摘要:
A measurement device for measuring voltages along a linear array of voltage sources, such as a fuel cell stack, includes at least one movable contact or non-contact voltage probe that measures a voltage of an array element.
摘要:
Electrode configurations for electric-field enhanced performance in catalysis and solid-state devices involving gases are provided. According to an embodiment, electric-field electrodes can be incorporated in devices such as gas sensors and fuel cells to shape an electric field provided with respect to sensing electrodes for the gas sensors and surfaces of the fuel cells. The shaped electric fields can alter surface dynamics, system thermodynamics, reaction kinetics, and adsorption/desorption processes. In one embodiment, ring-shaped electric-field electrodes can be provided around sensing electrodes of a planar gas sensor.
摘要:
A controller for controlling a flow cell battery system is provided. The controller operates the flow cell battery system in a plurality of states including a plating state, a charging state and a discharge state.
摘要:
A controller for controlling a flow cell battery system is provided. The controller operates the flow cell battery system in a plurality of states including a plating state, a charging state and a discharge state.
摘要:
The invention relates to an integrated sensor, including terminals (1, 2) for connection to an electric generator, said terminals being connected to a metal measuring line (4, 5) in which a current proportional to the voltage or current of the generator to be measured flows, and magnetoresistors (31, 32, 33, 34). The metal measuring line includes elongate and parallel sections (4, 5) in which the current flows in opposite directions, said sections being connected to a portion (3) for closing the metal measuring line (3, 4, 5), which is arranged on a galvanic isolation layer (8) that is in turn arranged on an integrated circuit portion including the magnetoresistors (31, 32, 33, 34), each of which have a sensitive portion that is vertically adjacent to one of the elongate sections (4, 5). The sensor can be integrated into a diagnostic system.
摘要:
A hydrogen generator includes a housing, a pellet strip with a plurality of pellets disposed on a flexible carrier, the pellets including a hydrogen containing material that will release hydrogen gas when heated. A feed system feeds the pellet strip to sequentially position one or more pellets in proximity to a heater that heats the pellets to release hydrogen gas. The pellet strip can be folded or wound on a reel, stored in a compartment in the hydrogen generator or in a user-replaceable container. The hydrogen generator can be part of a fuel cell system that includes the hydrogen generator and a fuel cell battery.
摘要:
Disclosed herein are systems and methods of diagnosing in situ the health of a fuel cell stack while it is in operation in a vehicle. One such system of diagnosing in situ the health of a fuel cell stack while it is in operation in a vehicle comprises at least one gas sensor configured to detect a gas in exhaust from the fuel cell stack and a control unit configured to receive data from the gas sensor. The control unit has baseline data particular to a catalyst of the fuel cell stack and is programmed to determine information from the baseline data and the data from the gas sensor, the information providing a condition of the fuel cell stack. A display unit is configured to display an indication of the condition.
摘要:
A controller for controlling a flow cell battery system is provided. The controller operates the flow cell battery system in a plurality of states including a plating state, a charging state and a discharge state.
摘要:
A controller for controlling a flow cell battery system is provided. The controller operates the flow cell battery system in a plurality of states including a plating state, a charging state and a discharge state.
摘要:
A fuel cell system includes: a fuel cell; a secondary cell that receives and stores surplus power by which output of the fuel cell is greater than power demanded of the system if the output is so, and that compensates for shortfall by which the output of the fuel cell is less than the power demanded of the system if the output is so; a voltage measurement portion that measures voltage of the fuel cell; a current measurement portion that measures current of the fuel cell; and a control portion that performs a control such that the voltage of the fuel cell does not exceed or equal a pre-set high-potential avoidance voltage. If a current-voltage characteristic of the fuel cell declines by at least a pre-determined amount from an early-period level, the control portion re-sets the high-potential avoidance voltage to a value that is smaller than an early-period set value.