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）二期项目将展示碳涂层纳米颗粒电极原型的卓越电力传输、快速充电和长循环寿命性能，该电极可用于各种商业设计的固有安全、中大型锂离子电池。主要的创新是使用最佳尺寸、排列和组装的碳包覆纳米颗粒，在制造成用于先进电源的薄膜电极结构时，保留了裸纳米晶体材料的固有性能特征。第一阶段的重点是通过碳涂层提高20nm钛酸锂（n-LTO，用于阳极服务）纳米结构聚集体的性能，以获得更好的电和离子连接性。第二阶段将为阴极服务开发合适的碳涂层纳米材料，以匹配n-LTO阳极的性能；为下一代性能提供匹配的锂离子主阳极-阴极对。在广泛的消费应用中，快速充电、长寿命电池的市场已经得到证实。市场要求能够可靠而经济地为远程设备（包括便携式计算机）充电；手动工具、割草机和医疗器械；电动汽车、摩托车和轻便摩托车只需几分钟而不是几小时，更快的放电速度立即转化为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.