Abstract: The present invention addresses the problem of providing: a porous carbon structure that has a high micropore volume and can be self-contained; a manufacturing method therefor; a positive electrode material using the same; and a battery (particularly an air battery) using the same. The present invention is a porous carbon structure that is for a positive electrode for an air battery and has voids and a skeleton formed by incorporating carbon, the porous carbon structure satisfying all of the following conditions (a) to (d). (a) The t-plot external specific surface area is within the range of 300 m2/g to 1600 m2/g; (b) the total volume of micropores having a diameter of 1 nm to 200 nm is within the range of 1.2 cm3/g to 7.0 cm3/g; (c) the total volume of micropores having a diameter of 1 nm to 1000 nm is within the range of 2.3 cm3/g to 10.0 cm3/g; and (d) the overall porosity is within the range of 80% to 99%.

Abstract: A method and electrode assembly for evaluating performance of an electrode uses a negative electrode on which a negative electrode active material is applied to both surfaces of a negative electrode collector; a positive electrode on which a positive electrode active material is applied to both surfaces of a positive electrode collector and which is stacked with the negative electrode; two separators stacked between the negative electrode and the positive electrode; a reference electrode stacked between the two separators; and a second negative electrode stacked between the separator, which is relatively close to the negative electrode, of the two separators and the negative electrode.

Abstract: Provided is a negative electrode for a secondary battery including: a current collector, and a negative electrode active material layer formed on the current collector and containing a first negative electrode active material having a large particle size and a second negative electrode active material having a small particle size, wherein the second negative electrode active material is contained in an amount of 10% by weight or less based on the total weight of the negative electrode active material, and the following Relational Equation 1 is satisfied: [Relational Equation 1] 0.4<D2/D1<0.7; wherein D1 and D2 are the particle sizes (D50, ?m) of the first and second negative electrode active materials, respectively.

Abstract: Provided is a positive electrode for a lithium ion secondary battery that suppresses both a decrease in discharge capacity and an increase in internal resistance due to charging and discharging. The positive electrode for the lithium ion secondary battery includes a positive-electrode current collector and a layered structure provided on the positive-electrode current collector, in which the outermost layer of the layered structure contains a first positive-electrode active material represented by Li1+XMAO2 wherein X satisfies ?0.15?X?0.15, MA represents an element group including Ni, Co, and Mn, and the innermost layer of the layered structure contains a second positive-electrode active material represented by Li1+YMBO2 wherein Y satisfies ?0.15?Y?0.15, and MB represents an element group including Ni, Co, and at least one of Mn or Al.

Abstract: A lithium secondary battery separator with excellent adhesive strength and air permeability is disclosed. The lithium secondary battery separator includes a porous polymer substrate; and a porous coating layer containing inorganic particles and a binder. When the binder is present as a binder specimen with a thickness of 0.4 mm after pressurization at 190° C., the binder specimen comprises a first binder having a tan ? peak at 15° C. to 27.6° C. and a second binder having a tan ? peak at 8° C. to 20.2° C., as measured by dynamic mechanical analysis (DMA).

Abstract: An electrochemical cell module includes a plurality of electrochemical cells stacked on one another and each including an electricity generator and a casing, and a housing accommodating the plurality of electrochemical cells. The casing includes a peripheral portion without overlapping the electricity generator as viewed in the stacking direction. The peripheral portion is bent and has its main surface in contact with an inner side surface of the housing.

Abstract: A main object of the present disclosure is to provide an all solid state battery capable of decreasing the heating value. The present disclosure achieves the object by providing an all solid state battery comprising a cathode layer, an anode layer, and a solid electrolyte layer formed between the cathode layer and the anode layer, and the cathode layer includes a complex cathode active material containing a spinel type active material, and a lithium oxide layer coating a surface of the spinel type active material; and a halide solid electrolyte containing an X element wherein X is a halogen, as a main component of an anion, and the anode layer includes a Si based anode active material.

Abstract: Provided is a negative electrode for a secondary battery including: a current collector; and a negative electrode active material layer including a negative electrode active material, formed on the current collector, with the negative electrode satisfying Relation 1: 3.0<?*DP<7.2 ??[Relation 1] with ? a tortuosity of the negative electrode, and DP a pellet density (g/cm3) of the negative electrode active material, measured by pressing the negative electrode active material at 8 kN/cm2. Also provided is a secondary battery including the same.

Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material particle. The positive electrode active material particle includes a layered rock-salt lithium composite oxide and a spinel metal oxide. The positive electrode active material particle has therein the spinel metal oxide provided on at least a surface of a particle including the layered rock-salt lithium composite oxide. The electrolytic solution includes a chain carboxylic acid ester and a cyclic ether.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode. The positive electrode includes a positive electrode active material layer. The positive electrode active material layer includes a first layer and a second layer. The first layer includes a first particle group. The second layer includes a mixture of a second particle group and a third particle group. The first particle group consists of a plurality of first positive electrode active material particles. The second particle group consists of a plurality of second positive electrode active material particles. The third particle group consists of a plurality of third positive electrode active material particles. Each of the first positive electrode active material particles and the third positive electrode active material particles independently includes 1 to 10 single-particles. Each of the second positive electrode active material particles includes secondary particles obtained by aggregation of 50 or more primary particles.

