Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a cell array and two first reinforcing plates. The cell array includes a number of cells. Each of the cells is defined with a length L, a thickness D, and a height H between the length L and the thickness D. The number of cells are arranged along a thickness direction, and the cells are adhered to each other by a structural adhesive. The two first reinforcing plates are arranged opposite to each other and are respectively adhered to two surfaces of the cell array along the arrangement direction of the cells, and are configured to constrain relative positions between the cells.

Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a casing and a battery assembly arranged inside the casing. The battery assembly includes a battery unit and a reinforcing member. The battery unit includes N cells. At least some of the cells in the battery unit are connected by M reinforcing members. An outer surface of each of the cells includes a bottom surface, a top surface, and lateral surfaces. The bottom surface of the cell faces a bottom surface of the casing. The lateral surfaces include a first lateral surface and two opposite second lateral surfaces. The first lateral surface has a largest area among the lateral surfaces. An area of the first lateral surface is greater than an area of the bottom surface and the area of the first lateral surface is greater than an area of the top surface. The N cells are arranged in sequence. The second lateral surfaces of two adjacent cells are arranged opposite to each other.

Abstract: This application relates a battery pack and an electric vehicle. The battery pack includes a housing provided with a bottom surface and a top surface. A battery assembly is arranged in the housing. The battery assembly includes a structural reinforcing member and a cell sequence formed by connecting multiple cells. An outer surface of the cell includes a bottom surface, a top surface, first lateral surfaces, and two opposing second lateral surface. The bottom surface of the cell faces the bottom surface of the housing, and the top surface of the cell faces the top surface of the housing. The first lateral surface has a largest area. The multiple cells are arranged with second lateral surfaces thereof facing each other to form the cell sequence, and the structural reinforcing member is fixedly bonded with a first lateral surface of each cell in the cell sequence. The battery assembly abuts with the bottom surface of the housing to be supported in the housing.

Abstract: A tent center hub, having a frame that hinges with top rods of the tent, also containing a top seat wherein a solar energy conversion and storage mechanism is mounted; a bottom side of the top seat is provided with an annular press ring protruded away from the top seat; a top side of the frame is provided with an annular block ring protruded away from the frame; the top seat is removably connected to the top side of the frame; a cavity inside the top seat and a cavity inside the frame are in mutual communication with each other; the block ring is disposed within an enclosure of the press ring; a gap exists along a longitudinal direction between a bottom side of the press ring and the frame. The tent center hub can provide lighting inside the tent.

Abstract: An atomizer includes a liquid storage shell, an ultrasonic atomizing core, a liquid transporting cotton, a cooling block, and an end cap. The liquid storage shell surrounds the liquid storage cavity and the functional cavity which are isolated from each other, wherein the liquid storage cavity is used for storing liquid. The ultrasonic atomizing core is assembled in the functional cavity. The liquid transporting cotton is connected to the ultrasonic atomizing core and inserted into the liquid storage cavity, so as to transport the liquid in the liquid storage cavity to the ultrasonic atomizing core. The cooling block is attached on one side of the ultrasonic atomizing core. The cooling block has an atomizing hole and an oil return hole. The end cap is connected to one end of the liquid storage shell to seal the liquid storage cavity and the functional cavity.

Abstract: A substrate assembly, a display substrate and a display device are provided. The substrate assembly includes a cover plate and a functional substrate which are stacked. The functional substrate includes a plurality of first conductive terminals, and the cover plate includes a plurality of second conductive terminals. The plurality of the first conductive terminals are bonded to the plurality of the third conductive terminals through a plurality of connectors, and the plurality of the third conductive terminals are coupled to the plurality of the second conductive terminals through traces.

Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body; and a plurality of cells, directly arranged in the pack body. The cell extends from a first side of the pack body to a second side of the pack body, and the first side and the second side are disposed opposite to each other. The first side of the pack body is provided with a first side wall, the second side of the pack body is provided with a second side wall, an end of the cell is supported by the first side wall, and the other end of the cell is supported by the second side wall.

Abstract: A battery pack, a vehicle, and an energy storage device are provided. The battery pack includes a cell array and a support member, where the cell array includes a plurality of cells, each of the plurality of cells has a first size, and the first size is a maximum value of spacings between pairs of imaginary parallel planes that clamp the cell; at least one cell satisfies 600 mm?first size?2500 mm, and is supported by the support member; and a normal direction of two parallel planes corresponding to the first size is a direction Q, a battery placement area is defined in the battery pack, the cell array is located in the battery placement area, and each of the plurality of cells extends from one side of the battery placement area to another side of the battery placement area along the direction Q.

Abstract: A power battery pack includes: a pack body; a plurality of cells, disposed in the pack body; the cell having a length L0, a width H0, and a thickness D0, where at least one cell meets: L0>H0?D0, a length direction of the cell is arranged along a width direction of a vehicle body of the electric vehicle, and in the width direction of the electric vehicle, the length L0 of the cell and a size W of the vehicle body of the electric vehicle in the width direction meet: 46%?L0/W?76%; or at least one cell meets: L0>H0?D0, a length direction of the cell is arranged along a length direction of a vehicle body of the electric vehicle, and in the length direction of the electric vehicle, the length L0 of the cell and a size X of the vehicle body of the electric vehicle in the length direction meet: 40%?L0/W?76%.

Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a housing; and a plurality of cells, provided in the housing, wherein the sum V1 of the volumes of the plurality of cells and the volume V2 of the battery pack satisfy V1/V2?55%. The battery pack has a first direction and a second direction perpendicular to each other. A length direction of the cell is arranged along the first direction of the battery pack, and the plurality of cells are arranged along the second direction of the battery pack. The cell comprises a cell body, and the length of the cell body is 400-2500 mm.

Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body, where an accommodating space is defined in the pack body, the pack body is provided therein with at least one widthwise cross beam or lengthwise cross beam, the widthwise cross beam extends along a width direction of the power battery pack, the lengthwise cross beam extends along a length direction of the power battery pack, and the accommodating space is divided into a plurality of accommodating chambers by the at least one widthwise cross beam or lengthwise cross beam; and a plurality of cells, disposed in the pack body and directly arranged in the accommodating chambers, where at least one cell is arranged in each accommodating chamber to form a cell array.

Abstract: A cell, a power battery pack, and an electric vehicle are provided. The cell includes a cell body, and the cell body has a length L, a width H and a thickness D. The length L of the cell body is greater than the width H, the width H of the cell body is greater than the thickness D, the length L of the cell body is greater than 600 mm, and the length L and the width H of the cell body satisfy L/H=4-21.

Abstract: A tent center hub, having a frame that hinges with top rods of the tent, also containing a top seat wherein a solar energy conversion and storage mechanism is mounted; a bottom side of the top seat is provided with an annular press ring protruded away from the top seat; a top side of the frame is provided with an annular block ring protruded away from the frame; the top seat is removably connected to the top side of the frame; a cavity inside the top seat and a cavity inside the frame are in mutual communication with each other; the block ring is disposed within an enclosure of the press ring; a gap exists along a longitudinal direction between a bottom side of the press ring and the frame. The tent center hub can provide lighting inside the tent.

Abstract: The disclosure relates to the field of lithium-ion batteries, and discloses a polymer composite membrane and a method for preparing same. The disclosure further includes a lithium-ion battery for which the foregoing polymer composite membrane is used. The polymer composite membrane includes a porous base membrane and a heat-resistant fiber layer covering at least one side surface of the porous base membrane, where materials of the heat-resistant fiber layer contain a first polymeric material and a second polymeric material.

Abstract: A battery includes a case and a battery core assembly disposed in the case, the battery core assembly includes a plurality of battery core groups and an receiving space holding the plurality of battery core groups, the battery core groups are connected in series, and the battery core group includes at least one battery core; a separator plate is disposed between at least two adjacent battery core groups, the separator plate divides the receiving space into a plurality of receiving cavities, each of the receiving cavities holds one or more battery core groups , and a cavity wall of the receiving cavity comprised by a connection of the separator plate and a separation membrane; and the battery further includes a liquid injection channel and the liquid injection channel in a sealed state, the liquid injection channel is disposed on at least one of the separation membranes and the separator plates.

Abstract: The disclosure provides a polymer composite membrane, a method for preparing same, and a lithium-ion battery including same. The polymer composite membrane includes a polymer base membrane, where the polymer base membrane includes a first surface and a second surface disposed opposite to each other, and the polymer composite membrane further includes a first ceramic layer, a first heat-resistant fiber layer, and a first bonding layer disposed sequentially from inside out on the first surface of the polymer base membrane, where materials of the first heat-resistant fiber layer contain a first polymeric material and a second polymeric material.

Abstract: A battery pack, a vehicle, and an energy storage device. The battery pack includes a housing with a first direction and a second direction perpendicular to the first direction. The battery pack housing includes at least one rectangular cell accommodating unit is formed therein. The battery pack also includes a plurality of rectangular cells, and has a dimension greater than or equal to 600 mm along the first direction. The plurality of rectangular cells are arranged in the rectangular cell accommodating unit along the second direction. The rectangular cell has a thickness of D, length of L, and height of H. A length direction of at least one rectangular cell extends from one side of the rectangular cell accommodating unit to its other side along the first direction, and meets: L>H, L>D, 600 mm?L?2500 mm, 23?L/D?208.

Abstract: A multi-slug staged method for plugging a fractured formation includes: determining an average opening of fractures around a well as D, an average particle size of bridging particles for first-stage plugging as D1 that is slightly less than D, and average particle sizes of plugging particles for second to last-stage plugging as D2-Dn, where Dn is small enough to form a tight plugging layer; and sequentially injecting a plugging slurry only containing the bridging particles having the average particle size of D1, plugging slurries containing the plugging particles having the average particle sizes of D2-Dn-1, and a plugging slurry containing the plugging particles having the average particle size of Dn into the fractures to achieve the fractured formation plugging.

Abstract: A polymer composite membrane, a method for fabricating same, and a lithium-ion battery including same are provided. The polymer composite membrane includes a porous base membrane and a heat-resistant layer covering at least one side surface of the porous base membrane, the heat-resistant layer includes a plurality of heat-resistant sub-layers sequentially stacked, and pore-blocking temperatures of the heat-resistant sub-layers are sequentially increased from inside to outside; each of the heat-resistant sub-layers includes at least one of a first heat-resistant polymer material and a second heat-resistant polymer material, and each of the heat-resistant sub-layers is separately configured as a fiber network structure; the melting point of the first heat-resistant polymer material is not less than 200° C.; and the melting point of the second heat-resistant polymer material is not less than 100° C.