Abstract: Disclosed is a control system for a fuel cell system that includes at least two or more fuel cell groups which each have at least one fuel cell connected in parallel. The fuel cell control system comprises: a unit level controller configured to control an output of an individual fuel cell; a group level controller configured to determine the output distribution of the individual fuel cells within the fuel cell group based on the performance decrease rates of the individual fuel cells within the fuel cell group; and a system level controller configured to determine the total output of the fuel cell system according to the power demand for the grid and determine the output distribution for each of the fuel cell groups in correspondence to the total output.

Abstract: A fuel cell system includes a plurality of fuel cell stacks, a power generation control unit that controls power generation of the plurality of fuel cell stacks based on a required power for the plurality of fuel cell stacks, and a refreshing control unit configured to perform a refreshing process of decreasing a voltage on the plurality of fuel cell stacks. The refreshing control unit performs the refreshing process on the first fuel cell stack when the required power changes from a state in which the required power is less than a first predetermined value to a state in which the required power is equal to or greater than the first predetermined value and when the required power is in a range which is equal to or greater than the first predetermined value and less than the second threshold value.

Abstract: Techniques regarding a thin film battery, which can comprise one or more sealing layers, and a method of manufacturing thereof are provided. For example, one or more embodiments described herein can regard an apparatus that can comprise a thin film battery cell encapsulated in a multi-layer stack comprising an adhesive layer located between a first substrate layer and a second substrate layer. The apparatus can also comprise a metal sealing layer at least partially surrounding the multi-layer stack.

Abstract: A system includes a canister and a fuel cell. The canister defines an internal volume configured to have a hydride bed positioned therein. The canister includes at least 1.0 kWH/kg of energy based on a heating value of 120 kJ/g of hydrogen present. The hydride bed includes lithium aluminum hydride, aluminum hydride, or a combination thereof. The hydride bed is configured to release hydrogen gas when heated to a predetermined temperature. The fuel cell is configured to receive the hydrogen gas from the canister and to use the hydrogen gas as fuel to produce power for a load.

Abstract: An electrode slurry contains (A) a cellulose fiber and (C) an electrode active material, the electrode active material (C) contains at least a silicon particle and may contain a silicon particle and a carbonaceous particle. The slurry may further contain (B) a carboxymethyl-group-containing cellulose ether or a salt thereof. The average fiber length L (1 to 750 ?m) of the cellulose fiber (A) is larger than the average particle size DSi (1 nm to 1 ?m) of the silicon particle as the electrode active material (C). The average particle size ratio L/DSi is 5 to 15,000. The electrode slurry can improve a discharge capacity and is useful for forming an electrode of a non-aqueous secondary battery (lithium-ion secondary battery) that can maintain a high discharge capacity after repeated charging and discharging.

Abstract: Disclosed are a secondary battery and a method for manufacturing the same. According to an embodiment of the present invention, there is provided a secondary battery, including: an exterior material which includes a pouch film and a sealing portion formed at an outer side of the pouch film; and an electrode assembly which includes a plurality of electrode bodies laminated with a separator interposed therebetween and are packaged by the exterior material, wherein a pair of forming portions are formed within the pouch film to house the electrode assembly, and a predetermined interval is formed between the pair of forming portions.

Abstract: A valuable material recovery method includes a discharge step of discharging a lithium-ion battery; a thermal decomposition step of reducing a lithium compound, which is a cathode active material, into a magnetic oxide by thermally treating the lithium-ion battery after being discharged; a crushing step of crushing the lithium-ion battery, after being thermally decomposed, into fragments of a size suitable for wind sorting, allowing part of the magnetic oxide to remain in the aluminum foil; a sieving step of sieving a crushed material to separate the crushed material into an oversized product and an undersized product; a wind sorting step of separating the oversized product into a heavy product and a light product; and a magnetic sorting step of sorting and recovering the aluminum foil with a residue of the magnetic oxide, as a magnetized material, and recovering the copper foil as a non-magnetized material from the light product.

Abstract: An apparatus and method, according to an exemplary aspect of the present disclosure includes, among other things, a battery tray configured to support a plurality of battery cells and at least one cross member positioned between adjacent battery cells. The at least one cross member comprises a base portion that is fixed to the battery tray and an elongated body extending outwardly from the base portion. The elongated body extends from a first end at the base portion to a second end that is opposite the first end, and wherein the first end has a first width and the second end has a second width that is less than the first width.

Abstract: A fuel cell monitoring device includes: an impedance measuring part measuring an impedance at each fuel cell and an impedance at a fuel cell stack as a whole; a water content estimating part calculating a water content estimated value at each fuel cell using a gas diffusion resistance obtained from a measurement result about the impedance at each fuel cell, and calculating a water content reference estimated value indicating a water content in each fuel cell using a gas diffusion resistance obtained from a measurement result about the impedance at the fuel cell stack as a whole; and a determining part detecting at least either the occurrence of deterioration of catalyst in the fuel cell or the occurrence of a distribution failure of reactive gas at the fuel cell by determining based on the magnitude of the water content estimated value relative to the water content reference estimated value.

Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.

