1. College of Metallurgical Engineering, Xi’an University of Architecture and Technology, Xi‘’an 710000, China
2. Shanghai Putai Lai New Energy Technology Co., Ltd., Shanghai 201315, China
3. Shenzhen Xinjiatuo Automation Technology Co., Ltd., Shenzhen 518000, China
With the rapid development of the new energy industry, the demand for highenergy density batteries is increasing. Three dimensional structures can improve energy density through innovative battery configurations, shortened ion diffusion distances and increased electrode material surface area, but traditional processes are difficult to meet manufacturing requirements. 3D printing has shown great potential in the manufacturing of three-dimensional structured batteries, enabling efficient design and manufacturing of highperformance batteries with complex geometric structures. The review focuses on the research progress and application effects in improving battery performance of four 3D printing technologies, namely direct ink writing (DIW), inkjet printing (IJP), stereolithography apparatus (SLA) and fused deposition modeling (FDM). Research has shown that the grid structured electrode prepared by DIW technology exhibits superior electrochemical performance and maintains stable capacity during high rate charge-discharge cycles, which is significantly improved compared to electrodes prepared by traditional methods. However, 3D printing technology still faces challenges in electrode manufacturing, such as material fluidity, thickness control, and long-term cycling performance. Besides, future research needs to further explore the design rationality of 3D-printed electrode, finding a balance between structural complexity and functional performance. Solving above problems is very important for the future 3D printing technology development of lithiumion batteries.