Nanoscale, hybrid and multifunctional coatings on advanced cathode materials for high-performance li ion batteries used in electric vehicles

这项拟议研究的目标是应用纳米技术来解决电动汽车用高性能锂离子电池开发中的关键挑战。通过新型纳米涂层材料的创造性和创新性应用，西部公司的孙博士/沈博士和通用汽车加拿大公司将合作推进高稳定性锂离子电池技术。这一创新的研究计划将充分利用孙博士在纳米技术方面的专业知识，以及Sham博士用于能量存储的同步加速器。预计开发的技术将显著降低成本并提高锂离子电池的稳定性--然后可以转移到通用汽车的电动汽车上。本研究的目标是应用先进的原子层沉积(ALD)涂层技术在LiNi1/3Co1/3Mn1/3O2正极材料上沉积各种超薄且均匀的涂层，以解决锰的溶解问题，同时显著提高锂离子电池的耐久性能。一个重要的方面是应用先进的原位同步加速器技术来了解阴极/阳极与电解液之间的反应，以便更好地设计电极材料。这些目标代表着满足未来汽车对锂离子电池需求的新方法。拟议项目的成功完成将通过向加拿大能源和纳米技术行业转移新的知识、专业知识和技术，加快锂离子电池的商业化进程，并直接减少环境污染，为加拿大工业和纳米技术界带来好处。

The objective of this proposed research will apply nanotechnology to address the key challenges in development of high performance lithium ion batteries used for electric vehicles. Through creative and innovative applications of novel nanocoating materials, Western's Dr. Sun/Dr. Sham and GM Canada will collaboratively advance high stable Li ion battery technologies. This innovative research program will take full advantage of Dr. Sun's expertise in nanotechnology and Dr. Sham's synchrotron for energy storage. It is expected the techniques developed will significantly lower costs and improve stability of Li ion batteries - which could then be transferred to GM's electric vehicles. The goals of this research are apply advanced atomic layer deposition (ALD) coating technique to deposit various ultra-thin and uniform coatings on LiNi1/3Co1/3Mn1/3O2 cathode materials to address the challenge of Mn dissolution, while significantly increasing durability in Li ion batteries. An important aspect is to apply advanced in-situ synchrotron technique to understand reactions between cathodes/anodes and electrolytes for better design electrode materials. These goals represent novel approaches to meet future automotive requirements for Li ion batteries. Successful completion of the proposed project will provide benefits to Canadian industry and the nanotechnology community by transferring new knowledge, expertise and technologies to Canadian energy and nanotechnology industries, by accelerating the Li ion battery commercialization process and by directly reducing environmental pollution.