Tu Zhantong, Chen Kaiqi, Liu Sijie, Wu Xin
School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai, Guangdong, 519082, China.
Research Institute of Tsinghua University in Shenzhen, Shenzhen, Guangdong, 518000, China.
Small Methods. 2025 Jul;9(7):e2401912. doi: 10.1002/smtd.202401912. Epub 2025 Feb 6.
The inherent risks of fluid leakage, combustion, and explosive reactions constitute major impediments to the widespread commercial deployment of lithium battery technologies. To solve these problems, solid-state electrolytes presenting the advantages of non-leakage, good thermal stability, non-volatilization, low spontaneous combustion or explosion risk have been proposed. However, one of the key issues for solid electrolytes is the ultra-low ionic conductivity. To improve the ionic conductivity, new materials are being developed with complex procedures or more exotic, high-cost materials. Actually, the performance of solid electrolytes can be strategically enhanced through rational structural design and customized fabrication strategies. Recently, the combination of 3D printing techniques with solid-state batteries has been regarded as an efficient solution for the future energy crisis, and therefore, much research effort has been spent on it. This article reviewed the research advances around the integration of 3D printing with solid electrolytes. The advantages of various solid electrolytes and major 3D printing techniques are summarized at first. Subsequently, this review examines the integration of 3D printing technologies in the fabrication of diverse solid electrolytes, analyzing their implementation through case studies of solid-state battery applications. Finally, the challenges and prospective for future 3D printing of solid electrolytes are outlined.
液体泄漏、燃烧及爆炸反应等固有风险是锂电池技术广泛商业应用的主要障碍。为解决这些问题，人们提出了具有不漏液、良好热稳定性、不挥发、自燃或爆炸风险低等优点的固态电解质。然而，固态电解质的关键问题之一是离子电导率极低。为提高离子电导率，人们正在研发采用复杂工艺或更奇特、高成本材料的新型材料。实际上，通过合理的结构设计和定制的制造策略，可以从战略上提高固态电解质的性能。近来，3D打印技术与固态电池的结合被视为解决未来能源危机的有效方案，因此人们对此投入了大量研究精力。本文综述了3D打印与固态电解质集成方面的研究进展。首先总结了各种固态电解质的优点和主要3D打印技术。随后，本综述考察了3D打印技术在不同固态电解质制造中的集成情况，通过固态电池应用案例分析其实施情况。最后，概述了未来固态电解质3D打印面临的挑战和前景。
