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

STTR 第一阶段：用于先进锂/硫电池的新型纳米复合材料

• 批准号: 0740730
• 负责人: Tuqiang Chen
• 金额: $ 15万
• 依托单位: TH Chem, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0740730&HistoricalAwards=false
• 关键词: STTR; Phase; New; Nanocomposite; Materials

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.

这项STTRI期研究计划将开发新型纳米复合正极材料，这将显著提高锂硫(Li/S)电池的循环寿命。通过在导电基质中形成稳定的硫纳米相，NCMS将获得优异的性能。在这个项目中，该公司将通过低成本的方法制备新型的NCM电极。将对NCMS进行结构表征，并对纳米复合电极进行电化学评估。这项拟议的技术将导致更轻、更小、更强大、更安全、更具成本效益的可充电锂电池，这将对商业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，是许多民用和军用应用的一种很有前途的电源。然而，由于目前的硫电极电化学稳定性差，电导率和离子电导率低，循环寿命差，容量衰减快，严重制约了当前电池的性能。具有良好性能、安全性和可制造性的可充电电池的商业化潜力极高。市场包括手机、摄像机、笔记本电脑、工具和其他消费产品。