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Development of a Framework for High-Throughput Calculations and its Application to Energy Storage Challenges.

机译:高通量计算框架的开发及其在储能挑战中的应用。

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摘要

From a historical perspective, the progress of humanity has been measured by the materials that mankind has been able to use. Looking forward, future technological developments will continue to hinge on the development of materials with precisely tailored properties and performance. In pursuit of this goal, this thesis presents a framework for the high-throughput handling of first principles materials modeling. This framework takes the form of the Open Quantum Materials Database (OQMD - www.oqmd.org), a repository of crystal structures, computed materials properties, and a host of tools for data storage, retrieval, and analysis. At present, the OQMD contains over 300,000 materials, and over 1.3 million completed density functional theory calculations. We set forth to demonstrate the usefulness of the OQMD for materials discovery by using it to search for materials for three applications: 1) conversion reaction anode materials for Li-ion batteries, 2) electrode materials for a novel hybrid Li-ion/Li-O2 battery chemistry, and 3) precipitation strengtheners for a suite of structural metals. In each of these materials discovery projects, we first determine the scope of relevant materials to consider, then develop a set of screens based on DFT calculable bulk materials properties, implement the specified filters, and finally consider the apparent advantages and disadvantages of the predicted materials.
机译:从历史的角度来看,人类的进步已经由人类能够使用的材料来衡量。展望未来,未来的技术发展将继续取决于具有精确定制的性能和性能的材料的开发。为了实现这一目标,本文提出了一个高通量处理第一性原理材料模型的框架。该框架采用开放量子材料数据库(OQMD-www.oqmd.org)的形式,晶体结构存储库,计算材料属性以及用于数据存储,检索和分析的大量工具。目前,OQMD包含300,000多种材料,并完成了130万种以上的密度泛函理论计算。我们着手通过使用OQMD搜索三种应用的材料来证明OQMD对材料发现的有用性:1)锂离子电池的转换反应阳极材料,2)新型锂离子/锂-杂化电极材料氧气电池化学,以及3)一套结构金属的沉淀增强剂。在每个这些物料发现项目中,我们首先确定要考虑的相关物料的范围,然后根据DFT可计算的散装物料特性开发一组筛选,实施指定的过滤器,最后考虑所预测物料的明显优缺点。

著录项

  • 作者

    Kirklin, Scott.;

  • 作者单位

    Northwestern University.;

  • 授予单位 Northwestern University.;
  • 学科 Engineering Materials Science.
  • 学位 Ph.D.
  • 年度 2014
  • 页码 179 p.
  • 总页数 179
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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