Abstract: A cell, a battery pack, and an electric vehicle are provided in the present disclosure. The cell includes a hermetical metal housing and at least two hermetical accommodating cavities, multiple electrode core assemblies, and an encapsulation film arranged in the metal housing. The electrode core assemblies are arranged along a first direction. The electrode core assemblies are connected in series. A length of each electrode core assembly extends along the first direction. The electrode core assembly includes an electrode core assembly body and a first electrode and a second electrode configured to lead out a current. The first electrode and the second electrode are respectively arranged on two sides of the electrode core assembly body along the first direction. At least one of the accommodating cavities is defined by the encapsulation film, and the electrode core assembly body is arranged in the accommodating cavity. A length of the cell extends along the first direction.

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: A battery pack and an electric vehicle are provided. The battery pack includes a battery sequence. The battery sequence includes multiple cells. A thickness of each cell extends along a first direction. The multiple cells are arranged in sequence along the first direction to form the battery sequence. At least one of the cells includes a metal shell and an electrode core packaged in the metal shell. An air pressure inside the metal shell is lower than an air pressure outside the metal shell. A gap is provided between at least two adjacent cells. A ratio of the gap to the thickness of the cell ranges from 0.001 to 0.15.

Abstract: A cell (100) is provided, which includes a metal housing (11) and multiple electrode core strings encapsulated in the metal housing (11). 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 (13) and multiple electrode core assemblies (12) arranged in a first direction and sequentially connected in series. The electrode core assemblies (12) are encapsulated in the encapsulation film (13). An air pressure between the metal housing (11) and the encapsulation film (13) is lower than an air pressure outside the metal housing (11).

Abstract: The present disclosure provides a battery pack housing, a battery pack, and an electric vehicle. The battery pack housing includes a housing body and at least one structural beam disposed in the housing body. The at least one structural beam divides the internal space of the housing body into a number of accommodation cavities. The housing body includes a top plate and a bottom plate arranged opposite to each other in a first direction, the first direction is a height direction of the battery pack housing, and the structural beam is located between and attached to the top plate and the bottom plate. The battery pack housing comprises a mounting part for connecting mounting portion for a fixed connection with an external load. The battery pack housing disclosed in the present disclosure has relatively high strength and stiffness as well as high space utilization.

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: This application provides a battery. The battery includes a housing and a plurality of accommodating cavities located in the housing. Two adjacent accommodating cavities are isolated by a partition plate, and an electrode core assembly comprising at least one electrode core is arranged in the accommodating cavity. A plurality of electrode core assemblies are sequentially arranged along a first direction and connected in series. A liquid guiding hole and a gas guiding hole are provided on the partition plate. The liquid guiding hole and the gas guiding hole are used to connect two adjacent accommodating cavities at both sides of the partition plate. The battery further includes a blocking mechanism that enables the liquid guiding hole to be in a settable state including an open state and a closed state.

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: The present disclosure provides a battery, including: a housing (10); a plurality of accommodating cavities (60) arranged in the housing; a partition plate (20) for separating two adjacent accommodating cavities (60); an electrode core assembly (30), received in one of the accommodating cavities (60), the electrode core assembly (30) including at least one electrode core, and a plurality of electrode core assemblies (30) being sequentially arranged in a first direction and connected in series; a plurality of sampling wires, electrically connected to the plurality of electrode core assemblies (30) correspondingly; and a wire harness channel, receiving the plurality of sampling wires. A battery module, a battery pack, and an electric vehicle are further provided.

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 battery pack includes at least one battery unit. The battery unit includes at least one battery string. The battery string includes one or at least two cells. A voltage difference across the battery string is less than or equal to 60 V. When the battery string includes at least two cells, the cells in the battery string are arranged sequentially along a first direction, and the first direction is parallel to a direction from the tail of the vehicle to the head of the vehicle.

Abstract: The present disclosure provides a system for efficiently preparing taurine, including: a solution storage unit configured to store a solution containing alkali metal taurinate, the solution being prepared by an ethylene oxide process; an ion exchange unit including at least one ion exchange resin column each configured to be activated by a first activation manner or a second activation manner independently, the first activation manner using sulfurous acid for activation to obtain alkali metal bisulfate and taurine, and the second activation manner using sulfuric acid for activation to obtain alkali metal sulfate and taurine; and a dispensing unit connected to the solution storage unit and the ion exchange unit respectively, and configured to adjust an amount of a solution conveyed from the solution storage unit to each of the at least one ion exchange resin column in the ion exchange unit.

Abstract: The present disclosure relates to a power battery pack, an energy storage device, an electric vehicle. The power battery pack includes an accommodating device and a plurality of cells, the accommodating device includes a plurality of accommodating regions, and each accommodating region has a first side edge and a second side edge and cells disposed between the first side edge and the second side edge. A distance between the first side edge and the second side edge along a first direction varies with different accommodating regions, each cell includes a first end and a second end, and a distance between the first end and the second end matches a distance between a corresponding first side edge and a corresponding second side edge.

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 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 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: 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: Provided is a catalyst for preparing high-purity taurine, and the catalyst is N,N-disubstituted aminoethanesulfonic acid and has a structure represented by Formula I, in which R1 and R2 are each independently selected from alkyl, alkenyl, alkynyl, alkoxy, benzyl, sulfhydryl, thioether group, aryl, heteroaryl, amino, amide, imide, cyano, aldehyde group, carbonyl, carboxyl, sulfonic acid group, or ester group. Also provided is a method for preparing high-purity taurine, which adds the catalyst in an ammonolysis step for preparing taurine, thereby having effects of high yield, inhibition of impurity production and a reduced amount of ammonia used, etc. The catalyst has advantages of low cost, stable physical properties, and easy separation from the product. The preparation method is simple to operate with easily available raw materials and high yield, and can be employed for industrial production. Moreover, the purity of the prepared taurine can be up to 98% or higher.

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.