Collaborative Research: Catholyte Molecular Design For Non-aqueous Mg-organic Hybrid Redox Flow Batteries

合作研究：非水镁有机混合氧化还原液流电池的阴极电解液分子设计

• 批准号: 2247407
• 负责人: TAO GAO
• 金额: $ 33.98万
• 依托单位: University of Utah
• 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 2026-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2247407&HistoricalAwards=false
• 关键词: Collaborative; Research; Catholyte; Molecular; Design

With support of the Chemical Structure, Dynamics & Mechanisms-B Program of the Chemistry Division, Tao Gao of the Department of Chemical Engineering at the University of Utah, and Chao Luo at the Department of Chemistry and Biochemistry at George Mason University are developing new classes of organic molecules for energy storage technologies. The objectives of this project are to design, synthesize and characterize core-shell structured organic molecules, to gain a fundamental understanding of the structure-property-performance correlation of synthesized organic molecules, and to leverage this understanding for designing a transformative hybrid flow battery for future energy storage applications. The project offers several broader impacts, including fundamental knowledge of organic molecules, novel battery technology development, training of the future science and technology workforce at undergraduate and graduate levels, and an outreach program that can engage high school students including students from groups traditionally underrepresented in chemistry and chemical engineering. To unleash the potential of hybrid magnesium-organic flow batteries, new organic molecular structure design is proposed. The design consists of core-shell structured organic molecules with an aromatic core, a redox-active shell, and a polyether chain connecting them. Such core-shell structured molecules have the potential to enable fast electron-transfer reactions to the redox-active moieties located in the shell, and provides multiple design freedoms to tune the solubility, capacity, potential, and stability of organic molecules. Thus, this approach has great potential to achieve transformative energy storage performance compared to the state-of-the-art hybrid flow batteries. A systematic experimental study is proposed, including design and synthesis of core-shell structured organic molecules, chemical and electrochemical characterization of the synthesized molecules, a device-level study of flow battery performance of synthesized molecules, as well as in situ/ex situ studies to understand reaction mechanisms and performance limiting factors. The overall long term aim is to achieve a comprehensive fundamental understanding of the structure-property-performance correlation of core-shell structured organic molecules for magnesium-organic flow batteries. The goal is to eventually provide rational structure/design guidelines of organic materials for high-voltage, high-capacity and stable non-aqueous magnesium-organic flow batteries. Such tunable organic molecules in the longer term have potential application areas that include supporting redox-flow batteries, CO2 capture, electrochemical sensing, organic electronics, and separations science.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.

在化学结构、动力学机制-B计划的支持下，犹他州大学化学工程系的Tao Gao和乔治梅森大学化学与生物化学系的Chao Luo正在开发用于储能技术的新型有机分子。该项目的目标是设计，合成和表征核壳结构的有机分子，获得合成有机分子的结构-性质-性能相关性的基本理解，并利用这种理解设计一个变革性的混合液流电池，用于未来的储能应用。该项目提供了几个更广泛的影响，包括有机分子的基础知识，新型电池技术的开发，在本科和研究生阶段培训未来的科学和技术劳动力，以及一个可以吸引高中生的外展计划，包括来自化学和化学工程传统上代表性不足的群体的学生。为了释放混合镁有机液流电池的潜力，提出了新的有机分子结构设计。 该设计由核壳结构的有机分子组成，具有芳香族核、氧化还原活性壳和连接它们的聚醚链。这种核-壳结构的分子具有使位于壳中的氧化还原活性部分能够进行快速电子转移反应的潜力，并提供多种设计自由度以调节有机分子的溶解度、容量、潜力和稳定性。因此，与最先进的混合液流电池相比，这种方法具有实现变革性能量存储性能的巨大潜力。提出了一个系统的实验研究，包括核壳结构的有机分子的设计和合成，合成的分子的化学和电化学表征，合成的分子的液流电池性能的设备级研究，以及原位/非原位研究，以了解反应机理和性能限制因素。总体长期目标是实现对用于镁有机液流电池的核-壳结构有机分子的结构-性质-性能相关性的全面基本理解。最终为高电压、高容量、稳定的非水有机镁液流电池提供合理的有机材料结构/设计指导。 从长远来看，这种可调有机分子具有潜在的应用领域，包括支持氧化还原液流电池、CO2捕获、电化学传感、有机电子和分离科学。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。