Physics and Chemistry of Materials for Energy Storage

储能材料物理与化学

• 批准号: 195527-2012
• 负责人: Dahn, Jeff
• 金额: $ 9.05万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=696115
• 关键词: Physics; Chemistry; Materials; Energy; Storage

This proposal covers basic studies in three areas: 1) Combinatorial and high-throughput materials science methods where hundreds of samples are prepared and tested in parallel; 2) Fundamental understanding and elimination of degradation in Li-ion batteries leading to batteries well-suited to electric vehicle applications and 3) a new project now beginning on rechargeable Zn-air batteries. The Discovery Grant (DG) supports fundamental studies and basic science while Dahn's other funding supports more applied studies. Jeff Dahn's NSERC/Industrial Research Chair (IRC) program supports applied studies that continually use the combinatorial and high-throughput materials science methods developed during the DG work. New methods involving the use of a newly acquired combinatorial solutions handling robot will be developed under DG funding and used to characterize positive electrode materials for Li-ion batteries. The impact of new electrode materials and electrolyte additives on lithium-ion battery lifetime and cycle life will be studied using newly developed, unique in the world, methods. Presently, the way that 99% of such battery chemistry changes affect cycle and calendar life of Li-ion batteries is not well understood and this is where the DG research will play a major role. Zn-air batteries have the largest volumetric energy density of any commercially available battery technology, however, they are not presently rechargeable. Even a tiny Zn-air hearing aid battery, which is largely made up of the battery casing, has a measured energy density of 1800 Wh/L, compared to 700 Wh/L for the best Li-ion cells. We have started a small project in rechargeable Zn-air batteries which will continue under DG funding.

该提案涵盖三个领域的基础研究：1）组合和高通量材料科学方法，其中并行制备和测试数百个样品； 2) 对锂离子电池的退化有基本的了解并消除其退化，从而使电池非常适合电动汽车应用；3) 目前正在启动一个关于可充电锌空气电池的新项目。 发现补助金 (DG) 支持基础研究和基础科学，而达恩的其他资金则支持更多的应用研究。 Jeff Dahn 的 NSERC/工业研究主席 (IRC) 计划支持不断使用在 DG 工作期间开发的组合和高通量材料科学方法的应用研究。 涉及使用新购买的组合解决方案处理机器人的新方法将在 DG 的资助下开发，并用于表征锂离子电池的正极材料。 将采用新开发的、世界上独一无二的方法研究新型电极材料和电解液添加剂对锂离子电池寿命和循环寿命的影响。 目前，99% 的此类电池化学变化影响锂离子电池循环寿命和日历寿命的方式尚不清楚，而这正是 DG 研究将发挥重要作用的领域。 锌空气电池在所有商用电池技术中具有最大的体积能量密度，但目前不可充电。 即使是主要由电池外壳组成的微型锌空气助听器电池，测得的能量密度也为 1800 Wh/L，而最好的锂离子电池的能量密度为 700 Wh/L。 我们已经启动了一个可充电锌空气电池的小型项目，该项目将在 DG 的资助下继续进行。