Abstract: The invention concerns a method for manufacturing of an electrocatalyst comprising a porous carbon support material, a catalytic material in the form of at least one type of metal, and macrocyclic compounds chemically bound to the carbon support and capable of forming complexes with single metal ions of said metal or metals, said method comprising the steps of: i) providing a template capable of acting as pore structure directing agent during formation of a highly porous electrically conducting templated carbon substrate, ii) mixing the template with one or several precursor substances of the catalytic material, the macrocyclic compounds and carbon, iii) exposing the mixture of the template and the precursor substances to a carbonization process during which the precursors react and transform the mixture into a carbonized template composite in winch the carbon part of the composite is chemically bound to macrocyclic compounds present in complexes with the metal or metals.

Abstract: To provide a high-voltage fuel cell. The fuel cell is a fuel cell comprising an anode-side gas diffusion layer, an anode catalyst layer, an electrolyte membrane, a cathode catalyst layer and a cathode-side gas diffusion layer in this order, wherein a gas diffusion resistance ratio of the anode-side gas diffusion layer to the cathode-side gas diffusion layer is more than 1.50 and less than 2.79; wherein a gas diffusion resistance value of the cathode-side gas diffusion layer is 84 S/m or less at a relative humidity of 165%; and wherein a gas diffusion resistance value of the anode-side gas diffusion layer is less than 234 S/m at a relative humidity of 165%.

Abstract: A fuel cell system component ink includes a fuel cell system component powder, a solvent including propylene carbonate (PC), and a binder including polypropylene carbonate (PPC).

Abstract: An all-solid-state battery comprises a lithium anode, a cathode, solid electrolyte and a protective layer between the solid electrolyte and the lithium anode. The protective layer comprises an ion-conducting material having an electrochemical stability window against lithium of at least 1.0 V, a lowest electrochemical stability being 0.0 V and a highest electrochemical stability being greater than 1.0 V. More particularly, when the solid electrolyte is LiSiCON, the electrochemical stability window is at least 1.5 V, the lowest electrochemical stability is 0.0 V and the highest electrochemical stability is greater than 1.5 V. When the solid electrolyte is sulfide-based, the electrochemical stability window is at least 2.0 V, the lowest electrochemical stability is 0.0 V and the highest electrochemical stability is greater than 2.0 V.

Abstract: Provided are an electrode lead wire member including a sealing film having high adhesive strength and resistance to an electrolytic solution, and a battery including the electrode lead wire member. Provided is an electrode lead wire member including: a derivation portion extending in one direction; a surface-treated layer formed, at the derivation portion, on a surface of the derivation portion; and a sealing film provided in contact with the surface-treated layer, in which the sealing film has an adhesive resin layer in contact with the surface-treated layer, and the adhesive resin layer contains imine-modified polyolefin or modified polyolefin having a carbodiimide group.

Abstract: An electrode material manufacturing method is a method for manufacturing an electrode material (50) of an all-solid-state battery, and the method includes: the step of preparing a coated active substance to prepare a coated active substance (10) containing a positive electrode active substance 11 and a coating layer (12) of an oxide-based solid-electrolyte that covers at least a portion of a surface thereof; the step of first compositing to manufacture a first composite material (20) by covering at least a portion of a surface of the solid electrolyte (21) with a conductive auxiliary agent (22); the step of second compositing to manufacture a second composite material (40) by covering a surface of the coated active substance (10) with the first composite material (20); and the step of mixing the second composite material (40), the conductive auxiliary agent (22), and the solid electrolyte (21) to manufacture an electrode material (50).

Abstract: Discussed is a battery module, including at least one battery cell, a pair of pressing plates respectively disposed at opposite side surfaces of the at least one battery cell, and a module cover coupled to the pair of pressing plates to cover an upper side or a lower side of the at least one battery cell, wherein opposite ends of the module cover overlap an upper end or a lower end of the pair of pressing plates, and have a plurality of welding portions and a plurality of auxiliary welding beads alternately arranged along a longitudinal direction of the module cover, and wherein the opposite ends of the module cover are welded to the pair of pressing plates at the plurality of welding portions.

Abstract: According to one embodiment, provided is a secondary battery including a negative electrode containing a titanium-containing oxide, a positive electrode, a separator between the negative electrode and the positive electrode, a first aqueous electrolyte, a second aqueous electrolyte, and a third aqueous electrolyte. The first aqueous electrolyte is held in the negative electrode and contains 0.001% by mass to 0.5% by mass of zinc ions. The second aqueous electrolyte is held in the separator and contains 1% by mass to 5% by mass of a first compound that includes a hydrophobic portion and a hydrophilic portion. The third aqueous electrolyte is held in the positive electrode.

Abstract: A cell count determination device is configured to determine a cell count of a battery pack having installed therein a plurality of battery cells. The cell count determination device includes a plurality of switch elements provided in association with the plurality of battery cells, which can be increased or decreased in number in the battery pack. Each of the switch elements is configured to enter a conductive state if, while connected to the battery pack, a corresponding battery cell is present, and enter a non-conductive state if the corresponding battery cell is not present. The cell count determination device further includes a determination unit that is configured to determine the cell count of the connected battery pack on the basis of a combination of conductive states and non-conductive states among the plurality of switch elements.

Abstract: To provide a fuel cell system capable of evaluating degradation of an electrolyte membrane by quantifying metal ions involved in degradation of an electrolyte membrane instead of evaluating degradation of an electrolyte membrane itself. A fuel cell system comprising a fuel cell, a fuel gas system for supplying fuel gas to an anode of the fuel cell, an oxidant gas system for supplying oxidant gas to a cathode of the fuel cell, a voltage detector for detecting a voltage of the fuel cell, and a controller.

