Abstract: The present invention provides a polarized electrode 12 containing mixed activated carbon composed of at least two activated carbons with different specific surface areas, and the specific surface area of the mixed activated carbon is not less than 900 m2/g and less than 1900 m2/g. By setting the specific surface area of the mixed activated carbon to less than 1900 m2/g, the resistance reduction ratio of the polarized electrode 12 rapidly increases.

Abstract: A power supply system includes a fuel cell, a capacitor connected in parallel to the fuel cell, a voltage boost means for boosting output voltages from the fuel cell and the capacitor to supply the electric motor with electric power resulting from the boosted voltages, a voltage control means for further boosting an output voltage from the voltage boost means, a secondary battery connected to the voltage control means, an external power source connecting means connected to the one end of the voltage boost means and in parallel with the fuel cell and for receiving supply of electric power from an external power source, and an electronic control unit which charges the secondary battery from the external power source by controlling step-up ratios of the voltage boost means and the voltage control means such that a voltage applied to the secondary battery during the charging becomes a desired voltage.

Abstract: The present invention provides a fuel cell vehicle capable of displaying information with high usability to a driver or the like in view of appropriately planning a task related to the fuel cell vehicle. A second indicator (I2) displays an available electric power supply of a fuel cell (11), a capacitor (12) and a second cell (16), respectively. A third indicator (I3) displays a remained fuel amount. A fourth indicator (I4) displays a charge amount of the capacitor (12) and the second cell (16), respectively.

Abstract: A fuel cell power supply includes a fuel cell voltage detection means which detects a terminal-to-terminal voltage of the fuel cell; an internal resistance calculation means which supplies electric power from a battery to a motor via a second DC-DC converter and calculates a resistance value of an internal resistance of the fuel cell on the basis of a detection voltage of the fuel cell in a state where a current output of the fuel cell is stopped, a detection voltage of a terminal-to-terminal voltage of the fuel cell in a state where the output current of the fuel cell is adjusted to a value, and the value; and a deterioration level determination means which determines a deterioration level of the fuel cell on the basis of a change in the resistance value of the internal resistance of the fuel cell.

Abstract: A vehicle power supply device which prevents a lack of power supply to the motor and insufficient recovery of regenerative electric power of the motor at the time of switching between power running and regeneration. First input-output sections (3a, 3b) of a first DC-DC converter (3) are connected to second input-output sections (4d, 4e) of a PDU (4), second input-output sections (3c, 3d) of the first DC-DC converter (3) are connected to a fuel cell (1) and a capacitor (2), first input-output sections (20a, 20b) of a second DC-DC converter (20) are connected to second input-output sections (4d, 4e) of the PDU (4), and second input-output sections (20c, 20d) of the second DC-DC converter (20) are connected to a lithium-ion battery (21).

Abstract: It is an object of the present invention to provide a fuel cell power supply device that can realize a reduction in size and improvement of durability of an accumulating unit while maintaining output performance that is applicable when large output is requested.

Abstract: It is an object of the present invention to provide a vehicle that can efficiently cool or heat a group of the components, in view of appropriate operating temperature ranges of respective components configuring a fuel cell power supply system, while realizing saving of a mounting space in the vehicle and cost of the vehicle. A vehicle 11 mounted with a fuel cell power supply system includes at least a fuel cell 1, an accumulating unit 12 including a capacitor 2 and a secondary battery 6 connected to the fuel cell 1, a motor 5 serving as a power source for the vehicle 11 to which output sections of the fuel cell 1 and the accumulating unit 12 are connected, and a PDU 4 provided between the output sections and the motor 5, wherein a component group of the power supply system including the fuel cell 1, the accumulating unit 12, and the PDU is arranged so as to be cooled by a cooling medium which flows inside the vehicle 11, in order from one having a smallest heating generation amount.

