Abstract: An embodiment of the application provides a battery pack, a manufacturing method therefor, and an electric device. The battery pack includes a battery unit and a support. The battery unit includes two or more secondary batteries, and has an intermediate portion and two ends. The two ends are located on both sides of the intermediate portion in a direction in which the secondary batteries are arranged. The support is configured to support the battery unit, and includes a body and a heat-resistant component arranged thereon. The heat-resistant component is arranged corresponding to at least one of the ends, so that the heat exchange amount of the end passing through the support is less than the heat exchange amount of the intermediate portion passing through the support. The temperature difference between the end and the intermediate portion of the battery unit is reduced, and the working efficiency is improved.

Abstract: A battery apparatus includes a casing and at least one first insert disposed on the casing. The first inserts has an electromagnetic shielding layer. The battery apparatus further includes at least one second insert disposed on the casing. The first insert and the second insert are arranged at intervals. The electromagnetic shielding layer of the first insert is electrically connected to the casing through the second insert.

Abstract: A coolant containment system for a battery pack includes a coolant retention container defining a containment space, an inlet connected to the coolant retention container, the inlet connected to an inlet line configured to receive a coolant, an outlet connected to the coolant retention container, the outlet connected to an outlet line, the outlet line configured return a coolant, a drain plug connected to the coolant retention container and in communication with the containment space. The inlet line and the outlet line are disposed entirely within the containment space and any coolant from a leak is retained within the containment space and exits the containment space to an environment outside the battery tray via the drain plug.

Abstract: An electrode for an all-solid-state battery includes an active material, a first solid electrolyte, and a second solid electrolyte. A mean particle diameter of the active material is greater than or equal to 0.01 ?m and less than or equal to 0.7 ?m. A mean particle diameter of the first solid electrolyte is greater than or equal to 0.01 ?m and less than or equal to 0.7 ?m. A mean particle diameter of the second solid electrolyte is greater than or equal to 0.7 ?m and less than or equal to 2.0 ?m.

Abstract: According to an embodiment disclosed herein, a fuel cell system includes a cooling line through which cooling water passing through a plurality of electronic parts circulates and in which a wire for supplying power to the plurality of electronic parts is disposed, a pump that is connected to the cooling line and pumps the cooling water, a cooling fan that cools the cooling water, and a controller that determines a control mode based on a temperature of the wire and controls the number of rotations of the pump and the number of rotations of the cooling fan based on the control mode.

Abstract: The invention relates to active electrode materials and to methods for the manufacture of active electrode materials. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries. The invention provides an active electrode material expressed by the general formula M1aM21-aM3bNb49-bO124-c-dQd.

Abstract: A negative electrode current collector for a lithium metal battery. The negative electrode current collector includes a metal current collector substrate and a coating layer. The coating layer is formed on at least one surface of the metal current collector substrate. The coating layer includes a ferroelectric material, a metallic material capable of alloying with lithium, a conductive material, and a binder.

Abstract: An electrical storage module includes: a plurality of electrical storage devices; and a bus bar that connects electrode terminals of the electrical storage devices to each other, in which the electrical storage device includes an outer covering can in which an opening is formed, and a plate-shaped sealing body that is provided with the electrode terminal and is inserted into the opening of the outer covering can, the electrode terminal has a container that includes a through-hole or a recess that is formed in a direction substantially orthogonal to a direction in which the sealing body is inserted into the outer covering can, and the bus bar includes a press-fitting portion that is press-fitted into the container.

Abstract: A rechargeable battery pack includes: a battery housing having an accommodation space; a plurality of cell modules in the accommodation space an having a plurality of unit battery cells connected to each other, and obliquely arranged; a holder part supporting the cell module inside the battery housing; and a bus bar at an upper side of the holder part and connecting electrode terminals of the unit battery cells, wherein the bus bar is between the cell modules at the upper side of the holder, and a lead part connected to the electrode terminal is obliquely protruded from at least one side of the bus bar.

Abstract: The solid electrolyte material of the present disclosure is made of Li, Ca, Y, Gd, X, and O, where X is at least one selected from the group consisting of F, Cl, Br, and I; and the molar ratio of O to the sum of Y and Gd is greater than O and 0.51 or less.

Abstract: A positive active material, containing a compound with a P63mc space group. In an XRD pattern of the positive active material, a (002) crystal plane of the compound with the P63mc space group is located between 17.5° and 19°, and a full width at half maximum of the (002) crystal plane falls between 0.05 and 0.1. The positive active material at a high voltage of 4.8 V exhibits a considerable discharge capacity and desirable structural reversibility and cycle stability.

