Abstract: An electrical assembly includes a plate unit disposed on a battery module, at least one electrical equipment loaded on the plate unit, and a pack terminal loaded on the plate unit. The pack terminal includes a terminal bolt configured to be contacted and connected to a connector of an external device; and a nut configured to be fastened to the terminal bolt. The electrical assembly further includes at least one bus bar loaded on the plate unit and configured to electrically connect the pack terminal to a module terminal of the battery module. At a side portion of the plate unit, an insert portion that is open to allow the nut to be inserted therein is formed, and a slot portion is formed to fix the nut inserted through the insert portion at a predetermined position.

Abstract: A cell including: a pair of interconnectors for electrically connecting unit cells; a membrane-electrode assembly disposed between the interconnectors; a pair of current collectors, each of which includes an abutting surface abutting against a corresponding one of the electrode layers and a first base material surface being in contact with a corresponding one of the interconnectors and electrically connecting the corresponding of the electrode layers and the corresponding one of the interconnectors; and elastic bodies biasing the abutting surface of at least one current collector toward a corresponding one of the electrode layers. The elastic bodies includes: a second base material surface being in contact with the first base material surface; and an elastic body protruding portion supporting the abutting surface and protruding from the second base material surface toward the corresponding one of the electrode layers to bias the abutting surface toward the corresponding one of the electrode layers.

Abstract: Provided is a battery pack that, even in a case in which a metal plate and an electrode terminal are made of different metals, can increase reliability of the connection strength by welding them and can be configured at a low cost. A battery pack 1 includes adjacent battery cells 2 having positive and negative electrode terminals connected each other by a metal plate 3, and a dissimilar material bonding plate 4 having a terminal insertion hole 43 is disposed above a terminal connection hole 32, which is a long hole or a loose hole, into which an electrode terminal 24 composed of a different kind of metal from the metal plate 3.

Abstract: The disclosure relates to an end cover assembly, a secondary battery, a battery pack and an electric device. An end cover assembly for a secondary battery includes: an end cover; a first terminal including a first connecting section and a second connecting section disposed along a radial direction; a second terminal including a third connecting section, a fuse section and a fourth connecting section sequentially connected along the radial direction; along an axial direction, orthographic projections of the first and third connecting sections at least partially overlap with each other, one of the first and third connecting sections is configured to connect with a busbar, the other is configured to connect with an electrode assembly, the fourth connecting section is configured to connect with the second connecting section; and an insulating component, at least a part of which is located between the first connecting section and the third connecting section.

Abstract: A new weld configuration is used to obtain a robust and consistent resistance weld between the tabs of an anode current collector and the casing of an electrochemical cell. This is done by adding a resistive transferable electrode tip between at least one of the welding electrodes, preferably the movable welding electrode, and the stacked parts that are being joined together. The purpose of the transferable electrode tip is to generate a sufficient amount of heat during the welding process so that the stacked parts are joined together without adding any product functionality. In one embodiment of the present invention, the transferrable electrode tip is a stainless-steel ball, the stacked anode current collector tabs are of nickel, and the cell casing is of stainless-steel.

Abstract: A battery module includes a cell stack structure formed as a plurality of battery cells stacked and accommodated in a module case. The module case includes at least one hole forming plate having a plurality of resin injection holes formed therein for receiving an adhesive resin therethrough, and the plurality of resin injection holes are distributed on both a left side and a right side of a center of the hole forming plate in a longitudinal direction thereof, such that the resin injection holes on the left side and the right side are spaced apart from each other by a predetermined distance from the center of the hole forming plate in the longitudinal dimension.

Abstract: A fuel cell system includes a fuel feeder that supplies fuel, a fuel cell stack that generates power through an electrochemical reaction using air and a hydrogen-containing gas generated from the fuel, a first temperature sensor that senses the temperature of the fuel cell stack, and a controller. The fuel cell stack has a membrane electrode assembly including an electrolyte membrane through which protons can pass, a cathode on one side of the electrolyte membrane, and an anode on the other side of the electrolyte membrane. The controller defines an upper limit of current output from the fuel cell stack on the basis of the temperature of the fuel cell stack, the supply of the fuel, and the hydrogen consumption of the fuel cell stack associated with internal leakage current and keeps the current output from the fuel cell stack at or below the upper limit.

Abstract: A fuel cell metal separator is stacked on a membrane electrode assembly to form a power generation cell. The membrane electrode assembly includes an electrolyte membrane and electrodes provided on both sides of the electrolyte membrane, respectively. The fuel cell metal separator includes a bead seal for preventing leakage of a fuel gas, an oxygen-containing gas, or a coolant as fluid. A top of the bead seal is configured to become flat in cross section by application of a compression load to the power generation cell.

Abstract: The invention concerns a multi-battery assembly, and a container comprising such an assembly, for use in particular in the field of high energy-density assemblies comprising a plurality of Ni—Cd, Ni-MH, lead-acid or Li-ion stationary batteries stored in a container or a library-like room. The multi-battery assembly comprises at least three rows (1 to 4) of batteries (12 to 23) connected in series and/or parallel, including two end rows (1, 4) and at least two intermediate rows (2, 3), each row being connected in series and/or parallel to at least one adjacent row, extending in a first direction (d1), and comprising at least one level (36 to 38) of a plurality of batteries connected in series and/or parallel, each of the levels extending in the first direction (d1).

