Abstract: An electrochemical conversion system (10) is disclosed having a housing (11) divided by a hydrogen concentration cell (12) so as to define a first chamber (13) and a second chamber (14). A first mass of hydride material (17) is contained within the first chamber while a second mass of hydride material (18) is contained within the second chamber. The hydrogen concentration cell has a first gas diffusion electrode (20), a second gas diffusion electrode (21) and a proton conductive membrane (22) therebetween. The release of hydrogen from one of the masses of hydride material and its redox reaction creates an electrical potential across the cell.

Abstract: An electrochemical conversion system (70) is disclosed having a tubular housing (71), a thermal inertial core (72), and a tubular hydrogen electrochemical cell (79) which in combination define a first chamber (73) and a second chamber (74). A first tubular mass of hydride material (90) is contained within the first chamber while a second tubular mass of hydride material (91) is contained within the second chamber. The hydrogen concentration cell has a first gas diffusion electrode (20), a second gas diffusion electrode (21) and a proton conductive membrane (22) therebetween. The release of hydrogen from one of the masses of hydride material and its redox reaction creates an electrical potential across the cell. The housing (71) is adapted to transfer heat to and from the second mass of hydride material (91). Heat is also transferred between the thermal inertial core (72) and the first mass of hydride material (90).

Abstract: An electrochemical conversion system (70) is disclosed having a housing divided by a hydrogen electrochemical cell (79) so as to define a first chamber (73) and a second chamber (74). A first mass of hydride material (90) is contained within the first chamber while a second mass of hydride material (91) is contained within the second chamber. The hydrogen concentration cell has a first gas diffusion electrode (20), a second gas diffusion electrode (21) and a proton conductive membrane (22) therebetween. The release of hydrogen from one of the masses of hydride material and its redox reaction creates an electrical potential across the cell. The housing first chamber (73) is adapted to transfer from the skin of a wearer.

Abstract: An electrochemical conversion system 10 is disclosed having a housing (11) which includes boiling chamber (12), a cell holding block (13), and a condensing chamber (14) coupled by conduits. The system also includes an electrochemical cell (23) mounted within the cell holding block, a heater (24) mounted in thermal communication with the boiling chamber, and a cooler (25). With the energization of the heater a portion of the working fluid is heated to a vapor state so as to create a high total pressure with a low partial pressure of hydrogen gas upon one side of the electrochemical cell, while simultaneously a high partial pressure of hydrogen gas is developed on the opposite side of the cell. The hydrogen partial pressure differential across the cell causes an electrical potential across the cell as hydrogen migrates across the cell.