Abstract: A single cell includes a battery body. The battery body has a length L, a width H, a thickness D, and a volume V. The length L of the battery body is greater than the width H, and the width H of the battery body is greater than the thickness D. L is about 400 mm to about 1500 mm, and a ratio H/V of the width H over the width H is about 0.0001 mm?2 to about 0.00015 mm?2.

Abstract: A cell for use in a power battery pack. The cell incudes a battery body having a length L, a width H, a thickness D, and a volume V. The length L is greater than the width H. The width H is greater than the thickness D. The battery body meets: 400 mm?L?2500 mm and 0.0005 mm?2?L/V?0.002 mm?2.

Abstract: A battery pack and a vehicle. The battery pack comprises a plurality of battery cells, a sealing cover, a tray, one or more insulating layers, and at least one connecting sheet, wherein the tray is coupled to the sealing cover to define an accommodating cavity; the plurality of battery cells are disposed in the accommodating cavity; the side of each battery cell facing away from the sealing cover is provided with a first explosion-proof valve; each insulating layer is disposed on the side of the battery cell facing away from the sealing cover; the connecting sheet is disposed on the insulating layer; the battery cells are electrically coupled by means of the connecting sheet; and each insulating layer is provided with a gas emission portion configured to enable the first explosion-proof valve in communication with an external environment.

Abstract: A battery pack is provided. The battery pack includes: a plurality of battery cells, each of which includes a shell, a battery core, and a plurality of terminal posts. An accommodating space is defined inside the shell. The battery core is disposed in the accommodating space. The shell at least includes a first surface and a second surface. The plurality of terminal posts are disposed on the battery core and extend out of the shell from the first surface. The battery pack further includes an electrical connecting member, which is disposed opposite each of two adjacent first surfaces and is electrically connected to each of two adjacent terminal posts, so as to conduct two adjacent battery cells. The battery pack further includes a heat transfer member, which can transfer heat from the electrical connecting member to the second surface.

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 protection bottom plate, a composite protection structure for a battery pack, and a vehicle. The battery protection bottom plate comprises an upper fiber reinforced resin layer, a metal plate, a fiber reinforced resin frame, and a lower fiber reinforced resin layer; the metal plate and the fiber reinforced resin frame are located between the upper fiber reinforced resin layer and the lower fiber reinforced resin layer; the metal plate is located inside the fiber reinforced resin frame; the top surface of the fiber reinforced resin frame is integrally connected to the upper fiber reinforced resin layer; the bottom surface of the fiber reinforced resin frame is integrally connected to the lower fiber reinforced resin layer.

Abstract: A battery protective bottom plate, a battery pack composite protective structure and a vehicle. The battery protective bottom plate comprises an upper fiber reinforced resin layer, a metal plate and a lower fiber reinforced resin layer, wherein the metal plate is located between the upper fiber reinforced resin layer and the lower fiber reinforced resin layer, and the following condition is satisfied: (I) 1 ? ? 2 * ( d 1 + d 2 + d 3 ) / d 2 ? 2 + ( ? 1 * d 1 + ? 3 * d 3 ) / ( d 1 + d 3 ) * ( ? 1 * d 1 + ? 3 * d 3 ) / ( d 1 + d 3 ) ? 2 ? 2 .

Abstract: The battery pack composite includes a battery pack and a battery protection bottom plate. The battery protection bottom plate includes a metal plate and is disposed below the battery pack. A buffer zone is disposed between the battery pack and the battery protection bottom plate, and the buffer zone and the metal plate satisfying: 0.018 ? ( d - 0.4 ) ? h ? * ? ? 0 . 0 ? 8 ? 5 , where d is a thickness in mm of the metal plate, ? is a tensile strength in MPa of the metal plate, ? is an elongation at break of the metal plate, and h is a height in mm of the buffer zone.

Abstract: The present disclosure discloses a protective plate for a battery pack, a battery pack and a vehicle. The protective plate includes a first fiber-resin composite layer, a metal layer and a buffering layer laminated in sequence.

Abstract: A side beam for a battery tray is provided. The battery tray has an accommodating groove for accommodating a battery core. The side beam includes a first body and a second body. The first body includes a main portion and a supporting portion, and the supporting portion is connected to the main portion and is configured to support the battery core. The second body is fixed to the first body. The second body and the first body are separated workpieces. At least a part of the second body is located on a side of the supporting portion away from the accommodating groove.

Abstract: A tray assembly includes a bottom plate that includes a main body portion and a raised edge portion, an expansion beam, and a first sealing member. The main body portion defines an accommodating cavity configured to accommodate a battery, and the raised edge portion is located on a peripheral of the main body portion and around the main body portion. The expansion beam is disposed on a first side of the raised edge portion and is configured to abut with the battery. The first sealing member includes a first portion disposed between the expansion beam and the raised edge portion.

Abstract: A cell for use in a power battery pack includes a cell body having a length L, a width H, a thickness D, and a volume V, wherein the length L is greater than the width H and the width H is greater than the thickness D. The cell body dimensions meet the following parameters: 600 mm?L?2500 mm and 0.0000065 mm?2?D/V?0.00002 mm?2.

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: 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: The present disclosure relates to the technical field of batteries, and provides a sampling device, a battery management system, and a vehicle. The sampling device includes multiple core function regions, an auxiliary function region, and a terminal connector. The multiple core function regions are configured to process information of a battery. The auxiliary function region has wiring arranged therein, and is configured to transmit a signal corresponding to the information. The multiple core function regions are cascaded through the wiring.

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: A battery pack and an electric vehicle are provided. The battery pack includes a tray and a heating component. The heating component is arranged within the tray, and the heating component includes multiple heating sections. In the heating component of the battery pack, heating powers of the multiple heating sections are different, and the multiple heating sections are respectively configured to heat multiple regions within the tray to balance an ambient temperature within the tray.

Abstract: A battery housing includes: a tray including a first channel; an explosion-proof valve disposed on the tray, the first channel being in communication with the explosion-proof valve; at least one module transverse beam disposed in the tray and including an accommodating portion, at least a part of a bottom of the accommodating portion being depressed downward to form a groove, and an opening disposed at at least one end of the groove along a length direction of the module transverse beam; and a liquid cooling plate connected to an outside of a bottom of the module transverse beam, at least one connection channel being formed between the liquid cooling plate and the module transverse beam, and the opening of the at least one module transverse beam being in communication with the first channel through the connection channel.

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: 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.