Abstract: Provided is an optical lens formed by integrally molding a lens part that is an optically effective portion and has a light incidence/emission surface, and a lens edge part that is an optically ineffective portion and has a surface thereof except the light incidence/emission surface. The lens edge part includes a non-transparent region in part or all thereof, the lens part and the lens edge part include a thermoplastic resin, and the non-transparent region in the lens edge part contains a total of 0.1-5 mass % of one or more of a black dye and a black pigment.

Abstract: A vehicle (1) comprises a passenger compartment (2) in which a front seat (32F), a rear seat (32R), and a floor (33) between the front seat (32F) and the rear seat (38R) are provided. A first group (S1) of batteries (3) is mounted under the front seat (32F), a second group (S2) of the batteries (3) is mounted under the floor (33), and a third group (S3) of the batteries (3) is mounted under a rear seat (32R). By setting a height (h2) of the second group (S2) of the batteries (3) to be lower than respective heights (h1, h3) of the first and third groups (S1, S3) of the batteries (3), a battery mounting capacity of the vehicle (1) can be increased without affecting the comfort of the passenger compartment (2).

Abstract: A vehicle battery cooling structure is provided with a vehicle body, a battery unit and a cooling jacket. The vehicle body includes a floor panel and a vehicle body frame member. The battery unit is attached to the vehicle body frame member. The battery unit is arranged below the floor panel. The battery unit includes a battery case and a battery. The cooling jacket is attached to an upper surface of the battery case that houses the battery.

Abstract: A battery pack (1) for an electric vehicle is attached to the bottom surface of a vehicle floor from below so that the bottom part protrudes downward from the vehicle floor. A lower case (11) that constitutes part of a case (10) is die-cast from an aluminum alloy together with an upper case (12), and has a plurality of cooling fins (66) that extend in the vertical direction integrally formed in the front wall (51) and rear wall (52) thereof. These cooling fins (66) improve the heat-release characteristics and also serve as protectors for protecting the corners of the bottom part of the battery pack (1) in the event of an impact with a curb or the like. Cooling fins (66) are provided adjacent to both sides of a safety valve (16) so as to protect the safety valve (16) from impacts.

Abstract: A plurality of batteries (3) are disposed under a floor panel (16) of a vehicle (1). A first battery unit (38F) comprising a plurality of batteries (3) stacked in a vertical direction and a second battery unit (38R) comprising a plurality of batteries (3) stacked in a vehicle transverse direction are provided. By arranging a layout of the first battery unit (38F) and the second battery unit (38R) considering the location of an electric equipment (12, 13, 14) to which the batteries (3) supply power as well as the location of passenger seats (32F, 32R), the weight balance of the vehicle (1) in the front-aft direction can be optimized.

Abstract: A vehicle battery cooling structure is provided with a vehicle body, a battery unit and a cooling jacket. The vehicle body includes a floor panel and a vehicle body frame member. The battery unit is attached to the vehicle body frame member. The battery unit is arranged below the floor panel. The battery unit includes a battery case and a battery. The cooling jacket is attached to an upper surface of the battery case that houses the battery.

Abstract: A plurality of batteries (3) are disposed under a floor panel (16) of a vehicle (1). A first battery unit (38F) comprising a plurality of batteries (3) stacked in a vertical direction and a second battery unit (38R) comprising a plurality of batteries (3) stacked in a vehicle transverse direction are provided. By arranging a layout of the first battery unit (38F) and the second battery unit (38R) considering the location of an electric equipment (12, 13, 14) to which the batteries (3) supply power as well as the location of passenger seats (32F, 32R), the weight balance of the vehicle (1) in the front-aft direction can be optimized.

Abstract: A vehicle (1) comprises a passenger compartment (2) in which a front seat (32F), a rear seat (32R), and a floor (33) between the front seat (32F) and the rear seat (38R) are provided. A first group (S1) of batteries (3) is mounted under the front seat (32F), a second group (S2) of the batteries (3) is mounted under the floor (33), and a third group (S3) of the batteries (3) is mounted under a rear seat (32R). By setting a height (h2) of the second group (S2) of the batteries (3) to be lower than respective heights (h1, h3) of the first and third groups (S1, S3) of the batteries (3), a battery mounting capacity of the vehicle (1) can be increased without affecting the comfort of the passenger compartment (2).

Abstract: A first subassembly and a second subassembly each include four thin batteries connected in parallel with positive terminals of the individual thin batteries connected through a positive-side bus bar having a projecting portion and negative terminals of the individual thin batteries connected through a flat negative-side bus bar. The first subassembly is stacked on top of the second subassembly. The projecting portion of the positive-side bus bar at the second subassembly comes into contact with the negative-side bus bar of the first subassembly to achieve a serial connection between the first subassembly and the second subassembly.