Abstract: A battery module includes a cell stack including a plurality of battery cells stacked in a direction, a module housing having an internal space in which the cell stack is received and an air inlet and an air outlet through which air enters and exits, a valve installation hole formed through a side wall of the module housing, a feed valve nozzle installed at the valve installation hole facing the internal space of the module housing, and a water expandable member provided in the module housing. The water expandable member expands in volume when it absorbs water during operation of the feed valve nozzle to close at least one of the air inlet, the air outlet or the valve installation hole.

Abstract: Preparation of anhydrous lithium sulfide (Li2S) purified suitably for applications in advanced batteries, and, in particular, for synthesis of solid electrolytes based on Li2S, including sulfide solid electrolytes of the type that may be described as crystalline (e.g., polycrystalline), amorphous (e.g., glass) and combinations thereof, such as sulfide glass-ceramic solid electrolyte materials.

Abstract: A battery module includes a plurality of battery cells stacked on each other; a module case configured to accommodate the plurality of battery cells; and a plurality of thermal runaway prevention units provided in the module case and respectively disposed between the plurality of battery cells along a stacking direction of the plurality of battery cells.

Abstract: A process of producing a cathode electrocatalyst for metal-air batteries includes providing a carbon source suspension, a metal source solution, and a nitrogen source solution, subjecting the carbon source suspension and the metal source solution to a low-temperature hydrothermal reaction, subjecting a first precursor-containing product thus formed and the nitrogen source solution to a high-temperature hydrothermal reaction, and subjecting a second precursor thus formed to a heating treatment under a protective atmosphere. A cathode electrocatalyst produced by the process is also disclosed.

Abstract: The present disclosure provides a technique for constructing an electrode terminal with superior conductivity. An electrode terminal disclosed herein includes: a first member which has a connecting portion that is exposed to outside of the case; and a second member which is a plate-shaped conductive member arranged outside of the case. In addition, the connecting portion penetrates the case and the second member and forms a cap portion having a flat plate shape outside of the second member. Furthermore, a plurality of recessed portions are formed on an upper surface of the cap portion, and a bonding portion due to an intermetallic bond is formed on a boundary, which is between the first member and the second member, below each of the recessed portions. Accordingly, a contact resistance between the first member and the second member can be reduced and conductivity of the electrode terminal can be improved.

Abstract: A battery pack includes an enclosure assembly, a battery assembly housed within the enclosure assembly, a mounting structure secured to the enclosure assembly, and a mounting clamp that includes a first section mounted to the mounting structure and a second section contacting the battery assembly.

Abstract: A solid-state battery cell, such as a lithium-ion cell, is assembled with a solid electrolyte layer member positioned between co-extensive surface layers of an anode active layer member and a cathode active material layer member. At least one of the engaging surfaces of the solid electrolyte layer is not flat. It is formed with a topographical pattern comprising recesses in a flat surface, or a surface of projections and recesses, and placed against a compatibly-shaped, mating surface of the anode layer and/or the cathode layer. The re-shaping of the surface(s) of the solid electrolyte layer and adjoining electrode layer(s) is to significantly increase the effective contact area with the facing layer of electrode material and improve the conduction of ions across the interface. A thin film of interlayer material may be placed between the surfaces of the facing cell members with the specially shaped adjacent faces.

Abstract: A bipolar plate for a fuel cell, a fuel cell, and a method of designing a bipolar plate for a fuel cell having a hybrid flow field structure that includes a plurality of parallel feed flow channels fluidically connected to an inlet bipolar plate region, a plurality of parallel exit flow channels fluidically connected to an outlet bipolar plate region, and an interwoven pattern formed by a plurality of simplified periodic array flow field structure generated based on flow patterns generated by homogenized anisotropic porous media optimization. The flow field structure enhances fuel cell performance by facilitating lower pressure drop via minimized fluid flow resistance, and removal of accumulated water in the oxygen channel and the gas diffusion layer (GDL) under the ribs of the bipolar plate.

Abstract: A fuel cell includes: a solid oxide electrolyte layer having oxygen ion conductivity; a first electrode layer that is provided on a first face of the solid oxide electrolyte layer; and a second electrode layer that is provided on a second face of the solid oxide electrolyte layer, wherein a main component of a material having oxygen ion conductivity and a main component of a material having electron conductivity are common with each other between the first electrode layer and the second electrode layer.

Abstract: Provided are a liquid cooling plate and a battery module. The liquid cooling plate has a first liquid cooling portion and a second liquid cooling portion that are perpendicular to each other. The first liquid cooling portion is located at a middle position of the second liquid cooling portion in a first direction. The liquid cooling plate includes: a first plate body having a one-piece structure and including the first liquid cooling portion and a cover body portion of the second liquid cooling portion, the first plate body having a first flow channel of the first liquid cooling portion; and a second plate body having a one-piece structure and fixedly connected to the cover body portion, a second flow channel of the second liquid cooling portion being defined between the second plate body and the cover body portion. The first flow channel is in communication with the second flow channel.