Abstract: The present invention relates to a lamination apparatus for manufacture of an electrode assembly, and more particularly to a lamination apparatus including a pressing roll configured to press electrodes constituting the electrode assembly, a rotary shaft configured to rotate the pressing roll, a pressing cylinder configured to adjust pressing force applied to the pressing roll, and a thickness measurement sensor configured to measure the thickness of one of the electrodes, whereby it is possible to secure the force of adhesion between the electrodes constituting the electrode assembly even though there is deviation in thickness between electrode mixture layers.

Abstract: A battery cell, a manufacturing method, a manufacturing system, a battery and an electrical device are provided. In some embodiments, the battery cell of includes an electrode component; a casing for accommodating the electrode component and having an opening; an end cap for sealing the opening of the casing; a current collector member for electrically connecting the electrode component and the end cap, the current collector member including a base portion and an elastic portion connected to the base portion. The elastic portion abuts against the electrode component, so the elastic portion is not required to be welded to the electrode component, thus reducing metal particles to lower the risk of short circuit. The elastic portion is able to deform when squeezed by the electrode component and release the pressure therebetween by deformation, reducing the risk of crushing the electrode component due to excessive pressure.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including a lithium composite oxide containing at least nickel and cobalt, wherein since the cobalt in the lithium composite oxide has a concentration gradient having at least different slopes from a surface portion toward a central portion, it is possible to improve the stability of particles not only in a surface portion of the lithium composite oxide but also in a central portion thereof, a positive electrode including the positive electrode active material, and a lithium secondary battery using the negative electrode.

Abstract: A power storage device includes: a power storage stack including a first cell group, a second cell group, and a middle plate; a lower case having a bottom wall portion; a first heat conduction member disposed between the first cell group and the bottom wall portion; and a second heat conduction member disposed between the second cell group and the bottom wall portion. The lower case includes a pedestal portion supporting the middle plate, and the first heat conduction member and the second heat conduction member are provided to contact the pedestal portion.

Abstract: Provided are methods of effecting cation exchange in MXene materials so as to stabilize the materials. Also provided are compositions, comprising layered MXene materials that comprise an organic cation between layers. Also provided are MXene compositions comprising a chalcogen disposed thereon, the MXene composition further optionally comprising a quaternary ammonium halide disposed thereon.

Abstract: A pouch cell cutting apparatus according to an embodiment of the present disclosure, includes a top knife and a bottom knife for cutting a sealing part of a battery cell which includes a cell case and an electrode assembly housed in the cell case, wherein both side parts of the top knife comprises protrusion parts protruding toward the recessed parts formed on both side parts of the bottom knife, respectively, and wherein a corner part of the battery cell is cut by the protrusion part.

Abstract: Provided is an LDH separator including a porous substrate and a mixture of a layered double hydroxide (LDH)-like compound and In(OH)3, which fills up pores of the porous substrate. The LDH-like compound is a hydroxide and/or an oxide with a layered crystal structure containing Mg, Ti, Y, and optionally Al and/or In.

Abstract: A pressing mechanism with variable distance position and equal dividing for charging and discharging of the square battery comprises a frame; a pressing mechanism between top and bottom portions of the frame, comprising a lifting saddle, a lifting driving cylinder and restraining trays; a cam at the rear terminal of the restraining tray holder; a probe assembly at the bottom of the top frame, comprising probe modules having a probe module frame, a linear sliding rail holder, a linear sliding rail, a reset unit, a wire connector and probe units, the reset unit comprising a cam contact block and a horizontal driving unit connected with the front terminal of the cam contact block; the horizontal driving unit is at the rear terminal of the linear sliding rail holder; a wedge-shaped driving surface and a vertical surface matching with the cam are on the cam contact block from bottom to top.

Abstract: The present disclosure relate to the technical field of secondary batteries, and in particular, to a secondary battery and a top cover component thereof. The top cover component provided by the present disclosure includes a top cover plate having an electrode lead-out hole, and a second sealing portion and a second insulating portion stretching into the electrode lead-out hole, and the second sealing portion and the second insulating portion are at least partially staggered to each other on the radial direction of the electrode lead-out hole and are at least partially overlapped on the height direction. Based on this, a direct discharge clearance can be effectively blocked, and the creepage distance can be prolonged, thereby being conducive to reducing the risk of on fire or explosion and other problems of the secondary battery while withstanding a high voltage.