Abstract: Various embodiments are directed to an electrochemical cell having a non-homogeneous anode. The electrochemical cell includes a container, a cathode forming a hollow cylinder within the container, an anode positioned within the hollow cylinder of the cathode, and a separator between the cathode and the anode. The anode defines a characteristic gradient between an interior portion of the anode and the outermost surface of the anode adjacent the separator. The characteristic gradient may be defined as, for example, an average active material particle size within the anode that changes as a function of the radial location within the anode or a surfactant concentration gradient that changes as a function of the radial location within the anode.

Abstract: A flexible secondary battery includes: a first electrode including a first electrode current collector extended longitudinally, a first electrode active material layer formed on the outside of the first electrode current collector, and a first insulation coating layer formed on the outside of the first electrode active material layer; and a second electrode including a second electrode current collector extended longitudinally, a second electrode active material layer formed on the outside of the second electrode current collector, and a second insulation coating layer formed on the outside of the second electrode active material layer, wherein the first electrode and the second electrode are wound in such a manner that they are disposed alternately in contact with each other.

Abstract: The present disclosure relates to a negative electrode material including, as an active material, silicon flakes with a hyperporous structure, represented by the following chemical formula 1: xSi.(1?x)A??(1) where 0.5?x?1.0, and A is an impurity, and includes at least one compound selected from the group consisting of Al2O3, MgO, SiO2, GeO2, Fe2O3, CaO, TiO2, Na2O K2O, CuO, ZnO, NiO, Zr2O3, Cr2O3 and BaO, and a preparing method of the silicon flakes.

Abstract: The present disclosure relates to a separator for a lithium ion secondary battery and a battery comprising the separator. The separator supplements the irreversible capacity of a negative electrode. The separator comprises composite particles (A), and the composite particles (A) include a core portion comprising lithium composite metal oxide particles and a shell portion comprising a carbonaceous material with which the core surface is coated at least partially; the composite particles (A) cause lithium deintercalation at 0.1 V to 2.5 V (vs. Li+/Li); the battery has a positive electrode potential of 3 V or more (vs. Li+/Li); and the battery has a driving voltage of 2.5 V to 4.5 V.

Abstract: A method to prevent or minimize an occurrence of a thermal runaway event in a battery module of an electric vehicle. The method places a gas barrier between a venting space and a wall of each battery cell so that escaped gas from one battery cell does not impinge onto another battery cell.

Abstract: A wound electrode assembly for a non-aqueous electrolyte rechargeable battery, the wound electrode assembly including a positive electrode, a negative electrode, and a porous film between the positive electrode and negative electrode, the positive electrode, the negative electrode, and the porous film each being belt-shaped, and an adhesive layer on the surface of the porous film. The adhesive layer includes a fluorine resin-containing particulate, a binder particle supporting the fluorine resin-containing particulate and having a smaller total volume than that of the fluorine resin-containing particulate, and a heat-resistant filler particle. An average particle diameter of the binder particle is about 100 nm to about 500 nm. An average particle diameter of the heat-resistant filler particle is about 10 nm to about 100 nm.

Abstract: The present invention is to provide a method for producing a catalyst for fuel cells with excellent durability, and a fuel cell comprising a catalyst for fuel cells produced by the production method. Disclosed is a method for producing a catalyst for fuel cells, the catalyst comprising fine catalyst particles, each of which comprises a palladium-containing core particle and a platinum-containing outermost layer covering the core particle, and carbon supports on which the fine catalyst particles are supported, wherein the method comprises the steps of: preparing carbon supports on which palladium-containing particles are supported; fining the carbon supports; and covering the palladium-containing particles with a platinum-containing outermost layer after the fining step.

Abstract: A battery pack is provided which includes a battery, a circuit board equipped with load feed lines, bus bars connecting with the battery and the circuit board, first and second switches, and third to sixth switches. The first and second switches are disposed in a housing which is higher in capacity of heat dissipation than the circuit board. The third to sixth switches are disposed on the circuit board. The first and second switches are larger in amount of electrical current flowing therethrough than the third to sixth switches on time average. This enables the size of the battery pack to be reduced without sacrificing the dissipation of heat from the switches.

Abstract: An electricity storage device includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and an electrolyte that includes an organic crystal layer including a layered structure and an organic solvent introduced into the organic crystal layer and that is interposed between the positive electrode and the negative electrode to conduct alkali metal ions. The layered structure includes an organic backbone layer containing an aromatic dicarboxylic acid anion having an aromatic ring structure, and an alkali metal element layer containing an alkali metal element that is coordinated with oxygen contained in a carboxylic acid of the organic backbone layer to form a framework. At least one of the positive electrode and the negative electrode adsorbs and desorbs the ions to store and release electric charge.

Abstract: The electrolyte according to the present disclosure is an electrolyte that conducts alkali metal ions and is used for producing an energy storage device. The electrolyte includes an organic crystal layer including a layered structure, the layered structure including an organic skeletal layer including aromatic dicarboxylic acid anions having an aromatic ring structure and an alkali metal element layer including an alkali metal element to which oxygen included in carboxylic acid anions of the organic skeletal layer are coordinated to form a skeleton, and an organic solvent charged in the organic crystal layer.

