High power battery electrodes

开发性能更好的储能系统将在以下方面发挥关键作用 保持发达国家目前的生活质量以及发展中国家的可持续增长 国家。例如，在运输部门，必须开发新技术，因为能源 依赖化石燃料燃烧的消费和生产已经对世界产生了严重影响 经济学和生态学。电动汽车和插电式混合动力汽车的发展 (PHEV)，它要求更高性能的电能储存系统，将有助于减少 运输部门对环境的影响。锂离子电池是一种高能存储设备 但在动力方面仍然非常有限，这阻碍了它们在运输车辆中的整合。 在这个合作研究项目中，我们将研究和开发使用新型， 高性能粘结剂，可满足高功率(1 kW/kg)和长期循环使用要求 在电动汽车中(&gt；=30000周期)。该项目的创新和关键方面在于使用弹性粘结剂 由工业合作伙伴专门为高功率锂离子电池和 这将使电极的制造能够通过无溶剂工艺进行。我们将从优化配方开始 在机械稳定性和充电效率方面。活性物质的密度、孔隙率和 将测量电极的厚度并评估其效果。然后，深入研究了老龄化问题 通过溶剂和无溶剂方法获得的电极和电池的工艺将使用 电子(扫描电子显微镜、电子显微镜)和原位扫描探针显微镜和电化学技术。我们会的， 在这个项目的最后一年，用挤压的电极制造一个堆叠的系统，它将呈现10s 并研究了这种堆积体系的稳定性和产热特性。HIGH的成功开发 动力电池将刺激清洁汽车相关行业的经济，有助于保证汽车的质量 这将有助于我们保护我们的环境，并为加拿大致力于更清洁的环境作出贡献。

The development of electrical energy storage systems with improved performance will play a critical role in maintaining the current quality of life in developed countries as well as in the sustainable growth of developing countries. In the transportation sector, for instance, new technologies must be developed because energy consumption and production that rely on the combustion of fossil fuels already have a severe impact on world economics and ecology. The development of electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs), which calls for more performing electric energy storage systems, would help to reduce the environmental impact of the transportation sector. Lithium-ion batteries are highly energetic storage devices but remain however very limited in terms of power, which hinders their integration in transportation vehicles. In this collaborative research project, we will study and develop lithium-ion battery electrodes that use novel, high performance binders to meet high power (1 kW/kg) and long-term cyclability requirements for application in EVs (>= 30000 cycles). The innovative and key aspect of the project lies in the use of elastomeric binders that were specifically designed by the industrial partner for the purpose of high power Lithium-ion batteries and that will enable electrode fabrication by solvent-free processes. We will begin by optimizing the formulation with regards to the mechanical stability and charging efficiency. The density of active material, porosity and thickness of the electrodes will be measured and their effect evaluated. Then, a thorough study of the aging processes of electrodes and cells obtained by solvent and solvent-free approaches will be undertaken using electronic (SEM, TEM) and in-situ scanning probe microscopies and electrochemical techniques. We will, during the last year of this project, fabricate a stacked system from extruded electrodes which will present 10s of Wh and study the stability and heat generation in such stacked system. The successful development of high power batteries will stimulate the economy of clean "cars" related industries, helping to assure the quality of our environment and contribute to the commitment of Canada to a cleaner environment.