摘要:
When producing an electrode for use in a three-dimensional battery, an active material is combined with at least one of a separator, a dividing wall, and a current collector for simultaneous formation. Both the dividing wall and the current collector are planar or are so formed as to have projected portions in needle, plate, wave, particle, or the like form. Both the dividing wall and the current collector may be provided with a cooling structure. As an additional current collector, an ion permeable current collector, which has voids therein, permits passage of ions, and exhibits electrical conductive properties, is provided.
摘要:
A cell capable of being charged/discharged at high rate wherein a molded piece of a positive electrode active material is placed in an electrolytic solution in one of two cells interconnected through a separator, a molded piece of a negative electrode active material is placed in an electrolytic solution in the other cell, and current collectors are disposed in the cells. Conventionally, active materials having the same charging/discharging characters have been used. Therefore, high-rate chargeable/dischargeable cells having a small cell capacity but capable of being charged/discharged with large current and low-rate chargeable/dischargeable cells capable of being charged/discharged with small current and having a large cell capacity have been separately produced, and therefore there have been problems such as the one that there have been no cells capable of being charged/discharged with large current and having a large cell capacity. According to the invention, a combination of at least two kinds of active material molded pieces having different charging/discharging characteristics is used for at least either the positive or negative active material and placed in one cell, thereby solving the above problem.
摘要:
Electrically conductive filler such as carbon fibers, carbon particles, Ni fibers, Ni particles, Ni foil, Ni-plated fibers, or Ni-plated particles is added to an active material powder such as nickel hydroxide, which is formed into active material products. The active material is cured by using alkali-resistant resin. Thus, particulate active material for use in a three-dimensional battery is produced.
摘要:
At least two types of active materials having different charge and discharge characteristics are combined and incorporated into a same cell to provide a battery. The active materials having different charge and discharge characteristics to be incorporated have any form without limitation to a particulate shape, a plate, a rod or the like. The active materials having different charge and discharge characteristics are incorporated into either or both of the cathode and the anode.
摘要:
When producing an electrode for use in a three-dimensional battery, an active material is combined with at least one of a separator, a dividing wall, and a current collector for simultaneous formation. Both the dividing wall and the current collector are planar or are so formed as to have projected portions in needle, plate, wave, particle, or the like form. Both the dividing wall and the current collector may be provided with a cooling structure. As an additional current collector, an ion permeable current collector, which has voids therein, permits passage of ions, and exhibits electrical conductive properties, is provided.
摘要:
Electrically conductive filler such as carbon fibers, carbon particles, Ni fibers, Ni particles, Ni foil, Ni-plated fibers, or Ni-plated particles is added to an active material powder such as nickel hydroxide, which is formed into active material products. The active material is cured by using alkali-resistant resin. Thus, particulate active material for use in a three-dimensional battery is produced.
摘要:
Disclosed is a nickel positive electrode for a fiber battery having a long life duration, and also being enabling a high output and high capacity to be attained. For this purpose, the nickel positive electrode for a fiber battery is obtained by coating a carbon fiber with nickel, then causing a cathodic polarization in a nickel nitrate bath using the nickel-coated carbon fiber as a cathode, and then immersing the precipitate, which was deposited on the surface of the carbon fiber by the cathodic polarization, in an aqueous caustic alkali solution.
摘要:
A secondary battery according to the present invention includes: a fiber negative electrode including a carbon fiber, the carbon fiber having a surface on which a negative electrode active material coating is formed, the negative electrode active material coating containing a compound represented by a chemical formula 1 which is A a M b X c Z d ; a fiber positive electrode including a carbon fiber, the carbon fiber having a surface on which a positive electrode active material coating is formed, the positive electrode active material coating containing nickel hydroxide; an aqueous electrolyte solution; and a separator. The negative electrode active material coating has a surface uncoated with an electrically conductive material. In the chemical formula 1, A represents at least one kind of metal element selected from the group consisting of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, and Ba; M represents at least one kind of transition metal element selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, Ru, Pd, Ag, Ta, W, Pr, Sm, Eu, and Pb; X represents at least one kind of typical element selected from the group consisting of B, Al, Si, P, S, Ga, and Ge; Z represents at least one kind of typical element selected from the group consisting of O, S, N, F, Cl, Br, and I; and 0≦a≦6, 1≦b≦5, ≦
摘要:
To present an electric railway power-supply system not requiring vast area for installation, excellent in rapid charge-discharge characteristic, and low in manufacturing cost. At a substation 9 for electric railway having a transformer 3 for receiving power from an alternating-current power line 2, a rectifying device 4 connected to the transformer 3, and a feeder line 5 connected to the rectifying device 4, a nickel hydrogen battery 8 is provided as a direct-current supply facility, and the nickel hydrogen battery 8 is directly coupled to the feeder line 5.