Abstract: In a battery module in which battery cells are inserted and adhered to battery retention sections each having a hole and formed on a holder, an objective is to provide a technology for sufficiently filling the gap between the battery retention section of the holder and the battery cell with an adhesive. A deformable porous layer 40 is formed on an outer circumferential surface 11 of each battery cell 1, and an adhesion layer 4 is formed by impregnating the porous layer 40 with an adhesive. Alternatively, the deformable porous layer 40 is formed on the outer circumferential surface 11 of each of the battery cells 1, and an adhesive layer 46 including an adhesive is formed on the back side in an insertion direction with respect to the porous layer 40.

Abstract: Provided are separators for use in batteries and capacitors comprising (a) at least 50% by weight of an aluminum oxide and (b) an organic polymer, wherein the aluminum oxide is surface modified by treatment with an organic acid to form a modified aluminum oxide, and wherein the treatment provides dispersibility of the aluminum oxide in aprotic solvents such as N-methyl pyrrolidone. Preferably, the organic acid is a sulfonic acid, such as p-toluenesulfonic acid. Also preferably, the organic polymer is a fluorinated polymer, such as polyvinylidene fluoride. Also provided are electrochemical cells and capacitors comprising such separators.

Abstract: A secondary battery includes a retainer and/or an insulation plate having bilateral symmetry, thereby improving work efficiency and productivity. In one or more exemplary embodiments, the secondary battery includes: an electrode assembly; a case receiving the electrode assembly; a cap plate coupled to a top portion of the case and sealing the case; a current collector including a terminal connector positioned between the electrode assembly and the cap plate, and an electrode connector bent from an end of the terminal connector, positioned between the electrode assembly and the case, and having a coupling hole formed therein; an insulation plate positioned on the electrode assembly and coupled to the terminal connector; and a retainer coupled to the electrode connector and including a fixing hook engaged with the coupling hole.

Abstract: A fuel cell stack (100) includes a first supporting substrate (5a), a first power generation element, a second power generation element, a second supporting substrate (5b) and a communicating member (3). The first supporting substrate (5a) includes a first substrate main portion, a first dense layer, and a first gas flow passage. The first dense layer covers the first substrate main portion. The second supporting substrate (5b) includes a second substrate main portion, a second dense layer, and a second gas flow passage. The second dense layer covers the second substrate main portion. The communicating member (3) extends between a distal end portion (502a) of the first supporting substrate (5a) and a distal end portion (502b) of the second supporting substrate (5b) and communicates between the first gas flow passage and the second gas flow passage.

Abstract: A porous separator for secondary batteries is formed of a porous film, and has a first layered region having an average pore diameter of 100 nm or more and 500 nm or less, and a second layered region having a larger average pore diameter than the first layered region. The first layered region is positioned in one outermost surface of the porous film. Both the first layered region and the second layered region may be positioned as outermost surfaces of the porous film.

Abstract: An electrical energy source for an electrically drivable tool containing: a main body, which extends along a longitudinal axis, having a first end and a second end lying opposite the first end with respect to the longitudinal axis; at least one first electrical terminal, which extends away from the first end and has a first diameter; and at least one second electrical terminal, which extends away from the second end and has a second diameter. A voltage is present between the first and second terminals. The first diameter is different from the second diameter. The first electrical terminal extends away from the first end, and the second electrical terminal extends away from the second end of the main body. A tool kit having at least one electrically drivable tool and having at least one electrical energy source and a method for inserting an energy source into an electrically drivable tool.

Abstract: The main purpose of the invention is an assembly and electrical connection part (2) of at least two electrical energy storage cells (1), that will be included in an electric assembly module (20) of an energy storage system, characterised in that the part (2) comprises first (3a) and second (3b) means of connecting the part (2) to said at least two electrical energy storage cells (1), the first (3a) and second (3b) connection means being configured to enable the passage of connection pins (4) to assemble and electrically connect the part (2) to each of said at least two electrical energy storage cells (1).

Abstract: Provided is an electrode for energy storage devices, which is provided with a collector substrate, an undercoat layer that is formed on at least one surface of the collector substrate and contains carbon nanotubes, and an active material layer that is formed on the surface of the undercoat layer, and wherein the active material layer does not contain a conductive assistant.

Abstract: Provided is an electrode for energy storage devices, which is provided with: a collector substrate; an undercoat layer that is formed on at least one surface of the collector substrate and contains carbon nanotubes; and an active material layer that is formed on the surface of the undercoat layer and contains an active material which contains a titanium-containing oxide.

Abstract: A secondary battery capable of achieving a higher capacity than a related art jelly-rolled electrode assembly is provided, the secondary battery including an electrode assembly including a first electrode plate and a second electrode plate, each having an uncoated portion protruding from a respective one of laterally opposite sides of the electrode assembly; a current collector at a region corresponding to the uncoated portion of the electrode assembly; and a ductile sub-tab electrically connecting the uncoated portion of the electrode assembly to the current collector, wherein the uncoated portion and the sub-tab are connected to each other and bent together in the same direction.

