Abstract: A cathode material used in an anode and a cathode contains (Co, Fe)3O4 and a perovskite type oxide that is expressed by the general formula ABO3 and includes at least one of La and Sr at the A site. A content ratio of (Co, Fe)3O4 in the cathode material is at least 0.23 wt % and no more than 8.6 wt %.

Abstract: A cation-conducting polymer has two or more repeating units of the following formula Owing to the cation-conducting polymer has good physicochemical properties, hydrolytic stability and conductivity, a film formed by coating the liquid cation-conducting polymer can be used as proton exchange membrane to apply in fuel cell system.

Abstract: Provided is a lithium secondary battery containing a cathode active material capable of preventing decreases in power and cycle life occurring at the time of adding a sulfur based additive used in order to improve high-temperature storage characteristics to an electrolyte.

Abstract: Provided is a positive electrode material for a nonaqueous electrolyte secondary battery that excels in thermal stability. A positive electrode material for a nonaqueous electrolyte secondary battery, which is provided by the present invention, includes positive electrode active material particles that can reversibly store and release a charge carrier, and a metal hydroxide. Each of the positive electrode active material particles has inside thereof a void and the metal hydroxide is disposed inside the void.

Abstract: A negative electrode material for a lithium ion secondary battery including carbon over a part or a whole of a surface of an oxide of silicon, in which the content of the carbon is from 0.5 mass-% to less than 5 mass-%.

Abstract: Provided is an active material composite powder with which resistance can be reduced, and a method for manufacturing the active material composite powder. The active material composite powder includes an active material and lithium niobate attached onto the surface of the active material, and its BET specific surface area S [m2/g] is 0.93<S<1.44, and the method for manufacturing an active material composite powder includes a spraying and drying step of spraying a solution including lithium and a peroxo complex of niobium onto the active material and at the same time drying the solution, and a heating treatment step of carrying out a heating treatment after the spraying and drying step, wherein the temperature of the heating treatment is higher than 123° C. and lower than 350° C.

Abstract: An assembled cell is formed by laminating a plurality of rectangular secondary batteries in a thickness direction and interposing a spacer between the rectangular secondary batteries. The rectangular secondary battery includes an electrode group in which positive and negative electrodes are wound, and the electrode group is housed in the battery container formed in a flat box shape. The spacer includes a contact part which contacts with a width direction end region of a wide side surface of the battery container, a facing part which faces a width direction intermediate region of the wide side surface, and an inclined surface which is adjacent to both ends of the facing part in a width direction of the wide side surface. The inclined surface is inclined such that a thickness of the spacer becomes asymptotically smaller in a direction toward the width direction intermediate region from the width direction end region.

Abstract: A vehicular battery module that is capable of securing the stability of a vehicle by inducing self-discharge of a battery cell when the battery is overcharged includes: a plurality of stacked battery cells, each of which includes a battery pouch and electrode terminals extending outwards from the battery pouch, and a variable-resistor disposed between the electrode terminals of the one-side battery pouch and the other-side battery pouch so as to electrically connect the two electrode terminals to each other.

Abstract: Provided is an active material composite powder with which resistance can be reduced, and a method for manufacturing the active material composite powder. The active material composite powder includes an active material and lithium niobate attached onto the surface of the active material, and its BET specific surface area S [m2/g] is 0.93<S<1.44, and the method for manufacturing an active material composite powder includes a spraying and drying step of spraying a solution including lithium and a peroxo complex of niobium onto the active material and at the same time drying the solution, and a heating treatment step of carrying out a heating treatment after the spraying and drying step, wherein the temperature of the heating treatment is higher than 123° C. and lower than 350° C.

Abstract: A device (200) for bracing a battery module (100) which comprises a multiplicity of battery cells (101, . . . 10n), characterized by: a first clamping plate (201) for the positioning of the battery cells (101, . . . 10n), a cooler (300) which is between the first clamping plate (201) and the battery cells (101, . . . 10n), and a brace (205, 206) which is configured so as to brace the first clamping plate (201, 202) and the battery cells (101, . . . 10n) against one another.

Abstract: A plurality of battery cells are connected by a busbar. Electrode terminals of the battery cells each include a protruding portion and a welding surface around the protruding portion. The busbar includes a welding plate portion being in surface-contact with the welding surface and having a cut-away portion for guiding the protruding portion, and an exposure gap that exposes the welding surface between the inner side of the cut-away portion and the protruding portion. The busbar is welded to the welding surface in a predetermined welding width (H) by both of a fillet weld part and a penetration welding portion such that the inner edge of the cut-away portion as the fillet weld part is welded to the welding surface, and the boundary between the busbar and the welding surface is welded by the penetration welding portion.

