摘要:
A secondary battery module comprises a casing in which vents are formed so as to allow outside air to flow in a vertical direction and one or more partition walls partition an internal space of the casing into a plurality of cell chambers. The partition wall comprises the pipe member as communication path to communicate between the cell chambers and the outside of the casing so as to allow outside air to be introduced into the internal space of the cell chambers. The secondary battery module further comprises a plurality of rod-shaped battery cells housed in the cell chambers and beams to support the battery cells along a horizontal direction and at predetermined intervals in the vertical direction in the cell chambers such that a cell axis direction is perpendicular to the vertical direction and extends along the partition wall.
摘要:
A long-life battery whose properties do not deteriorate after charge-discharges cycles is provided. A non-aqueous electrolyte secondary battery includes a cathode, an anode, and a non-aqueous electrolytic solution containing an electrolyte. At least one of the cathode and the anode includes a binder. The binder includes a layer having electron conductivity on a surface thereof. The binder improves the contact property between particles of the active materials of the battery and the conductivity in the electrode without impairing the binding property of the binder. Preferably, the binder includes a metal on the surface thereof and the metal does not form an alloy with lithium to further improve the lifetime of the battery.
摘要:
A fuel cell is provided which can control an optimum fuel concentration according to an output without a sensor for measuring the fuel concentration. The fuel cell uses a liquid organic compound for fuel and includes a membrane-electrode assembly, a passage for allowing fuel or oxidant to flow, a fuel supply unit for supplying the fuel to the fuel cell and intermittently or periodically changing a rate of fuel supply, and a computation processor for measuring a signal of a voltage or an output of the fuel cell, computing the rate of the fuel supply and the signal, and correcting the rate of the fuel supply. In the fuel cell, the optimum fuel concentration can be easily controlled according to the output by periodically varying the fuel concentration from a reference fuel concentration, measuring a voltage or an output and a variation range of the voltage or the output, and then determining whether the reference fuel concentration is appropriate or not.
摘要:
A part of cell stack portions constituting a part of a fuel cell stack is used as a voltage detection portion, the size of a frequency component belonging to a predetermined specific frequency range is extracted from a voltage signal detected and the existence/absence of abnormality of a fuel cell system is diagnosed on the basis of the frequency component extracted.
摘要:
A solid-polymer electrolyte fuel cell comprising power generating units each being constituted by laminating an electrolyte membrane sandwiched between a pair of electrodes, and a pair of gas diffusion layers disposed on the electrodes, wherein laminated portions are formed in the peripheries of the power generating units by laminating a separator, a gasket, the power generating unit, a gasket, and a separator in this order. Covering parts each has a gas flow channel forming groove, a plurality of gas flow channel forming leg portions extend in the direction of the depth of the grooves, and supporting portions for uniting the gas flow channel forming leg portions, the covering parts being inserted into the grooves.
摘要:
A high-efficiency, compact and low-cost electric power storage air-conditioning system incorporates inside its air-conditioner an electric power storage unit including a battery which is electrically interconnected to a d.c. system of the air-conditioner. Charging of the battery is controlled to be executed only during a steady operation of the air-conditioner when its load is light. Since a d.c. voltage of the battery is used directly as a d.c. voltage to drive the air-conditioner, a high efficiency, minimized loss and economical operation conditioning system is achieved.
摘要:
During the charging of a secondary battery, the charging current is maintained, but the value of the current is changed for a short time, and the internal resistance of the battery is calculated from the voltage and the current before and after the changing of the charging current. The charging voltage is determined by adding an extra voltage equivalent to the voltage drop caused by the internal resistance to a designated voltage. Thus, it takes only a short time for stabilizing the voltage when the current is changed, because the charging current is not switched off completely. Therefore, the charging time can be shortened.
摘要:
A fuel cell is provided which can control an optimum fuel concentration according to an output without a sensor for measuring the fuel concentration. The fuel cell uses a liquid organic compound for fuel and includes a membrane-electrode assembly, a passage for allowing fuel or oxidant to flow, a fuel supply unit for supplying the fuel to the fuel cell and intermittently or periodically changing a rate of fuel supply, and a computation processor for measuring a signal of a voltage or an output of the fuel cell, computing the rate of the fuel supply and the signal, and correcting the rate of the fuel supply. In the fuel cell, the optimum fuel concentration can be easily controlled according to the output by periodically varying the fuel concentration from a reference fuel concentration, measuring a voltage or an output and a variation range of the voltage or the output, and then determining whether the reference fuel concentration is appropriate or not.
摘要:
A non-aqueous electrolyte secondary battery negative electrode having a negative electrode compound layer formed on a current collector, in which the negative electrode compound layer is constituted by a lower negative electrode compound layer and an upper negative electrode compound layer, the lower negative electrode compound layer is formed on the current collector, the upper negative electrode compound layer is formed on the lower negative electrode compound layer, the lower negative electrode compound layer includes a negative electrode active material, the upper negative electrode compound layer includes a conducting material and a binder, and a conducting aid and the binder are locally present on the surface side of the upper negative electrode compound layer.
摘要:
A fuel cell system having a fuel cell 1, a load 8 connected to the output line of the fuel cell 1 and a control apparatus 20 for controlling an amount of current flowing to the load 8, wherein a stopping state for stopping the fuel cell system includes a first stage stopping state for stopping while remaining hydrogen in the hydrogen line and a second stage stopping state for stopping substituting the hydrogen line with air, and transfers to the second stage stopping state by way of the first stage stopping state.