CAREER: Microstructural Engineering of Solid Composite Electrolytes through Process Manipulation

职业：通过工艺操纵进行固体复合电解质的微观结构工程

• 批准号: 2237878
• 负责人: Jena McCollum
• 金额: $ 50.92万
• 依托单位: University of Colorado at Colorado Springs
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-07-01 至 2028-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2237878&HistoricalAwards=false
• 关键词: CAREER; Microstructural; Engineering; Solid; Composite

This Faculty Early Career Development (CAREER) grant supports research that will provide critical, fundamental relationships between processing and microstructure in solid electrolyte systems. Findings under this award will promote national prosperity through advanced energy system production in many fields ranging from energetic materials to structural batteries. Structural batteries (i.e., a battery that can bear mechanical load) are an attractive option to improve electric vehicle viability as they replace hazardous liquid electrolytes with a solid counterpart. These solid electrolytes typically combine electroactive polymers and ceramics to enhance battery durability and electrical performance. However, the production of highly conductive, mechanically robust solid-state batteries is currently impossible due to the significant knowledge gaps concerning the manufacturing history – microstructure link. This award supports integrated experiments and modeling to uncover the impact of manufacturing history (e.g., temperature, cure conditions, and shear rate) on the interface between the electroactive polymer and ceramic in solid composite electrolytes. This interface determines how an electrolyte composite behaves mechanically and ionically. By understanding interface formation mechanisms, structural battery performance can be designed during the manufacturing stage, thus informing industrial processes at all scales to tune and enhance structural battery performance through microstructural manipulation. This project also aims to strengthen science, technology, engineering, and math (STEM) career accessibility by introducing caregivers to manufacturing science and increasing accessibility of undergraduate research to this population that faces high barriers. This will be accomplished with course-based undergraduate research experiences, enhancing caregiver support for undergraduate research scholars, and reaching into the community to support parents of first-generation STEM scholars.This project aims to unveil a mechanistic understanding of microstructural development in controlled manufacturing conditions to tune bulk response in composite electrolytes. The research objectives will be accomplished through a multi-scale investigation to fill knowledge gaps in the manufacturing-microstructure-performance lifecycle. The research team will perform coupled rheology and spectroscopy to examine molecular interactions between polymer and ceramic regarding interface formation, utilize atomic force microscopy techniques to quantify interface size both mechanically and electrically, and perform ionic conductivity measurements on electrolyte specimens under mechanical load to tie nano-scale effects to bulk performance.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.

这种教师早期职业发展（职业）授予支持研究，将在固体电解质系统中提供处理和微观结构之间的重要，基本关系。该奖项下的发现将通过在能源材料到结构电池的许多领域的先进能源系统生产来促进国家繁荣。结构性电池（即可以承受机械负载的电池）是提高电动汽车生存能力的有吸引力的选择，因为它们用固体液体替代有害的液体电解质。这些固体电解质通常结合电活性聚合物和陶瓷，以提高电池耐用性和电性能。但是，由于有关制造历史记录的显着知识差距 - 微结构链接，目前不可能生产高导电性，机械稳健的固态电池。该奖项支持集成的实验和建模，以揭示制造历史记录（例如温度，治疗条件和剪切速率）对固体复合电解质中电活性聚合物和陶瓷之间界面的影响。该界面确定电解质复合材料在机械和离子上的行为。通过了解界面形成机制，可以在制造阶段设计结构电池性能，从而通过微观结构操作来告知各个尺度的工业过程，从而增强结构电池的性能。该项目还旨在通过向护理人员介绍制造科学并将本科研究的可访问性介绍给面临高障碍的人群，从而加强科学，技术，工程和数学（STEM）职业可及性。这将通过基于课程的本科研究经验来实现，增强了对本科研究学者的护理人员的支持，并进入社区，以支持第一代STEM学者的父母。该项目旨在揭示对受控制造条件中的微观结构发展的机械理解，以在复合电解质中调整体积散装反应。研究目标将通过多尺度投资实现，以填补制造 - 微观结构 - 性能生命周期中的知识差距。研究小组将进行流变学和光谱概率，以检查聚合物与陶瓷有关界面形成的分子相互作用，利用原子力显微镜技术在机械上和电气电导率上量化nano统计效果，并在机械效果下，在机械上和电气电导率测量范围内，用原子力显微镜技术来量化界面的大小，并在机械上进行了电力电导率。使用基金会的智力优点和更广泛的影响标准，认为通过评估被认为是宝贵的支持。