Abstract: A battery cover including a main body, an opening/closing part provided on the main body, a flexible rib having a locking projection provided on the opening/closing part, an abutting rib provided on the main body, which has a locking recess to be engaged with the locking projection while the opening/closing part is opened to the main body, a contact portion that abuts on the locking projection and deflects the flexible rib when the opening/closing part is opened to the main body, and a flat portion provided on the contact portion, which abuts on the locking projection first when the opening/closing part is opened to the main body and extends in the direction orthogonal to the direction of force input when abutting on the locking projection.

Abstract: A graphite-based material for a lithium ion secondary battery, the graphite-based material comprising a coating film on at least a part of the surface of a graphite particle, the coating film comprising a lithium fluorophosphate compound having a specific composition.

Abstract: The present application provides a separator and an energy storage device. The separator comprises: a first porous substrate; and a second porous substrate arranged on at least one surface of the first porous substrate; wherein the elongation at break of the second porous substrate is greater than the elongation at break of the first porous substrate in at least one of the machine and transverse directions of the separator. The separator has a high tensile strength and an elongation at break and good heat resistance, and may improve the safety performance of the energy storage device when the separator is applied to the energy storage device.

Abstract: Disclosed is a binder composition for non-aqueous secondary battery electrode which comprises: a water-soluble polymer which comprises an acid group-containing monomer unit; and water, wherein the water-soluble polymer comprises the acid group-containing monomer unit in an amount of 5% to 70% by mass, and wherein the water-soluble polymer comprises water-soluble polymer particles having a radius of gyration of 200 nm or less in an amount of 95% to 100% by mass.

Abstract: A metal air battery system having a rotating anode/cathode assembly. The assembly is mounted in a housing system that provides a mechanism for loading of fresh metal anodes for the purpose of mechanical recharge of the battery. The anode and cathode are able to rotate at high speed for the purposes of producing local high centrifugal (g) forces on their respective surfaces for the purpose of wiping clean liquid electrolyte from their surface to provide for almost instantaneous shutdown of chemical reactions producing hydrogen gas and electric current. The anode and cathode are also rotated at slower speeds for the purpose of providing an even corrosion of the metal anode surface and the cathode rides on the liquid electrolyte using a dynamic and or static liquid bearing design. This liquid bearing provides a constant distance and therefore electrical resistance in the battery.

Abstract: An integrated plate is configured with a positive electrode plate, a negative electrode plate, and a separator integrated in a card-like shape. The integrated plate comprising a storage part, a positive current collecting part, and a negative current collecting part is formed in an integrated plate manufacturing process. An electrode laminated body is manufactured in a piling process by piling a plurality of the integrated plates such that the storage parts, the positive and negative current collecting parts are overlapped together seen from upper position respectively The integrated plate manufacturing process includes a raising step of forming a raised part raised from other parts by partly bending or curving in at least a coinciding one of the positive current collecting part and the negative current collecting part for the plurality of the integrated plates, and the raised parts are overlapped one another seen from upper position in the piling process.

Abstract: Various arrangements for compressing a cylindrical battery cell are presented herein. The cylindrical battery cell may be wrapped in a buffer material. The buffer material may then be compressed using a compression mechanism. The buffer material may uniformly distribute pressure applied to the buffer material to a curved sidewall of the cylindrical battery cell. The cylindrical battery cell may be heated while the buffer material is being compressed using the compression mechanism.

Abstract: A plurality of unit cells is stacked on each other in a secondary battery, and each of the plurality of unit cells includes first and second collector layers, which are spaced apart from each other, and a 3-dimensional (“3D”) electrode structure provided between the first and second collector layers and having an outer side surface that is externally exposed and insulated, wherein, in the plurality of unit cells, the first collector layers are stacked to face each other and the second collector layers are stacked to face each other.

Abstract: Provided is a method for operating a redox flow battery, the method including a step of mixing a predetermined volume of a positive electrolyte and a predetermined volume of a negative electrolyte at a predetermined period, in which the predetermined period is time x selected from a range of 320 hours or less, the predetermined volume is y % of a storage volume set for one of a positive electrolyte tank and a negative electrolyte tank, y is equal to or higher than a value represented by y=0.01%×x, when x is selected from a range of 30 hours or less, y is equal to or lower than a value represented by y=0.9%×x, and when x is selected from a range of more than 30 hours to 320 hours, y is 27.0% or less.

