Abstract: A rechargeable battery module is disclosed. In one aspect, the battery module includes a plurality of unit cells including first and second outermost unit cells disposed at first and second opposing ends of the unit cells arranged in a first direction, wherein the unit cells have top and bottom surfaces opposing each other. The battery module also includes a bus bar holder covering the top surface of the unit cells, a bus bar disposed at the bus bar holder to electrically connect the unit cells and a pair of end plates respectively supporting the first and second outermost unit cells. The battery module further includes a pair of side plates disposed at third and fourth opposing ends of the unit cells arranged in a second direction crossing the first direction, wherein the side plates are connected to the end plates and the bus bar holder.

Abstract: A secondary battery includes a case; an electrode assembly accommodated in the case, and including a first electrode plate, a second electrode plate, and a separator between the first and second electrode plates; a first terminal portion electrically connected to the electrode assembly; and a cap plate configured to cover an opening of the case, and the first terminal portion includes a first electrode terminal passing through the cap plate to protrude upward from a first position of the cap plate, and a first current collector including a first end connected to the first electrode terminal, and a second end connected to the first electrode plate, the first current collector including a plurality of notches.

Abstract: A power storage device with high capacity, a power storage device with high energy density, a highly reliable power storage device, and a long-life power storage device are provided. The power storage device includes a positive electrode, a separator, a negative electrode, and an electrolytic solution. The electrolytic solution contains an alkali metal salt and an ionic liquid. The separator is located between the positive electrode and the negative electrode. At least part of the positive electrode overlaps with the negative electrode. At least part of an end portion of the negative electrode is located inside a region between end portions of the positive electrode.

Abstract: A pouch battery cell assembly for a traction battery includes a housing, a first intermediate terminal member, and a first terminal tab. The housing defines a cavity. The first intermediate terminal member is disposed at least partially within the housing and defines an access port open to an exterior of the housing and the cavity which may be sized for electrolyte injection. The first terminal tab is embedded within the first intermediate terminal member. A pressure sensitive release mechanism may be disposed within the access port to selectively vent gases from the cavity. A second intermediate terminal member may be at least partially disposed within the housing and a second terminal tab may be embedded within the second intermediate terminal member.

Abstract: The present invention provides a ?-type titanium alloy that includes, by mass %, when Al: 2 to 5%, 1) Fe: 2 to 4%, Cr: 6.2 to 11%, and V: 4 to 10%, 2) Fe: 2 to 4%, Cr: 5 to 11%, and Mo: 4 to 10%, or 3) Fe: 2 to 4%, Cr: 5.5 to 11%, and Mo+V (total of Mo and V): 4 to 10% in range, and a balance of substantially Ti. These include Zr added in amounts of 1 to 4 mass %. Furthermore, by making the oxygen equivalent Q 0.15 to 0.30 or leaving the alloy in the work hardened state or by applying both, the tensile strength before aging heat treatment can be further increased.

Abstract: A secondary battery includes a case; an electrode assembly accommodated in the case, and including a first electrode plate, a second electrode plate, and a separator between the first and second electrode plates; a first terminal portion electrically connected to the electrode assembly; and a cap plate configured to cover an opening of the case, and the first terminal portion includes a first electrode terminal passing through the cap plate to protrude upward from a first position of the cap plate, and a first current collector including a first end connected to the first electrode terminal, and a second end connected to the first electrode plate, the first current collector including a plurality of notches.

Abstract: A cover assembly for a battery module is configured to be coupled to battery cells that are arranged side-by-side in a stacked configuration. The cover assembly includes a housing, a plurality of bus bars, and an electrical cable. The bus bars are held by the housing and are configured to electrically connect to corresponding positive and negative cell terminals of the battery cells to electrically connect adjacent battery cells. The cable extends across the bus bars and is electrically connected to each of the bus bars to monitor voltages across the battery cells. The cable includes plural electrical conductors and a dielectric insulator that surrounds and electrically isolates the conductors. The conductors include exposed segments exposed through the dielectric insulator that are electrically connected to corresponding bus bars via a bonding layer applied between the exposed segment and the corresponding bus bar.

