Abstract: An electrochemical apparatus includes an electrode plate, where the electrode plate has a current collector and an active material layer disposed on at least one surface of the current collector, the active material layer has at least one pore, and an included angle between an axial direction of the at least one pore and a plane on which a surface of the active material layer lies is ?, where ?°??<90°. This improves efficiency of the electrode plate in infiltration and absorption of the electrolyte, thereby improving rate performance, cycling performance, safety, stability, and other qualities of the electrochemical apparatus.

Abstract: The present disclosure relates generally to a carbon-neutral process for the generation of carbon-neutral hydrogen and carbon-neutral electricity. More specifically, the present disclosure relates to compositions, methods and apparatus employing a carbon-neutral process for generating electricity employing a liquid organic hydrogen carrier (LOHC) for supplying hydrogen for generating the carbon neutral electricity. The present disclosure also relates more specifically to carbon-neutral compositions consisting of liquid organic hydrogen carriers used for supplying hydrogen to generate electricity that may be regenerated in a carbon-neutral process using an apparatus with a net zero atmospheric emission of carbon oxides.

Abstract: Provided is a graphite-based negative electrode active material that can impart both high output characteristics and high cycle characteristics to a nonaqueous electrolyte secondary battery. The graphite-based negative electrode active material disclosed herein is made up of particles having, in a cross-sectional view, a flat central portion made up of graphite, and a porous accumulation portion made up of accumulated graphite, on both sides of the flat central portion. The graphite that makes up the flat central portion is present more densely than the graphite that makes up the porous accumulation portion.

Abstract: A redox matched flow battery utilizes insoluble functionalized catholyte and anolyte beads to store charge on redox-active moieties tethered to the beads, with charge being transferred between the electrodes and the bead using a soluble, redox-matched mediator.

Abstract: A battery pack that is connectable to and supportable by a power tool (e.g., a hand-held power tool). The battery pack includes a top housing having a support member. The support member of the battery pack top housing is configured or operable to reinforce a support portion of the battery pack that is used to connect the battery pack to the power tool. By reinforcing the support portion of the battery pack, an interface between the battery pack and the power tool is able to withstand greater forces (e.g., from vibrations caused by the power tool).

Abstract: A battery pack disclosed herein may be provided with: a casing having a bottom surface and a front surface; and a plurality of battery cells housed inside the casing. A finger rest recess for a user to put a finger in may be defined across the bottom surface and the front surface of the casing. An anti-slip portion configured to prevent the finger of the user from slipping from rear to front may be arranged in the finger rest recess. The plurality of the battery cells may include a first battery cell arranged frontmost among the plurality of the battery cells. When the battery pack is viewed from below, the finger rest recess and the first battery cell may overlap at least partially.

Abstract: The present invention provides an energy storage device comprising a cathode region or other element. The device has a major active region comprising a plurality of first active regions spatially disposed within the cathode region. The major active region expands or contacts from a first volume to a second volume during a period of a charge and discharge. The device has a catholyte material spatially confined within a spatial region of the cathode region an spatially disposed within spatial regions not occupied by the first active regions. The device has a protective material formed overlying exposed regions of the cathode material to substantially maintain the sulfur species within the catholyte material. Also included is a novel dopant configuration of the LiaMPbSc (LMPS) [M=Si, Ge, and/or Sn] containing material.

Abstract: A nonaqueous electrolyte secondary battery separator having excellent impact absorbency includes a polyolefin porous film having a full width W at half maximum of a peak of an MD component of not less than 30 degrees. The full width W at half maximum of the peak of the MD component is calculated from an azimuthal profile of a scattering peak on a plane obtained by wide-angle X-ray scattering measurement that is carried out by irradiating a surface of the polyolefin porous film with an X-ray from a direction vertical to the surface of the polyolefin porous film, and/or having a maximum-to-minimum intensity ratio r of not more than 3.6. The maximum-to-minimum intensity ratio r is calculated from a Fourier transformed azimuthal profile obtained by observing the surface of the polyolefin porous film by SEM.

Abstract: An electrode assembly and a secondary battery are provided. In an exemplary embodiment, an electrode assembly includes: a first electrode plate having a first electrode tab attached thereto; a second electrode plate having at least one second electrode tab attached thereto; and a separator between the first electrode plate and the second electrode plate, the electrode assembly wound in a state in which the first electrode plate, the separator, and the second electrode plate are stacked, and the first electrode plate includes coating portions formed by coating an active material on first and second surfaces thereof, and a half-coating portion formed by coating the active material on only one of the first and second surfaces at a region corresponding to a leading edge, on the basis of a winding direction, where an active material of the second electrode plate begins.

Abstract: A method for manufacturing a diaphragm-electrode arrangement including seal from at least one layer material and an electrode material. A diaphragm-electrode arrangement made of an electrode material and at least one layer material is provided either from a common roll store or as a layer assemblage from individual rolls. The electrode material is connected to the at least one layer material by an injection molding process. Cavities and edge areas in the at least one layer material are filled up by the injection molding material and form a seal of the band-shaped diaphragm-electrode arrangement. The injection molding material, in particular TPE, is used in the following stacking process as a seal between the electrodes.

