摘要:
A method of manufacturing a fuel cell stack is provided. The method provides forming an inspectable preassembly of multiple fuel cell assemblies that may be termed a pseudostack. Each fuel cell in the pseudostack has permanent electrical interconnections and sealing connections on only one of the two electrodes, namely an anode layer or a cathode layer. For example, an anode interconnect may be firmly attached to the anode layer by means of a bonding agent and a sealing agent used to seal passages on the anode layer of the fuel cell. Alternatively, seals and permanent electrical connections may be made on the cathode layer of the fuel cell, and not on the anode layer.
摘要:
A fuel cell assembly comprising at least one metallic component, at least one ceramic component and a structure disposed between the metallic component and the ceramic component. The structure is configured to have a lower stiffness compared to at least one of the metallic component and the ceramic component, to accommodate a difference in strain between the metallic component and the ceramic component of the fuel cell assembly.
摘要:
A method of manufacturing a fuel cell stack is provided. The method provides forming an inspectable preassembly of multiple fuel cell assemblies that may be termed a pseudostack. Each fuel cell in the pseudostack has permanent electrical interconnections and sealing connections on only one of the two electrodes, namely an anode layer or a cathode layer. For example, an anode interconnect may be firmly attached to the anode layer by means of a bonding agent and a sealing agent used to seal passages on the anode layer of the fuel cell. Alternatively, seals and permanent electrical connections may be made on the cathode layer of the fuel cell, and not on the anode layer.
摘要:
A fuel cell assembly comprising at least one metallic component, at least one ceramic component and a structure disposed between the metallic component and the ceramic component. The structure is configured to have a lower stiffness compared to at least one of the metallic component and the ceramic component, to accommodate a difference in strain between the metallic component and the ceramic component of the fuel cell assembly.
摘要:
A fuel cell assembly comprises a separating structure configured for separating a first reactant and a second reactant wherein the separating structure has an opening therein. The fuel cell assembly further comprises a fuel cell comprising a first electrode, a second electrode, and an electrolyte interposed between the first and second electrodes, and a passage configured to introduce the second reactant to the second electrode. The electrolyte is bonded to the separating structure with the first electrode being situated within the opening, and the second electrode being situated within the passage.
摘要:
In certain embodiments, a device is provided including a substrate and a plurality of supports over the substrate. The device may further include a mechanical layer having a movable portion and a stationary portion. The stationary portion may disposed over the supports. In certain embodiments, the device further includes a reflective surface positioned over the substrate and mechanically coupled to the movable portion. The device of certain embodiments further includes at least one movable stop element displaced from and mechanically coupled to the movable portion. In certain embodiments, the at least a portion of the stop element may be positioned over the stationary portion.
摘要:
An interferometric modulating device is provided with a thermal expansion balancing layer on a side of the movable flexible layer opposite the movable reflector such that when temperature changes the distance between the movable reflector and the optical stack does not change significantly, thereby leading to stable color. Additionally, an interferometric modulating device is provided with a stiffening layer between the movable flexible layer and the movable reflector and at least one hollow void exists on the surface where the movable reflector and the stiffening layer contact each other so that the movable reflector is more rigid to bending, thereby reducing the temperature sensitivity of the movable reflector.
摘要:
A lensless camera may include an array of MEMS-based light-modulating devices. A camera controller may control the MEMS-based light-modulating devices to transmit visible light through, or substantially prevent the transmission of visible light through, predetermined areas of the array. The array may be controlled in response to input from a user and/or in response to the location of a detected subject. The viewing direction of a lensless camera having such an array can be rapidly changed by changing the transmittance of different regions of the array.
摘要:
Some embodiments comprise at least one array that includes microelectromechanical systems (“MEMS”)-based light-modulating devices. Elements of the array(s) may be configured to absorb and/or reflect light when in a first configuration and to transmit light when in a second position. Such an array may be controlled to function as a camera aperture and/or as a camera shutter. For example, a controller may cause the array to function as a shutter by causing the MEMS devices to open for a predetermined period of time. The predetermined period of time may be based, at least in part, on input received from a user, the intensity of ambient light, the intensity of a flash, the size of the camera aperture, etc. Some embodiments provide a variable aperture device that does not add significant thickness or cost to a camera module. Such embodiments may enable a camera to function well in both bright and dark light, to control depth of field, etc.
摘要:
A camera flash system may include a light source and an array that includes MEMS-based light-modulating devices disposed in front the light source. The camera flash system may control the array to transmit light through, or substantially prevent the transmission of light through, predetermined areas of the array. In some embodiments, the array may be controlled in response to input from a user, in response to detected ambient light conditions and/or in response to the proximity of a detected subject or other detected features. For example, the camera flash system may control the array to substantially prevent the transmission of light through an area of the array that is between the light source and the eyes of a detected subject.