CAREER: Probing Interfaces in Energy Storage Materials Using Dynamic Impedance Spectroscopy and Multiharmonic Electrochemical Quartz Crystal Microbalance Dissipation

职业：使用动态阻抗谱和多谐波电化学石英晶体微天平耗散探测储能材料中的界面

• 批准号: 2047753
• 负责人: Niya Sa
• 金额: $ 58.9万
• 依托单位: University of Massachusetts Boston
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-06-01 至 2026-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2047753&HistoricalAwards=false
• 关键词: CAREER; Probing; Interfaces; Energy; Storage

With support from the Chemical Measurement and Imaging Program in the Division of Chemistry and partial co-funding from the Chemical Structures, Dynamics, and Mechanisms - B program, and the Solid State Materials Chemistry program in the Division of Materials Research, Dr. Niya Sa and her research team at the University of Massachusetts Boston are developing innovative approaches to advancing our understanding of the chemistry of rechargeable batteries. The work addresses global challenges in the areas of energy storage, utilization, and environmental stewardship. Dr. Sa will work to communicate the underlying science and its importance to the general public through outreach activities that seek to explain the principles of electrochemistry, battery chemistry and green chemistry to K-12 students and members of groups underrepresented in science-technology-engineering-mathematics (STEM). With this award, Dr. Sa’s team will be implementing the hybrid Dynamic Impedance Spectroscopy/Multiharmonic Electrochemical Quartz Crystal Microbalance Dissipation (DEIS EQCM-D) platform to probe complex interfacial systems. Specifically, they seek to improve understanding of the dynamic Solid Electrolyte Interphase (SEI) of energy storage materials - critical for advancing next-generation energy storage devices, yet impeded by the lack of reliable in situ experimental techniques. The major focus of this work is to enable quantification of the microscopic mass exchange that accounts for SEI dissolution, reconstruction, and instability. Coupling DEIS with EQCM-D offers a significant advance over previously reported ex situ electrochemical impedance (EIS) or gravimetric EQCM measurements. Working at the interface between analytical chemistry and material science, the Sa group seeks to advance fundamental understanding and enable new approaches to energy storage materials and electrolytes where performance characteristics are critically determined by the dynamic ion intercalation and mass transport reactions at interfaces. Students engaged in the work will be trained in state-of-the-art electroanalytical techniques, energy storage concepts, instrumentation, and simulations. Dr. Sa is working to provide educational opportunities for underrepresented groups, and to engage with the local community through collaboration with the local Science Museum.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.

在化学系化学测量和成像项目的支持下，以及化学结构、动力学和机制- B项目和材料研究系固态材料化学项目的部分共同资助下，马萨诸塞州波士顿大学的Niya Sa博士和她的研究团队正在开发创新方法，以促进我们对可充电电池化学的理解。这项工作解决了能源储存、利用和环境管理领域的全球挑战。Sa博士将致力于通过外展活动向公众传达基础科学及其重要性，这些活动旨在向K-12学生和科学技术工程数学（STEM）中代表性不足的团体成员解释电化学，电池化学和绿色化学的原理。凭借该奖项，Sa博士的团队将实施混合动态阻抗谱/多谐波电化学石英晶体微天平耗散（DEIS EQCM-D）平台，以探测复杂的界面系统。具体来说，他们试图提高对储能材料的动态固体电解质界面（SEI）的理解-这对于推进下一代储能设备至关重要，但由于缺乏可靠的原位实验技术而受到阻碍。这项工作的主要重点是量化微观质量交换，解释SEI溶解，重建和不稳定性。耦合DEIS与EQCM-D提供了一个显着的进步，以前报道的非原位电化学阻抗（EIS）或重量EQCM测量。在分析化学和材料科学之间的接口工作，Sa集团寻求推进基本理解，并实现储能材料和电解质的新方法，其中性能特性由界面处的动态离子嵌入和质量传输反应决定。从事这项工作的学生将接受最先进的电分析技术，储能概念，仪器仪表和模拟的培训。萨博士致力于为弱势群体提供教育机会，并通过与当地科学博物馆的合作与当地社区互动。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。

项目成果

Electrolyte Role in SEI Evolution at Si in the Pre-lithiation Stage vs the Post-lithiation Stage

锂化前阶段与锂化后阶段电解质在 Si 的 SEI 演变中的作用

• DOI: 10.1149/1945-7111/acb617
• 发表时间: 2023
• 期刊: Journal of The Electrochemical Society
• 影响因子: 3.9
• 作者: Cora, Saida;Key, Baris;Vaughey, John;Sa, Niya
• 通讯作者: Sa, Niya

Life Aging Effect as a Conditioning Process that Regulates the Performance of the Halogen-Free Mg Electrolyte.

• DOI: 10.1021/acs.langmuir.3c02690
• 发表时间: 2023-11
• 期刊: Langmuir : the ACS journal of surfaces and colloids
• 作者: E. Sheha;Shengqi Fan;Mohamed Farrag;Engy El-Dek;Mostafa A Moselhy;Dora Sulatt;Niya Sa

Evolution of the Dynamic Solid Electrolyte Interphase in Mg Electrolytes for Rechargeable Mg-Ion Batteries

• DOI: 10.1021/acsami.2c13037
• 发表时间: 2022-10-07
• 期刊: ACS APPLIED MATERIALS & INTERFACES
• 影响因子: 9.5
• 作者: Fan, Shengqi;Cora, Saida;Sa, Niya
• 通讯作者: Sa, Niya