Optimization of Electrode Dispersions for Advanced Lithium-Ion Batteries

随着社会向可再生能源和经常可变的能源过渡，并推动能源经济的脱碳，能源储存将发挥越来越重要的作用。设计和优化储能设备及其材料将是未来30年最重要的创新之一。下一代锂离子电池将采用锂镍锰钴氧化物材料（NMC）作为正极，将电池的能量密度提高到4.3V。然而，这种材料对水分和二氧化碳极为敏感。该项目将研究使用界面添加剂和研磨技术来控制锂离子阴极涂层中阴极材料的粒度、形貌、封装、流变性和分散稳定性的各个方面，以及干燥电极材料涂层到集流器的微观结构/性能关系和附着力与最终锂离子电池的电化学性能。

As society transitions to renewable and often variable power sources and drives towards decarbonizing the energy economy, energy storage will play an increasingly important role. Designing and optimizing energy storage devices and their materials will be one of the most important innovations to accomplish over the next thirty years.The next generation of Li ion batteries will contain Lithium Nickel Manganese Cobalt oxide materials (NMC) as the cathode to increase the energy density of the batteries to 4.3V. However, this type of material is extremely air sensitive to moisture and carbon dioxide. This project will investigate the use of interfacial additives and milling techniques to control various aspects of particle size, morphology, encapsulation, rheology and dispersion stability of the cathode materials in a simple formulation of Li ion cathode coatings and the microstructure/property relationship and adhesion of the dried electrode material coating to the current collector with the electrochemical performance of the final Li ion battery.