STTR Phase I: New Nanocomposite Materials for Advanced Li/S Batteries

STTR第一阶段研究计划将开发新型纳米复合阴极材料（NCM），以显著提高锂硫（Li/S）电池的循环寿命。通过在导电基体中形成稳定的硫纳米相，将实现所提出的NCM的上级性能。在该项目中，该公司将通过低成本方法制备新型NCM电极。将对NCM进行结构表征，并对纳米复合材料电极进行电化学评价。该技术将使锂电池更轻、更小、更强大、更安全、更经济，并将对民用和军用设备的性能产生重大影响。锂（Li）/硫（S）电池具有极高的能量密度、低成本和低环境影响，是民用和军用领域的一种有前途的电源。然而，由于现有硫电极的差的电化学稳定性和低的电导率和离子电导率，现有电池的性能受到其差的循环寿命和快速容量衰减的严重阻碍。具有良好性能、安全性和可制造性的可再充电电池的商业化潜力非常高。市场包括手机、摄像机、笔记本电脑、工具和其他消费品。

This STTR Phase I research proposal will develop novel Nanocomposite Cathode Materials (NCM) that will significantly improve the performance of Lithium-Sulfur (Li/S) batteries in terms of cycle life. The superior properties of the proposed NCMs will be achieved via formation of stabilized sulfur nano phases in a conductive matrix. During this project the company will prepare the novel NCM electrodes via a low-cost approach. The NCMs will be structurally characterized and the nanocomposite electrodes will be electrochemically evaluated. The proposed technology will result in lighter, smaller, more powerful, safer, and cost-effective rechargeable lithium-based batteries that will have a great impact on the performance of commercial and military devices and equipment.The Lithium (Li) / Sulfur (S) battery is a promising power source for many civilian and military applications due to the extremely high energy density, low-cost, and low environmental impact. However, the performance of the current batteries is hampered heavily by their poor cycle life and fast capacity fade due to the poor electrochemical stability and low electrical and ionic conductivity of the current sulfur electrodes. The potential for commercialization of a rechargeable battery with good performance, safety, and manufacturability is extremely high. The market includes cell phones, video cameras, laptop computers, tools, and other consumer products.