Abstract: A fuel cell cooling system mounted on a vehicle includes a flow path for a coolant; a cooling unit that cools the coolant in a cooling unit flow path; a fuel cell to be cooled through heat exchange with the coolant in a fuel cell flow path; a heat generating body to be cooled through heat exchange with the coolant in a heat generating body flow path; first and second pumps that pump the coolant in the fuel cell and heat generating body flow paths, respectively; and a control circuit. When the vehicle is started, the control circuit performs a first process of actuating the first pump with the second pump stopped, and a second process of actuating the first and second pumps when the temperature of the coolant in the fuel cell or cooling unit flow path exceeds a first reference value during the first process.

Abstract: A battery module includes a battery cell stack in which a plurality of battery cells are stacked, and a busbar frame located on a front surface or a rear surfaces of the battery cell stack, the busbar frame includes a support part surrounding at least a portion of a bottom surface of the battery cell stack, and the support part includes an extension region extending from the busbar frame in a lengthwise direction of a battery cell of the plurality of battery cells, and a protrusion region on the extension region.

Abstract: Provided is a battery pack which is miniaturized by reducing the number of components of a latch mechanism of the battery pack. In the battery pack comprising housings that accommodate a plurality of battery cells, and detachable latches, the latches have manipulation parts that are manipulated by an operator, springs that bias the manipulation parts to the outside of the housings, and first abutting parts on which ends of the springs abut. The manipulation parts move horizontally below the upper wall of the housing, and portions thereof are exposed to the outside from through holes formed in the housing. Furthermore, the latches are supported from below by any one among a separator holding the battery cell, a circuit board, and a lower case.

Abstract: A magnetic alignment device applies a magnetic field to a negative electrode slurry by introducing a magnet part to an upper and a lower portion of a negative electrode current collector to which the negative electrode slurry is applied, respectively, wherein a first region located upstream along a transfer direction of the negative electrode current collector is capable of applying a stronger magnetic force than a second region located downstream in the magnet part. Accordingly, in manufacturing the negative electrode, the alignment of the carbon-based negative electrode active material contained in the negative electrode slurry and the arithmetic mean height of the surface of the negative electrode active layer can be easily controlled to a certain range. Furthermore, the negative electrode prepared according to the method has the advantage of having excellent electrical properties and surface properties of the negative electrode active layer.

Abstract: A battery pack that is connectable to and supportable by a power tool (e.g., a hand-held power tool). The battery pack includes a top housing having a support member. The support member of the battery pack top housing is configured or operable to reinforce a support portion of the battery pack that is used to connect the battery pack to the power tool. By reinforcing the support portion of the battery pack, an interface between the battery pack and the power tool is able to withstand greater forces (e.g., from vibrations caused by the power tool).

Abstract: An end cover assembly includes: an end cover with a through hole for injecting electrolyte and a first clamping portion, wherein the first clamping portion is disposed along a circumferential direction of the through hole and is located on one side of the end cover away from an interior of the battery cell; a sealing ring for sealing the through hole; and a pressure relief device covering at least part of the sealing ring and closing the through hole; wherein the pressure relief device includes a second clamping portion, and is rotatable such that when the pressure relief device is rotated to a first position, the second clamping portion is clamped with the first clamping portion; and when the pressure relief device is rotated to a second position, the second clamping portion is disengaged from the first clamping portion.

Abstract: An opening is formed at an end portion of a stack case that houses a fuel cell stack. A unit cell constituting a fuel cell stack is provided with a cell voltage detection terminal at a position facing an opening. A conductor extends from the cell voltage detection terminal. The opening is covered with a porous cover that is formed with a plurality of through-holes. The porous cover is formed with an annular protrusion on an end face facing the cell voltage detection terminal. The annular protrusion is located among the plurality of through-holes.

Abstract: An electrochemical apparatus includes a positive electrode plate including a positive electrode active material layer; a negative electrode plate including a negative electrode active material layer; and a separator disposed between the positive electrode plate and the negative electrode plate. A mass ratio of fluorine to sulfur in a surface layer of the positive electrode active material layer is A, and a mass ratio of fluorine to sulfur in a surface layer of the negative electrode active material layer is B, where 30?A?300, and 5?B?50.

Abstract: An active material structure includes first active material lines arranged in a first direction, second active material lines arranged in a second direction intersecting the first direction, and intermediate active material lines between the first active material lines and the second active material lines in a third direction intersecting the first direction and the second direction, the intermediate active material lines provided in overlapping regions of the first active material lines and the second active material lines, wherein the upper active material lines and the second active material lines are electrically connected by the intermediate active material lines.

Abstract: A partition member having a thermal insulating material capable of retaining a liquid, and an external package housing the thermal insulating material and the liquid, having a particular set relationship among the internal space area of the external package, the size of the thermal insulating material, the thickness of the thermal insulating material, and the volume of the liquid.