High power battery electrodes

高功率电池电极

• 批准号: 468656-2014
• 负责人: Rochefort, Dominic
• 金额: $ 20万
• 依托单位: Université de Montréal
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=619292
• 关键词: power; battery; electrodes

The development of electrical energy storage systems with improved performance will play a critical role inmaintaining the current quality of life in developed countries as well as in the sustainable growth of developingcountries. In the transportation sector, for instance, new technologies must be developed because energyconsumption and production that rely on the combustion of fossil fuels already have a severe impact on worldeconomics 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 theenvironmental impact of the transportation sector. Lithium-ion batteries are highly energetic storage devicesbut 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 applicationin EVs (>= 30000 cycles). The innovative and key aspect of the project lies in the use of elastomeric bindersthat were specifically designed by the industrial partner for the purpose of high power Lithium-ion batteries andthat will enable electrode fabrication by solvent-free processes. We will begin by optimizing the formulationwith regards to the mechanical stability and charging efficiency. The density of active material, porosity andthickness of the electrodes will be measured and their effect evaluated. Then, a thorough study of the agingprocesses of electrodes and cells obtained by solvent and solvent-free approaches will be undertaken usingelectronic (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 10sof Wh and study the stability and heat generation in such stacked system. The successful development of highpower batteries will stimulate the economy of clean "cars" related industries, helping to assure the quality ofour environment and contribute to the commitment of Canada to a cleaner environment.

具有提高性能的电能量存储系统的开发将发挥关键作用，使发达国家以及发展中心的可持续增长的当前生活质量。例如，在运输部门中，必须开发新技术，因为依靠化石燃料的燃烧的能量消费和生产已经对世界经济学和生态学产生了严重影响。电动汽车（EV）和插电式混合动力汽车（PHEV）的开发（PHEVS）要求进行更多性能的电力储能系统，将有助于减少运输部门的环境影响。锂离子电池是高能的存储设备，但在功率方面仍然非常有限，这阻碍了它们在运输车辆中的整合。在此协作研究项目中，我们将研究和开发使用新颖的，高性能的电池电极来满足高功率（1 kW/kg）的高性能（1 kW/kg）和对Application appliction applicption evs（> 30000 cycles）。该项目的创新和关键方面在于使用弹性粘合剂的使用是由工业合作伙伴专门设计的，目的是用于高功率锂离子电池，这将通过无溶剂的工艺来实现电极制造。我们将首先优化对机械稳定性和充电效率的配制。将测量活性物质，孔隙率和厚度的密度，并评估其效果。然后，将使用电子（SEM，TEM）和原位扫描探针显微镜和电化学技术进行详细研究通过溶剂和无溶剂方法获得的电极和细胞的老化过程。在该项目的最后一年，我们将制造出挤压电极的堆叠系统，该系统将呈现10sof WH并研究此类堆叠系统中的稳定性和热量产生。高力电池的成功开发将刺激与“汽车”相关行业的经济，有助于确保环境质量，并为加拿大对更清洁的环境的承诺做出贡献。