Abstract: A stainless steel sheet for fuel cell separators including a substrate made of stainless steel sheet, and low-electrical-resistivity metal particles, where the substrate has a textured structure formed on a surface thereof with the average interval between the projected parts of the textured structure being 10 nm or more and 300 nm or less, the low-electrical-resistivity metal particles have an average particle size of 50 nm to 1.0 ?m, the low-electrical-resistivity metal particles are attached to the surface of the substrate having the textured structure at a density of 1.0 particle or more for 1 ?m2, and a ratio of the average particle size of the low-electrical-resistivity metal particles to the average interval between the projected parts is 1.0 to 15.0.

Abstract: A battery sensor data transmission unit is described as including a data transmission unit, which is designed to output a sensor signal, which represents a physical variable in or at the battery cell to an evaluation device, using a battery housing wall and/or a wall of a battery cell as the transmission medium.

Abstract: An improved seawater electrochemical cell with a consumable anode and an oxygen reducing cathode is provided with a reduced distance between anode and cathode surfaces. The reduced distance does not impede the ingress of oxygen dissolved in water and the egress of reaction products from the cell and causes an increase in the volumetric energy and power density of such dissolved oxygen seawater cells.

Abstract: A fuel cell stack is provided that includes a cell laminate formed by stacking a plurality of unit cells in a predetermined stacking direction and a surface pressure adjustment unit stacked on a first surface of the cell laminate. The surface pressure adjustment unit adjusts a surface pressure applied to the unit cells in the stacking direction. The unit includes a first electromagnet and a second electromagnet installed between one surface of the cell laminate and the first electromagnet to pressurize the unit cells. A controller adjusts pressurizing force applied to the unit cells by the second electromagnet by selectively applying a current to the first and second electromagnets so that attractive force or repulsive forces acts between the first and second electromagnets.

Abstract: A negative electrode material applied to a lithium battery or a sodium battery is provided. The negative electrode material is composed of a first chemical element, a second chemical element and a third chemical element with an atomic ratio of x, 1?x, and 2, wherein 0<x<1, the first chemical element is selected from the group consisting of molybdenum (Mo), chromium (Cr), tungsten (W), manganese (Mn), technetium (Tc) and rhenium (Re), the second chemical element is selected from the group consisting of Mo, Cr and W, the third chemical element is selected from the group consisting of sulfur (S), selenium (Se) and tellurium (Te), and the first chemical element is different from the second chemical element.

Abstract: A power storage device packaging material has a structure in which at least a substrate layer, a first adhesive layer, a metal foil layer having an anticorrosion treatment layer on either side or both sides thereof, and a sealant layer are laminated in this order. In the packaging material, the sealant layer is formed of a resin composition containing polyolefin, and the sealant layer has at least one crystallization temperature peak in a temperature range of about 100° C. to about 120° C.

Abstract: A membrane electrode assembly includes a polymer electrolyte membrane; a first electrode layer disposed on an upper surface of the polymer electrolyte membrane; and a second electrode layer disposed on a lower surface of the polymer electrolyte membrane. At least one end of the polymer electrolyte membrane is bent upward along a side of the first electrode layer and extends to an upper surface of the first electrode layer or is bent downward along a side of the second electrode layer and extends to a lower surface of the second electrode layer.

Abstract: A fast charge system 20 including a fast charge composite 60 and a secondary battery 22 enables the secondary battery 22 to be charged in less time than is possible with traditional charging means. The fast charge composite 60 includes a separator 62 of cellulose wetted with a second electrolyte 64 that contains third ions 94 having a positive charge and fourth ions 96 having a negative charge and contacting the adjacent electrode 32, 46 of the secondary battery 22. A fast charge layer 30 of thermally expanded graphite is disposed adjacent and parallel to the separator 62. A second electrical power PFC, which may be greater than a maximum charging power PMAX transferred through traditional charging, is transferred as a function of a second voltage V2 applied between the fast charge layer 30 and the battery lead 34, 50 of the adjacent electrode 32, 46, which causes the third ions 94 and the fourth ions 96 to migrate through the separator 62 to cause the secondary battery 22 to become charged.

Abstract: In a battery unit 10 in which plural high-voltage batteries 31a to 33a are accommodated in a battery case 50, the battery case 50 includes: a bottom plate 51A on which the batteries 31a to 33a are mounted; and a cover 52 covering the batteries 31a to 33a from above. The bottom plate 51A includes a tray 54 having a plate shape, lengthwise reinforcing members 55, and brackets 53. The lengthwise reinforcing members 55 are disposed so as to connect at least adjacent brackets 53. The lengthwise reinforcing members 55 and the brackets 53 are disposed in a lattice shape with the tray 54 interposed therebetween. The batteries 31a to 33a are fixed to the lengthwise reinforcing members 55 such that a longitudinal direction thereof faces the vehicle width direction. The battery case 50 is fixed under a floor of a vehicle V by the brackets 53.

Abstract: A positive electrode active material for a secondary battery is provided. The positive electrode active material is a secondary particle including primary particles of a lithium composite metal oxide that contains nickel, cobalt, and manganese, wherein the manganese content in the lithium composite metal oxide exceeds 50 at % with respect to the sum content of nickel, cobalt, and manganese, and the primary particle is doped with one or two or more dopant elements selected from the group consisting of Nb, Sn, Mo, and Ta, the dopant element content being higher in a surface region of the primary particle than in the interior of the primary particle, and the dopant element concentration being 500 to 5,000 ppm with respect to the total weight of the positive electrode active material. In addition, a lithium secondary battery which includes the positive electrode active material is provided.