CAREER: Understanding Interfaces in Solid State Energy Storage Systems and Cross-Disciplinary Education

职业：了解固态储能系统中的接口和跨学科教育

基本信息

批准号：
1847029
负责人：
Kelsey Hatzell
金额：
$ 51.56万
依托单位：
Vanderbilt University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-06-01 至 2021-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1847029&HistoricalAwards=false
关键词：
CAREER Understanding Interfaces Solid State

项目摘要

Advanced lithium-ion batteries for vehicle transport and renewable electricity grid storage applications could improve domestic energy security but performance gaps in cost and battery lifetime limit use. The main cause of battery failure is undesirable chemical side reactions within the device that are difficult to quantify and to understand. Because of the lack of fundamental understanding, engineers are less able to design materials and devices that can last the expected lifetimes. This CAREER project will conduct fundamental research on advanced solid-state hybrid electrolytes that have the potential for greater energy density while retaining a safe operating environment. These hybrid electrolytes could replace currently used liquid organic electrolytes that have had issues with long cycle life. The active material's (lithium ion) transport within the electrolyte and to the electrode is not fully understood in these hybrids. This project will address fundamental knowledge of the underlying physics and chemical transformations that support understanding of ionic transport in the hybrid electrolytes. This knowledge will also have far-reaching applications of chemical sensors, fuel cells, and other battery chemistries. The educational plan intends to integrate the research findings directly into the Nashville community through outreach programs run through the Vanderbilt Institute for Nanoscience Engineering, Vanderbilt Engineering Ambassadors, and a research internship program with Harpeth Hall School for Girls. All outreach activities seek to expand scientific and engineering opportunities to underrepresented communities in STEM. This project will examine ionic transport pathways in a family of solid ion hybrid conductors. These electrolytes are composed of two different types of ion conductors: (1) polymers and (2) ceramics. Currently, it is unknown how ionic transport occurs between these two materials within the electrolyte. In order to achieve batteries that can be charged quickly and last a long time, it is necessary to control ion transport between these two materials. The research objective of this CAREER project is to understand ionic transport by focusing on the characterization of ion transport at the interfaces within the electrolyte. There are two types of interfaces that can form in a solid electrolyte: intrinsic and extrinsic. Intrinsic interfaces occur in hybrid electrolytes between inorganic and organic constituents, and also occur in ceramic ion conductors at grain boundaries. These are examples of interfaces where an ion moves between ion conductors. Extrinsic interfaces are interfaces that emerge during device integration (electrode|electrolyte) and can affect performance. These interfaces involve transport between an ion conductor and a mixed ion and electron conductor. Establishing the role interfaces have on ionic transport will enable pathways toward achieving the competitive performance and functionality. This project will use a multi-modal approach which couples physics-based modeling with electrochemical, spectroscopy, x-ray, and neutron experiments to describe transport mechanisms in hybrid solid electrolytes.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.

用于车辆运输和可再生电网存储应用的高级锂离子电池可以改善国内能源安全性，但成本和电池寿命限制使用的性能差距。电池故障的主要原因是设备内难以量化和理解的化学侧面反应。由于缺乏基本的理解，工程师无法设计能够持续预期寿命的材料和设备。该职业项目将对先进的固态混合动力电解质进行基础研究，这些研究具有更大的能量密度，同时保留安全的操作环境。这些杂交电解质可以替代当前使用的液体有机电解质，这些电解质具有长期循环寿命的问题。在这些杂种中尚未完全了解电解质和电极内的活性材料（锂离子）的转运。该项目将介绍基本的物理和化学转化的基本知识，这些知识支持对混合电解质中离子运输的理解。这些知识还将在化学传感器，燃料电池和其他电池化学方面具有深远的应用。该教育计划旨在通过通过范德比尔特纳米科学工程研究所，范德比尔特工程大使和Harpeth Hall Hall女童学校进行的研究结果将研究结果直接整合到纳什维尔社区。所有外展活动都旨在将科学和工程的机会扩大到STEM中代表性不足的社区。该项目将检查一个固体离子混合导体家族中的离子传输途径。这些电解质由两种不同类型的离子导体组成：（1）聚合物和（2）陶瓷。目前，尚不清楚电解质内这两种材料之间如何发生离子运输。为了实现可以快速充电并持续很长时间的电池，有必要控制这两种材料之间的离子传输。该职业项目的研究目标是通过专注于电解质内接口的离子传输的特征来了解离子运输。有两种类型的界面可以在固体电解质中形成：内在和外在。固有界面发生在无机成分和有机成分之间的杂化电解质中，并且在晶界处的陶瓷离子导体也出现。这些是离子在离子导体之间移动的接口的例子。外部接口是在设备集成期间出现的界面（电极|电解质），并且会影响性能。这些接口涉及离子导体与混合离子和电子导体之间的运输。建立界面在离子运输中的作用将使能够实现竞争性能和功能。该项目将使用一种多模式方法，该方法将基于物理学的建模与电化学，光谱，X射线和中子实验结合起来，描述混合固体电解质中的运输机制。该奖项反映了NSF的法定任务，并通过该基金会的知识绩效和广泛的影响来评估NSF的法定任务，并被认为是值得通过评估的支持。

项目成果

期刊论文数量（18）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Nanoscale Mapping of Extrinsic Interfaces in Hybrid Solid Electrolytes

DOI：
10.1016/j.joule.2019.11.015
发表时间：
2020-01-15
期刊：
JOULE
影响因子：
39.8
作者：
Dixit, Marm B.;Zaman, Wahid;Hatzell, Kelsey B.
通讯作者：
Hatzell, Kelsey B.

Not All Lithium Filaments Are the Same in Solid-State Batteries

固态电池中并非所有锂丝都相同

DOI：
10.1016/j.joule.2020.03.021
发表时间：
2020
期刊：
Joule
影响因子：
39.8
作者：
Hatzell, Kelsey B.
通讯作者：
Hatzell, Kelsey B.

Challenges in Lithium Metal Anodes for Solid-State Batteries

DOI：
10.1021/acsenergylett.9b02668
发表时间：
2020-03-13
期刊：
ACS ENERGY LETTERS
影响因子：
22
作者：
Hatzell, Kelsey B.;Chen, Xi Chelsea;Zeier, Wolfgang G.
通讯作者：
Zeier, Wolfgang G.

In situ investigation of water on MXene interfaces

DOI：
10.1073/pnas.2108325118
发表时间：
2021-11
期刊：
Proceedings of the National Academy of Sciences
影响因子：
0
作者：
W. Zaman;Ray A. Matsumoto;M. Thompson;Yu-Hsuan Liu;Y. Bootwala;Marm B. Dixit;S. Nemšák;E. Crumlin;M. Hatzell;P. Cummings;K. Hatzell
通讯作者：
W. Zaman;Ray A. Matsumoto;M. Thompson;Yu-Hsuan Liu;Y. Bootwala;Marm B. Dixit;S. Nemšák;E. Crumlin;M. Hatzell;P. Cummings;K. Hatzell

Processing and manufacturing of next generation lithium-based all solid-state batteries