Method for manufacturing a fuel cell and a fuel cell

Generation of hydrogen peroxide is one of the degradation factors of the battery characteristics can be suppressed, it is possible to prevent deterioration of the electrolyte body, to obtain a fuel cell capable of maintaining a long-term stable and high battery characteristics. Between the fuel electrode disposed opposite each other (2) and the oxidant electrode (1), in the fuel cell formed by arranging an electrolyte having ion conductivity (3), the electrolyte member (3) is first electrolyte layer (3A), a three-layer structure of the first electrolyte layer second electrolyte layer respectively disposed so as to sandwich (3A) (3B), the second electrolyte layer (3B) is the fuel electrode (2) and said are those in contact with the oxidizer electrode (1), and a layer for preventing permeation of oxygen into the fuel electrode (2) from said oxidant electrode (1), the fuel cell containing the catalyst in the layer.