CAREER: Laser modified transport in electrochemical materials

职业：电化学材料中的激光改性传输

• 批准号: 0548147
• 负责人: Craig Arnold
• 金额: $ 50万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-01 至 2012-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0548147&HistoricalAwards=false
• 关键词: CAREER; Laser; modified; transport; electrochemical

TECHNICAL EXPLANATIONThis project will investigate multiscale mechanisms underlying the electrochemical and physical modification of porous materials undergoing laser irradiation. Laser based approaches to materials modifications in electrochemical systems enable an essentially new dimension to processing, since they affect material structures and properties on multiple length scales. The proposed research focuses on the fundamental mechanisms by which laser processing affects electrochemical performance on the micro and nanoscale and the fundamental mechanisms of laser interactions with multiphase materials. Experiments combine laser processing of selected systems with detailed structural and electrochemical characterization and the development of corresponding theoretical models. The successful implementation of this research will not only have a practical effect on the ability to optimize battery materials in a well-defined and controlled fashion, but also extend that understanding into other mesoporous and multiphase material systems such as biomaterials, polymers, composites, ceramics, colloids, and other rapidly growing areas in complex materials. The PI will be active at the university level, developing courses and mentoring both graduate and undergraduate students across traditional disciplines; at the professional and international level by hosting African researchers under the NSF US-Africa Materials Research Institute program who will participate in these research objectives; and at the local and national, level by developing community outreach modules and workshops for local science museums and K-12 classrooms.NON-TECHNICAL EXPLANATIONExisting and future needs in portable energy call for advanced battery and electrochemical storage devices with improved performance in terms of specific power, capacity, cycle life, and high rate behavior. Developments in processing have led to new materials, and with them, the need for a deeper understanding of the underlying scientific issues that affect the device performance. In this project, novel laser-based approaches are used to affect material structures and properties on multiple length scales. Through a detailed study of the laser modification processes in these complex materials, and the resulting electrochemical properties, this research establishes the important relationship between processing and performance in this technologically significant class of materials. In combining research from the fields of laser materials processing and electrochemical energy storage, this project will provide significant new knowledge to both communities, and will have a practical effect on the ability to optimize battery materials in a well-defined and controlled fashion. The inherently interdisciplinary nature of this work, combined with the cultural familiarity of batteries in general, enables an integrated educational component that is accessible to students from all backgrounds and educational levels.

技术解释该项目将调查经过激光辐照的多孔材料的电化学和物理修饰的多尺度机制。基于激光的电化学系统中材料修饰的方法为处理基本上是一个新的维度，因为它们会影响多个长度尺度上的材料结构和特性。 拟议的研究重点是激光处理影响微观和纳米级的电化学性能以及激光与多相材料的基本机制的基本机制。实验将所选系统的激光处理与详细的结构和电化学表征以及相应理论模型的发展结合在一起。 这项研究的成功实施不仅将对以明确和控制的方式优化电池材料的能力有实际影响，而且还将其扩展到其他中异端和多相材料系统，例如生物材料，聚合物，复合材料，陶瓷，胶体，胶体，以及复杂材料中其他快速生长的区域。 PI将在大学一级活跃，在传统学科中开发课程并指导研究生和本科生；在专业和国际层面，通过NSF US-Africa材料研究所计划的非洲研究人员将参与这些研究目标；在本地和国家，通过开发社区外展模块和研讨会，为当地科学博物馆和K-12教室开发。Non-technical ExpellationAxanationExanting Exanationsistist和Protable Energy的未来需求要求高级电池和电化学存储设备，并在特定的功率，能力，周期寿命以及高利率行为方面具有改善性能，并提高性能。 加工的发展导致了新材料，随着它们，需要更深入地了解影响设备性能的基本科学问题。 在这个项目中，新颖的基于激光的方法用于影响多个长度尺度上的材料结构和特性。 通过对这些复杂材料中激光修饰过程以及所得的电化学特性的详细研究，该研究确定了在这种具有技术意义的材料类别中的处理与性能之间的重要关系。 在将激光材料处理和电化学能源存储领域的研究结合在一起时，该项目将为两个社区提供重要的新知识，并将对以明确和控制的方式优化电池材料的能力产生实际影响。 这项工作的固有跨学科性质，结合了整个电池的文化熟悉程度，可以实现一个综合的教育组成部分，从各个背景和教育水平都可以访问该综合教育组成部分。