In response to the growing demand for lithium-ion batteries (LIBs), we demonstrate a solvent-free manufacturing technology that can avoid toxic organic solvents and form unique electrode structures to overcome the bottlenecks in low costs and fast charging. The lower tortuosity achieved by the open pores in the dry-printed (DP) electrode allows for a shorter Li+ diffusion pathway, which leads to better rate performance. The DP pouch cells exhibit higher capacity retention of 78% and 69% at 3C and 4C, respectively, compared with 67% and 52% for the slurry cast (SL) cells at the same rates. Moreover, the coating layer on the surface of active materials prevents the excess side reaction between active materials and electrolytes, which prolongs the cycle life of the DP cells. This manufacturing process is a roll-to-roll system with immense potential to be scaled up, providing a more efficient and economical way for battery manufacturing.

为了应对对锂离子电池 (LIB) 不断增长的需求，我们展示了一种无溶剂制造技术，可以避免使用有毒有机溶剂并形成独特的电极结构，以克服低成本和快速充电方面的瓶颈。干法印刷 (DP) 电极中的开孔实现的较低曲折度允许更短的 Li+ 扩散路径，从而带来更好的倍率性能。DP 软包电池在 3C 和 4C 时分别表现出更高的容量保持率，分别为 78% 和 69%，而在相同速率下，浆料铸造 (SL) 电池的容量保持率分别为 67% 和 52%。此外，活性材料表面的涂层防止了活性材料与电解质之间的过度副反应，从而延长了DP电池的循环寿命。这制造过程是一个卷对卷系统，具有巨大的放大潜力，为电池制造提供了一种更高效、更经济的方式。