Abstract: A battery pack includes a first core pack and a second core pack each holding a plurality of unit cells. The unit cells of a first cell group or second cell group that is closest to a connector are electrically connected to the connector through a third busbar. The unit cells of the first cell group or second cell group that is most distant from the connector are electrically connected to the connector through a fourth busbar.

Abstract: A pair of end plates of a battery module are disposed respectively at end faces of a battery stack. Each of the end plates includes a first metal sheet, a second metal sheet, and a metal rod. The first metal sheet includes a plate part corresponding to a shape of each of the end faces of the battery stack, and a bent side piece provided at each of widthwise sides of the plate part. The second metal sheet includes a parallel plate part stacked on and fixed to the plate part of the first metal sheet, and a bending ridge that connects with each of sides of the parallel plate part and extends along widths of the end plates. A tubular reinforcement is defined on an inner side of the bending ridge. A metal rod is disposed in the tubular reinforcement and has ends connected to the bind bar.

Abstract: The present invention relates to a electrical energy storage device for an electrical appliance, which electrical energy storage device includes a housing, which housing defines a receiving space in which at least one electrical energy store is received, which electrical energy storage device includes at least two electrically conductive contacts which are accessible from an outer side of the housing and which are electrically operatively connected directly or indirectly to the at least one electrical energy store, wherein the housing has at least one contact opening, through which the at least two contacts are accessible or protrude from the housing, and wherein the at least one contact opening is surrounded by a continuous sealing element.

Abstract: A battery cell providing a coated lithium reference lead includes at least one anode layer, at least one cathode layer, and a reference lead. The reference lead includes a conductive wire, a layer of lithium metal coupled to the conductive wire, and a polymer coating that covers the layer of lithium metal. The reference lead is inserted into the battery cell with the at least one anode layer and the at least one cathode layer.

Abstract: A unit module includes: a battery cell having an electrode assembly, a cell case for accommodating the electrode assembly, and an electrode lead connected to the electrode assembly and drawn out of the cell case; a bus bar attached to the electrode lead; and a bus bar frame attached to a terrace portion of the battery cell to accommodate at least a portion of the electrode lead and the bus bar therein, the bus bar frame pressing the electrode lead and the bus bar so that the electrode lead and the bus bar are adhered to each other, the bus bar frame having a welding slit formed at a location corresponding to the bus bar and the electrode lead so that a contact portion of the bus bar and the electrode lead is exposed out of the bus bar frame.

Abstract: A battery module allows improved manufacturing due to easy electric connection between a bus bar assembly and secondary batteries. The battery module includes a cell stack formed by stacking a plurality of secondary batteries having electrode leads on each other in a stacking direction; and a bus bar assembly including a connection bus bar contacting two or more of the electrode leads of the plurality of secondary batteries and having an insert groove formed so that at least one of the electrode leads is inserted therein, and a coupling bus bar coupled to the connection bus bar and having a rear surface formed to press the at least one of the electrode leads inserted in the insert groove.

Abstract: This disclosure details exemplary battery pack designs for use in electrified vehicles. An exemplary battery pack may include one or more busbar retainer clips adapted for securing busbars within the battery pack. The retainer clips may secure the busbars in a manner that prevents material contact between the busbars and surrounding enclosure surfaces and substantially reduces any noise, vibration, and harshness issues.

Abstract: A method for preparing a separator, a separator prepared using the same, and an electrochemical device including the same. More specifically, stability of the separator may be reinforced by preparing the separator using a slurry prepared by pre-dispersing an inorganic material and a dispersion resin, and then mixing a binder thereto when preparing the separator.

Abstract: A manifold includes first and second manifold main bodies. The first manifold main body includes a gas supply chamber that is connected to a first gas channel and the second manifold main body includes a gas collection chamber that is connected to a second gas channel. The first manifold main body includes a top plate, a first bottom plate, and a first side plate. The top plate includes a first through hole for connecting the first gas channel and the gas supply chamber. The second manifold main body includes the top plate, a second bottom plate, and a second side plate. The top plate also includes a second through hole for connecting the second gas channel and the gas collection chamber. The first bottom plate and the second bottom plate are constituted by members that are separate from each other.

Abstract: Embodiments of the present application relate to an electrochemical device. Specifically, the electrochemical device includes a cathode, an anode and a separator, the separator being disposed between the cathode and the anode, the separator including a porous substrate and a porous layer, and the porous layer being disposed on a surface of the porous substrate and including inorganic particles and a binder, where a ratio of a puncture elongation of the porous substrate to a puncture force of the porous substrate is about 1.5 mm/N to about 25 mm/N. A lithium-ion battery including the separator, provided by the present application, improves the safety performance of the lithium-ion battery.

Abstract: A plurality of battery cells of a battery pack may include at least one first battery cell arranged in a first row, at least one second battery cell arranged in a second row adjacent to the first row, at least one third battery cell arranged in a third row adjacent to the second row, and at least one fourth battery cell arranged in a fourth row adjacent to the third row. The at least one first battery cell and the at least one second battery cell are connected in series. Each of the at least one first battery cell is connected in parallel with a corresponding one of the at least one third battery cell. Each of the at least one second battery cell is connected in parallel with a corresponding one of the at least one fourth battery cell.