Abstract: Disclosed herein is a battery pack configured to have a structure including at least one battery module having a structure in which a plurality of unit cells or a plurality of unit modules, each of which includes a plurality of unit cells, is electrically connected to each other, a battery pack case in which the battery module is received, an inner cartridge for fixing the battery module in the battery pack case, and a battery management system (BMS) assembly including a BMS circuit board for monitoring and controlling operation of the battery pack and a BMS case in which the a BMS circuit board is mounted, the BMS assembly being mounted in the inner cartridge from outside the battery pack in an inserting fashion.

Abstract: A battery safety mechanism can provide a fast-action thermal mechanism to protect and/or electrically isolate a cell of a battery and thereby allow the cell to cool and preserve or elongate life of the battery. The mechanism can use a phase-change material (PCM) reservoir that can be selectively melted to permit actuation of a spring-loaded metal shunt. When actuated, the metal shunt can be placed into contact with terminals of the cell, thereby allowing the cell to be bypassed and be disabled. Thus, the device can electrically isolate the cell from the rest of the battery.

Abstract: An energy storage assembly includes a plurality of electrical energy stores. Arranged between at least two electrical energy stores is at least one thermally conductive spacer element which has at least one area to separate the at least two electrical energy stores. The at least one spacer element is thermally coupled to at least one heat pipe of a first heat pipe assembly and to at least one heat pipe of a second heat pipe assembly.

Abstract: A composite powder in which highly dispersed metal oxide nanoparticle precursors are supported on carbon is rapidly heated under nitrogen atmosphere, crystallization of metal oxide is allowed to progress, and highly dispersed metal oxide nanoparticles are supported by carbon. The metal oxide nanoparticle precursors and carbon nanoparticles supporting said precursors are prepared by a mechanochemical reaction that applies sheer stress and centrifugal force to a reactant in a rotating reactor. The rapid heating treatment in said nitrogen atmosphere is desirably heating to 400° C. to 1000° C. By further crushing the heated composite, its aggregation is eliminated and the dispersity of metal oxide nanoparticles is made more uniform. Examples of a metal oxide that can be used are manganese oxide, lithium iron phosphate, and lithium titanate. Carbons that can be used are carbon nanofiber and Ketjen Black.

Abstract: An interconnect for a low temperature solid oxide fuel cell, the interconnect comprising: a stainless steel substrate comprising a first surface and a second surface; a layer comprising chromium oxide on the first surface of the substrate, wherein the chromium oxide layer has a thickness in the range of 350-600 nm; and a metal oxide coating on the chromium oxide layer. A process for making an interconnect for a low temperature solid oxide fuel cell, the process comprising: coating a first surface of a stainless steel substrate with a metal oxide to form a coated substrate; and heating the coated substrate to a temperature in the range of 800-900° C. to form a layer comprising chromium oxide between the first surface and the metal oxide coating.

Abstract: A fuel cell includes: a stack having a manifold in which a fluid flows and having a plurality of flowing spaces which communicate with the manifold through openings; a shielding part having a plurality of shielding strips arranged in a stacked direction of the stack and selectively moving along the manifold to shield at least some of the plurality of flowing spaces; and a driver coupled with the shielding part to move the shielding part.

Abstract: A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; an electrode terminal configured to be electrically coupled to the electrode assembly; a case configured to accommodate the electrode assembly; and a cap plate mounted at an opening of the case, the cap plate having a terminal hole. The electrode terminal includes: a first terminal at the terminal hole of the cap plate and configured to be electrically coupled to the electrode assembly; a second terminal at an exterior side of the cap plate and configured to be electrically coupled to the first terminal such that the first terminal is exposed to an exterior of the case; and a third terminal on the second terminal and configured to be elastically deformable and electrically coupled to the first terminal through the second terminal.