Abstract: The invention relates to an electrochemical device that includes an electrochemical unit. The electrochemical unit includes a stack of SOEC/SOFC-type solid oxides operating at high temperatures, a clamping system provided with two clamping plates, referred to as the first clamping plate and second clamping plate, respectively, between which the stack is clamped, one and/or both of the two clamping plates having at least one gas inlet and at least one gas outlet. The unit includes heating means which are designed to ensure the heating of the electrochemical unit and are integrated into said unit. The device includes a containment box, housed in a volume, referred to as internal volume V, the electrochemical unit, the internal volume V being delimited by a surface, referred to as the internal surface S, of the containment box, which follows the shape of the electrochemical assembly.

Abstract: The fuel cell includes several assembled cells with end plates at the top and bottom of the cells that are compressed using an external retention kit. An end plate that is at the top or bottom of the assembly which separates the compression force on the active area and sealant around the cell. The end plates give the freedom and flexibility to adjust compression force on specific areas in the assembly accurately without interfering with other components and the active area.

Abstract: Provided is a method of improving a cycle-life of a rechargeable alkali metal-sulfur cell, the method comprising implementing an electronically non-conducting anode-protecting layer between an anode active material layer and a cathode active material without using a porous separator in the cell, wherein the anode-protecting layer has a thickness from 1 nm to 100 ?m and comprises an elastomer having a fully recoverable tensile elastic strain from 2% to 1,000%, a lithium ion or sodium ion conductivity from 10?8 S/cm to 5×10?2 S/cm, and an electronic conductivity less than 10?4 S/cm when measured at room temperature. This battery exhibits an excellent combination of high sulfur content, high sulfur utilization efficiency, high energy density, no known dendrite issue, no dead lithium or dead sodium issue, and a long cycle life.

Abstract: An electrolyte solution containing lithium ethyl sulfate and ethyl sulfate. The lithium ethyl sulfate is present in an amount of 0.1 to 2.0% by mass relative to the electrolyte solution. The lithium ethyl sulfate and the ethyl sulfate give a mass ratio of the lithium ethyl sulfate to the ethyl sulfate of 80 to 1500. Also disclosed is an electrochemical device and lithium ion secondary battery containing the electrolyte solution, a module including the electrochemical device and a method for producing lithium ethyl sulfate.

Abstract: Provided is a solid electrolyte which is identified as 3LiOH·Li2SO4 by diffractometry. The solid electrolyte further contains boron.

Abstract: Provided are: a non-aqueous electrolyte solution that can improve the charged storage characteristics of a non-aqueous electrolyte battery under a high-temperature environment while containing FSO3Li; and a non-aqueous electrolyte battery having excellent charged storage characteristics under a high-temperature environment. The non-aqueous electrolyte solution contains FSO3Li and a specific amount of ions of a specific metal element.

Abstract: The present invention relates to a direct alcohol fuel cell comprising a housing containing a proton exchange membrane (PEM) separating an anode section from a cathode section, which anode section and which cathode section are contained in the housing, the cathode section comprising a cathode collection element electrically connected to a cathode catalyst, which cathode catalyst is in diffusive communication with a gaseous oxidant, and the anode section comprising an anode collection element electrically connected to an anode catalyst, and a pervaporation membrane located at a spacing distance from the PEM, which pervaporation membrane provides diffusive communication between the anode catalyst and a fuel supply, wherein the housing comprises one or more venting holes providing fluid communication between the anode section and the ambient environment, which venting hole has or which venting holes have a largest dimension in the range of 25 ?m to 300 ?m, the venting hole being located within the spacing distan

Abstract: A top cap assembly includes a top cap plate, a mounting piece, and a protection film. The top cap plate includes an inner side and an outer side disposed opposite to each other along a thickness direction of the top cap plate, the inner side and the outer side are spaced apart from each other to form a receptacle in between, and the receptacle communicates with an outside space. The mounting piece is disposed protrusively in the receptacle and comprising a fixed end and a free end disposed opposite to each other. The fixed end is disposed on a wall of the receptacle, and the free end extends along the thickness direction of the top cap plate and is spaced apart from the wall of the receptacle to form a threading clearance. One end of the protection film is attached to the mounting piece through the threading clearance.

Abstract: A negative electrode for a non-aqueous electrolyte secondary battery including a negative electrode mixture layer including a negative electrode active material and a negative electrode additive, the negative electrode active material including a carbon material and a Si-containing material, the content of the Si-containing material in the negative electrode mixture layer being 5 mass % or more, and the negative electrode additive including a formaldehyde condensate of an aromatic organic acid having a hydroxyl group and/or an aromatic organic acid salt having a hydroxyl group.

Abstract: A battery module according to an embodiment of the present disclosure includes a plurality of battery cells, a busbar frame assembly supporting the plurality of battery cells and including a plurality of busbars electrically connected to electrode leads of the plurality of battery cells, and a plurality of fixing jig holes provided in top and bottom surfaces of the busbar frame assembly, and into which welding jigs for fixing the busbar frame assembly are configured to be inserted in a welding process for electrically connecting the electrode leads of the plurality of battery cells to the plurality of busbars.