Combining high energy density electrodes, such as silicon and NMC, has the potential to meet the growing demand of high energy electric vehicles. Herein, we report a full-cell design using a macroporous silicon anode and alumina-coated NMC cathode that provides stable cyclability by means of capacity-limited charging. The proposed Si-NMC full-cell design with alumina passivation on cathode has exhibited a stable capacity of 1000 mAh/g, with 1.2 times higher energy density than the Si-NMC full-cell without cathode passivation. The role of alumina coating on the altered half-cell electrode charging mechanisms and electrochemical full-cell reactions with Si anode was investigated systematically using various structural and chemical analyses. The alumina passivated Si-NMC full-cell designed in this study elucidated an interesting electrochemical behavior of Li trapping, which shed light on a significant pathway in the efficient utilization of Si-NMC battery for high energy applications.

中文翻译：

---

ALD改性的LiNi _0.33 Mn _0.33 Co _0.33 O ₂与大孔硅配对的锂离子电池：锂陷阱，电阻上升和循环寿命性能的研究

结合使用高能量密度电极（例如硅和NMC）有潜力满足高能量电动汽车不断增长的需求。在本文中，我们报告了使用大孔硅阳极和氧化铝涂层NMC阴极的全电池设计，该阴极通过容量受限的充电提供稳定的循环性。提出的在阴极上进行氧化铝钝化的Si-NMC全电池设计具有1000 mAh / g的稳定容量，其能量密度是没有阴极钝化的Si-NMC全电池的1.2倍。通过各种结构和化学分析，系统地研究了氧化铝涂层在改变的半电池电极充电机理和与硅阳极电化学全电池反应中的作用。