CAS-Climate: Identifying and Characterizing the Structures and Physical Properties of Sodiated Intermetallics
CAS-气候:识别和表征钠化金属间化合物的结构和物理性质
基本信息
- 批准号:2211067
- 负责人:
- 金额:$ 52万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-07-15 至 2025-06-30
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Non-technical AbstractLithium-ion rechargeable batteries have been integrated into our everyday lives in mobile electronics, and are being incorporated in a significant way in various modes of transportation. There is increasing demand to extend new energy storage technologies toward emerging applications such as batteries for the energy produced by devices like solar cells or windmills. However, there is no one perfect battery for every application! With the support of the Solid State and Materials Chemistry Program in the Division of Materials Research, Dr. Amy Prieto of Colorado State University and her students are focused on developing better materials for sodium ion batteries, because sodium is much more naturally abundant than lithium. Another key aspect of this project is the training that students receive in electrochemistry and energy storage research. This addresses the desperate need in the United States for a workforce trained in this field. Technical AbstractA common approach to Na-ion battery research is to simply screen the top candidates from Li-ion battery technologies for use in Na-ion systems. Often, this strategy is fundamentally flawed as Li and Na exhibit surprisingly different chemistries. The chemistries developed for cathodes and anodes for Na-ion batteries are not nearly as well developed or understood as those of Li, and some of the best anode materials for storing Li do not store Na. As a result, alloying anode materials, including antimony-based (Sb-based) alloys, have been of great interest due to their relatively high gravimetric and volumetric capacities and their ability to operate at potentials similar to Na/Na+, resulting in high overall energy densities. However, the structures produced during Na insertion into Sb do not appear to follow the thermodynamically predicted intermediates based on phase diagrams, and instead often proceed via amorphous intermediates. With the support of the Solid State and Materials Chemistry Program in the Division of Materials Research, Dr. Amy Prieto of Colorado State University and her students study these insertion processes and the NaxSby compounds formed by electrochemically sodiating/desodiating metal antimonides (MSb), which present a very rich compositional and structural landscape that is yet to be fundamentally understood. They develop and test a toolbox of characterization techniques to study these phases and apply these findings to other alloy-based electrodes. Underlying their research efforts is the hypothesis that if one can identify and characterize the intermediate solid-state structures that are accessed as these anodes are sodiated and desodiated, a deep understanding of the thermodynamics and kinetics of this system along with new materials for clean energy applications will emerge.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.
锂离子可充电电池已经在移动的电子产品中融入我们的日常生活,并且正在以重要的方式被纳入各种交通方式中。 人们越来越需要将新的储能技术扩展到新兴应用领域,例如太阳能电池或风车等设备产生的能量的电池。然而,没有一种完美的电池适用于每一种应用!在材料研究部的固态和材料化学项目的支持下,科罗拉多州立大学的Amy Prieto博士和她的学生们专注于开发更好的钠离子电池材料,因为钠比锂更丰富。 该项目的另一个关键方面是学生在电化学和储能研究方面接受的培训。这解决了美国对这一领域训练有素的劳动力的迫切需求。技术摘要钠离子电池研究的一种常见方法是简单地从锂离子电池技术中筛选出用于钠离子系统的最佳候选者。通常情况下,这种策略从根本上是有缺陷的,因为Li和Na表现出惊人的不同化学性质。用于钠离子电池的阴极和阳极的化学物质的开发或理解不如锂的化学物质那么好,并且一些用于储存锂的最佳阳极材料不储存钠。因此,合金化阳极材料,包括锑基(Sb基)合金,由于其相对高的重量容量和体积容量以及其在类似于Na/Na+的电势下操作的能力而受到极大关注,从而导致高的总能量密度。然而,在钠插入到锑的过程中产生的结构似乎并不遵循基于相图的热力学预测的中间体,而是经常通过无定形中间体进行。在材料研究部的固态和材料化学项目的支持下,科罗拉多州立大学的Amy Prieto博士和她的学生研究了这些插入过程以及通过电化学钠化/去钠化金属锑化物(MSb)形成的NaxSby化合物,这些化合物呈现出非常丰富的成分和结构景观,但尚未从根本上了解。他们开发并测试了一套表征技术工具箱,以研究这些相,并将这些发现应用于其他合金电极。他们的研究工作的基础是这样一种假设,即如果人们能够识别和表征当这些阳极被钠化和去钠化时访问的中间固态结构,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。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Amy Prieto其他文献
Amy Prieto的其他文献
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{{ truncateString('Amy Prieto', 18)}}的其他基金
Molecular Level Understanding of Dynamic Speciation to Inform Complex Reaction Pathways and Control the Rational Synthesis of Ternary Semiconductor Nanoparticles
分子水平上对动态形态的理解,以了解复杂的反应途径并控制三元半导体纳米颗粒的合理合成
- 批准号:
2109141 - 财政年份:2021
- 资助金额:
$ 52万 - 项目类别:
Standard Grant
Using Electrodeposition to Understand the Effects of Composition and Element Segregation on the Physical Properties of Anodes for High Energy-Density Rechargeable Batteries
利用电沉积了解成分和元素偏析对高能量密度可充电电池阳极物理性能的影响
- 批准号:
1710672 - 财政年份:2017
- 资助金额:
$ 52万 - 项目类别:
Continuing Grant
SusChEM: Structural and Mechanistic Insights into the Enhanced Hydrogen Sorption Properties of Metal Hydride Nanoparticles Made via Solution Reactions
SusChEM:通过溶液反应制备的金属氢化物纳米颗粒增强氢吸附性能的结构和机理见解
- 批准号:
1508790 - 财政年份:2015
- 资助金额:
$ 52万 - 项目类别:
Standard Grant
Solid State Chemistry of Inorganic Materials IX
无机材料固态化学九
- 批准号:
1405331 - 财政年份:2013
- 资助金额:
$ 52万 - 项目类别:
Standard Grant
CAREER: Energy Storage and Conversion- Coupling the Direct Electrodeposition of Crystalline Intermetallics with Targeted Outreach to Elementary Schools
职业:能量存储和转换 - 将晶体金属间化合物的直接电沉积与有针对性的小学推广相结合
- 批准号:
0956011 - 财政年份:2010
- 资助金额:
$ 52万 - 项目类别:
Continuing Grant
REU Site: Making, Measuring, and Building Devices: Chemistry Applied to Real World Problems
REU 网站:制造、测量和构建设备:化学应用于现实世界问题
- 批准号:
1004924 - 财政年份:2010
- 资助金额:
$ 52万 - 项目类别:
Continuing Grant
NER: Li-ion Batteries: Hierarchical Architectures for Reducing Diffusion Lengths
NER:锂离子电池:减少扩散长度的分层架构
- 批准号:
0709412 - 财政年份:2007
- 资助金额:
$ 52万 - 项目类别:
Standard Grant
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