Abstract: A positive electrode active material particle includes a core that contains lithium cobalt oxide represented by the following Chemical Formula LiaCo(1-x)MxO2-yAy and a shell that is coated on the surface of the core and contains composite metal oxide of a metal with an oxidation number of +2 and a metal with an oxidation number of +3. In particular, M is at least one selected from the group consisting of Ti, Mg, Zn, Si, Al, Zr, V, Mn, Nb and Ni. A is oxygen-substitutional halogen and 1.00?a?1.05, 0?x?0.05, and 0?y?0.001.

Abstract: A process for preparing a stable LixKyMn2-zMezO4 is provided. The general formula of the potassium “A” site and Group VIII Period 4 (Fe, Co and Ni) “B” site modified lithium manganese-based AB2O4 spinel is LixKyMn2-zMezO4 where Me is Fe, Co, or Ni. In addition, a LixKyMn2-zMezO4 cathode material for electrochemical systems is provided. Furthermore, a lithium or lithium-ion rechargeable electrochemical cell is provided, incorporating the LixKyMn2-zMezO4 cathode material in a positive electrode.

Abstract: Lithium ion battery anodes including graphenic carbon particles are disclosed. Lithium ion batteries containing such anodes are also disclosed. The anodes include mixtures of lithium-reactive metal particles such as silicon, graphenic carbon particles, and a binder. The use of graphenic carbon particles in the anodes results in improved performance of the lithium ion batteries.

Abstract: A cap assembly and a secondary battery including the cap assembly including a cap-down, and at least a portion thereof is configured to open when pressure is applied to the cap-down, a vent portion, and at least a portion thereof is configured to open when pressure is applied to the vent portion, and a cap-up electrically connected to the vent portion.

Abstract: The present invention relates to a pouch type case having trimming portions formed on both sides or four corners thereof and a battery pack including the same. The trimming portions are formed on the corners of the pouch type case such that the trimming portions are indented toward an electrode assembly accommodating part to reduce a unit area so as to increase pressure applied to unit cells when a battery pack is assembled, thereby facilitating assembling of the battery pack and increasing cell capacity per unit area. Furthermore, the unit cells can be fixed in the battery pack more stably. The pouch type case reduces the unit area so as to include a relatively large number of cells for pressure applied to the cells when the battery pack is assembled to thereby increase the cell capacity.

Abstract: A vehicle (1) comprises a passenger compartment (2) in which a front seat (32F), a rear seat (32R), and a floor (33) between the front seat (32F) and the rear seat (38R) are provided. A first group (S1) of batteries (3) is mounted under the front seat (32F), a second group (S2) of the batteries (3) is mounted under the floor (33), and a third group (S3) of the batteries (3) is mounted under a rear seat (32R). By setting a height (h2) of the second group (S2) of the batteries (3) to be lower than respective heights (h1, h3) of the first and third groups (S1, S3) of the batteries (3), a battery mounting capacity of the vehicle (1) can be increased without affecting the comfort of the passenger compartment (2).

Abstract: A membrane electrode assembly for a fuel cell that includes a membrane electrode unit with a membrane and two electrodes which make surface contact with both faces of the membrane. The membrane electrode assembly has a seal support that surrounds the periphery of the membrane and that overlaps the latter. The membrane electrode also has a connecting layer which continuously overlaps the membrane and the seal support, an inner edge section of the connecting layer being bonded to the membrane electrode unit and an outer edge section of the connecting layer being bonded to the seal support on the same flat face of the connecting layer. A seal is connected outside the membrane to the seal support. A fuel cell is provided that includes a plurality of membrane electrode assemblies. A motor vehicle includes the fuel cell and a method is provided for producing the membrane electrode assembly.

Abstract: An exemplary battery pack cover includes a polymer layer and a metallic layer grounded to a chassis of an electric vehicle. An exemplary method includes shielding battery cells of a battery pack against electromagnetic interference and thermal energy using a multilayer cover that is grounded to a chassis of an electrified vehicle.

Abstract: Method and apparatus for contact detection in battery packs are disclosed. The battery pack may comprise at least a first battery cell and a second battery cell, and a power bar for coupling a first electrode of the first battery cell to a second electrode of the second battery cell. The first battery cell comprises a supervisor, which comprises a transmitter/receiver for signal communication with the second battery cell via a communication wire, and a voltage difference detector coupled to the power bar and the communication wire, for detecting a voltage difference between the power bar and the communication wire. The supervisor may indicate degraded contact of the power bar if the detected voltage difference is out of a predetermined threshold range. A battery cell and a method for monitoring a battery pack are also disclosed.

Abstract: Disclosed herein is a battery module configured in a structure in which a plurality of battery cells or unit modules (‘unit cells’) are stacked, and a heat sink is mounted to electrical connection regions between the unit cells and/or to outsides of battery module connection members connected to the electrical connection regions.

