Abstract: Fuel cell assemblies comprising at least one thermally compensated coolant channel are provided. The thermally compensated coolant channel has a cross-sectional area that decreases in the coolant flow direction along at least a portion of the channel length. In some embodiments, such thermally compensated coolant channels can be used to provide substantially uniform heat flux, and substantially isothermal conditions, in fuel cells operating with substantially uniform current density.

Abstract: The present invention relates to a thermosetting electrolyte composition for a lithium secondary battery, a gel polymer electrolyte prepared therefrom, and a lithium secondary battery including the gel polymer electrolyte, and particularly, to a thermosetting electrolyte composition for a lithium secondary battery, which includes LiPF6 as a first lithium salt, a second lithium salt excluding the LiPF6, a non-aqueous organic solvent, and a polymer or oligomer containing a unit represented by Formula 1, a gel polymer electrolyte prepared therefrom, and a lithium secondary battery including the gel polymer electrolyte.

Abstract: This application relates to the battery field, and discloses a battery module and an electric vehicle using the battery module. The battery module includes a battery, a plugging member, and a temperature collection assembly. The battery includes a housing and a cover plate connected to the housing, where the cover plate is provided with a temperature collection hole. The plugging member includes an insertion portion that is installed in the temperature collection hole, and the insertion portion is provided with an accommodating cavity extending into an interior of the housing. The temperature collection assembly includes a temperature collection portion installed inside the accommodating cavity. According to this application, the temperature collection assembly collects a temperature inside the housing via the plugging member in the temperature collection hole. In this way, temperature collection is more accurate, a thermal conductive path is short, and a temperature collection response speed is fast.

Abstract: The present specification relates to a battery, comprising an anode, a cathode, an electrolyte disposed between the anode and the cathode, a halogen in contact with the cathode, and a metal in contact with the anode, wherein the halogen is in contact with a polymeric halogen sequestering agent (HSA) which is a polymer comprising a moiety capable of sequestering the halogen.

Abstract: There is provided an air battery including a first housings accommodating a base cell including a negative electrode, a positive electrode, and a separator disposed between the negative electrode and the positive electrode, and a second housing containing an electrolyte solution or water, in which the first housing and the negative electrode each have a hole leading to the separator, the second housing has a hole that is capable of being sealed, and the first housing and the second housing are disposed to face the hole of the first housing and the hole of the second housing each other.

Abstract: The disclosure relates to the technical field of traction batteries, and in particular to a battery pack and a vehicle comprising the battery pack. The invention aims at the problem of large heat loss in the existing traction battery in a low-temperature environment. To this end, the battery pack of the disclosure comprises: a frame internally formed with an installation site; a battery module mounted in the installation site and comprising a number of cells; and a side beam connected to an outer side wall of the frame and made of a first thermal insulation material. The above arrangement can reduce the heat transfer coefficient of natural convection between the side wall of the frame and the environment, and reduce the heat flux, thereby reducing the temperature loss of the cells.

Abstract: The present invention provides an electrolyte membrane for a redox flow battery, comprising a perfluorocarbon polymer having an ion-exchange group, wherein the perfluorocarbon polymer has equivalent weight EW of the ion-exchange group of 600 g/eq or more and 2000 g/eq or less, a craze area ratio of the electrolyte membrane is 1.5% or less, and a relative dimension of the electrolyte membrane in at least one of a X direction and a Y direction is 80% or more and less than 100% in the following relative dimension by dipping in 2 M aqueous sulfuric acid solution.

Abstract: A battery pack includes a pack case configured to form an appearance, a plurality of battery modules configured to include at least one battery cell; at least one insulation member provided between the plurality of battery modules; and an energy drain unit spaced apart from the insulation member and connected to any one battery module, the energy drain unit being configured to externally short-circuit any one battery module when thermal runaway occurs in at least one battery module.

Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.

Abstract: Provided is an air electrode/separator assembly including: a hydroxide ion conductive dense separator; an interface layer containing a hydroxide ion conductive material and an electron conductive material and covering one side of the hydroxide ion conductive dense separator; and an air electrode layer provided on the interface layer and including an outermost catalyst layer composed of a porous current collector and a layered double hydroxide (LDH) covering a surface thereof. The outermost catalyst layer has a porosity of 60% or more.

Abstract: A vapor-compression multi-evaporator cooling system comprises a cooling control system and two or more evaporators each coupled to an expansion valve. Each evaporator is selectively enabled or disabled during operation. When an evaporator is enabled, the evaporator transfers heat into a working fluid within the system. When an evaporator is disabled, the evaporator does not exchange any appreciable amount of heat within the system. The cooling control system includes a cooling controller, an adjustable compressor, a condenser, and a variable speed fan that provides selectable amounts of cooling to the condenser. During operation, the cooling controller adjusts the compressor operation and fan speed to maintain stable operation of the cooling system. To compensate for enabling or disabling of evaporators, the cooling controller adjusts compressor operation and fan speed to provide more or less compression and more or less condenser cooling to maintain stable and efficient operation of the cooling system.

