Abstract: Provided is a battery module that includes: a battery cell laminate including a plurality of battery cells laminated together; a pair of plate-shaped members that are provided at both ends of the battery cell laminate in a direction of lamination; and a cushion material that is disposed between the plurality of battery cells and/or between the battery cell laminate and the plate-shaped member, the cushion material including a pair of first elastic members that are disposed on both outer sides in the direction of lamination of the battery cell laminate, a second elastic member that is disposed between the pair of first elastic members, and rigid members that are respectively disposed between the first elastic members and the second elastic member, and each of the first elastic members including an exterior body and a fluid that is filled in a space formed between the exterior body and the rigid member.

Abstract: A battery module includes a battery cell stack including a plurality of battery cells stacked therein, a pair of plate-shaped members provided on both ends of the battery cell stack in a stacking direction, and a buffer material provided between the plurality of battery cells and/or between the battery cell and the plate-shaped member. The buffer material includes a stretchable member filled with a fluid. The stretchable member includes a first region including a region that does not face the battery cell, and a second region connected to the first region and having a Young's modulus lower than that of the first region. When viewed from a top of the battery cell in the stacking direction, the outer peripheral portion of the stretchable member includes the first region at least at a portion of the outer peripheral portion.

Abstract: The battery module includes a plurality of battery cells, each battery cell being provided with an electrode stack accommodated in an exterior body and a tab lead that is connected to the electrode stack and extends from the exterior body, the battery module having a pair of end plates that retain the battery cells, the end plates being disposed at both ends of the electrode stacks in an electrode stacking direction, the tab lead being electrically connected to the tab lead of another of the battery cells that is adjacent, and the tab lead having a first extension that extends in a direction orthogonal to the electrode stacking direction and a second extension that extends in a direction in which the another of the battery cells is adjacent.

Abstract: Provided is a battery module including: a battery cell stack including a plurality of battery cells that are stacked; a pair of plate-shaped members provided at both ends of the battery cell stack in a stacking direction of the battery cell stack; and a cushioning member disposed between the plurality of battery cells and/or between the battery cell stack and the plate-shaped member. The cushioning member includes a pair of first elastic members and a plurality of second elastic members disposed between the pair of first elastic members. The first elastic members are disposed on both outer sides of the plurality of second elastic members in the stacking direction of the battery cell stack, and each of the plurality of second elastic members includes corrugated leaf springs that are stacked in the stacking direction of the battery cell stack.

Abstract: Provided is a battery module including: a battery cell stack including a plurality of battery cells that are stacked; a pair of plate-shaped members provided at both ends of the battery cell stack in a stacking direction of the battery cell stack; and a cushioning member disposed between the plurality of battery cells and/or between the battery cell stack and the plate-shaped member. The cushioning member includes a pair of first elastic members and a second elastic member disposed between the pair of first elastic members. The first elastic members are disposed on both outer sides of the second elastic member in the stacking direction of the battery cell stack, and the second elastic member includes corrugated leaf springs that are stacked in the stacking direction of the battery cell stack.

Abstract: Provided is a battery module including a battery cell stack in which a plurality of battery cells are stacked, a pair of plate-shaped members provided at both ends of the battery cell stack in a stacking direction, and a cushioning material disposed between the plurality of battery cells and/or between the battery cell stack and one of the plate-shaped members. The cushioning material includes a pair of first elastic members arranged on both outer sides in the stacking direction of the battery cell stack, and a second elastic member disposed between the pair of first elastic members. The second elastic member has a spring constant per unit area of 0.9 MPa/mm or more.

Abstract: Provided is a battery module including a battery cell stack in which a plurality of battery cells are stacked, a pair of plate-shaped members provided at both ends of the battery cell stack in a stacking direction, and a cushioning material disposed between the plurality of battery cells and/or between the battery cell stack and one of the plate-shaped members. The cushioning material includes a pair of first elastic members arranged on both outer sides in the stacking direction of the battery cell stack, a second elastic member disposed between the pair of first elastic members, and a rigid member disposed between one of the first elastic members and the second elastic member.

Abstract: A light-emitting device includes: a substrate having a groove extending in a first direction and a first surface and a second surface respectively arranged to sandwich the groove in a second direction; a first electrode provided on the first surface; a second electrode provided on the second surface; a graphite thin film provided on the first electrode and the second electrode and extending from the first electrode to the second electrode along the second direction in such a way as to be astride the groove; a third electrode provided on the graphite thin film in such a way as to be opposite the first electrode via the graphite thin film; and a fourth electrode provided on the graphite thin film in such a way as to be opposite the second electrode via the graphite thin film.

Abstract: A light-emitting device according to one embodiment includes: a substrate; a graphite thin film disposed on the substrate; and an electrode provided on a second surface of the graphite thin film on an edge portion of the graphite thin film, the second surface of the graphite thin film being opposite from a first surface of the graphite thin film, the first surface of the graphite thin film opposed to the substrate. A plurality of protrusions for supporting the graphite thin film is formed on a surface of the substrate opposed to the graphite thin film, at least over an entire region where the substrate and a portion of the graphite thin film other than the edge portion overlap each other when viewed along a thickness direction of the substrate.

