Abstract: A battery pack includes a housing and multiple electrode core strings electrically connected to each other and disposed in the housing. The housing includes a housing body which includes sub-housings connected to each other. A sub-housing includes at least one reinforcing plate and a top plate and a bottom plate oppositely arranged in a first direction. The reinforcing plate is arranged between and is connected to the top plate and the bottom plate, and divides an interior of the corresponding sub-housing into multiple accommodating cavities. At least one accommodating cavity includes at least one electrode core string which includes electrode core assemblies connected and arranged in a second direction. The electrode core assemblies are disposed in an encapsulation film. A length of the electrode core string extends in the second direction. The housing includes a mounting component that is configured to be connected and fixed to an external load.

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 includes a housing, and at least one housing structural beam and multiple electrode core strings electrically connected to one another located in the housing. The housing includes a housing body, including a top plate and a bottom plate arranged opposite to each other in a first direction. The structural beam is located between the top plate and the bottom plate, the at least one structural beam is connected to the top plate and the bottom plate, and divides the interior of the housing into multiple accommodating cavities, and at least one electrode core string is provided in at least one accommodating cavity. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load. The electrode core string includes multiple electrode core assemblies sequentially disposed in a second direction and connected in series.

Abstract: The present disclosure relates to a battery tray and a power battery pack. The battery tray includes a tray body. The tray body includes a base plate and a side beam, and the side beam is disposed around the base plate and defines, together with the base plate, an accommodating space for battery cells. The base plate is formed therein with an air passage, and the base plate is provided with several inlet vents and at least one exhaust vent. The inlet vent is configured to introduce a flame, smoke or gas discharged from the battery cell into the air passage, and the exhaust vent is configured to discharge the flame, smoke or gas inside the air passage.

Abstract: A battery pack protection system and a vehicle are provided. The battery pack protection system includes a battery pack and a protective plate. The battery pack includes a tray. The tray includes a frame and a bottom plate. Battery modules are arranged on the bottom plate. The protective plate is arranged parallel to the bottom plate, and the protective plate is close to a side of the bottom plate. At least one sensor is arranged on the protective plate. The protective plate is detachably connected to the frame.

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, the cell has a first dimension, and the first dimension is a maximum spacing between two imaginary parallel planes sandwiching the cell; and at least one of the cells 600 mm?first dimension?2500 mm the at least one cell includes a casing and a core located inside the casing, a supporting region is formed on the casing, and the cell is connected to the support member through the supporting region and is supported by the support member. The support member is connected to the supporting region to support the cell.

Abstract: A cell includes a metal housing and multiple electrode core strings encapsulated in the metal housing. The multiple electrode core strings are arranged in a second direction and sequentially connected in series. Each of the electrode core strings includes an encapsulation film and multiple electrode core assemblies arranged in a first direction and sequentially connected in series. The electrode core assemblies are encapsulated in the encapsulation film. An air pressure between the metal housing and the encapsulation film is lower than an air pressure outside the metal housing.

Abstract: Provided are a battery tray and a power battery pack. The battery tray includes a tray body. The tray body includes a base plate, a side beam, and several partition plates, the side beam is disposed around the base plate and defines, together with the base plate, an accommodating space for battery cells. The partition plates are disposed on the base plate and divide the base plate into several regions for placing the battery cells. The partition plates and the side beam are each formed therein with an air passage and are in communication with each other. The partition plates are provided with several inlet vents, and the side beam is provided with at least one exhaust vent. The inlet vent is configured to introduce a flame, smoke or gas discharged from the battery cell into the air passage.

Abstract: A protective plate, including: a metal plate; a glass fiber reinforced resin layer, where the glass fiber reinforced resin layer includes a first glass fiber reinforced resin layer and a second glass fiber reinforced resin layer, the first glass fiber reinforced resin layer is located on a side of the metal plate, and the second glass fiber reinforced resin layer is located on a side of the metal plate facing away from the first glass fiber reinforced resin layer; and a carbon fiber reinforced resin layer, where the carbon fiber reinforced resin layer includes a first carbon fiber reinforced resin layer and a second carbon fiber reinforced resin layer, the first carbon fiber reinforced resin layer is located on a side of the first glass fiber reinforced resin layer, and the second carbon fiber reinforced resin layer is located on a side of the second glass fiber reinforced resin layer.

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.