Abstract: A power supply device for vehicles, output units (10a, 10b) thereof are connected to a motor (5), includes a fuel cell (1) which is connected to the output units (10a, 10b), a capacitor (2) which is connected in parallel to the fuel cell (1), a lithium ion battery (21) which is connected in parallel to the capacitor (2) through a DC/DC converter (20), and a current control means (32) which limits an output current of the lithium ion battery (21) to at most an output upper-limit current (Ibout_lmt) when power is supplied to the motor (5) from the lithium ion battery (21) during a power running operation of the motor (5), and limits an input current into the lithium ion battery (21) to at most an input upper-limit current smaller than the output upper-limit current (Ibin_lmt) through the DC/DC converter (20) when regenerative power of the motor (5) is recovered into the lithium ion battery (21) during a regenerative operation of the motor (5).

Abstract: A fuel cell power supply device capable of externally supplying electric power in a stable manner is provided.

Abstract: A vehicle suitable in consideration of each of an electric power supply amount to a motor and a mounting space of a fuel cell or the like is provided. The outputs of a fuel cell (11) and a battery (12) are raised in voltage by a voltage raising device (13), and electric power of these raised voltages is supplied to a motor (15). Therefore, a total output voltage of the fuel cell (11) and the battery (12), and thus, their total volume can be correspondingly reduced. Namely, it is possible to reduce the total volume of a designated article group including the fuel cell (11), the battery (12) and the voltage raising device (13), and thus, a mounting space of the designated article group in the vehicle (1). Further, a space of a frame (22) arranged on the upper side of a floor panel (20) and the lower side of a seat (24) in a vehicle interior space can be utilized effectively as the mounting space of the designated article group as it is without enlarging this space of the frame.

Abstract: An alkali-activated carbon for an electric double layer capacitor electrode is provided in which the alkali-activated carbon has a first pore group having a pore diameter D in the range of D?2 nm, a second pore group having a pore diameter D in the range of 2 nm<D?10 nm, and a third pore group having a pore diameter D in the range of 10 nm<D?300 nm. When the pore volume of the first pore group is Pv1, the pore volume of the second pore group is Pv2, the pore volume of the third pore group is Pv3, and the sum total Pv0 of the pore volumes is Pv0=Pv1+Pv2+Pv3, the pore volumes being obtained by a nitrogen gas adsorption method, the proportion A of the pore volume Pv1 of the first pore group relative to the sum total Pv0 of the pore volumes is A?60%, and the proportion B of the pore volume Pv2 of the second pore group relative to the sum total Pv0 of the pore volumes is B?8%.

Abstract: To produce activated carbon for an electrode of an electric double-layer capacitor, the following steps are carried out sequentially: a step of subjecting a massive mesophase pitch to a pulverizing treatment to provide a pulverized powder; a step of subjecting the pulverized powder to an infusibilizing treatment under conditions of a temperature in a range of 300° C. (inclusive) to 450° C. (inclusive) in the atmospheric air current, a step of subjecting the pulverized powder to a carbonizing treatment under conditions of a temperature in a range of 600° C. (inclusive) to 900° C. (inclusive) in an inert gas current to provide a carbonized powder, a step of subjecting the carbonized powder to an alkali activating treatment under conditions of a temperature in a range of 500° C. (inclusive) to 1,000° C. (inclusive) in an inert gas atmosphere, followed by the post treatments, thereby producing alkali-activated carbon, and a step of subjecting the alkali-activated carbon to a pulverizing treatment.

Abstract: The use of an activated carbon precursor having a weight reduction rate of 1% or less from the temperature at which its weight reduction ends according to thermogravimetric analysis, to 500 C, when manufacturing activated carbon by activating an activated carbon precursor obtained by heating a mixture of a carbonaceous material and an alkali metal hydroxide at a reduced pressure and/or in the presence of an inert gas.