Abstract: Disclosed are a membrane-electrode assembly, a method of manufacturing the same, and a fuel cell including the membrane-electrode assembly. The membrane-electrode assembly includes a catalyst layer, an interfacial adhesive layer which is positioned on the catalyst layer and formed by permeating an interface between the interfacial adhesive layer and the catalyst layer into a partial depth of the catalyst layer, and an ion exchange membrane which is positioned on the interfacial adhesive layer and bonded to the catalyst layer by the medium of the interfacial adhesive layer, the interfacial adhesive layer including a fluorine-based ionomer having an equivalent weight (EW) of 500 to 1000 g/eq.

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

Abstract: A joining structure includes a first bonded member and a glass portion that is bonded to a surface of the first bonded member. The glass portion includes an interface region not exceeding 5 ?m of the surface of the first bonded member, and an inner region more than 5 ?m from the surface of the first bonded member. The interface region and inner region respectively include rod-shaped crystal particles that have three or more aspect ratios when viewed in cross section. An average orientation angle of the rod-shaped crystal particles included in the interface region is greater than or equal to 60 degrees and less than or equal to 120 degrees. A standard deviation of the orientation angle of the rod-shaped crystal particles included in the inner region is greater than a standard deviation of the orientation angle of the rod-shaped crystal particles included in the interface region.

Abstract: A sensing block having a block body and a first connecting member of conductive material. The block body includes a terminal seat section and a cell lead coupling section provided on one or both sides of the terminal seat section. The first connecting member is positioned to correspond to the terminal seat section.

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

Abstract: When setting a requested operating point of a compressor that supplies oxidizing gas to a fuel cell by a target flow rate and a target pressure ratio, a control section of a fuel cell system sets the target pressure ratio to be equal to or higher than a minimum pressure ratio corresponding to the target flow rate using a predetermined operation characteristic in which a minimum pressure ratio that can be realized to the flow rate that can be discharged from the compressor. In the case where a condition under which it should be determined that the minimum value of the pressure ratio in an actual operation characteristic of the compressor differs from the minimum pressure ratio in the predetermined operation characteristic is satisfied, the control section updates the minimum pressure ratio in the predetermined operation characteristic using the minimum value of the pressure ratio in the actual operation characteristic.

Abstract: An electrode assembly and rechargeable battery, the electrode assembly including a first electrode including a first sub-electrode in which an active material is on both surfaces of a base substrate, a second sub-electrode in which the active material is on one surface of the base substrate, and a first electrode uncoated region extending from the first sub-electrode; a second electrode including a third sub-electrode in which an active material is on both surfaces of a base substrate, a fourth sub-electrode in which the active material is on one surface of the base substrate, and a second electrode uncoated region extending from the third sub-electrode; and a separator between the electrodes, wherein the active material at the third sub-electrode includes a protruding portion protruding therefrom, and a distance from the end of the active material at sides based on the third sub-electrode to the protruding portion is 0 to 3 mm.

Abstract: A negative electrode active material which is a negative electrode active material containing particles of a negative electrode active material, wherein the particles of the negative electrode active material contain particles of a silicon compound which contain a silicon compound (SiOx: 0.5?x?1.6), the particles of the negative electrode active material contain lithium, and the particles of the negative electrode active material have a peak in the range of 2?=31.8±0.5° measured by X-ray diffraction spectrum using K? line of Cu. According to this constitution, it is provided a negative electrode active material capable of improving cycle characteristics and initial charge and discharge characteristics when it is used as a negative electrode active material of a lithium ion secondary battery.

Abstract: A fuel cell system includes at least one modular enclosure having a top wall, a bottom wall, and a plurality of side walls that connect the top wall and the bottom wall and close off the modular enclosure on all sides; at least one fuel cell stack disposed within the at least one modular enclosure; at least one piping manifold configured to supply at least one process gas to the at least one fuel cell stack and to receive at least one exhaust process gas from the at least one fuel cell stack; and at least one process gas seal configured to seal the at least one piping manifold. The at least one process gas seal is effected via a static force from a weight of the at least one fuel cell stack or a weight of the at least one piping manifold.

Abstract: A battery module includes: a battery cell stack having a plurality of battery cells stacked; a case configured to accommodate the battery cell stack; and a heat dissipation member inserted into the case and supported in contact with the battery cell stack.

Abstract: The disclosure relates to a battery module. The battery module comprises: a first end plate, a plurality of batteries and a second end plate successively arranged in a direction, wherein the battery comprises a top cover; a connecting component, wherein the first end plate is fixedly connected to the second end plate through the connecting component; and a pulling component comprising a first connecting segment, an intermediate segment and a second connecting segment successively arranged, wherein the first connecting segment is fixedly connected to the first end plate, the intermediate segment is disposed facing the top cover, and the second connecting segment is fixedly connected to the second end plate, and wherein the pulling component can tighten the first end plate and the second end plate in an arrangement direction of the batteries to compress the batteries along with the first end plate and the second end plate.