A fuel cell module, comprising: a membrane electrode assembly comprising at least one membrane for fuel cell reactions; two gas diffusion layers respectively coupled with two opposite sides of the membrane electrode assembly; two current collectors respectively coupled with the two gas diffusion layers; two sealing members respectively coupled with the two current collectors; and a fluid flow plate assembly coupled with the membrane electrode assembly at a first side of the two opposite sides of the membrane electrode assembly having at least a corresponding one of the two gas diffusion layers, at least a corresponding one of the two current collectors, and at least one of the two sealing members between the fluid flow plate assembly and the first side of the membrane electrode, the fluid flow plate assembly comprising a fluid flow channel having an exposed side that is coupled with a membrane of the at least one membrane, wherein at least one of the membrane electrode assembly, the two gas diffusion layers, the two current collectors, and the two sealing members has, prior to an assembly of the membrane electrode assembly, the two gas diffusion layers, the two current collectors, and the two sealing members, a non-planar surface that is at least partially flattened when the assembly occurs, wherein at least one of the two current collectors has the non-planar surface protruding toward the membrane electrode assembly such that a contact force is provided by the at least one of the two current collectors toward a corresponding one of the two gas diffusion layers and a carrier for the non-planar surface, the carrier having a slot for receiving an edge structure of the non-planar surface, wherein the edge structure slides in the slot when the non-planar surface is pressed. a membrane electrode assembly comprising at least one membrane for fuel cell reactions; two gas diffusion layers respectively coupled with two opposite sides of the membrane electrode assembly; two current collectors respectively coupled with the two gas diffusion layers; two sealing members respectively coupled with the two current collectors; and a fluid flow plate assembly coupled with the membrane electrode assembly at a first side of the two opposite sides of the membrane electrode assembly having at least a corresponding one of the two gas diffusion layers, at least a corresponding one of the two current collectors, and at least one of the two sealing members between the fluid flow plate assembly and the first side of the membrane electrode, the fluid flow plate assembly comprising a fluid flow channel having an exposed side that is coupled with a membrane of the at least one membrane, wherein at least one of the membrane electrode assembly, the two gas diffusion layers, the two current collectors, and the two sealing members has, prior to an assembly of the membrane electrode assembly, the two gas diffusion layers, the two current collectors, and the two sealing members, a non-planar surface that is at least partially flattened when the assembly occurs, wherein at least one of the two current collectors has the non-planar surface protruding toward the membrane electrode assembly such that a contact force is provided by the at least one of the two current collectors toward a corresponding one of the two gas diffusion layers and a carrier for the non-planar surface, the carrier having a slot for receiving an edge structure of the non-planar surface, wherein the edge structure slides in the slot when the non-planar surface is pressed.