Abstract: Provided is a heat dissipation cartridge, and a battery pack for an electric vehicle using the heat dissipation cartridge. The heat dissipation cartridge comprises a frame structure including a receiving through-hole formed in a central region so as to receive a pair of batteries and a seating part formed on a side wall of the receiving through-hole for seating the pair of batteries, wherein the frame structure is formed of heat-dissipating plastic and in which an aluminum frame is insert injection-molded.

Abstract: Provided is an energy storage apparatus including: a neighboring member disposed adjacently to an energy storage device; and a terminal member disposed adjacently to the neighboring member on a side opposite to the energy storage device, wherein the terminal member has: a body extending along the neighboring member; and a bolt member having a head portion and a shaft portion extending from the head portion, and mounted on the body in a state where the shaft portion is made to pass through the body from a neighboring member side, the neighboring member has a protruding portion protruding in an axial direction of the shaft portion, and the protruding portion is inserted into the body at a position where at least a portion of the protruding portion overlaps with a projection region of the shaft portion in the axial direction.

Abstract: A vehicle battery that includes a partially hollow battery shell, shock-absorbing material, and a mounting base. The battery shell has an upper section and a stepped-in lower section, the lower section having a sidewall and a floor. The shock-absorbing material is attached to the sidewall of the lower section of the battery shell and has a lower edge that extends below the floor of the lower section. The mounting base is attached to the lower edge of the shock-absorbing material and is spaced from the floor of the lower section of the battery shell to isolate the battery shell from a vehicle surface on which it is supported.

Abstract: In a battery pack, circuit board and thin cells are insert-molded in resin mold portion formed by a die, and are fixed to fixed positions. At least one of thin cells is disposed at a position where circuit board faces terminal surface. Terminal surfaces of thin cells and circuit board, which are interconnected, are buried in resin mold portion, thin cells are disposed on the same plane, and circuit board is integrally connected and fixed to the thin cells so as to be parallel with both surfaces of the thin cells. Thus, the thin cells are strongly interconnected via the resin mold portion, and all thin cells are disposed on the same plane without warpage.

Abstract: A main object of the present disclosure is to provide a cathode active material used for a fluoride ion battery, the cathode active material comprising: a first active material having a composition represented by Pb2?xCu1+xF6, wherein 0?x<2; and a second active material containing a Bi element and a F element.

Abstract: The electrochemical cell stack includes an electrochemical cell disposed between a first separator and a second separator. The electrochemical cell includes an anode, a cathode, and a solid electrolyte layer disposed between the anode and the cathode. The solid electrolyte layer, containing a zirconia-based material as a main component, has a downstream part and an upstream part. The downstream part is positioned on a downstream side in a flow direction of a fuel gas in a fuel flow passage between the anode and the first separator. The upstream part is positioned on an upstream side in the flow direction. The downstream part includes a first region within 3 ?m from an anode side surface, and a second region between the first region and the cathode. An intensity ratio of tetragonal zirconia to cubic zirconia in a Raman spectrum of the first region is greater than that of the second region.

Abstract: An electrochemical cell stack includes an electrochemical cell disposed between a first separator and a second separator. The electrochemical cell includes an anode, a cathode, and a solid electrolyte layer disposed between the anode and the cathode. The solid electrolyte layer, containing a zirconia-based material as a main component, has an upstream part and a downstream part. The upstream part is positioned on the upstream side in the flow direction of a fuel gas in the fuel flow passage between the anode and the first separator. The downstream part is positioned on the downstream side in the flow direction. The upstream part includes a first region within 3 ?m from the anode side surface, and a second region provided on the first region. An intensity ratio of tetragonal zirconia to cubic zirconia in a Raman spectrum of the first region is greater than that of the second region.

Abstract: An object of the present invention is to provide a nonaqueous electrolyte secondary battery that can attain a smaller increase in direct current resistance after charge discharge cycles. An aspect of the invention resides in a nonaqueous electrolyte secondary battery wherein a positive electrode active material includes a secondary particle formed by aggregation of primary particles of a lithium transition metal oxide, and a secondary particle formed by aggregation of primary particles of a rare earth compound. On a surface of the secondary particle of the lithium transition metal oxide, the secondary particle of the rare earth compound is attached to a recess formed between adjacent primary particles of the lithium transition metal oxide in such a manner that the secondary particle of the rare earth compound is attached to each of the primary particles forming the recess. The lithium transition metal oxide includes magnesium dissolved therein.

Abstract: A fuel cell stack array is disclosed. The fuel cell stack array includes a first fuel cell stack having a first upper frame structure formed with a first through-hole for exposing a first topmost connector layer positioned at top of a first single cell stack structure, a second fuel cell stack having a second upper frame structure formed with a second through-hole for exposing a second topmost connector layer positioned at top of a second single cell stack structure, and a first current collector electrically connecting the first and second topmost connector layers via the first and second through-holes.

Abstract: A conductor includes a connection conductor that is directly connected to at least one of a plurality of electrode terminals of an electrode terminal group of a plurality of battery cells arranged in a same direction; a linear conductor that is connected to a battery monitoring unit configured to monitor a battery state of the battery cells; a fuse element that is indirectly connected between the connection conductor and the linear conductor, and that melts when overcurrent flows between the connection conductor and the linear conductor; and a resin mold member that has an insulation property and that includes the fuse element, a part of the connection conductor, and a part of a relay terminal.