Abstract: A traction battery pack assembling method includes compressing a first cell stack within a first compression fixture, compressing a second cell stack within a second compression fixture, positioning the first cell stack and the first compression fixture next to the second cell stack and the second compression fixture, and inserting the first and second cell stacks into a cell-receiving opening of an enclosure structure by pushing the first and second cell stacks together into the cell-receiving opening.

Abstract: Manufacturing processes are disclosed for assembling traction battery packs that include battery systems, such as cell-to-pack battery systems. An exemplary assembly method includes inserting one or more cell stacks of the cell-to-pack battery system into a cell-compressing opening of an enclosure tray. The method may involve the use of slider plates that provide sliding surfaces that facilitate the insertion of the cell stacks into the cell compressing opening.

Abstract: A battery pack cell stack removal method includes compressing a cell stack with an enclosure structure when the cell stack is received within a cell-receiving opening of the enclosure structure, and pulling a cell stack removal strap to withdrawn the cell stack from the cell-receiving opening of the enclosure structure.

Abstract: A battery pack assembly method includes holding a cell stack with a compression machine. The compression machine engages a first load plate at a first end of the cell stack and a second load plate at an opposite, second end of the cell stack during the holding. The method further includes aligning the cell stack relative to an enclosure structure while the compression machine holds the cell stack, inserting the cell stack into a cell-receiving opening of an enclosure structure, and disengaging the compression machine from the first load plate and the second load plate.

Abstract: Standoff assemblies are disclosed for use within traction battery packs that include cell-to-pack battery systems. One or more standoff assemblies may be arranged between a cell-to-pack battery system and an enclosure cover of the traction battery pack. The standoff assemblies are configured to maintain a spaced relationship between the enclosure cover and certain components (e.g., battery cells, bus bars, etc.) of the cell-to-pack battery system.

Abstract: An approach for supporting a wax pattern during investment casting. The approach described herein forms a support structure to support the wax pattern during investment casting. The support structure has a capping structure with a geometry that can match a profile of a lower region of the wax pattern, and at least one support brace extending outward from the support capping structure. The support structure can be placed on a surface of the lower region. The support capping structure can form a defined envelope to enclose the lower region of the wax pattern. The support structure is connected to a base plate by the support brace(s). The capping structure and the support brace(s) secure the wax pattern to the base plate and distribute the load of the wax pattern to maximize strength while minimizing the risk of a discontinuity in the wax or shell that could affect the casting process.

Abstract: This disclosure details exemplary battery pack designs for use in electrified vehicles. An exemplary battery pack assembly process may include supporting one or more components, such as a heat exchanger plate, of the battery pack against deflection during the assembly process. Supporting the heat exchanger plate to keep the plate relatively flat during the battery pack assembly process improves the flow distribution of a thermal interface material (TIM), thereby achieving improved TIM coverage and improved heat transfer between battery cells and the heat exchanger plate of the battery pack.

Abstract: A battery assembly according to an exemplary aspect of the present disclosure includes, among other things, a first cell stack including a plurality of battery cells and a structural assembly including a first pocket sized and shaped to receive the first cell stack. The structural assembly is configured to assert a compressive load on the first cell stack and at least partially enclose the first cell stack.

Abstract: A data management system and associated data management method is disclosed herein. An exemplary method for managing data includes receiving data records timestamped with times spanned by a defined time interval; generating a data cube that includes data planes, wherein each data plane contains a set of data records timestamped with times spanned by the defined time interval; generating an index hypercube for the data cube, wherein dimensions of the index hypercube represent hash values of index keys defined for accessing the data cube; and generating an indexed data cube for storing in a database, wherein the indexed data cube includes the data cube and the index hypercube. The index hypercube includes index hypercube elements, where each index hypercube element represents a unique combination of hashed index key values that map to a data plane in the data cube.

Abstract: An exemplary battery assembly includes, among other things, an enclosure defining an interior, and a frame disposed within a wall of the enclosure. The frame includes at least one retention feature configured to hold a service panel in a position where the service panel covers an opening to the interior. An exemplary method includes, among other things, transitioning a service panel to an engaged position with at least one retention feature to secure the service panel in a position where the service panel covers an opening in an enclosure. The at least one retention feature is provided by a frame disposed within a wall of the enclosure.

