摘要:
A power supply apparatus having a fuel cell and a rechargeable battery and a method of controlling power supplied by the apparatus to a load. A DC-DC converter is selectively supplied with power from the fuel cell or from the fuel cell and the battery based on an amount of a load current. The battery is recharged from an output of the DC-DC converter to increase an overall efficiency of the DC-DC converter and the fuel cell when the load current is low. The battery supplements power input to the DC-DC converter when the load current is high or when an output voltage of the fuel cell becomes unstable.
摘要:
A liquid fuel cartridge and a direct liquid feed fuel cell system having the liquid fuel cartridge. The direct liquid feed fuel cell system includes: a housing having a cartridge inserting groove and a longitudinal opening in the cartridge inserting groove; a fuel cell located in the housing and composed of cathode and anode electrodes and an electrolyte membrane; a liquid fuel cartridge that contains a liquid fuel, inserted into the cartridge inserting groove, to supply the liquid fuel to the anodes; and a fuel transport unit to transport the liquid fuel from the liquid fuel cartridge to the anodes, wherein the liquid fuel is supplied to the fuel transport unit when the liquid fuel cartridge is rotated in a first direction and the supply of the liquid fuel is disconnected when the liquid fuel cartridge is rotated in an opposite direction.
摘要:
A fuel cell for a microcapsule-type robot uses alcohol or an aqueous alcohol solution as a fuel and was hydrogen peroxide or an aqueous hydrogen peroxide solution as an oxidizing agent. A microcapsule-type robot also uses the fuel cell. The fuel cell may be used in a microcapsule-type endoscope and have an operating time that is long enough to diagnose human organs. The fuel cell may comprise hydrogen peroxide as an oxidizing agent instead of air or oxygen such that the fuel cell can operate inside the human body. Thus, an oxygen source, which cannot be obtained in a human body, can be easily supplied to the fuel cell, and the fuel cell has higher performance than a fuel cell in which air is used as an oxidizing agent.
摘要:
A water recovery system of a direct liquid feed fuel cell and a direct liquid feed fuel cell having the water recovery system. The water recovery system in which water produced at a cathode electrode of a membrane electrode assembly (MEA) is recovered to supply to an anode electrode, the water recovery system includes: a first member located on the cathode electrode and a first supporting plate that supports the first member; and a second member located on the anode electrode and a second supporting plate that supports the second member, wherein the first member and the second member are connected to each other through a slit formed in an electrolyte membrane of the MEA. The direct liquid feed fuel cell having the water recovery system can be used, for example, in a direct methanol fuel cell (DMFC).
摘要:
A bipolar plate and a direct liquid feed fuel cell stack are provided. The bipolar plate includes a manifold that is coupled with the fuel/oxidant path holes and a plurality of flow channels that are coupled with the manifold. The flow channels are divided into a plurality of groups, where the flow channel of each group forms a serpentine flow path and a length of each flow channel is substantially the same.
摘要:
A direct liquid feed fuel cell stack includes a first end plate and a second end plate facing each other, and a plurality of unit cell modules mounted between the first end plate and the second end plate, wherein an electrical circuit that contacts terminals of the unit cell modules is formed on an inner surface of the first end plate.
摘要:
A method for quantifying plant resource using a GIS is disclosed, in which it is possible to more efficiently quantify plant resources with less manpower, time and cost using a GIS when quantifying plant resources in a certain region. In the method, a sample group is extracted from mother groups having a plurality of distribution maps having a plurality of environment factors including IMI as attribute data, the IMI being obtained through a GIS preprocess. A relative model formula is obtained between a plant resource real measurement value of the sample group and an environment factor real measurement value and is related with the distribution map of the mother group, and the distribution maps are overlapped for thereby forming a plant resource estimation distribution map of the mother group.
摘要:
A direct liquid feed fuel cell includes a membrane electrode assembly (MEA) including an anode electrode and a cathode electrode respectively disposed on either side of an electrolyte membrane. A conductive anode plate and a conductive cathode plate which respectively face the anode electrode and the cathode electrode, and have flow channels therein. Stripe-shaped hydrophilic members are formed on the cathode electrode, cross the flow channels of the conductive cathode plate, and transfer water from the flow channels to the conductive cathode plate. The conductive cathode plate is hydrophilic.
摘要:
A bipolar plate for fuel cells includes a plurality of flow paths in which fuel flows. The flow paths include a first flow path formed by a plurality of flow channels and a second flow path formed by a plurality of islands. A direct liquid fuel cell stack comprises the bipolar plate.
摘要:
Provided may be a liquid fuel mixing apparatus and a direct liquid feed fuel cell having the same. The liquid fuel mixing apparatus comprises a liquid fuel tank and a water tank, and a liquid fuel mixer that mixes a liquid fuel supplied from the liquid fuel tank and liquid supplied from water tank, the liquid fuel mixer located to contact the liquid fuel in the liquid fuel. The liquid fuel mixer comprises, a water channel through which the liquid supplied from the water tank may flow, and a liquid fuel permeable membrane, which allows the liquid fuel to penetrate therethrough to the water channel but does not allow water in the water channel to penetrate therethrough to the liquid fuel tank.