Supplementary information files for An open-source platform for 3D-printed redox flow battery test cells

Supplementary files for article An open-source platform for 3D-printed redox flow battery test cells The development of new, large-scale stationary energy storage technologies, such as redox flow batteries, is vital to fully utilise renewable energy resources. However, test cells capable of assisting in this development can be prohibitively expensive and unreliable. Here, an open-source, low-cost, customisable 3D-printed test cell is presented as an alternative. These newly developed cells are designed to be printable using affordable desktop 3D-printers and readily available polymers. A simulation-led design optimisation yielded an improved internal manifold geometry that demonstrated improved real-world performance. The polymers used have been tested for chemical compatibility and through the use of advanced X-ray micro-CT, optimised parameters for 3D-printing have been identified. This framework provides a straightforward process enabling researchers to produce robust cells at an extremely low cost, helping to democratise research and widen accessibility to flow electrochemistry.《面向3D打印氧化还原液流电池（redox flow battery）测试单元的开源平台》论文补充材料。为充分利用可再生能源，开发氧化还原液流电池等新型大规模固定式储能技术至关重要。然而，可助力该领域研发的测试单元往往造价高昂且可靠性不佳。为此，本文提出一款开源、低成本且可定制的3D打印测试单元作为替代方案。该新型测试单元可通过普及型桌面3D打印机与市售通用聚合物完成打印。通过仿真驱动的设计优化，得到了一款优化后的内部歧管结构，其实际应用性能得到显著提升。所用聚合物已完成化学相容性测试，并借助先进的X射线显微计算机断层扫描（X-ray micro-CT）技术，确定了3D打印的最优工艺参数。该研发框架提供了一套简便易行的流程，可帮助研究人员以极低的成本制备性能可靠的测试单元，助力推动研究民主化，并提升流动电化学领域的研究可及性。