Abstract: A fuel cell system includes first and second fuel cells each generating electric power using fuel gas and oxidant gas, first and second fuel gas supply devices supplying the fuel gas, first and second circulation paths circulating the discharged fuel gas to the first and second fuel cells, a communication path communicated with the first and second circulation paths, an opening/closing device causing the first and second circulation path to be communicated or to be disconnected by opening/closing the communication path, and a controller configured to determine whether there is a possibility of flooding, and when determining that there is the possibility of flooding, suspend power generation of one of the first and second fuel cells while maintaining supply of the fuel gas, and cause the opening/closing device to make the first and second circulation paths be communicated with each other.

Abstract: Provided herein are nanostructured electrode separators comprising metal organic materials capable of attaching to one or more electrodes and electrically insulating at least one electrode while allowing migration of ionic charge carriers through the nanostructured electrode separator. Methods of using such electrode separators include positioning a nanostructured electrode separator between two electrodes of an electrochemical cell.

Abstract: A flow battery having a first tank for an anode electrolyte, a second tank for a cathode electrolyte, respective hydraulic circuits provided with corresponding pumps for supplying electrolytes to specific planar cells, provided with channels at the two mutually opposite faces for the independent conveyance of the electrolyte, mutually separated by a membrane-electrode assembly, the planar cells are provided with a drain channel, all the planar cells constituting a laminar pack, at least one end plate of the laminar pack there being aligned to an end plate provided with at least one drain hole connected to the respective electrolyte tank.

Abstract: Systems, methods, fuel cells, and mixtures to inhibit ionomer permeation into porous substrates using a crosslinked ionomer are described. A method includes preparing an ionomer premix, mixing a crosslinking additive with the ionomer premix to thereby form a crosslinked-ionomer solution, and adding catalyst particles to the crosslinked-ionomer solution to produce a catalyst ink. The ionomer premix includes an ionomer dispersed within a solvent. The catalyst ink includes the catalyst particles distributed homogenously therethrough. The catalyst ink may be cast onto a porous substrate and dried to thereby form a catalyst layer for use in a fuel cell.

Abstract: A cell-tab-cooling type battery may include a plurality of battery cells respectively including tabs for electrical connection from each other, the respective tabs of the plurality of battery cells being aligned in one direction thereof; a plurality of bus bars connected in common to the tabs of the battery cells adjacent to each other among the plurality of battery cells to form an electrical connection between the battery cells; and a plurality of cooling capsules respectively including a coolant and being respectively bonded on the plurality of bus bars.

Abstract: Provided is a catalyst which does not corrode at high potentials or in acidic electrolytes of fuel cells, is stable, effectively participates in electrode reactions not only in a three-phase interface of a gas phase (humidified reaction gas) and a liquid phase formed in catalyst particles present on the surface in contact with an electrolyte membrane but also in a three-phase interface in catalyst particles in a catalyst layer present at positions away from the electrolyte membrane, has a high utilization efficiency of catalyst particles, has a high oxygen reduction ability, provides high characteristics, and is inexpensive compared to platinum. A fuel cell thus obtained has high characteristics and a long life, and is relatively inexpensive and excellent in economic efficiency.

Abstract: An apparatus and method for battery temperature control, the apparatus including a cooling plate, a first transporter selectively moving the cooling plate along a first axis, and a controller operably coupled to the first transporter and selectively outputting a control signal to the first transporter for commanding the first transporter to move the cooling plate to a first location or a second location. The cooling plate comes into contact with an outer surface of the battery by a preset maximum area at the first location, and the cooling plate comes into contact with the outer surface by an area smaller than the maximum area or is separated from the outer surface at the second location.

Abstract: Disclosed are a connector and a battery module. A connector according to an aspect of the present disclosure is a connector configured to electrically interconnect electrode leads of neighboring battery cells.

Abstract: A lithium-air battery is provided, which includes a cathode having a gas diffusion layer containing a solid electronically conductive material coated with carbon black, the gas diffusion layer being at least partially filled with gaseous air, a separator having an electronically nonconducting filter material arranged between the anode and the cathode, the filter material being at least partially impregnated with a liquid electrolyte, and an anode containing a material selected from lithium metal, material alloyable with lithium, metal oxide, and mixtures thereof. Methods for making such battery and the use of such battery in a motor vehicle are also provided.

Abstract: A vehicle battery cooling device adapted to cool a battery pack including a plurality of unit batteries includes: a case that contains a cooling fluid for cooling the battery pack; a pipe which runs inside the case and in which a cooling medium for cooling the cooling fluid is caused to flow; and a control valve that is provided in the pipe and discharges the cooling medium in the case in accordance with a temperature of the battery pack.

Abstract: A positive electrode active material for a non-aqueous electrolyte secondary battery is provided. The positive electrode active material includes a layer-structured, nickel-containing lithium transition metal complex oxide. The lithium transition metal complex oxide contains titanium and niobium in a chemical composition thereof, and has a ratio of a total number of moles of titanium and niobium relative to a total number of moles of metals excluding lithium in the chemical composition of 0.04 or less.

