Abstract: A circuit module may include a circuit board and an overmold. The circuit board may have a first surface from which an electronic component extends and a second surface opposite the first surface. The circuit board may be characterized by a width across the circuit board. The circuit board may include a tie-bar residual extending from a sidewall of the circuit board beyond the width across the circuit board. The overmold may at least partially encapsulate the first surface of the circuit board and the second surface of the circuit board. The overmold may extend laterally beyond the width of the circuit board along a length of the circuit board. The overmold may define a region about the tie-bar residual characterized by a first recessed height with respect to the first surface and a second recessed height with respect to the second surface. The overmold may define a notch within the region recessed from an outer edge of the overmold.

Abstract: A lithium ion secondary battery system includes a chamber to accommodate a lithium ion secondary battery, a charging/discharging device for electrically charging and discharging the lithium ion secondary battery, a pressure plate disposed in the chamber and configured to press the lithium ion secondary battery when the lithium ion secondary battery is electrically charged, a pointed portion disposed in the chamber and configured to bore a hole in a pouch of the lithium ion secondary battery to enable gas generated during the electrical charging of the lithium ion secondary battery to be removed from the pouch, and a sealer configured to seal the pouch after the gas is removed.

Abstract: A fuel cell separator which is obtained by molding a composition that contains a carbonaceous material and a resin, and which is provided with a sealing part and a groove that serves as a gas flow channel on one surface or both surfaces. This fuel cell separator is configured such that the arithmetic mean heights Sa of the surface of the sealing part and the bottom surface and the peak of the groove on at least one surface are 0.50-1.60 ?m and the profile peak heights Spk thereof are 1.50 ?m or less as determined in accordance with ISO 25178-2 (2012). Consequently, this fuel cell separator has good hydrophilicity and good adhesion to a gasket.

Abstract: A multi-phase electrolyte film includes a first phase comprising a metal oxide, wherein the metal oxide is amorphous, crystalline, or a glass; and a second phase comprising a lithium salt having a decomposition temperature in air of greater than 200° C. or a lithium halide. The first phase is dispersed in the second phase and has an average particle size of 5 to 200 nanometers. Methods for the manufacture of the electrolyte film are also disclosed.

Abstract: A portable power device may comprise a housing configured to contain an internal power supply and an attachment strap releasably connected to the housing for securing the device to an object or with space. The housing may comprise a top portion connected to a bottom portion by at least one hinge, and a gasket may be disposed between the top portion and the bottom portion to inhibit moisture from entering the housing. At least one clasp may be disposed on a side of the housing opposite the at least one hinge, the at least one clasp being configured to maintain the housing in a closed position without the use of tools. An attachment bracket may be provided that is releasably connected to the housing.

Abstract: A fuel cell system includes a first fluid flow plate including a first plurality of first channels for flow of an oxidant or a fuel. The plurality of first channel has first channel cross-sectional flow areas. A second fluid flow plate includes a second plurality of second channels for flow of an oxidant or a fuel. The plurality of second channels has second channel cross-sectional flow areas. A membrane electrode assembly is located between the first plate and the second plate. The first flow plate includes a passage for a flow of a fluid entirely on a seam side of the first flow plate as the first plurality of first channels. The passage has a cross-sectional area for flow of the fluid smaller than the first channel cross-sectional flow area.

Abstract: A cell assembly group is provided, comprising: a plurality of cell assemblies, each cell assembly including an electrochemical cell and an outer wrap surrounding the cell; a foam sheet positioned adjacent one side of one cell assembly; a plurality of heat plates, each heat plate being positioned between two cell assemblies; and at least one spacer positioned between one heat plate and one cell assembly. Each outer wrap of each cell assembly of the plurality of cell assemblies includes a body having an inner surface that engages a rearward wall of the electrochemical cell of the cell assembly, a first portion having a flame barrier that engages a forward wall of the electrochemical cell of the cell assembly, and a second portion that engages an outer surface of the first portion.

Abstract: A lithium secondary battery comprises a cathode, an anode, a separator and a nonaqueous electrolyte solution. The cathode includes a first cathode active material in which at least one of metals included in the first cathode material has a concentration gradient region between a central portion and a surface portion, and a second cathode active material having a single particle structure. The lithium secondary battery has improved life-span and penetration stability.

Abstract: A method of manufacturing a membrane-electrode assembly including an electrolyte membrane and a catalyst layer-formed gas diffusion layer bonded to the electrolyte membrane, the method including: a liquid application step of applying, in the atmosphere, a liquid to only a surface of the catalyst layer before bonding; and a thermocompression bonding step of bonding, to the electrolyte membrane, the catalyst layer-formed gas diffusion layer to which the liquid is applied, by thermocompression bonding. Provided is a method of manufacturing a membrane-electrode assembly including a polymer electrolyte membrane and a catalyst layer-formed gas diffusion layer bonded to the polymer electrolyte membrane, in which the manufacturing method can achieve both the relaxation of thermocompression bonding conditions and the improvement of adhesion between the catalyst layer-formed gas diffusion layer and the electrolyte membrane with high productivity.

Abstract: Embodiments of the invention include batteries and other charge-storage devices incorporating sheets and/or powders of silica fibers and methods for producing such devices. The silica fibers may be formed via electrospinning of a sol gel produced with a silicon alkoxide reagent, such as tetraethyl ortho silicate, alcohol solvent, and an acid catalyst.

