Inkjet and extrusion printing are widely employed technologies in the field of printed electronics. They provide opportunity of manufacturing diverse electronic devices on various types of substrates by employing digital layouts under ambient conditions. In this short review, fundamentals about inkjet mechanisms and ink fluidic characteristics are presented. The interaction between individual droplets and that of droplets with substrates, which are pivotal to the printing resolution and uniformity, are analyzed. In addition, some issues on droplet‐based extrusion 3D printing are discussed as an extension of conventional inkjet printing. The recent progress in application of inkjet and extrusion printing in the field of electrochemical energy storage, ranging from batteries and supercapacitors to energy storage electrochromics, is also highlighted. Challenges and perspectives are discussed at the end. It is expected that inkjet and extrusion printing will be potent technologies to the development of electrochemical energy devices for the flexible and wearable electronics.

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喷墨和挤出印刷技术用于电化学储能：Minireview

喷墨和挤出印刷是印刷电子领域中广泛采用的技术。通过在环境条件下采用数字布局，它们提供了在各种类型的基板上制造各种电子设备的机会。在这篇简短的评论中，介绍了有关喷墨机理和墨水流体特性的基础知识。分析了单个墨滴和带有基材的墨滴之间的相互作用，这对打印分辨率和均匀性至关重要。此外，还讨论了有关基于液滴的挤出3D打印的一些问题，这些问题是对传统喷墨打印的扩展。还强调了喷墨和挤出印刷在电化学能量存储领域中的最新进展，从电池和超级电容器到能量存储电致变色材料。最后讨论了挑战和观点。预计喷墨和挤出印刷将成为开发用于柔性和可穿戴电子设备的电化学能源设备的有效技术。