Abstract: A battery pack includes an upper sidewall section of an enclosure, a lower sidewall section of the enclosure, and a fastener that moves to a secured position to secure the upper sidewall section to the lower sidewall section. The fastener is configured to be moved to the secured position from within an interior area of the enclosure. The battery pack further includes a gasket seal held between the upper sidewall section and the lower sidewall section at a position outside the fastener relative to an interior area of the enclosure.

Abstract: An approach for supporting a wax pattern during investment casting. The approach described herein forms a support structure to support the wax pattern during investment casting. The support structure has a capping structure with a geometry that can match a profile of a lower region of the wax pattern, and at least one support brace extending outward from the support capping structure. The support structure can be placed on a surface of the lower region. The support capping structure can form a defined envelope to enclose the lower region of the wax pattern. The support structure is connected to a base plate by the support brace(s). The capping structure and the support brace(s) secure the wax pattern to the base plate and distribute the load of the wax pattern to maximize strength while minimizing the risk of a discontinuity in the wax or shell that could affect the casting process.

Abstract: Methods, systems, and devices for leakage source detection are described. In some cases, a testing device may scan a first set of access lines of a memory die that have a first length and a second set of access lines of the memory die that have a second length different than the first length. The testing device may determine a first error rate associated with the first set of access lines and a second error rate associated with the second set of access lines. The testing device may categorize a performance of the memory die based on the first and second error rates. In some cases, the testing device may determine a third error rate associated with a type of error based on the first and second error rates and may categorize the performance of the memory die based on the third error rate.

Abstract: Exemplary battery pack designs for use in electrified vehicles may include an enclosure assembly that houses one or more battery internal components (e.g., battery arrays, battery electronic components, or both). A tear-away service panel may be positioned within a wall of the enclosure assembly. The service panel may be removed from the enclosure assembly to access one of the battery internal components requiring service and may be subsequently replaced with a replacement service panel. The replacement service panel may be part of a battery pack resealing kit.

Abstract: An electrochemical system having a thermal barrier layer is provided. The thermal barrier layer includes a polymer network having an inorganic portion and an organic portion such as silicone or a polysiloxane polymer network. The polymer network may further include filler component dispersed therein such as oxidized polyacrylonitrile milled fiber, Aerogel, hollow glass microspheres, and mica.

Abstract: The present invention is directed to methods for filling a container wherein the filled container has no headspace. The present invention is further directed to methods for stabilizing an aqueous drug substance solution by filling a container with the aqueous drug substance solution wherein the filled container has no headspace. The present invention is further directed to methods for detecting headspace in a container.

Abstract: A traction battery pack assembly includes, among other things, a foam section of a battery pack enclosure. The foam section provides a recessed area that at least partially receives a traction battery array. A substructure assembly is partially disposed within the foam section. An attachment point is provided by the substructure assembly. The attachment point is outside the foam section.

Abstract: A battery array frame according to an exemplary aspect of the present disclosure includes, among other things, a frame body, and a thermal fin including a body embedded in the frame body and a leg that extends outside of the frame body. The thermal fin is flexible between a first position in which the leg is spaced farther from a surface of the frame body and a second position in which the leg is spaced closer to the surface of the frame body.

Abstract: A traction battery pack assembly includes, among other things, first and second pieces of an enclosure having an interior area. An attachment rim is disposed at a periphery of the first piece. The attachment rim has a stand-off that includes a platform portion and turned flange. The platform portion extends outward from the interior area in a first direction. The platform portion provides an aperture. The turned flange extends away from the platform portion in a second direction and terminates at an end face. The second direction is transverse to the first direction. The aperture is configured to receive a fastener that clamps the end face against the second piece.

Abstract: An approach for supporting a wax pattern during investment casting. The approach described herein forms a support structure to support the wax pattern during investment casting. The support structure has a capping structure with a geometry that can match a profile of a lower region of the wax pattern, and at least one support brace extending outward from the support capping structure. The support structure can be placed on a surface of the lower region. The support capping structure can form a defined envelope to enclose the lower region of the wax pattern. The support structure is connected to a base plate by the support brace(s). The capping structure and the support brace(s) secure the wax pattern to the base plate and distribute the load of the wax pattern to maximize strength while minimizing the risk of a discontinuity in the wax or shell that could affect the casting process.