Abstract: According to one embodiment, there is provided an electrode for battery which includes a current collector and an active material layer provided on the current collector. The active material layer contains particles of a lithium titanate compound having a spinel structure and a basic polymer. Here, the basic polymer is coating at least a part of the surface of the particles of the lithium titanate compound.

Abstract: A battery with improved properties is provided. The battery has a cathode material prepared by the complexometric formulation methodology comprising MnXp wherein: Mj is at least one positive ion selected from the group consisting of alkali metals, alkaline earth metals and transition metals and n represents the moles of said positive ion per mole of said MjXp; and Xp is a negative anion or polyanion selected from Groups IIIA, IV A, VA, VIA and VIIA and may be one or more anion or polyanion and p representing the moles of said negative ion per moles of said MjXp. The battery has a discharge capacity at the 1000th discharge cycle of at least 120 mAh/g at room temperature at a discharge rate of 1 C when discharged from at least 4.6 volts to at least 2.0 volts.

Abstract: According to one embodiment, an active material is provided. The active material includes orthorhombic system oxide represented by the following formula: LixM1M22O6. In this formula, 0?x?5, M1 is at least one selected from the group consisting of Fe and Mn, and M2 is at least one selected from the group consisting of Nb, Ta and V.

Abstract: A rechargeable battery whose ohmic resistance is modulated according to temperature is disclosed.

Abstract: A secondary battery includes an electrode assembly comprising a first electrode plate, a second electrode plate and a separator located between the first electrode plate and the second electrode plate; a case accommodating the electrode assembly; a cap plate sealing the case; a first collector plate comprising a first vertical part electrically connected to the first electrode plate, a first horizontal part bent from the first vertical part and extending between the electrode assembly and the cap plate, and a first protrusion protruding from the first horizontal part; and a first electrode terminal electrically connected to the first collector plate and extending through the cap plate, wherein the first electrode terminal has a coupling opening engaged with the first protrusion.

Abstract: There is provided an electrode assembly having steps including: a first electrode stair including at least one first electrode unit; and a second electrode stair including at least one second electrode unit having an area different from that of the first electrode unit, wherein the first electrode stair and the second electrode stair are stacked to be adjacent, separated by at least one separator as a boundary therebetween and including one or more electrode laminates having steps formed by a difference between areas of the first electrode stair and the second electrode stair, and shapes of the corners of the first electrode stair and the second electrode stair having steps are different. There is also provided a secondary battery including the electrode assembly. Secondary batteries having various designs without restriction in shapes of corners of electrode units can be provided.

Abstract: Gadolinium-doped cerium oxide slurries used to form a patchwork type surface structure with nanoporous grain boundary prepared by mixing gadolinium-doped cerium oxide and a polymer binder to form a first mixture; wet-atomizing the first mixture under a pressure of at least 100 MPa to obtain a second mixture; coating the second mixture to a substrate to form a coated substrate; and sintering the coated substrate. The patchwork type structure is a polygonal or honeycomb structure having a size of from 0.1 ?m to 3 ?m.

Abstract: A method of operating a fuel cell system includes characterizing the fuel or fuels being provided into the fuel cell system, characterizing the oxidizing gas or gases being provided into the fuel cell system, and calculating at least one of the steam:carbon ratio, fuel utilization and oxidizing gas utilization based on the step of characterization.

Abstract: A battery temperature regulating device a battery module, a temperature detection device, a battery temperature regulating device, and a battery pack case. The battery temperature regulating device includes a cooling heat exchanger configured to cool air that passes therethrough, a condensed water reservoir configured to store condensed water generated in the cooling heat exchanger, and an air blowing device configured to blow the air in the vicinity of the cooling heat exchanger and the condensed water reservoir and circulate the air within the battery pack case. The battery temperature regulating device is configured to cool the air that passes through the cooling heat exchanger, drive the air blowing device to execute the cooling of the battery module when the temperature of the battery module is higher than a predetermined temperature, and drive only the air blowing device regardless of the temperature of the battery module.

Abstract: A fuel cell system includes: a fuel cell; a fuel supply source; a supply passage; a circulation passage; a gas-liquid separator; a discharge passage; a discharge valve; a differential pressure detecting portion; and a control unit, wherein the control unit estimates a flow rate of a fuel gas.

Abstract: A catalyst carrier production process includes a step (a) of mixing a transition metal compound (1), a nitrogen-containing organic compound (2), and a solvent to provide a catalyst carrier precursor solution; a step (b) of removing the solvent from the catalyst carrier precursor solution; and a step (c) of thermally treating a solid residue obtained in the step (b) at a temperature of 500 to 1100° C. to provide a catalyst carrier; wherein the transition metal compound (1) is partly or wholly a compound including a transition metal element (M1) selected from the group 4 and 5 elements of the periodic table as a transition metal element; and at least one of the transition metal compound (1) and the nitrogen-containing organic compound (2) includes an oxygen atom.

