Abstract: A separator assembly for an air-cooled fuel cell includes: a cathode separator and an anode separator, each of which having a cooling surface bonded to each other to face each other. The separator assembly further includes a plurality of first gaskets having a ring shape configured to surround and seal a plurality of inlet manifolds and a plurality of outlet manifolds are disposed on a cooling surface of any one separator among the cooling surface of the cathode separator and the cooling surface of the anode separator. The plurality of first gaskets are configured to allow cooling air for cooling the cooling surface to flow between first gaskets adjacent to each other.

Abstract: Disclosed is a bipolar battery with which thermal deterioration of the electrode body due to the generation of heat of tabs can be suppressed.

Abstract: A slurry is prepared by mixing a solid electrolyte material, an electrode active material, and a dispersion medium. The eluted amount of a halogen element in the dispersion medium in the slurry is measured. When the eluted amount is within a reference range, the slurry is rated as a good slurry. An electrode is produced by applying the good slurry to a surface of a base material and drying.

Abstract: In one aspect, a thermal management system includes a first coolant circuit, through which a first coolant circulates, and including at least a radiator for cooling the first coolant, a storage containing one or more power electronics, a heat exchanger, and a thermostatic valve that outputs the first coolant to at least one of the storage containing the one or more power electronics and the heat exchanger. A second coolant circuit, through which a second coolant circulates, includes the heat exchanger configured to cool the second coolant using the first coolant, an energy storage unit cooled by the second coolant, and a refrigeration unit configured to cool the second coolant. A coolant temperature sensor outputs a temperature of the coolant in the second coolant circuit, and a controller controls at least the refrigeration unit based on the temperature of the coolant output by the coolant temperature sensor.

Abstract: This disclosure details exemplary battery pack designs for use in electrified vehicles. Exemplary battery packs may include a battery array that includes one or more interconnected array frames. A split thermal fin may be held within the one or more array frames. The proposed designs of the split thermal fin enable a reduction of the amount of thermal interface material required between the thermal fin and a support structure (e.g., a heat exchanger plate) of the battery pack.

Abstract: A lithium ion conductive material has a composition formula of Lia(OH)bFcCldBr1-d, where 1.8?a?2.3, b=a ?c?1, 0<c?0.30, 0<d<1, and includes an antiperovskite-type crystal phase. The lithium ion conductive material is manufactured, for example, by heating LiOH, LiF, LiCl, and LiBr at a temperature not lower than 250° C. and not higher than 600° C. for 0.1 hours or more while stirring them at a molar ratio of 1:X:Y:Z (where 0.03?X?0.3, 0.2?Y<1.1, 0<Z<1) under an Ar gas atmosphere.

Abstract: The present invention relates to an arrangement for cooling of a plurality of electrical energy storage units. The arrangement comprises a tubular element forming a cooling channel for a cooling medium which has an extension between an inlet opening and an outlet opening. The tubular element comprises a first plane wall element and a second plane wall element arranged in parallel at a distance from each other which is smaller than the height of the electrical energy storage units and that the first plane wall element comprises through holes each configured to receive and define a mounting position of an electrical energy storage unit in the cooling channel.

Abstract: A battery electrode includes an electrically conductive sheet and two or more coating layers of an ion transport medium stacked thereon. Each coating layer has a respective two-dimensional array of low porosity regions formed therein, with a remainder of each coating layer that is not the two-dimensional array of low porosity regions defining a respective network of interconnected high porosity regions. Each of the high porosity regions has a feature size D, and an intralayer pitch P is defined between adjacent ones of the high porosity regions of each coating layer, with each pair of adjacent two-dimensional arrays having a respective alignment error E therebetween. A respective first electrically conductive path is formed thereacross via the networks of high porosity regions when D?E?P, with a second electrically conductive path being formed across all of the coating layers via the networks of high porosity regions.

Abstract: A secondary-battery electrode manufacturing method that allows a secondary-battery electrode including a neat linear cut portion to be stably manufactured at a high speed is provided. A method of manufacturing a secondary-battery electrode (10), which is an example of an embodiment, comprises a first step of forming an active material layer (22) on at least one surface of a long core body (21). The method of manufacturing the secondary-battery electrode (10), which is an example of the embodiment also comprises a second step of cutting an electrode precursor (20) into a predetermined shape by using a continuous wave laser, the electrode precursor (20) being the long core body (21) having the active material layer (22) formed thereon.

Abstract: A temperature detection element is allowed to more accurately detect a temperature of a battery pack. A battery pack includes: a battery cell; a temperature detection element; and a thermally conductive member transferring heat of the battery cell to the temperature detection element.

