摘要:
The present invention provides a catalyst-coated membrane and a membrane-electrode assembly that can easily and surely achieve a polymer electrolyte fuel cell having excellent durability, in which the decomposition/degradation of a polymer electrolyte membrane can be suppressed, and a decrease in initial characteristics can be prevented sufficiently for a long period of time even when the polymer electrolyte fuel cell is frequently started and stopped. In the catalyst-coated membrane that includes an anode catalyst layer, a cathode catalyst layer, and a hydrogen ion conductive polymer electrolyte membrane interposed between the anode catalyst layer and the cathode catalyst layer, a peripheral area of at least one of the anode catalyst layer and the cathode catalyst layer is provided with a decrease portion in which the mass of the electrode catalyst per unit area of the catalyst layer decreases from the inner side toward the outer side.
摘要:
A technique is provided which protects copyrights of contents and at the same time enhances the user's convenience.When a user makes a request of the use or duplication of map data stored in a storage device via an operating unit, a control unit first causes an encryption engine to read out a content key from the storage device. Then it causes a license generator to encrypt the read-out content key with a device ID stored in a device ID storage. License data containing the content key thus generated are transferred to the storage device via the encryption engine and are overwritten and replaced by license data recorded in the storage device.
摘要:
A membrane-membrane reinforcing member assembly (1) of the present invention includes: a polymer electrolyte membrane (10) having a pair of first main surface (F1) and second main surface (F2) which face each other and each has a substantially rectangular shape; a pair of first membrane reinforcing members 22 and 24 which are disposed on portions, respectively, extending along a pair of opposed sides of four sides of the first main surface (F1), each has a main surface smaller than the first main surface (F1) and each has a film shape; and a pair of second membrane reinforcing members (26) and (28) which are disposed on portions, respectively, extending along a pair of opposed sides of four sides of the second main surface (F2), each has a main surface smaller than the second main surface (F2) and each has a film shape, wherein the pair of first membrane reinforcing members (22) and (24) and the pair of second membrane reinforcing members (26) and (28) are disposed so as to extend along four sides as a whole, respectively, of the polymer electrolyte membrane (10) and so as to sandwich four corners of the polymer electrolyte membrane (10).
摘要:
A membrane-electrode assembly (1) of the present invention comprises: a quadrate polymer electrolyte membrane (2); a pair of catalyst layers provided to sandwich the polymer electrolyte membrane except for a peripheral portion of the polymer electrolyte membrane; and a pair of gas diffusion layers (3) provided respectively on the pair of the catalyst layers, the membrane-electrode assembly (1) being incorporated into a fuel cell by being sandwiched between a pair of separators on each of which a reaction gas passage (A) or (C) is concavely formed in a gas diffusion layer contacting region of an inner surface thereof, the gas diffusion layer contacting region being a region contacting the gas diffusion layer, wherein: each of the reaction gas passages (A) and (C) in the gas diffusion layer contacting region is formed to have a serpentine shape which extends from upstream to downstream in a direction from a first side (2a) of the polymer electrolyte membrane 1 to a third side (2c) facing the first side along a second side (2b) adjacent to the first side while turning in directions along the first side; reinforced portions (4) for reinforcing the polymer electrolyte membrane are formed at a portion corresponding to the second side and a portion corresponding to a fourth side (2d) facing the second side in the peripheral portion of the polymer electrolyte membrane 2; and the reinforced portion (4) is not formed at a portion corresponding to at least the third side (2c) in the peripheral portion of the polymer electrolyte membrane (2).
摘要:
A fuel cell is disclosed having a separator that can minimize damage to a membrane electrode assembly. The separator advantageously has a groove therein approximately positioned over an outer edge of an electrode of the fuel cell to reduce any pressure between the separator and the outer edge of the electrode upon assembly and during use thereafter.
摘要:
[problem] New functions including fade-in and fade-out are provided in view of particularity of three-dimensional image display. [means to solve the problem] During a fade-out process, a left-eye image (L image) is moved in a left direction while it is gradually reduced in size, and a right-eye image (R image) is moved in a right direction while it is gradually reduced in size. Thus, parallax between the L image and the R image is gradually increased. When the image is viewed through a 3D filter, it appears as if a subject to be displayed on a still image were gradually drawn in a depth direction. Furthermore, this effect can be magnified when the sizes of the L image and the R image are gradually reduced.
摘要:
A data delivery terminal (12) is connected to a delivery server (18) via a radio base station (14) and a cellular phone network (16). A user can input reservation information of content data (music data) by operating an operation panel on the data delivery terminal (12). For example, the reservation information includes a date and time of download and a title name of music data, connection information (DAP-TEL) to an access point (DAP) for a download server (20) and etc. When such the reservation information is input, the data delivery terminal (12) dials the access point in accordance with the date and time included in the reservation information. When a connection state is established, desired music data is transmitted from the download server (20) such that the music data is downloaded to a memory card attached to the data delivery terminal (12).
摘要:
The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell includes a hydrogen ion conductive polymer electrolyte membrane; and a pair of electrodes having catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers, in which the catalyst layer of at least one of the electrodes comprises carbon particles supporting a noble metal catalyst, and the carbon particles include at least two kinds of carbon particles adsorbing a hydrogen ion conductive polymer electrolyte in mutually different dispersed states.
摘要:
A data delivery server (18) includes a download server (24), and a mobile telephone (12) is connected to the download server (24) via an Internet (20), a mobile telephone network (16), and a radio base station (14). The mobile telephone (12) is capable of downloading desired music data from the data delivery server (18). More specifically, a menu server (22) determines one access point where traffic is not congested based on a connection situation to the access point of the download server (24), and transmits to the mobile telephone (12) download information including a content ID which recognizes a determined access point and the desired music data. Therefore, the mobile telephone (12) is capable of downloading the music data by connecting it to the download server (24) from the access point where traffic is not congested based on the download information. Thus, a required time for downloading cannot be longer than necessary.
摘要:
In a cellular phone, a controller stores content data received from a distribution server into a memory. When the content data is to be transmitted to a memory card, a random number key generator generates a license key, and an encryption processing unit encrypts the content data using the license key. The controller transmits encrypted content data to a memory card via a memory card interface. Then, the controller deletes the content data stored in the memory. As a result, distribution of content data that must be deleted when transferring to another apparatus can be facilitated while protecting the copyright.