Abstract: A redox flow battery includes: a positive electrolyte storage tank; a negative electrolyte storage tank; a cell stack; a positive electrolyte outward path that sends positive electrolyte to positive electrode chambers in the cell stack; a positive electrolyte return path that sends positive electrolyte to the positive electrolyte storage tank; a negative electrolyte outward path that sends negative electrolyte to negative electrode chambers of the cells; a negative electrolyte return path that sends negative electrolyte to the negative electrolyte storage tank; an entrance open circuit voltage measuring portion that measures an upstream open circuit voltage between the positive electrolyte inside the positive electrolyte outward path and the negative electrolyte inside the negative electrolyte outward path; and an exit open circuit voltage measuring portion that measures a downstream open circuit voltage between the positive electrolyte inside the positive electrolyte return path and the negative electrolyte

Abstract: A wet state control device for fuel cell includes a priority control unit for preferentially controlling either one of a pressure and a flow rate of cathode gas when a wet state of a fuel cell is adjusted, a water temperature control unit for controlling a temperature of cooling water when the wet state of the fuel cell is not completely adjustable by a control of the priority control unit, and a complementary control unit for controlling the other of the pressure and the flow rate of the cathode gas to complement a response delay of the water temperature control unit.

Abstract: Redox flow devices are described including a positive electrode current collector, a negative electrode current collector, and an ion-permeable membrane separating said positive and negative current collectors, positioned and arranged to define a positive electroactive zone and a negative electroactive zone; wherein at least one of said positive and negative electroactive zone comprises a flowable semi-solid composition comprising ion storage compound particles capable of taking up or releasing said ions during operation of the cell, and wherein the ion storage compound particles have a polydisperse size distribution in which the finest particles present in at least 5 vol % of the total volume, is at least a factor of 5 smaller than the largest particles present in at least 5 vol % of the total volume.

Abstract: A busbar module unit includes a busbar module that is made of a resin and retains a plurality of first conductors and two second conductor, a wiring path that accommodates a plurality of voltage detection wires, a terminal accommodating portion that accommodates connection terminals of a power cable, and a cover member that is connected to the busbar module via a hinge portion. The terminal accommodating portion is integrally formed with the cover member. The wiring path is arranged so as to intersect at least one of the connection terminals. The cover member has a first face and a second face opposite to the first face, the first face opposes the wiring path when the cover member is folded back via the hinge portion. The terminal accommodating portion is formed on the second face.

Abstract: A passively impact resistant composite electrolyte composition includes an electrolyte solvent, up to 2M of an electrolyte salt, and shear thickening ceramic particles having a polydispersity index of no greater than 0.1, an average particle size of in a range of 50 nm to 1 ?m, and an absolute zeta potential of greater than ±40 mV.

Abstract: A secondary battery including a plurality of electrode assemblies including: a first electrode assembly including a first positive electrode active material; and a secondary electrode assembly including a second positive electrode active material; the first electrode assembly and the second electrode assembly being electrically connected to each other, the first positive electrode active material being different from the second positive electrode active material, and a discharge capacity ratio of the second electrode assembly being in a range of 25% to 80%, based on a total discharge capacity of the first electrode assembly and the second electrode assembly, is disclosed.

Abstract: Provided are a method for welding a battery module and a welded structure, and more particularly, a method for welding a battery module and a welded structure, in which a plurality of battery cells provided with electrode tabs are assembled to form a module and a voltage measurement portion of a voltage measurement means is welded to the electrode tabs so as to secure stability against vibrations and external shocks, thereby increasing reliability of voltage measurement and the voltage measurement portion is welded to the electrode tabs using the same kind of materials so as to facilitate an operation and improve productivity.

Abstract: A manufacturing method for a square battery includes: a first process in which an outer terminal and an outer side resin member that separates the outer terminal and an outer surface of a lid body are assembled to the lid body; a second process in which a laser beam is irradiated from the outer surface side of the lid body to weld the lid body to the case body by laser after the first process; and a third process in which the outer side resin member is expanded after the second process.

Abstract: In a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolytic solution, the nonaqueous electrolytic solution contains a nitrile compound having a chain saturated hydrocarbon group and a nitrile group, the number of carbon atoms in the nitrile compound is four or more, and the positive electrode contains a positive-electrode active material on the surface of which particles of a rare earth element compound are deposited in dispersed form.