Prelithiation can boost the performance of lithium-ion batteries (LIBs). A cost-effective prelithiation strategy with high quality and high industrial compatibility is urgently required. Herein we developed a roll-to-roll electrodeposition and transfer-printing system for continuous prelithiation of LIB anodes. By roll-to-roll calendering, pre-manufactured anodes could be fully transfer-printed onto electrodeposited lithium metal. The interface separation and adhesion during transfer printing were related to interfacial shear and compressive stress, respectively. With the facile transfer-printing prelithiation, high initial Coulombic efficiencies of 99.99% and 99.05% were achieved in graphite and silicon/carbon composite electrode half cells, respectively. The initial Coulombic efficiencies and energy densities in full cells were observed to be significantly improved with the prelithiated electrodes. The roll-to-roll transfer printing provides a high-performance, controllable, scalable and industry-adaptable prelithiation in LIBs.

预锂化可以提高锂离子电池 (LIB) 的性能。迫切需要一种具有高质量和高工业兼容性的经济高效的预锂化策略。在此，我们开发了一种用于 LIB 阳极连续预锂化的卷对卷电沉积和转印系统。通过卷对卷压延，预制阳极可以完全转印到电沉积锂金属上。转印过程中的界面分离和粘附分别与界面剪切和压应力有关。通过简便的转印预锂化，石墨和硅/碳复合电极半电池分别实现了 99.99% 和 99.05% 的高初始库仑效率。全电池的初始库仑效率和能量密度被观察到使用预锂化电极显着改善。卷对卷转印为锂离子电池提供了一种高性能、可控、可扩展和行业适应性强的预锂化。