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: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=718958
• 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.

该提案涵盖了三个领域的基础研究：1）组合和高通量材料科学方法，其中制备数百个样本并并行测试； 2）基本的理解和消除锂离子电池中的降解，导致电池非常适合电动汽车应用，3）一个新项目，现在从可充电ZN-Air电池开始。 Discovery Grant（DG）支持基础研究和基础科学，而Dahn的其他资金支持更多的应用研究。JeffDahn的NSERC/工业研究主席（IRC）计划支持应用研究，这些研究不断使用组合和高通量材料在DG工作期间开发的材料。 涉及使用新获得的组合溶液处理机器人的新方法将根据DG资金开发，并用于表征锂离子电池的正极电极材料。 新的电极材料和电解质添加剂对锂离子电池寿命和循环寿命的影响将使用新开发的，独特的方法。 目前，这种电池化学变化的99％会影响锂离子电池的周期和日历寿命的方式尚不清楚，这是DG研究将发挥重要作用的地方。 Zn-Air电池具有任何市售电池技术的最大体积能量密度，但是目前它们不可充电。 即使是由电池壳体组成的很小的Zn空气助听器电池也具有1800 WH/L的测得的能量密度，而最佳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ZN空气电池的小型项目，该电池将继续根据DG资金继续进行。