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: An electricity storage module includes a plurality of electricity storage cells, a plurality of resin frames, and a bus bar module. Each of the electricity storage cells includes a pair of external terminals. The bus bar module includes a plurality of bus bars and a bus bar case. The resin frame includes a retaining portion configured to retain the bus bar case. The bus bar case includes a retained portion that is configured to engage with the retaining portion, and a biasing portion that is configured to bias the bus bar toward a side of the retained portion, in a state in which the retained portion is engaged with the retaining portion.

Abstract: A negative active material for a rechargeable lithium battery, the negative active material including a core having silicon and a first carbon nanotube, an amorphous carbon coating layer surrounding the core, and a second carbon nanotube adhered to the amorphous carbon coating layer.

Abstract: Provided is an energy storage power supply including a housing having an accommodation cavity, a plurality of cells, a second support disposed in the accommodating cavity, a busbar assembly configured to electrically connect the cells, and a port provided on the housing and configured to connect the energy storage power supply to an electrical device or a charging device. The accommodation cavity is provided with a first support at an inner wall of the accommodation cavity. The first support is provided with a plurality of first fixing members. The cells correspond to the first fixing members in one-to-one correspondence, and first ends of the cells are accommodated in the first fixing members, respectively. The second support is provided with a plurality of second fixing members corresponding to the plurality of cells in one-to-one correspondence, and second ends of the cells are accommodated in the second fixing members, respectively.

Abstract: The present disclosure relates to a method for manufacturing a secondary battery including a gel polymer electrolyte and a secondary battery obtained thereby. The method can inhibit thermal crosslinking of a gel polymer electrolyte during the wetting with an electrolyte, and facilitate thermal crosslinking after the wetting with an electrolyte is finished. In addition, the method can increase uniformity of thermal crosslinking by controlling the oxygen content in a cell.

Abstract: A battery connector for connecting a replaceable battery to an aerial vehicle, comprising a housing configured for fixing to one of the replaceable battery and the aerial vehicle. The connector element includes a first connection portion for releasable connection to an external connection element of the other one of the replaceable battery and the aerial vehicle and a second connection portion for fixed connection to the replaceable battery or the aerial vehicle. The connector element is supported in a horizontal direction in the housing by at least one flexible element positioned at least partly between the connector element and the housing and in a vertical direction in the housing by an upper flexible element positioned between an upper part of the connector element and the housing and a lower flexible element positioned between a lower part of the connector element and the housing.

Abstract: A positive electrode for nonaqueous electrolyte secondary batteries according to the present invention is provided with a positive electrode collector and a positive electrode mixture layer that is formed on the surface of the positive electrode collector. The positive electrode mixture layer contains at least carbon fibers and a positive electrode active material that contains a lithium transition metal composite oxide; and the lithium transition metal composite oxide has a layered rock salt structure, while containing at least Ni, Al and Ca, but not substantially containing Co.

Abstract: A high temperature aging system includes a battery cell tray stack having a structure in which battery cell trays are stacked in multiple stages therein, one or more tray racks located inside a high temperature aging chamber and each including a grid-shaped storage space in which the battery cell tray stack is located, a stacker crane configured to transport the battery cell tray to the grid-shaped storage space, a thermal imaging camera installed on the stacker crane configured to acquire thermal image temperature data on the battery cell trays loaded in the grid-shaped storage space, and a controller configured to control a temperature inside the high temperature aging chamber on the basis of the thermal image temperature data.

Abstract: A rechargeable battery pack may include a battery cell configured to draw out an electrode tab from an electrode assembly accommodated in a pouch, a protection circuit module (PCM) connected to an electrode tab drawn out to a terrace of the pouch and connected to a printed circuit board (PCB) including a protection circuit through a flexible printed circuit board (FPCB). The rechargeable battery pack may include top tape configured to surround the protection circuit module and is attached to the battery cell to form a terrace space therein, and a flame retardant coated portion formed by coating a flame retardant coating agent on at least one portion of the protection circuit module exposed to an outside of the top tape.

Abstract: A battery box may include a box body for accommodating a battery cell; a first position-limit structure disposed on a side of a first wall of the box body away from the battery cell, wherein the first wall may be perpendicular to a first direction, the first direction is parallel to a traveling direction of the electrical apparatus after the box is mounted on the electrical apparatus, and the first position-limit structure may be used to limit a relative displacement of the box in the first direction.

