SBIR Phase I: Novel Polylithium Salts for Small and Full Size Rechargeable Batteries

这个小企业创新研究第一阶段项目是开发和使用新型的具有成本效益的锂盐，用于大规模生产电动汽车/混合动力汽车应用的全尺寸锂离子电池。含有氟化低晶格能锂盐的小型锂离子电池用于电脑、手机、相机和医疗设备。为了大规模生产用于电动汽车和混合动力汽车（EV/HEV）的全尺寸电池，从这些盐中提取的电解质过于昂贵，并且对环境有潜在危害。在锂离子电池中，液态电解质是仅次于正极材料的第二昂贵的部件。因此，与目前的锂盐相比，价格低廉的锂盐需求量很大。这种盐的可用性将是锂离子电池技术的重大进步。该项目将开发具有优异电化学性能的低成本锂盐。该项目的更广泛影响/商业潜力是向市场引入新的锂盐，用于大规模生产电动汽车和消费产品的全尺寸锂离子电池。与现有的电池相比，这些更环保、成本更低的材料将提供更好的电池。由于世界范围内对环境问题的关注和自然化石燃料的枯竭，对可持续电动汽车（ev）和燃料电池电动汽车（fcev）的需求越来越大。这些电动动力系统需要能够频繁充电和放电的二次电池。锂离子（Li-ion）电池是最有前途的二次电池之一，因为它具有高能量和功率密度，并且有可能持续汽车的使用寿命。锂离子电池目前也在大规模商业生产中用于消费电子产品，如笔记本电脑和手机。然而，小型电池的高成本阻碍了它们在经济上要求很高的大众市场车辆上的应用。为了提高他们的竞争地位，并着眼于潜在的汽车市场的长期扩张，必须投入大量的研究和开发来降低锂离子电池的成本。本项目开发的技术将推进这一目标。

This Small Business Innovation Research Phase I project is to develop and employ novel cost-effective lithium salts for mass production of full size lithium-ion batteries for EV/HEV applications. Small lithium-ion batteries containing fluorinated low lattice energy lithium salts are used in computers, cell phones, cameras, and medical devices. For mass production of full size batteries to be used in electric vehicles and hybrid electric vehicles (EV/HEV), the electrolytes derived from these salts are far too expensive and are potentially hazardous to the environment. In a Li-ion battery, the liquid electrolyte is the second most expensive component after cathode materials. Therefore, there is a great demand for lithium salts that are inexpensive compared to that of the current lithium salts. The availability of such salts will be a major advance in Li-ion battery technology. This project will develop low-cost lithium salts that have excellent electrochemical properties.The broader impact/commercial potential of this project is to introduce to the marketplace new lithium salts for large-scale production of full-size lithium-ion batteries for electric vehicles and consumer products. These environmentally safer and less costly materials will provide improved batteries compared to those currently available. Due to worldwide concerns about environmental issues and the depletion of natural fossil fuels, there have been increasing demands for sustainable EVs (electric vehicles) and FCEVs (fuel cell electric vehicles). These electric powertrains need secondary batteries that can be charged and discharged frequently. One of the most promising types of secondary batteries is the lithium-ion(Li-ion) battery, because of its high energy and power densities and because it has the potential to last the lifetime of the car. Li-ion batteries are also currently in large-scale commercial production for use in consumer electronic products, such as laptop computers and cellphones. However, the high cost of small cells precludes their use in economically-demanding mass-market vehicles. To improve their competitive position and with a view to potential long-term expansion of the vehicle market, considerable research and development must be devoted to lowering the costs of Li-ion batteries. The technology developed in this project will advance this goal.