A fuel cell comprises: a first electrode having a surface; a second electrode having a surface opposing the first electrode surface; an electrolyte member located between and in contact with the opposing surfaces of the two electrodes; a non-conducting film having a central hole, and positioned between the two electrodes and contacting the outer periphery of the opposing surfaces of the two electrodes, and wherein the central hole surrounds and contacts the electrolyte member; a fuel distribution member for supplying fuel to the first electrode; an oxidant distribution member for supplying oxidant to the second electrode.    Two further configurations of the above cell are also claimed.    The non-conducting film, e.g. polypropylene, is bonded to the two electrodes and the catalyst layers; the electrolyte deposits each comprise a perfluorocarbon copolymer proton conducting material or a mixture of at least two perfluorocarbon copolymer proton conducting materials; each electrolyte deposit in the dry state is between 10 to 20 mg per 5 cm2 electrode area of a 5% conc. soln. of the conducting material; the catalyst layers are Pt; the electrolyte membrane has an equiv. wt. 1000g or less, and a thickness 125 micron or less, or, if thinner, has a higher equiv. wt.    USE/ADVANTAGE -   Solid polymer electrolyte or proton exchange membrane fuel cell, operable at near ambient temp. and press. without external humidification. Operates at near ambient temp. and press. with no requirement for humidification, thus allowing for less complicated and lighter modules.    In an example, a fuel cell assembly (5) includes gaseous reactants which include a fuel source (10) and an oxidiser source (12). The gases (10,12) diffuse through anode backing layer (14) and cathode backing layer (16), resp., to porous electrodes forming an oxidising electrode or anode (18) and a reducing electrode or cathode (20). The electrodes have deposits of solid electrolyte (22,24) together with an oversized membrane (30) positioned therebetween with a hole (32), separate the anode (18) and the cathode (20). Anode connection (42) and cathode connection (44) are used to interconnect with an external circuit or with other fuel cell assemblies. A membrane/electrodes assembly is prepared by putting the components together and pressing for about 90 secs. at a press. of 1000 psig and at a temp. 130 deg.C.