Abstract: The present invention relates to a composition for a gel polymer electrolyte and a gel polymer electrolyte prepared using the same, and specifically provides a composition for a gel polymer electrolyte including a lithium salt, an organic solvent, and a polymer A having an epoxy group represented by Formula 1, and a polymer B having an amine group and a cyanide group represented by Formula 2, wherein the polymers A and B are included in an amount of 1 to 20 wt % based on the total weight of the composition for a gel polymer electrolyte, and wherein a gel polymer electrolyte for a secondary battery can be prepared that includes a polymer network formed by combining the polymer A having an epoxy group represented by Formula 1 and the polymer B having an amine group and a cyanide group represented by Formula 2 in a three-dimensional structure.

Abstract: Synthesis and electrochemical properties of a new class of polymer electrolytes based on polar polysiloxane polymers is described. Unlike ethylene oxide-based polymers, these materials are oxidatively stable up to at least 4.2 V, the operating voltage of high energy cells that use cathode materials such as lithium nickel cobalt aluminum oxide (NCA) and lithium nickel cobalt manganese oxide (NCM). Use of these polymers electrolytes as an alternative to PEO in solid-state lithium batteries is described.

Abstract: A secondary battery with an exterior body having a novel sealing structure, and a structure of a sealing portion that relaxes a stress of deformation are provided. The secondary battery includes a positive electrode, a negative electrode, an electrolyte solution, and an exterior body enclosing at least part of the positive electrode, at least part of the negative electrode, and the electrolyte solution. The exterior body includes a first region having a shape with a curve, a shape with a wavy line, a shape with an arc, or a shape with a plurality of inflection points, and a second region having the same shape as the first region. The first region is in contact with the second region. Alternatively, the first region has a shape without a straight line. The secondary battery may be flexible, and the exterior body in a region having flexibility may include the first region.

Abstract: Provided is an active material composite powder with which resistance can be reduced, and a method for manufacturing the active material composite powder. The active material composite powder includes an active material and lithium niobate attached onto the surface of the active material, and its BET specific surface area S [m2/g] is 0.93<S<1.44, and the method for manufacturing an active material composite powder includes a spraying and drying step of spraying a solution including lithium and a peroxo complex of niobium onto the active material and at the same time drying the solution, and a heating treatment step of carrying out a heating treatment after the spraying and drying step, wherein the temperature of the heating treatment is higher than 123° C. and lower than 350° C.

Abstract: Solid oxide fuel cells (SOFCs) are provided. A SOFC may comprise a cathode, an anode, and a solid oxide electrolyte between the anode and the cathode, wherein the cathode comprises a perovskite compound. The perovskite compound may be characterized by a log k* value which is less negative than about ?6.0 cm/s; an energy above the convex hull of less than about 40 meV/(formula unit); a bandgap of about 0 and a charge transfer gap of about 0.

Abstract: A battery pack is disclosed. In one aspect, the battery pack includes first and second cell groups each including one or more cells, a circuit board electrically connected to the first and second cell groups and a connector provided in the circuit board and including a plurality of connector terminals. The connector terminals include first and second connector terminals respectively electrically connected to first and second electrodes of the first cell group. The connector terminals include first and second connector terminals respectively electrically connected to first and second electrodes of the second cell group. The first and third connector terminals are detachably in contact with each other, wherein the second and fourth connector terminals are detachably in contact with each other. According to some embodiments, it is possible to simply physically release a parallel connection of a plurality of cells or a plurality of cell groups.

Abstract: A fuel cell purging method is provided to effectively prevent fuel cell deterioration and degradation of durability of the fuel cell by performing hydrogen purging at a point in time at which negative pressure of an anode peaks after a fuel cell vehicle is stopped. The fuel cell purging method includes stopping the driving of a fuel cell vehicle and continuously measuring pressure of an anode of a fuel cell after the fuel cell vehicle is stopped. Additionally, hydrogen is supplied to the anode when the measured pressure of the anode reaches a negative pressure peak time point.

Abstract: A method according to an exemplary aspect of the present disclosure includes, among other things, compressing at least one battery module to a desired dimension prior to installing the battery module into an array. Another method according to an exemplary aspect of the present disclosure includes, among other things, inducing a residual stress into a battery module to compress the battery module to a desired dimension prior to being installed in an array. An apparatus, according to an exemplary aspect of the present disclosure includes, among other things, a compression device configured to temporarily compress at least one battery module to a desired dimension prior to installing the battery module into an array.

Abstract: A bus bar module includes a plurality of bus bars that connects a plurality of unit cells of a battery assembly constituted by the unit cells, a plurality of electric wires that are welded to surfaces of the bus bars, and an electric wire router that is made of insulating resin and includes bus bar reception portions provided side by side in an array direction of the unit cells, wherein each of the bus bar reception portions includes an opening portion that is formed to be opposed to a back surface of a corresponding one of the bus bars in accordance with a connection portion with a conductor of a corresponding one of the electric wires, and an electric wire tip holding portion that holds the vicinity of a welding portion of the conductor.