Abstract: A battery pack includes an assembled battery, a battery case, a first temperature sensor and a second temperature sensor. The assembled battery has three or more battery cells electrically connected in series with each other. The battery case has the assembled battery received therein so that the assembled battery is partially exposed to outside of the battery case. The first temperature sensor is provided to detect the temperature of a most-exposed one of the three or more battery cells. The most-exposed battery cell has a maximum exposed area to the outside of the battery case among all of the three or more battery cells. The second temperature sensor is provided to detect the temperature of a least-exposed one of the three or more battery cells. The least-exposed battery cell has a minimum exposed area to the outside of the battery case among all of the three or more battery cells.

Abstract: Provided is a carbon foam and a membrane electrode assembly having linear portions and node portions joining the linear portions; and a carbon foam and a membrane electrode assembly having linear portions and node portions joining the linear portions, where the carbon content is 51 mass % or more, and the mean deviation of coefficient of friction by the Kawabata evaluation system method is 0.006 or less.

Abstract: A method of controlling voltage of a fuel cell includes steps of: determining whether a mode is a high-voltage avoidance mode of the fuel cell; controlling a fuel cell stack voltage to be at a predetermined reference value or less when the mode is the high-voltage avoidance mode of the fuel cell; monitoring individual cell voltages of the fuel cell and determining whether a maximum value of the monitored individual cell voltages exceeds a predetermined individual value; reducing a reference value of the fuel cell stack voltage when the maximum value of the monitored individual cell voltages exceed the predetermined individual value; and controlling the fuel cell stack voltage at the reduced reference value or less. The method and system for controlling fuel cell voltage is provided to secure durability and performance of individual cells of a fuel cell stack.

Abstract: A battery having a protective isolation structure is disclosed comprising a first current collecting layer, a first active material layer, a spacer layer, a first glue frame, a second active material and a second current collecting layer. The first active material layer is disposed on the first current collecting layer. The spacer layer is disposed on the first active material layer. The area of the spacer layer is smaller than the area of the first active material layer so that a part of the first active material layer is exposed outside the spacer layer. The first glue frame is covering the top surface of the first active material layer exposed from the spacer layer and has a protrusion disposed on the surface of the spacer layer. The second active material layer is disposed on the surface of the spacer layer and the protrusion. The second current collecting layer is disposed on the second active material layer.

Abstract: The present disclosure provides a battery module and a battery pack. The battery pack comprises a box and a battery module, the battery module is accommodated in the box. The battery module comprises batteries sequentially arranged in a first direction. The battery comprises an electrode assembly, a case and a cap assembly, the electrode assembly is received in the case, and the cap assembly is connected with the case. The case comprises two first side walls, and the two first side walls are respectively positioned at two sides of the electrode assembly in the first direction. The first side walls of two adjacent batteries face each other. An area of the first side wall is defined as S1, a distance between the electrode assemblies of two adjacent batteries in the first direction is defined as D, S1 and D satisfying a relationship: 1.2×10?5 mm?1?D/S1?500×10?5 mm?1.

Abstract: A vehicle battery safety sensor system providing liquid detection inside a battery pack includes a battery pack having a structure defining a battery cell bay receiving a battery. A first sensor is mounted to the structure proximate to a low point area of the battery cell bay for sensing an operating condition within the low point area of the battery cell bay. A second sensor is mounted to the structure elevated above the first sensor for sensing an operating condition above the low point area of the battery cell bay. A safety module processes signals received from the first sensor and the second sensor and identifies if the operating condition within the low point area of the battery cell bay defines a fluid present in the low point area of the battery cell bay.

Abstract: A secondary battery includes: a case including an internal receiving space and having an opening; an electrode assembly accommodated in the internal receiving space of the case; a cap plate coupled to the opening of the case; and a terminal coupled to the cap plate and electrically connected to the electrode assembly, and the terminal includes a terminal region integrally formed with the cap plate, a membrane on a bottom surface of the terminal region and being downwardly convex, and a pressure indicator pin on a top surface of the membrane.

Abstract: A rechargeable lithium battery includes an electrolyte, a negative electrode, and a positive electrode. The negative electrode includes a negative active material layer on a negative current collector, and includes a carbon-based negative active material. The negative electrode having a Degree of Divergence (DD) value of about 19 to about 60. The positive electrode includes a positive active material layer and a positive current collector, and includes a positive active material and a porous structured additive. The content of the porous structured additive is about 0.01 wt % to about 2 wt % based on 100 wt % of the positive active material layer.

Abstract: The present invention is intended to provide a rolled copper foil for a secondary battery negative electrode current collector which can satisfactorily suppress rupture of the copper foil caused by stress generation or the like due to volume change of an active material. A rolled copper foil for a secondary battery negative electrode current collector, wherein a tensile strength in a direction parallel to the rolling direction is 600 MPa or more, and a breaking elongation in the direction parallel to the rolling direction is 2.0% or more; and wherein a tensile strength in a direction orthogonal to the rolling direction is 640 MPa or more, and a breaking elongation in the direction orthogonal to the rolling direction is 3.5% or more.

Abstract: A battery pack and a method for manufacturing the same, and more particularly, to a battery pack includes a top cap having a hook protrusion for protecting a PCB connected to a pouch-type battery cell and a method for manufacturing the same.

