Abstract: The present disclosure relates to a rechargeable battery including a cell assembly including a plurality of unit cells disposed to be separated by a predetermined interval, a casing member receiving the cell assembly, a first connection part connecting the plurality of unit cells, and a second connection part disposed parallel to the first connection part and connecting the plurality of unit cells, wherein each of the plurality of unit cells includes a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode.

Abstract: Processes for applying magnetic fields to articles such as a layer or layer-coated articles, and more particularly to coatings having graphite particles, preferably for manufacture of negative electrodes having aligned graphite particles, for example for fast-charging lithium-ion batteries. The application of magnetic fields may be continuous. For this, magnetic tools with permanent magnets may be used for applying magnetic fields, wherein an article is moved relative to a magnetic tool. Application of magnetic field is made before the initiation of a drying phase and/or during a drying phase.

Abstract: The present invention relates to a catalyst composition, comprising tin oxide particles which are at least partially coated by a noble metal oxide layer, wherein the composition contains iridium and ruthenium in a total amount of from 10 wt % to 38 wt %, and all iridium and ruthenium is oxidized, —has a BET surface area of from 5 to 95 m2/g, and —has an electrical conductivity at 25° C. of at least 7 S/cm.

Abstract: A manufacturing method includes the steps of: preparing a battery case having an opening; fabricating an assembly by inserting a wound electrode body and a lid which includes a terminal connected to the wound electrode body and which closes the opening into the battery case; sandwiching the battery case by a pressing jig in a state where the opening faces downward to close a gap between the battery case and the lid; disposing the assembly so that the terminal faces upward by inverting the assembly in a state where the battery case is sandwiched by the pressing jig; and welding the lid and the battery case to each other in a state where the terminal faces upward and the battery case is sandwiched by the pressing jig.

Abstract: A fuel cell system includes a control unit that is configured to perform highland control for increasing an amount of electric power generated per unit time by a fuel cell and increasing a rotational speed of a compressor such that an operating point of the compressor falls outside a surging region, in comparison with a case where a highland condition that an outside air pressure determined from an outside air pressure-associated information is lower than an outside air pressure threshold determined in advance is not fulfilled, when the highland condition is fulfilled in starting electric power generation by the fuel cell.

Abstract: A process for preparing a cathode of a lithium battery, having the following steps: (a) Longitudinally punching a metal band to form irregular filamentous holes, horizontally stretching the metal band, and performing compaction to give the metal net irregular filamentous holes; (b) After the metal net is cleaned and dried, processing the metal net surface by a laser less than 5W, of 500-1000W, and of 10-100W sequentially; and (c) Coating the metal net, having the surface processed with lasers, with a prepared cathode paste, and drying, pressing, and cutting the metal net to obtain a battery cathode.

Abstract: A fuel cell includes: an electrolyte membrane; first and second catalyst layers respectively formed on first and second surface of the electrolyte membrane; and a separator disposed opposite to the electrolyte membrane with respect to the first catalyst layer.

Abstract: An electrolyte for a lithium secondary battery of the present invention may improve high-rate charge and discharge characteristics and high-temperature storage and life characteristics of a lithium secondary battery and may achieve an effect of increasing reversible capacity by simultaneously including lithium bis(fluorosulfonyl)imide (LiFSI) and a second lithium salt, as a lithium salt, while including a second additive as well as a novel borate-based lithium compound, as an additive.

Abstract: An interface sealing component for enclosing electrical battery cable between a cover and an array of batteries includes a base member having a first side shaped to matingly engage a battery surface of one or more batteries. A second side of the interface sealing component is opposite the first side, and is shaped to matingly engage a battery cover so that the base member forms an interior volume between the battery surface and the battery cover. Each battery surface has at least one terminal disposed on the battery surface into the interior volume through a base aperture in the base member. In this manner, the interface sealing component and battery cover can seal a number of battery terminals from outside environmental conditions, such as dust, moisture, or chemical exposure that can damage the battery terminals and reduce the operating life of the battery.

Abstract: A negative electrode including a lithium metal layer, a lithium nitride thin film layer formed on at least one surface of the lithium metal layer, and a carbon-based thin film layer formed on the lithium nitride thin film layer, a method for preparing the same, and a lithium secondary battery including the same. A lithium nitride thin film layer and a carbon-based thin film layer formed on a lithium metal layer obtains current density distribution uniformly by blocking side reactions caused by a direct contact between the lithium metal layer and an electrolyte as well as increasing a specific surface area of a negative electrode, and enhances cycle performance and reduces an overvoltage by suppressing lithium dendrite formation to improve electrochemical performance of a lithium secondary battery.

Abstract: The present invention provides a high voltage battery cell, and specifically a high voltage battery cell including a jelly roll in which three different types of jelly roll units are stacked freely and connected in series. According to embodiments of the present invention, there is provided a high voltage battery cell which is capable of implementing various cell structures while having a high voltage, and is relatively resistant to an external impact than other typical secondary cells.

