Throughout the development of battery technologies in recent years, the solid-state electrolyte (SSE) has demonstrated outstanding advantages in tackling the safety shortcomings of traditional batteries while meeting high demands on electrochemical performances. The traditional manufacturing strategies can achieve the fabrication of batteries with simple forms (coin, cylindrical, and pouch), but encounter limitations in preparing complex-shaped or micro/nanoscaled batteries especially for inorganic solid electrolytes (ISEs). The advancement in novel manufacturing techniques like 3D printing has enabled the assembly of different solid electrolytes (polymeric, inorganic, and composites) in a more complex geometric configuration. However, there is a huge gap between the capabilities of the current 3D printing techniques and the requirements for battery production. In this review, we compare the traditional manufacturing to several novel 3D printing techniques, highlighting the potential of 3D printing in the SSE manufacturing. The latest SSE manufacturing progress in the group of direct-writing (DW) based or lithography-based printing technologies are summarized separately from the perspectives of feedstock selection, build envelope, printing resolution, and application (nano-scaled, flexible, and large-scale battery grids). Throughout the discussion, some challenges associated with manufacturing SSEs via 3D printing such as air/moisture sensitivity of samples, printing resolution, scale-up capability, and long-term sintering for ISEs have been put forward. This review aims to bridge the gap between 3D printing techniques and battery requirements by analyzing the existing limitation in SSE manufacturing and point out future needs.

在近年来电池技术的整个发展过程中，固态电解质（SSE）在解决传统电池的安全性缺陷的同时，还满足了对电化学性能的高要求，显示出突出的优势。传统的制造策略可以实现具有简单形式（硬币形，圆柱形和袋形）的电池的制造，但是在制备复杂形状的或微型/纳米级的电池（尤其是用于无机固体电解质（ISE））中遇到局限性。诸如3D打印之类的新型制造技术的进步使得能够以更复杂的几何结构组装不同的固体电解质（聚合物，无机和复合材料）。然而，当前的3D打印技术的功能与电池生产的要求之间存在巨大差距。在本文中，我们将传统制造与几种新颖的3D打印技术进行了比较，突出了3D打印在SSE制造中的潜力。从原料选择，信封尺寸，打印分辨率和应用（纳米级，柔性和大尺寸）的角度出发，分别总结了基于直写（DW）或基于光刻的打印技术组中SSE的最新制造进展。缩放电池网格）。在整个讨论中，已经提出了与通过3D打印制造SSE相关的一些挑战，例如样品的空气/水分敏感性，打印分辨率，放大能力以及ISE的长期烧结。