Abstract: A battery vent cap includes a cylindrical body having an upper portion and a lower portion. A pair of diametrically opposed, radially outwardly extending bayonet tabs is formed on the lower portion. The bayonet tabs permit an installation of the vent cap into a vent port of a battery cover without rotational movement thereof and a removal of the vent cap from the vent port with less than about 180 degrees rotational movement.

Abstract: A fuel cell assembly of one or more fuel cell bundles, wherein each fuel cell bundle comprises an array of elongated tubular fuel cells, comprising: an oxidant supply system; a fuel supply system; a fuel reformation system; and a support structure for integrating as a bundle said elongated tubular fuel cells, said oxidant supply system, said fuel supply system, and said fuel reformation system; a first row of spaced apart, elongated tubular fuel cells; wherein said support structure comprises: a base plate; a plurality of upper insulation end pieces (UIEPs) surrounding a top of the fuel cell assembly to produce a top assembly, wherein each upper insulation end piece has a top surface, a side portion and a beveled portion disposed between the top surface and the side portion to produce a beveled shoulder around the top assembly; a top clamp having a beveled inner surface complementary to the beveled shoulder that interfaces against a plurality of pivot pads disposed on the beveled shoulder when the top clamp i

Abstract: A solid polymer fuel cell has a plurality of stacked single battery modules having an electrolyte membrane, electrode layers disposed on both surfaces of the electrolyte membrane, and a pair of separators provided with a gas flow paths disposed on the inside surface so as to sandwich the electrode layer. The electrolyte membrane is provided with electrolyte material and a nonwoven fabric which is embedded in the electrolyte material. The nonwoven fabric is provided with a plurality of fused parts that are provided in a linear shape or spotted on a part of the nonwoven fabric that is a part corresponding to of the solid polymer fuel cell. Two or more nonwoven fibers are fused to each other, and the thickness thereof is thinner than the membrane thickness of the unwoven fabric.

Abstract: A fuel cell system and method that enables warm-up power generation corresponding to the residual water volume in the fuel cell stack without using auxiliary devices for measuring the residual water volume in the fuel cell stack. A controller computes total generated electrical energy Q by integrating of the generated current detected by current sensor during the period from start-up to shutting down of the fuel cell system, and stores the result in total generated electrical energy storage part. Also, controller measures fuel cell temperature Ts at the last shutting down cycle with temperature sensor, and stores it in power generation shutting down temperature storage part.

Abstract: Systems and methods for detecting and validating a leak in a fuel cell system are presented. In certain embodiments, various fuel cell stack set points may be adjusted such that adequate H2 flow data may be obtained to identify and validate an H2 leak and/or a location of such a leak. In some embodiments, H2 flow data may be obtained by adjusting certain fuel cell system operating parameters under a variety of operating conditions and/or modes and measuring flow data under such various operational conditions.

Abstract: Alkoxide magnesium halide compounds having the formula: RO—Mg—X??(1) wherein R is a saturated or unsaturated hydrocarbon group that is unsubstituted, or alternatively, substituted with one or more heteroatom linkers and/or one or more heteroatom-containing groups comprising at least one heteroatom selected from fluorine, nitrogen, oxygen, sulfur, and silicon; and X is a halide atom. Also described are electrolyte compositions containing a compound of Formula (1) in a suitable polar aprotic or ionic solvent, as well as magnesium batteries in which such electrolytes are incorporated.

Abstract: Described herein are liquid, organosilicon compounds that including a substituent that is a cyano (—CN), cyanate (—OCN), isocyanate (—NCO), thiocyanate (—SCN) or isothiocyanate (—NCS). The organosilicon compounds are useful in electrolyte compositions and can be used in any electrochemical device where electrolytes are conventionally used.

Abstract: An ionic conductor is provided, wherein a composition formula thereof is Li9+xAl3(P2O7)3(PO4)2?x(GeO4)x, wherein x is a range of 0<x?2.0.

Abstract: A three-dimensional electrode array for use in electrochemical cells, fuel cells, capacitors, supercapacitors, flow batteries, metal-air batteries and semi-solid batteries.

Abstract: The disclosure relates to new compositions comprising an, B12FxH12?x? anion that may be prepared chemically or electrochemically by oxidation of B12FxH12?x2? salts. This anion can be generated electrochemically in a voltammetry experiment, or by chemically by treatment of the (2?) anions with powerful oxidants such as XeF2 or NO2(+) salts. The new compositions can be used as 1 electron chemical oxidants and in electrochemical cells such as lithium ion batteries where their formation at elevated potential can serve to limit the upper limit of voltage during the overcharge of such a cell.