Abstract: A battery cell includes a first electrode formed from at least one of a metal foil, a metal mesh or a metal layer on a substrate. A second electrode can be formed from at least partially oxidized material in a form of at least one of a metal foil, a metal layer on a substrate, a metal mesh, or a battery electrode that includes plurality of particles on current collector. A layer of an ion exchange material can be positioned between the first and second electrodes, with the ion exchange material capable of acting as an electrolyte in some embodiments.

Abstract: An apparatus for a fire suppressant system on a server rack includes an integrated battery feature, a manifold, a conduit, and a control card, where the integrated battery feature includes a plurality of battery cells in an enclosure. A first end of the conduit coupled to a control valve on the manifold and a second end of the conduit coupled to the integrated battery feature. The control card configured to open the control valve on the manifold, where the control valve is configured to release a fire suppressant into the enclosure of the integrated battery feature. In one embodiment, the fire suppressant is contained within a pressurized fire suppressant reservoir mounted on the server rack. In another embodiment, the fire suppressant is a cooling fluid diverted from a radiator cooling unit on the server rack.

Abstract: Battery separators and methods are disclosed. The battery separator may be used in a lithium battery. The separator may include a microporous membrane laminated to a coated nonwoven. The coating may contain a polymer and optionally, a filler or particles. The methods may include the steps of: unwinding the microporous membrane and the nonwoven, laminating the nonwoven and microporous membrane, and coating the nonwoven before or after lamination.

Abstract: A battery cell that has a supply edge to which an electrolyte solution is supplied and a discharge edge from which the electrolyte solution is discharged has an introduction port that is in connection with the supply edge and a discharge port that is in connection with the discharge edge, and includes a plurality of meandering flow paths. Each of the meandering flow paths has an introduction-side section extending from the introduction port toward a discharge edge side, a turn-back section that is turned back from an end portion on the discharge edge side of the introduction-side section toward a supply edge side, and a discharge-side section reaching the discharge port from an end portion on the supply edge side of the turn-back section. The turn-back section has at least one of: an inclined portion extending in an oblique direction, and a stepped portion formed in a step shape.

Abstract: A separator plate for an electrochemical system, comprising: at least one of the flanks of the bead assembly has a multiplicity of passages for directing a medium through the bead flank, and a distributing or collecting structure has a multiplicity of line ducts and a multiplicity of openings, wherein the line ducts adjoin the passages in the bead flank on an external side of the bead assembly, wherein the openings are disposed on a side of the distributing or collecting structure that faces away from the bead assembly and, are fluidically connected to a bead interior.

Abstract: A battery cell system includes a plurality of battery cells having an annular shape abutting one another to form a battery cell stack with an annular shape to facilitate cooling. The battery cell system includes a stack interface having an annular housing operatively connected to the plurality of battery cells. A cooling loop is defined about the battery cell stack and the stack interface and through central through holes of the battery cell stack and the stack interface.

Abstract: An object of the invention is a thermal management device (1) for a battery, including an extruded plate (2). The extruded plate (2) comprises a first channel (13) and a second channel (23), configured to allow a flow of a coolant. The extruded plate (2) also includes at least one encapsulation cavity (33), intended to be filled by a Phase Change Material. The first channel, the second channel and the encapsulation cavity extend between a front face (10) and a rear face (20) of the extruded plate (2). The device comprises an inlet/outlet cap (40), connected to the front face (10) and a diverting cap (50,50?), connected to the rear face (20). Both caps provide plugs of each encapsulation cavity. The diverting cap forms a connecting channel (52i,52s), connecting the first channel (13) to the second channel (23).

Abstract: Provided herein is a redox flow battery comprising an anode comprising anodic redox mediators; a negative electrolyte tank comprising an anolyte; and an anode pump capable of circulating the anolyte through the anode. The redox flow battery further comprises a cathode comprising cathodic redox mediators; a positive electrolyte tank comprising a catholyte and a cathode pump capable of circulating the catholyte through the cathode. A separator is between the anode and cathode.

Abstract: A hybrid energy storage device has at least two half cells, wherein each half cell includes an electrode comprising an electrically conductive high surface area material incorporating an electrolyte comprising a dissolved species that can exist in more than two redox states, and at least one separator that separates the at least two half cells and allows transfer of selected charge carriers between the half cells. After an initial charging, a redox pair of one half cell is different from the redox pair of the other half cell. The hybrid energy storage device operates as a battery for low power applications, and as a supercapacitor for high power applications. The hybrid energy storage device may be flexible.