Abstract: A system for removing carbon dioxide from anode exhaust gas that has been compressed to form pressurized anode exhaust vapor includes a feed/effluent heat exchanger configured to cool the anode exhaust vapor to a first predetermined temperature and partially condense carbon dioxide in the anode exhaust vapor; a first vapor-liquid separator configured to receive an output of the feed/effluent heat exchanger and separate liquid carbon dioxide from uncondensed anode exhaust vapor; a feed/refrigerant heat exchanger configured to receive the uncondensed anode exhaust vapor from the first vapor-liquid separator, cool the uncondensed anode exhaust vapor to a second predetermined temperature, and condense carbon dioxide in the uncondensed anode exhaust vapor; a second vapor-liquid separator configured to receive an output of the feed/refrigerant heat exchanger and separate liquid carbon dioxide to form hydrogen rich, uncondensed anode exhaust vapor.

Abstract: Provided is a battery pack, and more particularly, a battery pack capable of preventing degradation of performance at a low temperature by allowing a portion of air exhausted through an exhaust port to be introduced into an inhalation port to optimize a temperature of external air introduced into a cell module.

Abstract: A current collector for an electrochemical cell is described. Unlike conventional current collector designs, the current collector does not have an unperforated perimeter frame completely bordering or surrounding a perforated interior region. Instead, only that portion of the current collector adjacent to the connector tab is unperforated. Otherwise, perforations extend directly to the perimeter edge.

Abstract: Provided is a liquid electrolyte for lithium ion batteries, which shows an increased oxidation-side potential in a potential window than ever before. A liquid electrolyte for lithium ion secondary batteries, the liquid electrolyte containing a lithium salt of a sulfonimide and water, wherein the liquid electrolyte contains at least one kind of anion selected from the group consisting of an orthophosphoric ion, a pyrophosphate ion, an anion resulting from dissociation of phosphorous acid or a salt thereof, and an anion resulting from dissociation of phosphinic acid or a salt thereof.

Abstract: A method is provided for controlling a hydrogen cut-off valve, which may be provided on a hydrogen supply line of a fuel cell system, in driving a fuel cell vehicle mounted with a hydrogen supply line including a high-pressure tank storing hydrogen, a hydrogen supply valve, and a hydrogen cut-off valve. The method includes: a step (a) of measuring a duty applying to the hydrogen supply valve and a step (b) of comparing the duty with a predetermined duty, in which when the duty is equal to or more than the predetermined duty, it is determined that the hydrogen supply line between the high-pressure tank and the hydrogen supply valve is abnormal.

Abstract: A heat exchanger and battery unit structure is provided for cooling battery units (or cells) where the thermally conductive nature of the battery forms a cooling path. The heat exchanger is in the form of a cooling element provided with an engaging device formed on or attached to an outer surface of the cooling plate for receiving a battery unit (or cell). The interconnection between the battery unit (or cell) and heat exchanger creates a mechanical interlock between the two components that results in improved heat transfer properties between the two components.

Abstract: An electrochemical cell includes a housing, and an electrode assembly disposed in the housing. The electrode assembly comprises a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode. The housing is formed of a first case half and a second case half. Each case half is formed of a metal foil laminate material and includes a wedge-shaped central recess that is surrounded by a flange. The flange of the first case half is joined to the flange of the second case half along a seal line that surrounds the respective central recesses. The central recesses cooperate to define an interior space of the housing that contains the electrode assembly, and the interior space has the shape of a rectangular prism. The seal line extends along a diagonal of a side of the rectangular prism. A method of forming the housing is described.

Abstract: Disclosed is a porous support including fine porous structures formed between nanofibers, wherein the fine porous structures have a porosity of 50% to 90%, a pore size of 0.01 ?m to 10 ?m and an air permeability of 0.01 to 7 sec/100 cc·air, and the porous support has a thickness of 5 ?m to 50 ?m, a method of manufacturing the same and a reinforced membrane including the same.

Abstract: Various examples provide a secondary battery having a positive electrode terminal-and-membrane integrated cap plate, which can cut off a charging current in an overcharge mode by integrating a positive electrode terminal and a membrane into the cap plate, and can cut off a short-circuit current in an external short-circuit mode by placing a fuse in a region of the membrane connected to the current collector plate. In one example embodiment, the secondary battery may include a case having an opening, an electrode assembly housed in the opening of the case housed in the opening of the case, and a cap plate coupled to the opening of the case, wherein the cap plate may include a terminal portion integrated into the cap plate, and a membrane integrated into the terminal portion to be electrically connected to the electrode assembly.

Abstract: An electrochemical cell including a positive electrode (e.g., a cathode) and a negative electrode (e.g., an anode), at least one of which includes an integrated ceramic separator. An integrated ceramic separator may include a plurality of ceramic particles. In some examples, an interlocking region may be disposed between the integrated ceramic separator layer and a corresponding electrode layer, the region including a non-planar boundary between the two layers. In some examples, the electrochemical cell includes a polyolefin separator disposed between the positive electrode and the negative electrode. In some examples, both the positive electrode and the negative electrode include an integrated ceramic separator. In these examples, the positive electrode and the negative electrode may be calendered together such that the integrated separator layers merge and become indistinguishable from each other.