燃料电池种类繁多的原因在于,燃料有氢气、烃、肼(N_2H_4)、醇类、氨、煤气等液体或气体.电解质又分为液态与固态,如稀硫酸、氯化钠溶液、氢氧化钠溶液、熔融的碳酸盐、固态常用氧化锆-氧化钇,这也给书写电极反应式造成了困难,本文通过分析典例反应前后微粒的形式,运用得失电子、电荷、原子三种守恒关系,巧妙突破难点. The reason for the wide variety of fuel cells is that the fuel contains hydrogen, hydrocarbons, hydrazine (N_2H_4), alcohols, ammonia, gas and other liquids or gases. The electrolyte is divided into liquid and solid, such as dilute sulfuric acid, sodium chloride solution, sodium hydroxide Solution, molten carbonate and zirconia-yttrium oxide which are commonly used in the solid state, which also make it difficult for the writing electrode to react. In this paper, by analyzing the form of microparticles before and after the typical reaction and using the three conservation relations of gain and loss of electrons, charges and atoms, Clever breakthrough difficult.