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，对性能更好的电池的需求巨大。然而，电池系统很复杂，需要了解充电和放电过程中的许多过程，以开发新材料和化学物质，以实现更高效的储能技术。特别是，电池中的界面和相间对于系统的寿命、安全性和耐用性至关重要，但由于纳米级尺寸以及电池运行过程中不断变化的结构和化学性质，很难表征和监测。所要求的具有耗散监测功能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技术，用于对各种电池系统（例如锂离子电池、锌离子电池和固态电池）中阳极-电解质和阴极-电解质界面的界面反应和相互作用进行时间分辨和定量分析， 和锌离子电容器。 EQCM-D 将提供有关质量和机械特性以及界面形成和演化的宝贵信息，否则无法使用其他技术提取这些信息。 EQCM-D 将成为不列颠哥伦比亚大学现场表征平台的组成部分，该平台将有力支持新能源存储技术的设计、开发和实施方面的研究和培训项目，以创造更清洁的世界。