Abstract: A separator plate for a fuel cell is provided including a first support element and a series of second support elements extending from a first surface of the plate. A series of apertures are disposed between the first support element and the series of second support elements for communicating a reactant gas therethrough for delivery to a flow field of the separator plate.

Abstract: The fuel reservoir for a fuel cell is a fuel reservoir detachably connected with a fuel cell main body, and it is equipped with a fuel-storing vessel of a tube type for storing a liquid fuel and a fuel discharge part; the fuel discharge part is provided with a valve for sealing communication between the inside and the outside of the above fuel-storing vessel. The valve assumes a structure in which a slit is formed in an elastic material and a structure in which a valve member is pressed by a resilient body, and is opened by inserting a fuel-supplying member.

Abstract: A direct liquid feed fuel cell stack that includes Membrane Electrode Assemblies (MEAs) and bipolar plates. Each MEA includes an electrolyte membrane, an anode and a cathode, and the MEA is interposed between stacked bipolar plates. Each bipolar plate includes a groove with a predetermined depth enclosing an electrode region on each face of the bipolar plate, and a plurality of fuel flow holes in the electrode region to supply fuel or oxidant to a corresponding fuel channel, with a sealing member being formed on the groove. The direct liquid feed fuel cell stack prevents fuel leakage and useless fuel consumption, thereby providing longer hours of operation.

Abstract: A battery case is disclosed. The case includes a cover bonded to a body such that a bottom of the cover and the body define at least a portion of the interior of a battery. The cover includes a second metal which is bonded to a first metal included in the battery body. The second metal is clad with a third metal such that the third metal covers less than 90% of an upper surface of the second metal. A hole extends through the second metal and the third metal. The case also includes a feedthrough assembly extending through the hole. The feedthrough assembly includes a feedthrough pin surrounded by a feedthrough body. The feedthrough body includes a fourth metal bonded to the third metal in the cover.

Abstract: A polymer electrolyte medium expressed by the following formula (I): where R1 in the formula represents an aromatic radical-containing functional group, R2 represents an alkyl functional group, R3 represents an ion exchange aromatic functional group, and u represents an integer of 1 to 450.

Abstract: A battery element is housed and sealed in a package body, and further, packed together with a connecting board and a frame by the package body. A laminate material for sealing the battery element is used as an outer package material of a battery pack. Thus, the increase of volume for the pack is reduced as much as possible.

Abstract: An improved redox battery energy storage system is disclosed for reducing oxygen gas levels and separating oxygen gas from hydrogen gas, thus reducing the likelihood of flammable gas explosions. The system includes at least one cell, which includes a positive compartment having positive solution, a negative compartment having negative solution, and a membrane separating the positive and negative compartments. A positive reservoir is in fluid communication with the cell's positive compartment, the positive reservoir defining a positive vent space for positive gas, which includes oxygen. A negative reservoir is in fluid communication with the cell's negative compartment, the negative reservoir defining a negative vent space. A return line is in fluid communication with the negative compartment and the negative reservoir to return the negative solution from the cell to the negative reservoir through the negative vent space.

Abstract: Disclosed herein is a secondary battery module comprising a plurality of unit cells stacked one on another, wherein the unit cells are spaced apart from each other such that a channel for heat dissipation is defined between the unit cells, the battery module further comprises at least one piezoelectric sensor mounted in the channel, and the at least one piezoelectric sensor is connected to a battery management system (BMS). According to the present invention, the piezoelectric sensor is mounted in the channel defined between the unit cells of the secondary battery module. Consequently, no additional space for installing the piezoelectric sensor is needed, and therefore, the increase of the size of the battery module is effectively prevented. Furthermore, the change of the internal pressure of the battery is accurately detected by the piezoelectric sensor, and therefore, the expansion or the explosion of the battery caused due to the overcharge or overheating of the unit cells is effectively prevented.

Abstract: A fuel cell stack includes a stack body, an end separator, a terminal plate, an insulating plate, and an end plate provided at one end of the stack body in a stacking direction. The insulating plate has a recess for accommodating the terminal plate. Further, the insulating plate has a bypass passage connected between a fuel gas supply passage and a fuel gas discharge passage outside the recess for discharging condensed water. An insulating seal member is provided on the end separator to cover the bypass passage. The condensed water flows through an insulated passage formed by the insulating seal member and the bypass passage.

Abstract: An electronic apparatus, such as a camera, is configured to be driven by a fuel cell. The fuel cell includes a fuel unit and a power generation unit. The fuel unit is configured to store fuel, and the power generation unit is configured to generate electric power with at least one power generation cell by receiving fuel from the fuel unit. The camera includes a fuel cell storage section configured to store both the fuel unit and the power generation unit, and a power generation unit determination device configured to determine an output characteristic of the power generation unit. A memory in the power generation unit holds information on one of a voltage, an electric current, and an internal resistance. This information is read by a system controller in the camera.

Abstract: A cylindrical alkaline storage battery suitable to increase its capacity and arranged to prevent a short circuit and internal resistance increase, including an electrode group held in an outer can and formed by rolling up together a negative electrode having a negative-electrode core body and a hydrogen-absorbing alloy layer supported thereon, a positive electrode, and a separator. The negative electrode includes a main part forming inside part of the electrode group, a thin part smaller than the main part in the thickness of the hydrogen-absorbing alloy layer and the amount of a hydrogen-absorbing alloy contained in unit volume of that layer, and a boundary part formed between the main and thin parts and having a hydrogen-absorbing alloy layer thickness varying along the length of the negative-electrode core body. The positive electrode outer end and the negative electrode boundary part are at different positions circumferentially of the electrode group.