Abstract: A sealing body closes an opening of an energy storage device including an exterior can having the opening. The sealing body includes a metal plate, a gas discharging valve that is integrally formed with the metal plate and that opens when the inner pressure of the energy storage device increases to a predetermined pressure, and a ceramic layer that is disposed on a surface of the metal plate, the surface being an inner surface of the energy storage device, and that is disposed around the gas discharging valve.

Abstract: A positive electrode composition for a non-aqueous secondary battery, including: titanium boride particles; and a positive electrode active material comprising lithium transition metal complex oxide particles that comprise nickel in a composition and have a layered structure. The titanium boride particles comprise an oxygen component in a content of greater than or equal to 1.5 wt % and less than or equal to 2.9 wt %. A content of the titanium boride particles relative to the lithium transition metal complex oxide particles is less than or equal to 1.5 mol % in titanium equivalent terms.

Abstract: A method of manufacturing a membrane electrode assembly, includes: forming catalyst coated membrane using an electrode catalyst layer containing an ionomer having a sulfonic acid group and a catalyst carrier, and an electrolyte membrane; applying an ionization accelerator having a low molecular weight component represented by a chemical formula ClHmOn (where l, m, and n are natural numbers) for accelerating generation of sulfate ions, to the catalyst coated membrane; performing UV irradiation on the ionization accelerator applied to the catalyst coated membrane; heating the catalyst coated membrane having the ionization accelerator subjected to the UV irradiation; and bonding a gas diffusion layer containing a radical inhibiting substance to an outer surface of at least one of the ionization accelerator subjected to the UV irradiation or the catalyst coated membrane.

Abstract: A lithium-air or lithium-oxygen electrochemical generator comprising at least one electrochemical cell comprising a positive electrode, a negative electrode and an electrolyte conducting lithium ions disposed between the negative electrode and the positive electrode wherein the negative electrode comprises, as active material, a lithium and calcium alloy.

Abstract: The present invention provides a stainless steel including 21 to 23% by mass of Cr, 0.2 to 0.4% by mass of Mn, 1.0 to 2.0% by mass of Mo, 0.08 to 2.0% by mass or Al, 0.01 to 0.2% by mass of Ti, and 0.2 to 0.5% by mass of Nb, with the balance being Fe and inevitable impurities; an interconnector of a fuel cell or a base material for holding a cell of a fuel cell made of this stainless steel; and a solid oxide fuel cell including this interconnector or this base material for holding a cell.

Abstract: A secondary battery includes a positive electrode, a negative electrode and an electrolyte containing aqueous electrolyte. The negative electrode is provided with a negative electrode current collector having a compound including aluminum, and a negative electrode active material including titanium on a granule surface of the negative electrode current collector. A ratio of an atomic concentration of aluminum atoms to sum of atomic concentrations of aluminum atoms and titanium atoms on a surface of the negative electrode ({Al atomic concentration/(Al atomic concentration+Ti atomic concentration)}×100) is 3 atm % or more and 30 atm % or less.

Abstract: The present disclosure relates to a method of making core-shell and yolk-shell nanoparticles, and to electrodes comprising the same. The core-shell and yolk-shell nanoparticles and electrodes comprising them are suitable for use in electrochemical cells, such as fluoride shuttle batteries. The shell may protect the metal core from oxidation, including in an electrochemical cell. In some embodiments, an electrochemically active structure includes a dimensionally changeable active material forming a particle that expands or contracts upon reaction with or release of fluoride ions. One or more particles are at least partially surrounded with a fluoride-conducting encapsulant and optionally one or more voids are formed between the active material and the encapsulant using sacrificial layers or selective etching. When the electrochemically active structures are used in secondary batteries, the presence of voids can accommodate dimensional changes of the active material.

Abstract: An electrode structure and its method of manufacture are disclosed. The disclosed electrode structures may be manufactured by depositing a first release layer on a first carrier substrate. A first protective layer may be deposited on a surface of the first release layer and a first electroactive material layer may then be deposited on the first protective layer. Subsequently, the first carrier substrate may be delaminated from the first release layer. The first release layer may then be removed from the first protective layer by dissolution in an electrolyte. The first protective layer may have a low mean peak to valley surface roughness and/or may be thin. In some embodiments, an interface between the first protective layer and the first electroactive material layer has a low mean peak to valley surface roughness. In some embodiments, a thickness of the first protective layer is greater than a mean peak to valley roughness of the first release layer.

Abstract: A temperature detecting device is provided, which includes a housing, a temperature sensor and a fixed part. A battery pack is further provided, which includes two or more battery cells, a heat exchange tube, and the temperature detecting device. The temperature detecting device is fixed to an outer surface of the heat exchange tube, and a temperature detecting surface of the temperature detecting device is fitted to the outer surface of the heat exchange tube.