Abstract: A bus bar includes terminal portions disposed at both ends, respectively; a plurality of bridges disposed between the terminal portions to electrically connect the terminal portions, and to be sequentially fused when an overcurrent flows. The plurality of bridges may be configured to have different resistance values, respectively.

Abstract: Provided is a secondary battery, which can reduce defects of an uncoated portion of a current collector while ensuring a larger capacity and improving welding quality of the current collector. In one embodiment, the secondary battery includes a series of electrode assemblies each including a first electrode tab and a second electrode tab, a case accommodating the electrode assemblies, a cap plate coupled to the case at an opening in the case, a first current collector electrically connected to the first electrode tabs of the electrode assemblies, a second current collector electrically connected to the second electrode tabs of the electrode assemblies, and a first series of sub-tabs. A first sub-tab is coupled to the first electrode tab of a first electrode assembly, and a second sub-tab is coupled to the first electrode tab of a second electrode assembly. The first sub-tab is bent along a first boundary and the second sub-tab is bent along a second boundary.

Abstract: To provide a highly reliable battery pack having excellent manufacturability, a battery pack according to the present invention includes a stack of a plurality of battery cells 100 that each include a positive electrode lead tab and a negative electrode lead tab led out of a laminate film casing in a same direction, a coupling assisting member 300 that assists in electrically connecting adjoining battery cells 100, and a reinforcing member 200 interposed between the stacked battery cells 100. The reinforcing member 200 includes a protrusion 240 protruding in the same direction as that in which the positive electrode lead tabs and the negative electrode lead tabs of the battery cells 100 are led out. The coupling assisting member 300 includes a guide portion 340 that engages with the protrusion 240 and guides the protrusion 240 in combining the coupling assisting member 300 and the reinforcing member 200.

Abstract: A carrier-nanoparticle complex including a carbon carrier, a polymer layer provided on the surface of the carbon carrier and having an amine group and a hydrogen ion exchange group, and metal nanoparticles provided on the polymer layer, a catalyst including the same, an electrochemical battery or a fuel cell including the catalyst, and a method for preparing the same.

Abstract: A battery module includes a cell assembly having a plurality of secondary batteries and a plurality of heat dissipation plates interposed between the plurality of secondary batteries. At least a portion of a front end and a rear end of the heat dissipation plates is recessed to form an inlet portion and an outlet portion so that a coolant is introduced from the outside or discharged to the outside, and the heat dissipation plates have a coolant moving portion so that the coolant moves to a front end, an upper end, a lower end and a rear end of the secondary batteries. A bus bar assembly has a plurality of bus bars and a bus bar frame having insert holes into which the electrode leads of the secondary batteries are inserted; an end cover having a vent hole communicating with the coolant moving portion and a plurality of side plates.

Abstract: A battery pack including at least one battery cell; a pack case configured to accommodate the battery cell and having a cooling hole formed therethrough; a flow meter provided at an outer side of the pack case and disposed adjacent to the cooling hole; and an opening and closing unit configured to open or close the cooling hole according to a temperature change inside the pack case.

Abstract: The present invention provides an electrode mixture layer for nonaqueous electrolyte secondary batteries, which contains an electrode active material, a carbon-based conductive agent containing fibrous carbon having an average effective length of 10 ?m, and a binder, and which has a thickness of 50 ?m or more. This electrode mixture layer has an inner layer portion where the fibrous carbon is three-dimensionally dispersed in a random manner.

Abstract: Provided are an electrolytic solution for a non-aqueous secondary battery containing an electrolyte, an organic solvent, and a metal complex represented by General Formula (I), a non-aqueous secondary battery in which the electrolytic solution for a non-aqueous secondary battery is used, and a metal complex. In General Formula (I), M represents a transition metal. k represents an integer of 0 or more, m represents an integer of 0 to 4, and n represents an integer of 1 or more. Here, k+n represents a valence of M. R1 represents an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. R2 and R3 represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. L represents a monodentate ligand.

Abstract: The present invention relates to a microporous polymeric battery separator comprised of a single layer of enmeshed microfibers and nanofibers. Such a separator accords the ability to attune the porosity and pore size to any desired level through a single nonwoven fabric. As a result, the inventive separator permits a high strength material with low porosity and low pore size to levels unattained. The combination of polymeric nanofibers within a polymeric microfiber matrix and/or onto such a substrate through high shear processing provides such benefits, as well. The separator, a battery including such a separator, the method of manufacturing such a separator, and the method of utilizing such a separator within a battery device, are all encompassed within this invention.

Abstract: A method of producing a solid electrolyte having a high ionic conductivity, which adopts a liquid-phase method and suppresses the generation of hydrogen sulfide, wherein a raw material inclusion containing a lithium element, a sulfur element, a phosphorus element, and a halogen element is mixed with a complexing agent containing a compound having at least two tertiary amino groups; and an electrolyte precursor constituted of a lithium element, a sulfur element, a phosphorus element, a halogen element, and a complexing agent containing a compound having at least two tertiary amino groups.

