Solid Polymer Thin Film Electrolytes to Enable 3D Lithium Ion Batteries

标题：固体聚合物薄膜电解质实现3D锂离子电池微电子器件和微机电系统（MEMS）的小型化使数十亿美元的产业得以发展，这些产业将显著的技术商业化，包括分布式传感器、植入式生物医学设备、可穿戴电子产品和“物联网”。三维锂离子电池（3D电池）被设想为非常灵活的能量存储设备，为下一代无处不在的微电子设备和MEMS提供动力。3D电池的制造需要在超薄固态电解质的制备方面取得突破。本项目的重点是通过化学气相沉积（iCVD）技术来理解和控制聚合物薄膜的合成，从而实现3D电池电解质材料的精确制造。该项目的一个关键科学目标是了解如何通过iCVD综合控制超薄聚合物电解质的化学、物理和电化学特性，以实现固态3D锂离子电池中稳定、可逆的电化学循环。这些超薄聚合物电解质随后将集成到二维薄膜电池中，以便进一步了解储能电极和薄膜加工对材料的要求。最终目标是制造完整的、完整的3D电池，并研究3D结构对电化学性能和相关效应的影响。将对材料和电池设计进行优化，以最大化3D电池的性能。从提出的研究中出现的对基本结构-性能-功能关系的新见解可能具有重大的潜力，可以推进3D电池的制造以及广泛的其他设备。PI计划培养研究生，让本科生参与研究，并为本科反应工程和反应堆设计课程开发新的iCVD模块。一项提议的拓展工作将侧重于吸引来自罗切斯特市学区的未被充分代表的少数族裔学生。

1604471 PI: TenhaeffTitle: Solid Polymer Thin Film Electrolytes to Enable 3D Lithium Ion BatteriesThe miniaturization of microelectronic devices and microelectromechanical systems (MEMS) has enabled the development of multi-billion dollar industries that commercialized remarkable technologies, including distributed sensors, implantable biomedical devices, wearable electronics, and "the internet of things". Three-dimensional lithium ion batteries (3D batteries) are envisioned as incredibly flexible energy storage devices to power the next generation of ubiquitous microelectronic devices and MEMS. The fabrication of 3D batteries requires breakthroughs in the preparation of ultrathin, solid-state electrolytes. This project focuses on the understanding and controlling polymer thin film synthesis via initiated chemical vapor deposition (iCVD) to enable precise fabrication of electrolyte materials for 3D batteries. A key scientific objective of the proposed project is to understand how the chemical, physical, and electrochemical properties of ultrathin polymer electrolytes must be synthetically controlled via iCVD to achieve stable, reversible electrochemical cycling in solid-state 3D lithium ion batteries. These ultrathin polymer electrolytes will be subsequently integrated into two-dimensional thin film batteries in order to further understand materials requirements imposed by the energy storage electrodes and thin film processing. The ultimate objective is to fabricate complete, full 3D battery cells and study the influence of 3D architectures on electrochemical performance and correlated effects. Optimization of materials and cell designs will be performed to maximize 3D battery performance. New insights into fundamental structure-property-function relations emerging from the proposed study may have significant potential to advance the fabrication of 3D batteries as well as a wide range of other devices. The PI plans to train graduate students, engage undergraduate students in research, and develop a new iCVD module for the undergraduate Reaction Engineering and Reactor Design course. A proposed outreach effort will focus on engaging underrepresented minority students from the Rochester City School District.