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Currently, owing to the growing demand for energy, the decreasing quantity of traditional fossil fuels such as coal natural gas is rapidly arousing the attention of the public. Among the various alternatives to traditional fossil fuels, hydrogen fuel cells have obtained significant attention due to their environmental friendliness and the capability of converting energy with higher efficiency. With regard to hydrogen-oxygen fuel cells, this article not only explores their working principle and primary applications, but also discusses and analyzes them, so that hydrogen-oxygen fuel cells can be maximally utilized. Despite of the fact that the large-scale use of hydrogen fuel cells is still facing challenges including significant safety risks, the superior difficulty in storage and transportation, and high costs, technological advancements, which lead to the corresponding reduction of cost, could contribute to the extended range of potential applications in construction, vessels and other regions in addition to more prospects in aerospace which has already been applied.
Junyi Cai (Sun,) studied this question.