Apparatus, systems, and methods for bonding one element (210) of an electrochemical cell or cell stack to another (211) wherein a sealing grove (218) with a complex cross-sectional shape receives and retains a bead (214) of adhesive prior to being assemble...

A monopolar cell pack for a direct methanol fuel cell is provided. In the monopolar cell pack, series-connection of electrodes makes it unnecessary for connections to pass through an electrolyte membrane and allows single cells to be electrically connected...

The contact creation device has a membrane electrode device to make contact with two counter-posed bent metal sheets, by applying even pressure. Two counter-posed metal sheets (B) fit either side of a membrane electrode device (4-6). A contact link (7) for...

A PEM fuel cell having serpentine flow field channels (66a-66j) comprising a plurality of serially-linked serpentine segments (A-E) extending between inlet (72) and exhaust (74) manifolds. Each segment has an inlet leg (76), an exit leg (78), at least one ...

A PEM fuel cell having serpentine flow field channels wherein each channel has an inlet leg, an exit leg, at least one medial leg therebetween and hairpin curves connecting the legs to each other. The legs all extend in the same general direction between a...

A fuel cell (50) has a joint body (51, 52, 53) produced by interposing an electrolyte member (51) between a pair of electrodes (52, 53), and has a separator (300A) which holds the joint body (51, 52, 53). In the fuel cell (50) a plurality of projections (3...