Abstract: A light-emitting device includes: a substrate having a groove extending in a first direction and a first surface and a second surface respectively arranged to sandwich the groove in a second direction; a first electrode provided on the first surface; a second electrode provided on the second surface; a graphite thin film provided on the first electrode and the second electrode and extending from the first electrode to the second electrode along the second direction in such a way as to be astride the groove; a third electrode provided on the graphite thin film in such a way as to be opposite the first electrode via the graphite thin film; and a fourth electrode provided on the graphite thin film in such a way as to be opposite the second electrode via the graphite thin film.

Abstract: The stability of power generation efficiency against variation of fluid speed and direction can be improved. The disclosed rotor 1 for a wind or water power machine includes a hub 10, supported by a main shaft, and blades 20, each having a root end 21 connected to the hub. In a projection plane perpendicular to a rotational center axis O of the rotor, a leading edge 31 of the blade has leading edge bulge portions 36 and 37 protruding forward in the rotor rotational direction only at two different locations in the rotor radial direction.

Abstract: A light-emitting device according to one embodiment includes: a substrate; a graphite thin film disposed on the substrate; and an electrode provided on a second surface of the graphite thin film on an edge portion of the graphite thin film, the second surface of the graphite thin film being opposite from a first surface of the graphite thin film, the first surface of the graphite thin film opposed to the substrate. A plurality of protrusions for supporting the graphite thin film is formed on a surface of the substrate opposed to the graphite thin film, at least over an entire region where the substrate and a portion of the graphite thin film other than the edge portion overlap each other when viewed along a thickness direction of the substrate.

Abstract: A rotor for a wind/water power machine that can reduce fluid resistance. A rotor provided with a hub and blades. A projected plane perpendicular to a rotational center axis line of the rotor, front edges of the blades protrude, in at least one part, forward in the rotational direction of the rotor relative to a first line segment; front edge protruding tips thereof are disposed in positions separated outward in the radial direction of the rotor from the outer peripheral edge of the hub by a length 0.4 to 0.6 times the length of the blade; and portions of the front edges of the blades that extend from the ends on the inside in the radial direction of the rotor to the front edge protruding tips are curved or bent convexly, in at least one part, rearward in the rotational direction of the rotor relative to a second line segment.

Abstract: The stability of power generation efficiency against variation of fluid speed and direction can be improved. The disclosed rotor 1 for a wind or water power machine includes a hub 10, supported by a main shaft, and blades 20, each having a root end 21 connected to the hub. In a projection plane perpendicular to a rotational center axis O of the rotor, a leading edge 31 of the blade has leading edge bulge portions 36 and 37 protruding forward in the rotor rotational direction only at two different locations in the rotor radial direction.

Abstract: A communication device, a communication method and a communication system that enable an increase in channel capacity at cell edges of a plurality of cells. Data transmission is implemented by transmission stations, which are base stations of adjacent cells, by MIMO transmission. A relay station receives radio waves that are transmitted by both the transmission station and the transmission station, and acquires data transmitted by the transmission station and data transmitted by the transmission station. The relay station transmits data to reception stations in adjacent cells according to multi-user MIMO transmission. The data transmitted by the transmission station is received by the reception station via the relay station, and the data transmitted by the transmission station is received by the reception station via the relay station. The present invention can be used in cellular systems.

Abstract: A rotor for a wind/water power machine that can reduce fluid resistance. A rotor provided with a hub and blades. A projected plane perpendicular to a rotational center axis line of the rotor, front edges of the blades protrude, in at least one part, forward in the rotational direction of the rotor relative to a first line segment; front edge protruding tips thereof are disposed in positions separated outward in the radial direction of the rotor from the outer peripheral edge of the hub by a length 0.4 to 0.6 times the length of the blade; and portions of the front edges of the blades that extend from the ends on the inside in the radial direction of the rotor to the front edge protruding tips are curved or bent convexly, in at least one part, rearward in the rotational direction of the rotor relative to a second line segment.

Abstract: In cooperative sensing in which a plurality of cognitive radio apparatus collaboratively exchange sensing information on a status of frequency band usage as a secondary system, the sensing information is efficiently exchanged in the secondary system without influencing communication of the primary system. In a radio communication system according to this invention, a first radio communication device includes means for observing a surrounding radio communication environment, means for converting information obtained by the observation into a parameter used for radio communication, and means for performing transmission by using the parameter, and a second radio communication device includes means for receiving a signal transmitted from the first radio communication device and means for extracting, from the received signal, information on the surrounding radio communication environment that is observed on a transmission side.

Abstract: A communication device, a communication method and a communication system that enable an increase in channel capacity at cell edges of a plurality of cells. Data transmission is implemented by transmission stations, which are base stations of adjacent cells, by MIMO transmission. A relay station receives radio waves that are transmitted by both the transmission station and the transmission station, and acquires data transmitted by the transmission station and data transmitted by the transmission station. The relay station transmits data to reception stations in adjacent cells according to multi-user MIMO transmission. The data transmitted by the transmission station is received by the reception station via the relay station, and the data transmitted by the transmission station is received by the reception station via the relay station. The present invention can be used in cellular systems.