NSERC/3M Canada Industrial Research Chair in Materials for Advanced Batteries

NSERC/3M 加拿大先进电池材料工业研究主席

• 批准号: 192857-2011
• 负责人: Dahn, Jeff
• 金额: $ 17.64万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Industrial Research Chairs
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=523093
• 关键词: NSERC; 3M; Canada; Industrial; Research

Lithium-ion batteries have been in the marketplace for 20 years. They store the greatest energy per volume or per mass of any rechargeable battery technology compatible with portable electronics. They have excellent performance and storage characteristics, long charge-discharge cycle life, no memory effect and are available at low cost. As such, they have become the power source of choice for portable electronic devices like laptop computers, cell phones, digital cameras, power tools etc. Lithium-ion batteries are now targetted for electric vehicle and grid energy storage applications. These applications demand batteries that last from 10 (auto) to 30 years (grid). Testing new chemistries in cells under realistic conditions over these time frames is more than the length of a graduate student career (not to mention a professor!) so academics have shied away from such studies. We have recently addressed this problem by demonstrating that precision measurements of the coulombic efficiency of Li-ion batteries, which takes a few weeks, can be used to project the cycle life and lifetime of Li-ion cells. One part of this proposal focuses on precision coulometry measurements, understanding cell degradation mechanisms and inventing solutions for those degradation paths. Additionally, new electrode materials, electrolytes and additives are required to further improve the energy density, lifetime and safety of lithium-ion batteries so that they will be suitable for electrified vehicles and for grid-energy storage. This search can be accelerated using the methods of combinatorial and high throughput materials science where hundreds of samples are synthesized and then tested in a single experiment. The Dahn group is the world leader in combinatorial studies of lithium-ion battery materials. This proposal is supported by 3M and 3M Canada, who are manufacturers of lithium-ion battery materials and E-One/Moli Energy Canada Ltd., a potential user of the new materials and technology developed throughout the course of this work. Other Language Version of Summary

锂离子电池已经进入市场20年了。在与便携式电子设备兼容的任何可充电电池技术中，它们每体积或每质量存储的能量最大。它们具有优异的性能和存储特性，充放电循环寿命长，无记忆效应，成本低。因此，它们已成为便携式电子设备的电源选择，如笔记本电脑，手机，数码相机，电动工具等。锂离子电池现在的目标是电动汽车和电网储能应用。这些应用需要持续10年（汽车）到30年（电网）的电池。在这些时间框架内，在现实条件下在细胞中测试新的化学物质比研究生的职业生涯还要长（更不用说教授了！），所以学者们回避了这样的研究。我们最近解决了这个问题，通过展示锂离子电池库仑效率的精确测量，这需要几个星期的时间，可以用来预测锂离子电池的循环寿命和寿命。该提案的一部分侧重于精确库仑测量，了解细胞降解机制并为这些降解途径发明解决方案。此外，需要新的电极材料、电解质和添加剂来进一步提高锂离子电池的能量密度、寿命和安全性，使其适用于电动汽车和电网储能。这种搜索可以使用组合和高通量材料科学的方法来加速，其中数百个样品被合成，然后在单个实验中进行测试。达恩集团在锂离子电池材料组合研究方面处于世界领先地位。该提案得到了锂离子电池材料制造商3M公司和3M加拿大公司以及E-One/Moli能源加拿大有限公司的支持，E-One/Moli能源加拿大有限公司是整个工作过程中开发的新材料和技术的潜在用户。其他语言版本的摘要