Synthesis, Structures, and Properties of New Mixed Oxy-Sulfide-Nitride Glassy Solid Electrolytes

新型混合氧-硫化物-氮化物玻璃态固体电解质的合成、结构和性能

• 批准号: 1936913
• 负责人: Steve Martin
• 金额: $ 64万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-01-01 至 2024-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1936913&HistoricalAwards=false
• 关键词: Synthesis; Structures; Properties; New; Mixed

TECHNICAL DESCRIPTION: This project is conducting research to develop new glasses than can be used in the development of new batteries that are safer and more energy dense. While lithium batteries are powerful, they present a dangerous fire hazard that have resulted in many injuries. In this project, new glasses are being prepared and studied that will help create a new type of all solid-state battery that cannot catch fire, and can hold10 times more energy than lithium batteries. Graduate and undergraduate students working on the project are learning how to conduct research, work in international multi-disciplinary research teams, and present and discuss their research findings. Students supported by this project will conduct informal science education to K-Gray audiences numbering more than 2500 each year by using the Gaffers Guild Glass Blowing Studio.TECHNICAL DETAILS: At the very core of every lithium battery is a highly flammable organic liquid electrolyte. When a lithium battery is overcharged, overheated, or draws too much current too rapidly, the organic liquid electrolyte can catch fire and cause serious injury. In this new project, fundamental research is being conducted to study new kinds of mixed oxy-sulfide-nitride glassy solid electrolytes. The project will examine the underlying structural chemistry of mixing oxygen, sulfur, and nitrogen to explore three hypotheses: (1) That adding oxygen will improve the mechanical strength and chemical durability of the glass by forming bridging oxygens between the glass formers. (2) That adding sulfur will increase the lithium and sodium ion conductivity by forming low basicity anion sites of low binding energy. (3) That adding nitrogen will improve the electrochemical stability of the glasses by forming strongly and covalently bonded two-fold and three-fold bonded nitrogen. This research project trains graduate and undergraduate students in state-of-the-art glass and materials synthesis, materials characterization, and solid-state electrochemistry of solid electrolytes and as such broadens the cadre of new knowledge workers in the critical field of energy storage.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.

技术描述：该项目正在进行研究，开发可用于开发更安全、能量密度更高的新型电池的新型玻璃。虽然锂电池功能强大，但它们存在危险的火灾隐患，导致许多人受伤。在这个项目中，正在准备和研究新型玻璃，这将有助于创造一种新型全固态电池，这种电池不会着火，并且可以容纳比锂电池多10倍的能量。从事该项目的研究生和本科生正在学习如何进行研究、在国际多学科研究团队中工作以及展示和讨论他们的研究成果。受该项目支持的学生每年将通过 Gaffers Guild 玻璃吹制工作室向超过 2500 名 K-Gray 观众进行非正式的科学教育。 技术细节：每个锂电池的核心都是高度易燃的有机液体电解质。当锂电池过度充电、过热或过快消耗过多电流时，有机液体电解质可能会着火并造成严重伤害。在这个新项目中，正在进行基础研究，以研究新型混合氧硫化物氮化物玻璃态固体电解质。该项目将研究混合氧、硫和氮的基本结构化学，以探索三个假设：（1）添加氧将通过在玻璃形成体之间形成桥接氧来提高玻璃的机械强度和化学耐久性。 (2)添加硫将通过形成低结合能的低碱度阴离子位点来增加锂和钠离子的电导率。 (3)添加氮将通过形成牢固的共价键合的二重和三重氮来提高玻璃的电化学稳定性。该研究项目对研究生和本科生进行最先进的玻璃和材料合成、材料表征和固体电解质的固态电化学方面的培训，从而扩大了能源存储关键领域新知识工作者的队伍。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力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

Interpretation of the Na + Ionic Conductivity in Na 4 P 2 S 7–x O x Mixed Oxy-Sulfide Glasses: Effects of Oxygen Doping

Na 4 P 2 S 7âx O x 混合硫氧化物玻璃中 Na 离子电导率的解释：氧掺杂的影响

• DOI: 10.1021/acs.chemmater.2c01934
• 发表时间: 2022
• 期刊: Chemistry of Materials
• 影响因子: 8.6
• 作者: Kmiec, Steven;Olson, Madison;Kenney, Matthew;Martin, Steve W.
• 通讯作者: Martin, Steve W.

A new method for determining the d.c. conductivity of powdered materials

确定直流电的新方法

• DOI: 10.1016/j.nocx.2021.100066
• 发表时间: 2021
• 期刊: Journal of noncrystalline solids
• 作者: C. Austen Angell, Ranko Richert

The novel oxy-sulfide glassy ionic conductors Na4P2S7-xOx 0 ≤ x ≤ 7: Understanding the features of static and dynamic cations

新型硫氧化物玻璃态离子导体Na4P2S7-xOx 0××××7：了解静态和动态阳离子的特征

• DOI: 10.1016/j.ssi.2023.116363
• 发表时间: 2023
• 期刊: Solid State Ionics
• 影响因子: 3.2
• 作者: Shastri, Ananda;Rons, Nathan;Ding, Qing-Ping;Kmiec, Steven J.;Olson, Madison;Furukawa, Yuji;Martin, Steve W.
• 通讯作者: Martin, Steve W.

Electrochemical Behavior of Drawn Thin-Film Vitreous Lithium Metaphosphate

• DOI: 10.1021/acsaem.1c01809
• 发表时间: 2021-10
• 期刊: ACS Applied Energy Materials
• 影响因子: 6.4
• 作者: Jacob Wheaton;Steven J. Kmiec;Devon Schuler;C. Sorensen;Steve W. Martin

Critical Role of Pressure for Chemo-Mechanical-Induced Stability of Sodium Metal Battery Anodes

• DOI: 10.1021/acsenergylett.3c00734
• 发表时间: 2023-05
• 期刊: ACS Energy Letters
• 影响因子: 22
• 作者: Weimin Jiao;Murtaza Zohair;Janna Eaves-Rathert;J. Ramamurthy;Andrew Harkaway;Rebecca Mort;Jacob Wheaton;Shan Jiang;Steve W. Martin;C. Pint