A power storage device includes: a power storage stack; paired end plates; paired side covers; an upper constraint member; and a lower constraint member. The power storage stack has: a first stack; a second stack; and an intermediate plate. The paired side covers each have an intermediate engagement portion that engages with the intermediate plate, and paired side end engagement portions that laterally engage with the paired end plates, respectively. The upper constraint member constrains the power storage stack, while permitting the intermediate plate to move relative to the upper constraint member in the one direction, and the lower constraint member constrains the power storage stack, while permitting the intermediate plate to move relative to the lower constraint member in the one direction.

A power storage device includes: a power storage stack; paired end plates; paired side covers; an upper constraint member; and a lower constraint member. The power storage stack has: a first stack; a second stack; and an intermediate plate. The paired side covers each have an intermediate engagement portion that engages with the intermediate plate, and paired side end engagement portions that laterally engage with the paired end plates, respectively. The upper constraint member constrains the power storage stack, while permitting the intermediate plate to move relative to the upper constraint member in the one direction, and the lower constraint member constrains the power storage stack, while permitting the intermediate plate to move relative to the lower constraint member in the one direction.

The application relates to a battery pack case and a battery pack. The battery pack case includes: a bottom plate and a side plate connected with the bottom plate, the bottom plate and the side plate surround to form an accommodating portion configured to accommodate a unit cell; the bottom plate is provided with a plurality of first grooves and a plurality of second grooves opening toward the accommodating portion, the plurality of first grooves are spaced apart from each other, the plurality of second grooves are spaced apart from each other, and the first grooves and the second grooves are arranged to cross each other. The bottom plate of the battery pack itself has good rigidity, is not prone to warp deformation, and can prevent the overflow of structural glue from contaminating the wiring harness or electrical components.

A battery housing for a high-voltage battery of a motor vehicle has a housing interior for receiving a multiplicity of battery modules. The housing interior is formed by a housing upper part and a housing lower part covering the housing upper part. The housing lower part is formed as a segmented housing base with at least two separate housing base segments, of which at least one housing base segment is designed to be removable for opening the battery housing and for allowing access to a part region of the housing interior covered by this housing base segment, and to that end is secured to the housing upper part in a non-destructively removable manner.

A battery housing for a high-voltage battery of a motor vehicle has a housing interior for receiving a multiplicity of battery modules. The housing interior is formed by a housing upper part and a housing lower part covering the housing upper part. The housing lower part is formed as a segmented housing base with at least two separate housing base segments, of which at least one housing base segment is designed to be removable for opening the battery housing and for allowing access to a part region of the housing interior covered by this housing base segment, and to that end is secured to the housing upper part in a non-destructively removable manner.

A battery module includes a housing, at least one cell stack inside the housing, a tightening assembly and a thermal conductive element. The tightening assembly includes first and second plugin members. The first plugin member has a first stopping portion and a first bolt portion connected with the first stopping portion, and the first bolt portion is tapered from the first stopping portion. The second plugin member has a second stopping portion and a second bolt portion connected with the second stopping portion, and the second bolt portion is tapered from the second stopping portion. The first and second plugin members are detachably inserted into the battery module from two opposing sides of the cell stack. The thermal conductive element tightens the cell stack to the housing.

A battery is provided. The battery includes: a housing and a plurality of accommodating cavities provided in the housing. Two adjacent accommodating cavities are separated by a partition plate. An electrode core assembly is arranged in each of the accommodating cavities. A plurality of electrode core assemblies are sequentially arranged along the first direction and connected in series. A spacer is arranged between the end of the electrode core assembly along the first direction and the partition plate.

A liquid-cooled motor vehicle traction battery module with a rigid and fluid-tight module housing in which a plurality of plate-like identical battery cells are accommodated. A plurality of identical deformable compression elements are provided between the battery cells and the battery cells are cooled by module-internal liquid cooling. Rigid cooling plates, which have cooling ducts for cooling liquid, are arranged between two mutually adjacent battery cells. Either a cooling plate or a compression element, against which the battery cells respectively directly bear, is in each case alternately arranged between two mutually adjacent battery cells.

An electrochemical cell comprising a first electrode separated from a second electrode by a shutdown separator. The first electrode can comprise a first current collector substrate having a first active material composite layered thereon. The second electrode can comprise a second current collector substrate parallel to the first current collector substrate. The second current collector substrate can have a second active material composite layered thereon. The first current collector substrate can have a first current collector tab extending from the first current collector substrate at a position along an axis parallel to a plane defined by the first current collector substrate. The second current collector substrate can have a second current collector tab extending from the second current collector substrate at a same position along the axis as the first current collector tab. A battery including the electrochemical cell and methods for manufacturing the battery are also described.

An electrochemical cell comprising a first electrode separated from a second electrode by a shutdown separator. The first electrode can comprise a first current collector substrate having a first active material composite layered thereon. The second electrode can comprise a second current collector substrate parallel to the first current collector substrate. The second current collector substrate can have a second active material composite layered thereon. The first current collector substrate can have a first current collector tab extending from the first current collector substrate at a position along an axis parallel to a plane defined by the first current collector substrate. The second current collector substrate can have a second current collector tab extending from the second current collector substrate at a same position along the axis as the first current collector tab. A battery including the electrochemical cell and methods for manufacturing the battery are also described.