Li Xiang, Huang Qianghua, Liu Yitao, Zhao Baodi, Li Jiepu
China Special Equipment Inspection and Research Institute, Beijing 100029, China.
Key Laboratory of Safety of Hydrogen Energy Storage and Transportation Equipment for State Market Regulation, Beijing 100029, China.
Materials (Basel). 2023 Jul 31;16(15):5366. doi: 10.3390/ma16155366.
Type IV hydrogen storage cylinders comprise a polymer liner and offer advantages such as lightweight construction, high hydrogen storage density, and good fatigue performance. However, they are also characterized by higher hydrogen permeability. Consequently, it is crucial for the polymer liner material to exhibit excellent resistance to hydrogen permeation. International organizations have established relevant standards mandating hydrogen permeation tests for the liner material of type IV on-board hydrogen storage cylinders. This paper provides a comprehensive review of existing research on hydrogen permeability and the hydrogen permeation test methods for the polymer liner material of type IV on-board hydrogen storage cylinders. By delving into the hydrogen permeation mechanism, a better understanding can be gained, offering valuable references for subsequent researchers in this field. This paper starts by thoroughly discussing the hydrogen permeation mechanism of the liner material. It then proceeds to compare and analyze the hydrogen permeation test methods specified by various standards. These comparisons encompass sample preparation, sample pretreatment, test device, test temperature and pressure, and qualification indicators. Then, this study offers recommendations aimed at enhancing the hydrogen permeation test method for the liner material. Additionally, the influence of test temperature, test pressure, and polymer material properties on the hydrogen permeability of the liner material is discussed. Finally, the influences of the test temperature, test pressure, and polymer material properties on the hydrogen permeability of the liner material are discussed. Future research direction on the hydrogen permeability and hydrogen permeation test method of the liner material of the type IV hydrogen storage cylinder has been prospected.
IV型储氢瓶由聚合物内胆构成，具有诸如结构轻量化、储氢密度高和疲劳性能良好等优点。然而，它们也具有较高的氢气渗透率这一特点。因此，聚合物内胆材料具有优异的抗氢渗透性能至关重要。国际组织已制定相关标准，要求对IV型车载储氢瓶的内胆材料进行氢渗透测试。本文全面综述了关于IV型车载储氢瓶聚合物内胆材料的氢气渗透率及氢渗透测试方法的现有研究。通过深入研究氢渗透机理，可以获得更好的理解，为该领域的后续研究人员提供有价值的参考。本文首先深入讨论了内胆材料的氢渗透机理。然后对各种标准规定的氢渗透测试方法进行比较和分析。这些比较包括样品制备、样品预处理、测试装置、测试温度和压力以及合格指标。接着，本研究针对改进内胆材料的氢渗透测试方法提出了建议。此外，还讨论了测试温度、测试压力和聚合物材料性能对内胆材料氢气渗透率的影响。最后，展望了IV型储氢瓶内胆材料氢气渗透率及氢渗透测试方法的未来研究方向。
