制如何提高储能设备的能量和功率密度。此外，该研究还探讨了局部激光加热如何保持材料的精细结构和提高材料的机械完整性。研究了材料和几何形状对3D打印分离器的安全性和离子输运的影响。该项目依赖于多尺度的理解和控制，能够实现电极制造和工程的变革性变化。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Impact of ultrathin coating layer on lithium-ion intercalation into particles for lithium-ion batteries

• DOI: 10.1016/j.cej.2022.135565
• 发表时间: 2022-03
• 期刊: Chemical Engineering Journal
• 影响因子: 15.1
• 作者: Yufang He;Hiep Pham;Xinhua Liang;Jonghyun Park

Enabling Ultrathick Electrodes via a Microcasting Process for High Energy and Power Density Lithium‐Ion Batteries

• DOI: 10.1002/aenm.202201353
• 发表时间: 2022-07
• 期刊: Advanced Energy Materials
• 影响因子: 27.8
• 作者: T. Plateau;Hiep Pham;Yaqi Zhu;M. Leu;Jonghyun Park