氢单位重量的能量密度是石油的3倍,且燃烧时仅生成水,因此,作为无污染能源有其广阔的前景。目前,氢电池已进入实用阶段。 氢的输送,过去或采用高压气泵法,或以液态氢形式。前者容器远重于氢,输送量有限,成本过高,且输送过程中还存在氢泄漏的问题;而以液态氢输送,虽输送量大增,但必须用保冷达-253℃的容器,同样有成本高的问题。一旦发生泄漏,更有爆炸的危险。 The energy density per unit weight of hydrogen is three times that of petroleum and produces only water when burned, so it has a promising future as a non-polluting energy source. At present, hydrogen batteries have entered a practical stage. Hydrogen delivery, in the past or by high pressure gas pump, or in the form of liquid hydrogen. The former container is far heavier than hydrogen, the delivery volume is limited, the cost is too high, and there is still a problem of hydrogen leakage in the process of transportation; while with liquid hydrogen delivery, although the delivery volume greatly increases, it is necessary to keep the container up to -253 ° C, There are high cost issues. In the event of a leak, there is a danger of explosion.