Abstract: A highly reliable assembled battery has first passages formed between a first rectangular cell and a first surface of the body part of a separator, and has second passages formed between a second rectangular cell and the second surface of the body part of the separator in an alternating manner from above to below. Openings are provided in a side wall part of the separator. The first passages and the second passages are exposed by the openings.

Abstract: The present invention provides an electrolytic solution capable of restraining gas generation. The present invention relates to an electrolytic solution containing a nonaqueous solvent (I), an electrolyte salt (II), and a compound (III) represented by the following formula (1): wherein Rf represents a C1-C20 linear or branched fluorinated alkyl group or a C3-C20 fluorinated alkyl group having a cyclic structure, R represents a C1-C20 linear or branched alkylene group or a C3-C20 alkylene group having a cyclic structure, hydrogen atoms in R may be partially or fully replaced by fluorine atoms, Rf and R may each contain an oxygen atom between carbon atoms when having a carbon number of 2 or more as long as oxygen atoms are not adjacent to each other.

Abstract: A high temperature, high strength Ni—Co—Cr alloy possessing essentially fissure-free weldability for long-life service at 538° C. to 816° C. contains in % by weight about: 23.5 to 25.5% Cr, 15-22% Co, 1.1 to 2.0% Al, 1.0 to 1.8 % Ti, 0.95 to 2.2% Nb, less than 1.0% Mo, less than 1.0% Mn, less than 0.3% Si, less than 3% Fe, less than 0.3% Ta, less than 0.3% W, 0.005 to 0.08% C, 0.01 to 0.3% Zr, 0.0008 to 0.006% B, up to 0.05% rare earth metals, 0.005% to 0.025% Mg plus optional Ca and the balance Ni including trace additions and impurities. The strength and stability is assured at 760° C. when the Al/Ti ratio is constrained to between 0.95 and 1.25. Further, the sum of Al+Ti is constrained to between 2.25 and 3.0. The upper limits for Nb and Si are defined by the relationship: (% Nb+0.95)+3.32(% Si)<3.16.

Abstract: A nickel-chromium casting alloy comprising, in weight percent, up to 0.8% of carbon, up to 1% of silicon, up to 0.2% of manganese, 15 to 40% of chromium, 0.5 to 13% of iron, 1.5 to 7% of aluminum, up to 2.5% of niobium, up to 1.5% of titanium, 0.01 to 0.4% of zirconium, up to 0.06% of nitrogen, up to 12% of cobalt, up to 5% of molybdenum, up to 6% of tungsten and from 0.01 to 0.1% of yttrium, remainder nickel, has a high resistance to carburization and oxidation even at temperatures of over 1130° C. in a carburizing and oxidizing atmosphere, as well as a high thermal stability, in particular creep rupture strength.

Abstract: The present invention relates to a conducting material composition capable of forming an electrode in which at least two kinds of carbon based materials are contained in a uniformly dispersed state to enable a battery such as a lithium rechargeable battery having more improved electrical and lifetime characteristics to be provided, and a slurry composition for forming an electrode of a lithium rechargeable battery and a lithium rechargeable battery using the same. The conducting material composition contains: at least two kinds of conductive carbon-based materials selected from the group consisting of carbon nano tube, graphene, and carbon black; and a dispersant containing a plurality kinds of poly aromatic hydrocarbon oxides, wherein the dispersant contains poly aromatic hydrocarbon oxides having a molecular weight of 300 to 1000 at a content of 60 wt.% or more.

Abstract: A lithium secondary battery which has high charge-discharge capacity, can be charged and discharged at high speed, and has little deterioration in battery characteristics due to charge and discharge is provided. A negative electrode includes a current collector and a negative electrode active material layer. The current collector includes a plurality of protrusion portions extending in a substantially perpendicular direction and a base portion connected to the plurality of protrusion portions. The protrusion portions and the base portion are formed using the same material containing titanium. A top surface of the base portion and at least a side surface of the protrusion portion are covered with the negative electrode active material layer. The negative electrode active material layer may be covered with graphene.