Abstract: To produce activated carbon for an electrode of an electric double-layer capacitor, the following steps are carried out sequentially: a step of subjecting a massive mesophase pitch to a pulverizing treatment to provide a pulverized powder; a step of subjecting the pulverized powder to an infusibilizing treatment under conditions of a temperature in a range of 300° C. (inclusive) to 450° C. (inclusive) in the atmospheric air current, a step of subjecting the pulverized powder to a carbonizing treatment under conditions of a temperature in a range of 600° C. (inclusive) to 900° C. (inclusive) in an inert gas current to provide a carbonized powder, a step of subjecting the carbonized powder to an alkali activating treatment under conditions of a temperature in a range of 500° C. (inclusive) to 1,000° C. (inclusive) in an inert gas atmosphere, followed by the post treatments, thereby producing alkali-activated carbon, and a step of subjecting the alkali-activated carbon to a pulverizing treatment.

Abstract: A power supply apparatus has a lead storage battery and an electric double-layer capacitor which are connected in parallel to each other, and a starter generator for being supplied with electric power discharged from the storage battery and the electric double-layer capacitor and for operating as an electric generator after an engine is started. Electric power generated by the starter generator is supplied to charge the storage battery and the electric double-layer capacitor. An IPU as a connection switching device is connected between the storage battery and the electric double-layer capacitor, and the starter generator. A line length between the electric double-layer capacitor and the starter generator is shorter than a line length between the lead storage battery and the starter generator.

Abstract: In an electric double-layer capacitor, a solution of a quaternary ammonium borofluoride compound in propylene carbonate is used as an electrolyte. The electrode includes alkali-activated carbon made using meso-phase pitch as a starting material, and a conductive filler having a rest potential smaller than that of the alkali-activated carbon in the electrolyte. The amount Fc of conductive filler incorporated in the electrode is set in a range of 10% by weight?Fc?40% by weight. Such electric double-layer capacitor has a large electrostatic capacity and excellent durability.

Abstract: A carbonized product 10 used for production of activated carbon for an electrode of an electric double-layer capacitor, includes a plurality of crystallites 12 each having a graphite structure in an amorphous carbon matrix 11. The interlayer distance d002 of the crystallites 12 is set a value equal to or larger than 0.347 nm. Thus, by using this carbonized product, it is possible to produce activated carbon having a high electrostatic capacity density (F/cc) for an electrode of an electric double-layer capacitor.

Abstract: The present invention is mainly configured of a separator for an electric double-layer capacitor that comprises an aramid fiber, a polyester fiber, a glass fiber, and a silica (inorganic compound for forming hydrosol) containing a particulate silica (particulate inorganic compound) of not less than 1 nm and not more than 500 nm, wherein total of the silica and the glass fiber is not less than 10 mass percent and not more than 50 mass percent; the electric double-layer capacitor comprising the separator; and a manufacturing method of the separator for the electric double-layer capacitor which method comprises a mixing process for mixing the aramid fiber, the polyester fiber, the glass fiber, and the silica sol and a paper making process for making paper from the mixture.

Abstract: In an electric double-layer capacitor, a solution of a quaternary ammonium borofluoride compound in propylene carbonate is used as an electrolyte. The electrode includes alkali-activated carbon made using meso-phase pitch as a starting material, and a conductive filler having a rest potential smaller than that of the alkali-activated carbon in the electrolyte. The amount Fc of conductive filler incorporated in the electrode is set in a range of 10% by weight?Fc?40% by weight. Such electric double-layer capacitor has a large electrostatic capacity and excellent durability.

Abstract: The present invention is mainly configured of a separator for an electric double-layer capacitor that comprises an aramid fiber, a polyester fiber, a glass fiber, and a silica (inorganic compound for forming hydrosol) containing a particulate silica (particulate inorganic compound) of not less than 1 nm and not more than 500 nm, wherein total of the silica and the glass fiber is not less than 10 mass percent and not more than 50 mass percent; the electric double-layer capacitor comprising the separator; and a manufacturing method of the separator for the electric double-layer capacitor which method comprises a mixing process for mixing the aramid fiber, the polyester fiber, the glass fiber, and the silica sol and a paper making process for making paper from the mixture.