Abstract: The present disclosure relates to a lithium secondary battery comprising a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and a non-aqueous electrolyte. The non-aqueous electrolyte includes an organic solvent, a lithium salt, a coumarin-based compound represented by [Chemical Formula 1], and a halogen-substituted cyclic carbonate, and the positive electrode active material includes a lithium manganese-rich oxide represented by [Chemical Formula 2].

Abstract: An aqueous zinc-ion battery cell which includes a membrane, an electrolyte solution, a zinc metal anode, and a cathode. The membrane includes electrospun polyethylenimine (PEI) and polyacrylonitrile (PAN) in the form of entangled nanofibers. The cathode contains one or more of zinc and magnesium oxide.

Abstract: Holders configured to detachably connect to battery cells may include a first polarity bus-bar portion configured to removably contact a first polarity terminal of a battery cell when the battery cell is positioned in an assembled location. The battery cell may have at least a portion of a casing encircling an axis of the battery cell, the portion of the casing defining the first polarity terminal. The first polarity bus-bar portion may include a first displaceable portion biased towards the assembled location of the battery cell such that the first displaceable portion is pressed into contact with the portion of the casing defining the first polarity terminal when the battery cell is in the assembled location. The holder may include a second polarity bus-bar portion configured to removably contact a second polarity terminal of the battery cell when the battery cell is positioned in the assembled location.

Abstract: A battery module housing for accommodating at least one cell stack for use in a motor vehicle. The battery module housing includes a plurality of housing units for accommodating battery cells, as well as a front and a rear cover member for closing the housing units. The housing units are designed as extrusion profiles and include a front and a rear face-side opening for introducing the battery cells and a housing wall arranged between the openings. The housing units are positively connected to one another via their housing wall and the front and rear cover elements are designed to cover the front and rear face-side openings of the housing units.

Abstract: Disclosed is an active material that can reduce an interface resistance with a sulfide solid electrolyte and improve the battery performance. The active material exhibits at least one peak in the range of from 0.145 nm to 0.185 nm and at least one peak in the range of from 0.28 nm to 0.31 nm in a radial distribution function obtained through measurement of an X-ray absorption fine structure of the active material. The active material is for use in a solid-state battery. The active material preferably has a core particle, and a coating layer located on the surface of the core particle.

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: Examples relate to vehicle battery systems comprising a base unit connectable to a vehicle's electrical system, a removable modular replaceable battery, and a secondary battery within the base unit. The base unit is configured to interchangeably use modular replaceable batteries of different chemistries. Control circuits optimize charging and discharging parameters based on battery chemistries. The secondary battery provides power when the modular battery is removed. The system includes thermal management, compatibility with lead-acid charging systems, and mobile base unit functionality. The modular battery can power external devices and can foreseeably store energy up to and beyond 1 kWh. The system operates at various voltages suitable for different vehicle types.

Abstract: A wiring module that is to be mounted on power storage elements having electrode terminals includes a flexible board to be electrically connected to the electrode terminals, a connector connected to the flexible board, and a casing holding the flexible board and the connector. The casing includes a case body to be fixed to the power storage elements, a connector holder holding the connector, and a connection portion that is expandable and retractable and connects the connector holder and the case body such that the connector holder is movable relative to the case body. The flexible board includes a board body section fixed to the case body, and an extra section extending from the board body section and having an end that is connected to the connector. The extra section moves according to expansion and retraction of the connection portion.

Abstract: An electrical storage module includes an insulating substrate that opposes an electrical storage group including a plurality of electrical storage devices and includes a plurality of through-holes, a plurality of current collecting foils that are arranged side by side at intervals from each other on a first surface of the insulating substrate on a side opposite to a surface that opposes the electrical storage group, and an insulating sheet that is disposed to cover the plurality of current collecting foils. The plurality of current collecting foils include a first current collecting foil and a second current collecting foil that are adjacent to each other at an interval in a direction parallel to the first surface.

Abstract: A current collector assembly includes an electrically conductive layer with several tabs used to electrically couple with one or more battery cells. The tabs may connect to an interconnect of the electrically conductive layer by way of a fuse. Several fuses may include portions of difference sizes. For example, one portion of the fuse may be relatively longer and narrower, while another portion of the fuse may be shorter and wider. The narrower portion may be positioned between insulating layers of the current collector assembly, while the wider portion extends from the insulating layers. The wider portion of the fuse increases the likelihood of the fuse remaining intact when various forces are exerted on the fuse.