Abstract: A lithium ion conducting protective film is produced using a layer-by-layer assembly process. The lithium ion conducting protective film is assembled on a substrate by a sequential exposure of the substrate to a first poly(ethylene oxide) (PEO) layer including a cross-linking silane component on the first side of the substrate, a graphene oxide (GO) layer on the first PEO layer, a second poly(ethylene oxide) (PEO) layer including a cross-linking silane component on the GO layer and a poly(acrylic acid) (PAA) layer on the second PEO layer. The film functions as a lithium ion conducting protective film that isolates the lithium anode from the positive electrochemistry of the cathode in a lithium-air battery, thereby preventing undesirable lithium dendrite growth.

Abstract: Embodiments of the invention relate to a membrane-electrode assembly comprising a membrane structure with an anode layer, a cathode layer, and a membrane layer, wherein the membrane layer is positioned between the anode layer and the cathode layer. The membrane-electrode assembly furthermore comprises an anode-side gas-diffusion layer arranged on the anode layer and a cathode-side gas-diffusion layer arranged on the cathode layer. Furthermore, at least one of the anode-side gas-diffusion and the cathode-side gas-diffusion layers has a structure on the side facing away from the membrane structure. According to some embodiments, the structure comprises a plurality of columns for forming a laterally-open flow field, wherein the columns have support surfaces for supporting a bipolar plate.

Abstract: A main object of the present disclosure is to provide a liquid electrolyte in which concentration of active fluoride ion is high. The present disclosure achieves the object by providing a liquid electrolyte to be used in a fluoride ion battery, the liquid electrolyte comprising: a potassium fluoride; an alkali metal amide salt including a cation of an alkali metal and an amide anion; and a glyme represented by a general formula R1—O(CH2CH2O)n—R2, in which R1 and R2 is each independently an alkyl group including 4 or less carbon atoms or a fluoroalkyl group including 4 or less carbon atoms, and n is within a range of 2 to 10.

Abstract: This specification describes a system and method for controlling the voltage produced by a fuel cell. The system involves providing a bypass line between an air exhaust from the fuel cell and an air inlet of the fuel cell. At least one controllable device is configured to allow the flow rate through the bypass line to be altered. A controller is provided to control the controllable device. The method involves varying the rate of recirculation of air exhaust to air inlet so as to provide a desired change in fuel cell voltage.

Abstract: A cylindrical rechargeable battery including a positive electrode, a negative electrode, and a separator is provided. The positive electrode includes a positive electrode tab, and a piezoelectric element and a thermoelectric element are formed at edges of the positive electrode tab.

Abstract: A method of producing a wet mixture includes a stirring and mixing process in which lithium-containing positive electrode active material particles having surplus lithium compounds on the surface and crystalline ferroelectric ceramic particles are dried, stirred and mixed to obtain a mixed powder; and a solution mixing process in which a lithium conductor forming solution is mixed with the mixed powder to obtain a wet mixture containing coated lithium-containing positive electrode active material particles having a coating which is made of an amorphous lithium conductor and in which the ferroelectric ceramic particles are dispersed on the surface of the lithium-containing positive electrode active material particles.

Abstract: A lithium air battery including a composite cathode including a porous material and a first solid electrolyte; a lithium metal anode; an oxygen blocking layer adjacent to the anode; and a cathode interlayer disposed between the cathode and the oxygen blocking layer, wherein the cathode interlayer includes a lithium ion conducting second solid electrolyte.

Abstract: A cell pack includes a plurality of unit cells arranged in an arrangement direction and a restraint mechanism for restraining these unit cells. The restraint mechanism includes: a first end plate portion disposed at an end portion in a first direction of the arrangement direction of the plurality of unit cells; a second end plate portion disposed at an end portion in a second direction of the arrangement direction of the plurality of unit cells; and a ring-shaped restraining hoop portion. A dimension in the arrangement direction between the first end plate portion and the second end plate portion of the restraining hoop portion is set such that a predetermined restraining pressure is applied in a direction of compressing the plurality of unit cells along the arrangement direction.

Abstract: Disclosed and described herein are systems and methods of energy generation from fabric electrochemistry. An electrical cell is created when electrodes (cathodes and anodes) are ‘printed’ on or otherwise embedded into fabrics to generate DC power when moistened by a conductive bodily liquid such as sweat, wound, fluid, etc. The latter acts, in turn, as the cell's electrolyte. A singular piece of fabric can be configured into multiple cells by dividing regions of the fabric with hydrophobic barriers and having at least one anode-cathode set in each region. Flexible inter-connections between the cells can be used to scale the generated power, per the application requirements.

Abstract: Described herein are methods, air cathodes or electrochemical cell systems configured to reduce or alleviate leakage of electrolyte within air cathodes. A method for electrolyte leakage management in an electrochemical cell system includes: configuring a plurality of air cathodes within an electrochemical cell system, each of the plurality of air cathodes comprising a frame, a membrane oxygen electrode attached to the frame to define a sealed interior cavity, an air inlet communicative with the interior cavity, a liquid outlet communicative with the interior cavity; positioning the liquid outlet lower than the air inlet; and draining electrolyte leakage from the interior cavity through the liquid outlet.