Abstract: A solid oxide fuel cell stack having a metallic layer and a glass layer, and a method for preventing or reducing a chemical reaction between the metallic layer and the glass layer are disclosed. The solid oxide fuel cell stack has a barrier layer disposed between the metallic layer and the glass layer. The barrier layer includes alumina and a phosphate. The phosphate includes an aluminum dihydrogen phosphate, an aluminum-containing phosphate, a phosphate of an element of the metallic layer, a phosphate of an element of the glass layer, or combinations thereof. The method includes disposing a barrier layer between the metallic layer and the glass layer.

Abstract: The disclosure provides a modified positive electrode active material, a preparation method thereof, and an electrochemical energy storage device. The modified positive electrode active material comprises positive electrode active material substrate; first oxide layer, coated on the surface of the positive electrode active material substrate and selected from one or more of oxides of element M being selected from the group of one or more of Li, Al, Zr, Mg, Ti, Y, Si, Ca, Cr, Fe, Zn, Nb, Sn, Ba, and Cd; and second oxide layer having a continuous layered structure, coated on the surface of the first oxide layer and selected from one or more of oxides of element M? being selected from one or more of Li, B, P, As, Pb, V, Mo, and Sn. High temperature storage performance and cycling performance of electrochemical energy storage device are improved by the modified positive electrode active material.

Abstract: The present specification relates to a carrier-nanoparticle complex, a catalyst including the same, an electrochemical cell or a fuel cell including the catalyst, and a method for preparing the same.

Abstract: A negative electrode according to one embodiment of the present invention comprises a current collector and a negative electrode active material layer disposed on the current collector, wherein the negative electrode active material layer includes a first particle and a second particle, the first particle includes a first core including artificial graphite; and a first shell disposed on the first core, said first shell including an oxide of the artificial graphite, wherein a sphericity of the first particle measured through a particle shape analyzer is from 0.94 to 0.98, the second particle is artificial graphite having sphericity measured through the particle shape analyzer of 0.70 to 0.92, and a weight ratio of the first particle and the second particle is from 1:1 to 1:9.

Abstract: A positive electrode composite material for a lithium ion secondary battery that makes it possible to appropriately reduce the electric resistance in a positive electrode and to realize a high-performance lithium ion secondary battery. The positive electrode composite material to be used in the positive electrode of the lithium ion secondary battery includes a particulate positive electrode active material composed of a lithium composite oxide having a layered crystal structure including at least lithium, and a conductive oxide. Here, a particulate region where primary particles of the conductive oxide are aggregated, and a film-shaped region where the conductive oxide is formed in a film shape adhere to at least a part of the surface of the positive electrode active material. The average particle diameter based on cross-sectional TEM observation of primary particles in the particulate region is equal to or greater than 0.

Abstract: The present disclosure provides a battery module, including: a plurality of batteries that is stacked; an end plate disposed at an end of the plurality of batteries in a direction, along which the plurality of batteries are stacked; an electric insulation component disposed between the end plate and a battery of the plurality of batteries adjacent to the end plate, the electric insulation component comprising at least one mounting portion; and at least one heat insulation component disposed below the end plate and connected to a bottom of the end plate. Each of the at least one heat insulation component is detachably connected to a corresponding one of the at least one mounting portion.

Abstract: A clad material (50) for a negative electrode collector of a secondary battery includes a Ni alloy layer (51) made of a Ni alloy that contains 0.005 mass % or more and 0.50 mass % or less of C, Ni, and inevitable impurities, and a pair of Cu layers (52, 53) respectively bonded to opposite surfaces of the Ni alloy layer and that contain 99 mass % or more of Cu.

Abstract: A lithium-sulfur battery in which a passivation film having a semi-interpenetrating polymer network (semi-IPN) structure is formed on an electrode to improve lifespan characteristics of high-loading lithium-sulfur batteries.

Abstract: A rechargeable lithium battery includes a metal-containing foam current collector, and an active mass that fills in the metal-containing foam current collector, the active mass including an active material. The electrode includes a central region and a surface region. The central region corresponds to a ±5% upper and lower area with a reference to a central thickness line of the electrode. A volume ratio of the metal and the active material in the central region is different from a volume ratio of the metal and the active material in the surface region.

Abstract: Systems and methods for silosilazanes, silosiloxanes, and siloxanes as additives for silicon-dominant anodes in a battery that may include a cathode, an electrolyte, and an anode active material. The active material may comprise 50% or more silicon as well as an additive including one or more of: silosilazane, silicon oxycarbides, and polyorganosiloxane. The silosilazane may comprise one or more amine groups, silanols, silyl ethers, sylil chlorides, dialkylamoinosilanes, silyl hydrides, and cyclic azasilanes. The active material may comprise a film with a thickness between 10 and 80 microns. The film may have a conductivity of 1 S/cm or more. The active material may comprise between 50% and 95% silicon. The active material may be held together by a pyrolyzed carbon film. The anode may comprise lithium, sodium, potassium, silicon, and/or mixtures and combinations thereof. The battery may comprise a lithium ion battery. The electrolyte may comprise a liquid, solid, or gel.