Abstract: Provided is a battery pack in which cells and a separation member that separates the cells are stacked, wherein the separation member has a heat insulating portion, a compression modulus of the heat insulating portion in stacking direction is 0.5 to 10 MPa, and the separation member has a noncontact region in which the heat insulating portion is not in contact with the cells. A battery pack in which contact between adjacent cells due to expansion of cells is prevented and the safety of the battery pack can be maintained can be provided.

Abstract: A partition member has a thickness direction and a surface direction orthogonal to the thickness direction and partitions between unit batteries constituting an assembled battery in the thickness direction. The partition member comprises an exterior body including at least sealant resin layers and base material layers, and a liquid accommodated in the exterior body. The exterior body has a sealing portion in which the sealant resin layers are overlapped and joined in a region including an outer edge thereof. A width W (mm) of the sealing portion, a circumferential length L (mm) of the sealing portion, an average interval D (mm) between the two base material layers facing each other in the sealing portion, and a weight A (g) of the liquid satisfy Equation 1 below. (L×D)/(W×A)?10.

Abstract: Provided is an organic photovoltaic module in which the initial performance of an organic photovoltaic device can be maintained even after squeegeeing in wet pasting construction, of which an end does not peel off in finishing working, and which has favorable design quality. The organic photovoltaic module includes, in turn, a first gas barrier layer, a first sealing layer, and the organic photovoltaic device, in which the first sealing layer has a storage modulus of 5×106 Pa or more and 1×108 Pa or less at 25° C. and a frequency of 10 Hz.

Abstract: The present invention can provide a protective sheet, a protective sheet preventing curl generation in a laminated article formed by using the same and having excellent appearance, and a solar cell module formed by using this protective sheet. A protective sheet includes a weather-resistant film A, an adhesive layer 1, a film B, an adhesive layer 2, a film C in the stated order, the film C having a thickness of 60 ?m or more, in which the width WA of the weather-resistant film, the width WB of the film B, and the width WC of the film C have a relationship of WA>WC>WB.

Abstract: The present invention achieves a solar cell protective material containing a moisture-resistant film with a moisture vapor permeability of less than 0.1 g/m2/day, but not decreasing the moisture resistance for a long term, preventing delamination, and having excellent flexibility and excellent moisture resistance. The present invention provides a solar cell protective material having an effect in preventing the performance degradation of a solar cell and improving the durability of a solar cell. The solar cell protective material includes a fluorine-based resin film; a pressure sensitive adhesive layer; and a moisture-resistant film having a base material and an inorganic layer on at least one side of the base material, the moisture-resistant film having a moisture vapor permeability of less than 0.

Abstract: A moisture proof laminated film is provided that is excellent in transparency, has considerably high moisture proofness, and is suppressed in generation of bubbles between moisture proof films, even when plural moisture proof films are used. A moisture proof laminated film (1) containing a moisture proof film A (2) having a water vapor transmission rate (WTR (A)) at 40° C. and 90% RH of 1.0 (g/m2·day) or less and a moisture proof film B (3) containing a substrate (4) having on one surface thereof an inorganic layer (5) and having a water vapor transmission rate (WTR (B)) at 40° C. and 90% RH of 10% or less of the water vapor transmission rate (WTR (A)), which are laminated through an adhesive layer (7).

Abstract: The present invention relates to a moisture-proof laminated film having, on the substrate thereof, an inorganic thin film layer and having, on the inorganic thin film layer, a plastic film via a polyurethane adhesive satisfying the following requirement (1), or the following requirements (1) and (2). The moisture-proof laminated film keeps excellent moisture-proofness and interlayer strength even after exposed to high temperature condition. (1) ?0.1?E21?+0.5. (2) ?0.3?E23?+0.3. (In the above formulae, E21 indicates (E2?E1)/E2, and E23 indicates (E2?E3)/E2. E1, E2 and E3 each mean the tensile storage elastic modulus of the adhesive under specific conditions.