In-situ Analysis of Mass and Mechanical Changes of Interfaces and Interphases in Energy Storage Systems by Electrochemical Quartz Crystal Microbalance with Dissipation Monitoring

通过电化学石英晶体微天平和耗散监测对储能系统中界面和相间的质量和机械变化进行原位分析

• 批准号: RTI-2023-00312
• 负责人: Liu, Jian
• 金额: $ 10.17万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=761638
• 关键词: situ; Analysis; Mass; Mechanical; Changes

As we move toward an increasing electrification of society, there is a tremendous need for better-performing batteries. However, battery systems are complex and there are many processes in the charge and discharge that need to be understood to develop new materials and chemistries for more efficiency energy storage technologies. In particular, the interfaces and interphases in batteries are crucial for the lifetime, safety, and durability of the systems, but are difficult to characterize and monitor due to the nanoscale dimensions and evolving structure and chemistry during the battery operation. The requested Electrochemical Quartz Crystal Microbalance with Dissipation Monitoring (EQCM-D) is a state-of-the-art, non-invasive, and surface-sensitive technology for time-resolved and quantitative analysis of interfacial reactions and interactions at the anode-electrolyte and cathode-electrolyte interfaces in various battery systems, such as lithium-ion, zinc-ion, and solid-state batteries, and zinc-ion capacitors. The EQCM-D will provide invaluable information about the mass and mechanical properties, and the formation and evolution of interphases that otherwise cannot be extracted using other techniques. The EQCM-D will be an integral part of an in-situ characterization platform at the University of British Columbia, which will strong support the research and training programs in the design, development, and implementation of new energy storage technologies for a cleaner world.

随着社会日益电气化，我们对性能更好的电池有着巨大的需求。然而，电池系统是复杂的，在充放电过程中有许多需要了解的过程，以开发新的材料和化学物质，以实现更高效的储能技术。特别是，电池的界面和界面相对系统的寿命、安全性和耐久性至关重要，但由于纳米尺度的尺寸和电池运行过程中不断变化的结构和化学，很难表征和监测。具有耗散监测的电化学石英晶体微天平（EQCM-D）是一种最先进的、非侵入性的、表面敏感的技术，用于时间分辨和定量分析各种电池系统（如锂离子、锌离子、固态电池和锌离子电容器）中阳极-电解质和阴极-电解质界面的界面反应和相互作用。EQCM-D将提供有关质量和力学性能以及界面形成和演化的宝贵信息，否则使用其他技术无法提取这些信息。EQCM-D将成为不列颠哥伦比亚大学原位表征平台的组成部分，该平台将有力地支持设计、开发和实施新能源存储技术的研究和培训计划，以实现更清洁的世界。