Abstract: A secondary energy storage element includes a reference electrode or a constituent thereof positioned between at least one ply of a separator layer and one of electrode layers and electrically insulated from the electrode layer by an insulating means, the reference electrode or the constituent thereof positioned such that there is at least one metal filament or a sheet-shaped metallic coating on a surface of the at least one ply of the separator layer or a surface of the insulating means, within an overlap region the at least one metal filament or the sheet-shaped metallic coating is arranged on the surface of a ply of the separator layer or a surface of the insulating means, and the at least one metal filament or the sheet-shaped metallic coating covers on the surface an area of a maximum of 5% of the area over which the overlap region extends.

Abstract: When a non-aqueous electrolyte secondary battery in which a positive electrode active material comprising a layered lithium-composite oxide is used for a positive electrode is subjected to charge/discharge under a prescribed condition, in a graph showing the relationship between voltage “V” with discharge during 5th cycle and value dQ/dV from differentiation of battery capacity “Q” with discharge during 5th cycle by voltage “V”, peak intensity ratio “r” represented by the equation: r=|Ic|/(|Ia|+|Ib|+|Ic|) satisfies 0<r?0.25, in which |Ia| is absolute value dQ/dV for a peak top within a range of more than 3.9V to 4.4V or less, |Ib| is absolute value dQ/dV for a peak top within a range of more than 3.5V to 3.9V or less, and |Ic| is absolute value dQ/dV for a peak top within a range of 2.0V or more to 3.5V or less.

Abstract: A battery module includes a battery stack having a plurality of stacked batteries, a first heat radiator facing first surface of battery stack, a first heat transfer component that is in contact with the first heat radiator and first surface to transfer heat from the battery stack to the first heat radiator, and a second heat radiator facing a second surface of the battery stack. The second surface extends in a direction intersecting with the first surface. The second heat radiator is thermally connected to the second surface directly or through the second heat transfer component. A positional relationship between the first heat transfer component and the battery stack is formed such that the center of the first heat transfer component (84) is more away from the second heat radiator than the center of the battery stack is in a direction along the first surface.

Abstract: This disclosure details exemplary battery pack designs for use in electrified vehicles. Exemplary battery packs include an enclosure assembly that houses one or more battery internal components. One or more brackets may be used to mount each of the battery internal components within the enclosure assembly. Each bracket may include at least one attachment point for securing the bracket to the enclosure assembly and at least two attachment points for securing the bracket to a support structure of the battery internal component. Fasteners may be received through the brackets and then into either the enclosure assembly or the support structure in order to mount the battery internal component inside the battery packs.

Abstract: An electrode for solid-state batteries, comprising a PTC resistor layer, and a solid-state battery comprising the electrode. The electrode may be an electrode for solid-state batteries, wherein the electrode comprises an electrode active material layer, a current collector and a PTC resistor layer which is disposed between the electrode active material layer and the current collector and which is in contact with the electrode active material layer; wherein the PTC resistor layer contains an electroconductive material, an insulating inorganic substance and a polymer.

Abstract: Provided are a heat-dissipation fluid composition, a method of preparing the heat-dissipation fluid composition, and a battery module and battery pack including the heat-dissipation fluid composition. The heat-dissipation fluid composition can include 100 parts by weight of a nonconductive oil; 1 to 30 parts by weight of thermally conductive inorganic particles; and 1 to 30 parts by weight of an inorganic precipitation inhibitor, wherein a viscosity at 20° C. and 50 rpm is 850 cP or more, and a viscosity at 30° C. and 50 rpm is 750 cP or less. The heat-dissipation fluid composition exhibits excellent electrical insulating properties and thermal conductivity and, especially, excellent heat dissipation performance even after long-term use because thermally conductive inorganic particles are not permanently precipitated during use.

Abstract: An energy storage device includes: an electrode assembly; a case configured to store the electrode assembly; a conductive member electrically connected to the electrode assembly; a first insulating member disposed between a wall of the case and the conductive member; and a projection protrudingly provided on the wall on an opposite side to the first insulating member, wherein the first insulating member has a first engaging portion configured to engage with a limiting portion, the limiting portion being a portion of a recess formed on the wall on an opposite side to the projection.

Abstract: An electric work vehicle includes a battery container provided in a traveling vehicle body and including a guiding unit, and a battery pack removably attached to the battery container and including a guided unit. A pair of rollers are provided in one of the guiding unit and the guided unit, and a pair of engaging portion to be engaged with the rollers are provided in the other of the guiding unit and the guided unit. When the battery pack is loaded or unloaded onto/from the battery container at the loading/unloading position, the rollers engage with the engaging portions, thereby functioning as pivot fulcrums for enabling the battery pack to pivot for loading and unloading.

Abstract: A fuel cell system includes: a fuel cell; a fuel treating unit configured to treat a raw fuel and generate fuel gas for the fuel cell; an oxidant-gas heater configured to heat oxidant gas for the fuel cell; a combustor configured to combust the raw fuel and generate combustion gas to heat the fuel treating unit and the oxidant-gas heater; and a control unit configured to control supplying of the raw fuel to the fuel treating unit and the combustor at the time of warming-up of the fuel cell. The control unit supplies the raw fuel to both of the fuel treating unit and the combustor when the fuel treating unit is at an operable temperature of the fuel treating unit.