SBIR Phase II: Carbon-Coated Nano-Structured Electrodes for Next-Generation Lithium-Ion Batteries

这个小型企业创新研究（SBIR）第二阶段项目将展示原型碳涂层纳米颗粒电极的上级功率传输、快速充电和长循环寿命性能，用于各种商业设计的固有安全的中大型锂离子电池。 主要创新是使用最佳尺寸，排列和组装的碳涂层纳米颗粒，当制造成用于先进电源的薄膜电极结构时，这些纳米颗粒保留了裸纳米晶体材料的固有性能特征。第一阶段专注于通过碳涂层改善20 nm钛酸锂（n-LTO，用于阳极服务）的纳米结构聚集体的性能，以获得更好的电连接和离子连接。第二阶段将开发适当的碳涂层纳米材料，用于阴极服务，旨在匹配n-LTO阳极性能;为下一代性能提供匹配的锂离子主阳极-阴极对。市场要求能够在几分钟而不是几小时内对远程设备（包括便携式计算机、手动工具、割草机和医疗设备、电动汽车、摩托车和轻便摩托车）进行可靠且经济的充电，并且更快的放电速率立即转化为每单位重量更高的功率。

This Small Business Innovation Research (SBIR) Phase II project will demonstrate superior power-delivery, rapid-charge, and long cycle-life performance of prototype carbon-coated, nanoparticle-based electrodes for use in inherently safe, moderate-to-large sized lithium ion batteries of various commercial designs. The primary innovation is the use of optimally sized, arranged and assembled carboncoated nanoparticles that preserve the intrinsic performance characteristics of the bare nanocrystalline materials when fabricated into thin-film electrode structures for use in advanced power sources. Phase I focused on improving performance of nanostructured aggregates of 20nm lithium titanate (n-LTO, used in anode service) via carbon coating for better electrical and ionic connectivity. Phase II will develop appropriate carbon-coated nanomaterials for cathode service designed to match the n-LTO anode performance; providing matched Li-ion host anode-cathode pairs for next-generation performance There are demonstrated market for fast-charge, long-life batteries in a broad range of consumer applications. Markets require that it be possible to reliably and economically recharge remote devices, including portable computers; hand tools, lawn mowers and medical devices; electric cars, motorcycles and mopeds in a matter of minutes rather than hours, and faster discharge rates translate immediately to higher power per unit weight.