Abstract: Disclosed is a catalyst layer for a fuel cell that has good gas diffusion properties in the entire catalyst layer and in which coarsening of catalyst particles can be suppressed. The catalyst layer for a fuel cell includes fibrous conductive members and catalyst particles. The fibrous conductive members are inclined relative to the surface direction of the catalyst layer, and the length L of the fibrous conductive members and the thickness T of the catalyst layer satisfy the relational expression: L/T?3. Each of the catalyst particles includes a core portion and a shell portion that covers the core portion, and contains a component different from that of the core portion.

Abstract: A battery monitoring system for a battery pack having battery cells including a test cell and a reference voltage. The battery monitoring system includes built-in-test circuitry associated with the test cell. The built-in-test circuitry has a monitoring control operable to permit electric current between the reference voltage and the test cell and an enabling control operable to permit electric current between the reference voltage and the test cell. The battery monitoring system also includes battery monitoring circuitry having cell monitoring voltage interfaces configured to receive cell voltages associated with the battery cells and a built-in-test interface operable upon actuation by the battery monitoring circuitry to operate the monitoring control. A method for operating circuitry associated with the battery monitoring system is also provided.

Abstract: A solid electrolyte includes a compound having an argyrodite crystal structure represented by Formula 1, LiaMxPSbBrcXd.??Formula 1 wherein Formula 1, M is Na, K, Fe, Mg, Ca, Ag, Cu, Zr, Zn, or a combination thereof; X is Cl, I, or a combination thereof; and 0?x<1, 5?(a+x)<7, 5?a?6, 4?b?6, 0<(c+d)?2, and (c/d)>4.

Abstract: The invention provides a thermal management device for energy storage system, a method for controlling the thermal management device for energy storage system, and an energy storage system, wherein the thermal management device for energy storage system comprises a heat dissipation system, a temperature transducer, a data acquisition module, a management module and a data interaction module; the heat dissipation system comprises refrigerant circulating heat exchange components for heat dissipation of energy storage system, wherein the refrigerant circulating heat exchange components perform heat exchange through phase change of refrigerant; the data acquisition module is connected with the temperature transducer, and is used for acquiring the external environment temperature and the working environment temperature of energy storage system; the management module is used for conducting heating value analysis of energy storage system, and then performing heat dissipation control and management according to the h

Abstract: A battery system includes a plurality of battery modules, each of the battery modules including a plurality of stacked battery cells and a battery module monitor (BMM) configured to monitor the respective battery cells; a battery system monitor (BSM) configured to communicate with and control the BMMs; a housing enclosing the battery modules and the BSM, the battery modules being arranged in the housing such that a swelling compensation channel is formed between the battery module and the housing; and an optical communication system (OCS) configured to connect the BSM with the BMMs via optical signals propagating along the swelling compensation channel.

Abstract: An electrolyte station is used for electrolyte replacement in a redox flow battery that is mounted to a vehicle. The electrolyte station includes: a stand that includes a connector that connects to a connection socket that connects to an electrolyte tank in the redox flow battery; a recovery tank that stores a recovered electrolyte; a filling tank that stores a charged electrolyte; a recovery line that connects the connector in the stand and the recovery tank; and a filling line that connects the connector in the stand and the filling tank. In response to the connector being connected to the connection socket, the electrolyte station enables the used electrolyte removed from an electrolyte tank to be recovered to the recovery tank through the recovery line, and enables the charged electrolyte stored in the filling tank to be supplied the electrolyte tank through the filling line.

Abstract: Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative active material includes: a silicon particle core comprising a silicon particle having a particle size in a micrometer range; an oxide layer having a thickness in a range of about 65 nm to about 450 nm, on the silicon particle core; and a conductive layer on the oxide layer.

Abstract: The low efficiency power generation part of a control device is provided with an operating point setting part setting a target current and a target voltage defining an operating point of the fuel cell at the time of low efficiency power generation and a generated electric power control part making the generated electric power of the fuel cell increase and decrease at the time of low efficiency power generation by controlling the current of the fuel cell to the target current while making the flow rate of feed of oxidizing agent gas supplied to the fuel cell fluctuate so that the voltage of the fuel cell increases and decreases above and below the target voltage within a range where the charged and discharged electric powers of the rechargeable battery do not become larger than the allowable charged and discharged electric powers.

Abstract: Systems and methods are provided for a battery management system (BMS) having a protection circuit. In one example, a vehicle battery system may include the BMS, the BMS including a cutoff circuit coupled to a short-circuit protection circuit, and a battery pack, wherein the short-circuit protection circuit may include a diode array, cathodes of the diode array being coupled to a positive terminal post of the battery pack and anodes of the diode array being coupled to a negative terminal post of the battery pack. In some examples, the cutoff circuit may further be coupled to a reverse bias protection circuit including a switchable current path arranged between a control input of the cutoff circuit and an output of the cutoff circuit. In this way, the vehicle battery system may be protected from unexpected voltage conditions via the BMS redirecting and dissipating excess current away from the cutoff circuit.

Abstract: A lithium-based energy storage system includes an electrolyte and an electrode. The electrode has a conformal coating of parylene. The parylene forms an artificial solid electrolyte interface (SEI). The electrode may include a material chosen from silicon, graphene-silicon composite, carbon-sulfur, and lithium. The use of parylene to form a conformal coating on an electrode in a lithium-based energy storage system is also disclosed.