Abstract: To counteract the potentially destructive effects of temperature increases in primary batteries during short circuit conditions, a current interrupt may be positioned within an anode conductive path. The current interrupt may comprise a thermoplastic substrate having a low glass transition temperature, and having a conductive coating thereon to form a portion of the anode conductive path. During a short circuit, the temperature within the battery increases above the glass transition temperature of the thermoplastic substrate, thereby causing the current interrupt to deform, thereby degrading the portion of the anode conductive path defined by the current interrupt, decreasing the amount of current flowing through the anode conductive path, and effectively limiting the temperature increase within the battery interior.

Abstract: A fuel cell system includes: a fuel cell; a voltage detector; a current detector; an alternating current signal supply unit; a phase difference calculation unit configured to calculate, based on detected alternating voltage and detected alternating current, a phase difference between the detected alternating current and the detected alternating voltage; and an estimation unit configured to estimate, in accordance with the phase difference, an electric power generation distribution feature amount representing an electric power generation distribution in a cell surface of the fuel cell, with use of a predetermined relationship between the electric power generation distribution feature amount and the phase difference. The electric power generation distribution feature amount includes a value indicating a difference between a maximum value and a minimum value of local current density in the cell surface.

Abstract: A method for predicting the likelihood of coagulation of active material particles contained in a slurry for electrode preparation includes measuring rheological properties before and after the slurry is subjected to a shear. The estimation method enables a prediction of filter clogging with a slurry, and thus makes it possible to estimate the likelihood of filter clogging with a slurry without passing the slurry directly through the filter, thereby improving the efficiency of a battery manufacturing process.

Abstract: Embodiments of the present disclosure provide a control modular assembly for a switch. The control modular assembly according to embodiments of the present disclosure comprises: a base housing (203) adapted to carry an operating member for controlling the switch and formed with a base housing notch (206) at an edge of the base housing (203); a first battery (100) being rechargeable and operable to be detachably mounted in the base housing (203) through the base housing notch (206), thereby supplying electric power to the operating member; and a second battery (205) arranged within the base housing (203) to supply electric power to the operating member when the first battery (100) is taken out of the control modular assembly (200), wherein the second battery (205) is chargeable by the first battery (100).

Abstract: A solid electrolyte comprises a compound represented by a formula MgxAl2-yMyOz, where M is at least one selected from the group consisting of Si, Ge, Sn, Pb, Ti, and Zr; 0<x<1; 0.125?y?0.5; and 3.8?z?4.1.

Abstract: An accumulator assembly for a hybrid or electric vehicle may include a plurality of battery cells respectively having mutually opposite bearing faces. The battery cells may be stacked in a stacking direction facing one another with the bearing faces to form a battery block. The assembly may also include a cooling device including a plurality of cooling elements through which a flow of cooling fluid is passable. The plurality of cooling elements may be disposed between neighbouring battery cells and braced in the stacking direction. A respective cooling element of the plurality of cooling elements may at least one of i) include and ii) be formed by a compressible porous intermediate insert having a plurality of pores through which a flow of the cooling fluid is passable. The intermediate insert may be disposed between and connected in a heat-transmitting manner to respective neighbouring battery cells.

Abstract: The present invention relates to a secondary battery and a battery module. The secondary battery includes: a casing including a receiving cavity having an opening; a top cover assembly, and an electrode assembly disposed in the receiving cavity, wherein the electrode assembly includes two end faces disposed opposite to each other in a first direction perpendicular to a depth direction of the receiving cavity, a lug extending from each end face; the lug is a layered structure and has a redundant section near the end face and a connecting section connected to the redundant section; the current collecting member includes a current collecting portion fixedly connected to the connecting section. The lug of the secondary battery of the embodiment of the present invention has the redundant section, which can effectively buffer the movement and reduce the possibility that the lug is torn or broken due to an excessive tensile stress.

Abstract: An air-metal battery utilizes a magnesium anode, a carbon cathode, and a conductive fluid including glycol and water. The anode and cathode are provided in a fuel card assembly that is replaceable as a unit.

Abstract: Embodiments of the invention relate to a secondary battery having symmetric multi-tabs, and the technical problem to be solved is providing a secondary battery capable of increasing the insulation level of first and second multi-tabs by forming the first and second multi-tabs of first and second electrode assemblies to be symmetric to each other. To this end, the present invention provides a secondary battery comprising: a case; a first electrode assembly accommodated inside the case and having first multi-tabs; a second electrode assembly accommodated in parallel with the first electrode assembly inside the case and having second multi-tabs; and a cap plate closing the case and having electrode terminals electrically connected to the first and second multi-tabs of the first and second electrode assemblies, wherein the first and second multi-tabs are formed so as to be symmetrical with respect to the boundary area between the first and second electrode assemblies.

Abstract: An elastomeric cell frame for a fuel cell in which a membrane electrode assembly and gas diffusion layers are formed using a pair of sheet-type elastomeric frames without a specific adhesive member and in which channels for the flow of reaction gas and coolant are formed, may include an insert formed by bonding a pair of gas diffusion layers to both sides of a membrane electrode assembly and an elastomeric frame.