Abstract: A gas venting device, and a battery module and a battery pack comprising same has a gradually reducing the cross-sectional area of a flow path in a gas discharge direction to create so that a greater flow rate of gas can be discharged even when a venting disc having the same area is used.

Abstract: One aspect of the present invention is an energy storage device including: an electrode having a mixture layer containing active material particles; and a separator having an inorganic layer facing the mixture layer, the inorganic layer containing inorganic particles, in which the active material particles have two or more peaks in volume-based particle size distribution, and an average particle diameter of the inorganic particles is 1.2 ?m or less.

Abstract: Provided is a negative electrode active material which is excellent in capacity, capacity retention ratio, and a coulombic efficiency when charging/discharging is repeated. The chemical composition of the alloy particles of the negative electrode active material of the present disclosure includes 0.50 to 3.00 mass % of oxygen, and alloy elements containing Sn: 13.0 to 40.0 at % and Si: 6.0 to 40.0 at %, with the balance being Cu and impurities. The structure of the alloy particles includes: one or more types selected from the group consisting of a phase having a D03 structure, and a ? phase; one or more types selected from the group consisting of an ? phase and an ?? phase; and a SiOx phase (x=0.50 to 1.70). The SiOx phase (x=0.50 to 1.70) has a volume fraction of 5.0 to 60.0% and the ?? phase has a volume fraction of 0 to 60.0%.

Abstract: A positive electrode material and a positive electrode and a lithium secondary battery including the same are provided. The positive electrode material having a bimodal particle size distribution which includes large-diameter particles and small-diameter particles having different average particle diameters (D50), wherein the large-diameter particles are lithium composite transition metal oxide having a nickel content of 80 atm % or more in all transition metals thereof, and the small-diameter particles are a lithium composite transition metal oxide including nickel, cobalt, and aluminum, having a nickel content of 80 atm % to 85 atm % in all transition metals, and having an atomic ratio of the cobalt to the aluminum (Co/Al) of 1.5 to 5.

Abstract: In order to overcome the problem of low ionic conductivity in the existing polymer solid electrolyte, the disclosure provides a solid electrolyte, comprising a polymer, a lithium salt and an additive, the additive is selected from an aprotic organic solvent with a carbon number lower than 10 and a relative dielectric constant higher than 3.6; the mass content of the lithium salt is 30%˜90%, and the mass content of the additive is 0.01%˜2%, based on the total mass of the solid electrolyte being 100%. Further provided is a polymer lithium ion battery comprising the solid electrolyte. According to the solid electrolyte of the disclosure, a trace amount of small molecule aprotic organic solvent with high dielectric constant is introduced as an additive, which can inhibit crystallization of the solid electrolyte, promote transmission of lithium ions in the electrolyte, and improve the ionic conductivity of the solid electrolyte at room temperature.

Abstract: A battery includes at least one row of energy storage cells. The row of energy storage cells has a longitudinal extension direction with an upper side and lateral sides being respectively defined by a series of upper and lateral faces of the energy storage cells and of spaces separating the energy storage cells in the longitudinal extension direction. The battery also includes a dielectric fluid circuit with one or more spray orifices. The spray orifices are flush with the upper side of the row of energy storage cells and are located facing a lateral side of the row such that the dielectric fluid circuit leaves the upper side of the row free.

Abstract: A bipolar capacitor assisted battery includes a bipolar capacitor including a first capacitor, and a second capacitor. The second capacitor is connected in series with the first capacitor. A lithium ion battery is connected in parallel to the bipolar capacitor.

Abstract: A non-aqueous electrolyte secondary battery disclosed herein includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive and negative electrodes each include a current collector and a mixture layer formed on the surface of the current collector. The current collector includes a resin layer and metallic foils provided on both surfaces of the resin layer in at least one of the positive and negative electrodes. A surface of the metallic foils on which the mixture layer is formed is roughened. Furthermore, the average X (?m) of the thicknesses at the thinnest parts and the average Y (?m) of the thicknesses at the thickest parts of the metallic foil determined based on a plurality of obtained sectional SEM images in a stacked direction of the resin layer and the metallic foils satisfy the following relationship: 0.1 ?m<X<4 ?m, and 1.2?Y/X.

Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2: wherein X is a fluoro group, a chloro group, a bromo group, or an iodo group, and A is a C1 to C10 alkylene group or (—C2H4—O—C2H4—)m, wherein m is an integer of 1 to 10.

Abstract: A main object of the present disclosure is to provide an all solid state battery capable of decreasing the heating value. The present disclosure achieves the object by providing an all solid state battery comprising a cathode layer, an anode layer, and a solid electrolyte layer formed between the cathode layer and the anode layer, and the cathode layer includes a complex cathode active material containing a spinel type active material, and a lithium oxide layer coating a surface of the spinel type active material; and a halide solid electrolyte containing an X element wherein X is a halogen, as a main component of an anion, and the anode layer includes a Si based anode active material.