Abstract: A power storage module includes: a plurality of power storage cells; a first indication portion that is provided on each of the power storage cells and that indicates first identification information; and a second indication portion that is provided on each of the power storage cells and that indicates second identification information different from the first identification information. In a state in which the power storage module including the plurality of power storage cells is formed, the first indication portion is exposed to outside of the power storage module, and the second indication portion is not exposed to the outside of the power storage module.

Abstract: The present disclosure provides laminating equipment, method and a laminated structure, and relates to the technical field of jelly roll manufacturing. The laminating equipment includes a transferring mechanism and a carrying mechanism. The transferring mechanism is configured to transfer a composite bi-cell belt downward, wherein the composite bi-cell belt has thereon a plurality of composite bi-cell units, and two adjacent composite bi-cell units are connected to each other through a bending section. The carrying mechanism has a laminating plane, and the plurality of the composite bi-cell units are laminated one by one on the laminating plane, thereby forming a laminated structure.

Abstract: The present disclosure relates to a nano-engineered coating for cathode active materials, anode active materials, and solid state electrolyte materials for reducing corrosion and enhancing cycle life of a battery, and various process for applying the disclosed coating.

Abstract: A fuel cell system 1 includes a fuel cell FC having a plurality of fuel battery cells, a control unit Cnt configured to control power generation of the fuel cell FC, a power storage apparatus S, and a DCDC converter Cnv. The control unit Cnt makes the voltage of the fuel cell FC higher than the voltage of the power storage apparatus S when the power generation by the fuel cell FC is stopped and makes the power generated in the fuel cell FC when the power generation by the fuel cell FC is stopped chargeable to the power storage apparatus S through a first path having diodes D1, D3, D5.

Abstract: A method for use in manufacturing a fuel cell stack includes assembling a membrane electrode assembly to have a membrane between a first gas diffusion layer and a second gas diffusion layer. A bypass blocker is located at a space between a first gas diffusion layer of the membrane electrode assembly and a seal. The blocker is deformed on the seal and deformation is avoided of the blocker at the space such that the blocker inhibits a bypass flow of a reactant through the space between the gas diffusion layer and the seal in a direction of flow of the reactant during operation of the fuel cell. The membrane electrode assembly is located between a first fluid flow plate and a second fluid flow plate.

Abstract: A method of reforming a negative electrode layer of a secondary lithium battery may include execution of a reforming cycle that reforms a major facing surface of the negative electrode layer by eliminating at least a portion of a lithium dendrite or other lithium-containing surface irregularity that has formed on the major facing surface of the negative electrode layer.

Abstract: A secondary battery includes a body including a solid electrolyte layer, and a positive electrode and a negative electrode disposed with the solid electrolyte layer interposed therebetween; and first and second external electrodes respectively disposed on one surface and the other surface of the body, opposite to the one surface, and respectively connected to the positive electrode and the negative electrode, wherein the positive electrode comprises a positive electrode active material layer and a first electrolytic mixing portion disposed at an interface of the positive electrode in contact with the solid electrolyte layer. The first electrolytic mixing portion is a mixture of a positive electrode active material and a liquid phase and/or gel phase electrolyte.

Abstract: A device for manufacturing a cell stack having a plurality of cell assemblies. The device comprises several positioning units accommodating the plurality of cell assemblies. The positioning units each comprise a positioning jaw enclosing the plurality of cell assemblies disposed one above the other. The device further comprises a first moving unit moving the positioning unit. The first moving unit comprises a moving plate mounted in a movable manner and an actuator. The positioning units are disposed on the moving plate. The actuator moves the moving plate. The positioning units are arranged such that the individual cell assemblies are centered between the positioning jaws by the movement initiated by the first moving unit. Finally, the device comprises a support, which is decoupled from the movement of the first moving unit, wherein the plurality of cell assemblies and/or plies rest on the support.

Abstract: Disclosed are an electrode including a porous substrate, a membrane-electrode assembly for a fuel cell including the same and a method of manufacturing the same. In the method of manufacturing the membrane-electrode assembly, the amount of a catalyst that is loaded depending on the position is applied in a gradational manner, thus efficiently using the catalyst, thereby reducing costs owing to the use of a decreased amount of the metal catalyst. Further, the membrane-electrode assembly includes the electrode including a porous substrate, thus making it easy to select hot-pressing conditions and increasing processing efficiency. The porous substrate is hydrophobic and the pore size in the electrode is not decreased compared to conventional electrodes, thus reducing flooding and generating various operation regions. The electrode including the porous substrate can minimize electrode loss, thus improving electrode durability.

Abstract: Provided are: a negative electrode material for nonaqueous secondary batteries, which can yield a high-capacity nonaqueous secondary battery having excellent discharge rate characteristics; and a negative electrode for nonaqueous secondary batteries and a nonaqueous secondary battery. Also provided is a nonaqueous secondary battery having excellent charge-discharge efficiency. The negative electrode material for nonaqueous secondary batteries includes carbonaceous particles (A) and silicon oxide particles (B), and satisfies the followings: a) the average particle size (50% cumulative particle size from the smaller particle side; d50) is 3 ?m to 30 ?m, and the 10% cumulative particle size from the smaller particle side (d10) is 0.1 ?m to 10 ?m; b) the ratio (R1=d90/d10) between the 90% cumulative particle size from the smaller particle side (d90) and the d10 is 3 to 20; and c) the ratio (R2=d50/d10) between the d50 and the d10 is 1.7 to 5.