Abstract: A negative electrode active material for a lithium secondary battery which includes first negative electrode active material particles including artificial graphite particles and a carbon coating layer formed on the artificial graphite particle; and second negative electrode active material particles including natural graphite particles, wherein the first negative electrode active material particles have a larger average particle diameter (D50) than an average particle diameter (D50) of the second negative electrode active material particles, and a weight ratio of the first negative electrode active material particles and the second negative electrode active material particles is in a range of 70:30 to 95:5.

Abstract: A method of providing a cleaned gas diffusion layer for electrochemical applications includes providing a gas diffusion layer such that a first side of the gas diffusion layer is arranged on a first vacuum conveyor belt, cleaning an exposed second side of the gas diffusion layer, the second side being situated opposite the first side of the gas diffusion layer, transferring the partially cleaned gas diffusion layer to a second vacuum conveyor belt partially situated opposite the first vacuum conveyor belt, wherein the first vacuum conveyor belt and the second vacuum conveyor belt have a transfer region in which the gas diffusion layer is transferred from the first vacuum conveyor belt to the second vacuum conveyor belt such that the first side of the gas diffusion layer is exposed, and cleaning the first side of the gas diffusion layer.

Abstract: A battery module includes a cell stack in which a plurality of battery cells are stacked; a pair of bus bar frames configured to cover one side and another side, respectively, of the cell stack in a longitudinal direction; a housing configured to accommodate a combined body of the cell stack and the pair of bus bar frames so that the pair of bus bar frames is exposed to an outside of the housing; and an insulation pad interposed between a side surface of the cell stack and an inner surface of the housing and between a side surface of one of the pair of bus bar frames and the inner surface of the housing.

Abstract: The invention discloses a catalyst coated membrane and preparation method thereof, membrane electrode and fuel cell. The above preparation method includes: firstly, adding sodium type resin to an aqueous-alcohol dispersion of Pt/C catalyst, and stirring and dispersing to obtain a catalyst slurry; secondly, coating the catalyst slurry onto a PTFE membrane, drying at room temperature, and then transferring to an sintering box for heat treatment to obtain a catalyst coated PTFE membrane; thirdly, preparing a proton membrane with catalyst transfer layer by thermocompression transfer of the catalyst coated PTFE membrane and a proton exchange membrane; finally, protonating the proton membrane with catalyst transfer layer to obtain a catalyst coated membrane. The present invention utilizes the great thermal stability of sodium type resin to enhance the crystallization degree of Nafion-H in the catalyst coated membrane through heat treatment, thereby improving the resistance to free radical oxidation and corrosion.

Abstract: It is an object of the present invention to provide a novel organic sulfur material which is capable of improving a charge/discharge capacity and cycle characteristics, an electrode comprising the organic sulfur material, that is, a positive electrode or a negative electrode, and a lithium-ion secondary battery comprising the electrode. Provided is an organic sulfur material comprising a sulfur-modified acrylic resin, wherein an acrylic resin has peaks around 756 cm?1, around 1066 cm?1, around 1150 cm?1, around 1245 cm?1, around 1270 cm?1, around 1453 cm?1, and around 1732 cm?1 in an FT-IR spectrum.

Abstract: This separator is provided with a resin substrate, a first heat-resistant layer that covers the entirety of one surface of the resin substrate, a second heat-resistant layer that covers a portion of the other surface of the resin substrate, and an uncovered region that is in the other surface of the resin substrate and that is not covered by the second heat-resistant layer, wherein the first heat-resistant layer and the second heat-resistant layer each include inorganic particles and a binder. In each of the heat-resistant layers, the contained amount of the inorganic particles is 50-90 mass %, the contained amount of the binder is 10-50 mass %, and the uncovered region is connected to the end portion of the resin substrate.

Abstract: An energy storage system includes a rack container having a predetermined accommodation space, a plurality of battery racks disposed in the rack container and respectively having a coolant tank in which a predetermined coolant is contained, and at least one flux supplement unit configured to connect the coolant tanks of the plurality of battery racks.

Abstract: Various embodiments of a reactant feed and return assembly, such as an anode splitter plate (ASP), are provided for facilitating reactant feed flow in a solid oxide fuel cell (SOFC) stack system. Embodiments include a reactant feed and return assembly including at least one nozzle structure along a flow path of a reactant feed to a fuel cell stack. The at least one nozzle structure may include a width dimension that decreases along the flow path of the reactant. The at least one nozzle structure of the assembly may accelerate the reactant feed as it enters the adjacent fuel cell stack and may provide the reactant feed with sufficient kinetic energy to negate the effects of an increase in viscous resistance along the reactant flow path through the fuel cell stack.

Abstract: An arrangement for pressure monitoring within a battery housing of a battery system. The arrangement includes a first power supply path and a pressure measuring. The pressure measuring unit is electrically connected to the first power supply path. The arrangement also includes a pressure-sensitive mechanical switching unit arranged within the battery housing and electrically connected, in series with the pressure measuring unit, to the first power supply path. The switching unit switches to an electrically conductive switching state when the pressure within the battery housing exceeds a predefined pressure threshold and establishes a supply of power to the pressure measuring unit via the first power supply path, and switches to an electrically blocking switching state when the pressure within the battery housing falls below the pressure threshold and interrupts the supply of power to the pressure measuring unit via the first power supply path.

Abstract: A load distributing thermal runaway barrier for an energy storage battery cell pack includes a first separator plate, a second separator plate, and at least one first elastic member arranged between the first and second separator plates. Each first elastic member is configured to maintain a first load in response to a pressure applied to at least one of the first and second separator plates. The load distributing thermal runaway barrier also includes a third separator plate, a fourth separator plate, and at least one second elastic member arranged between the third and fourth separator plates. Each first elastic member is configured to maintain a second load in response to a pressure applied to at least one of the third and fourth separator plates. The load distributing thermal runaway barrier additionally includes a thermally insulating pad arranged between the second and third separator plates.

Abstract: An anode composite (AC) for use in an anode for solid-state lithium batteries includes particles of a silicon active material, a carbon additive for electrical conductivity, and a solid electrolyte that combines solid elastic electrolyte (SEE) with a solid non-elastic electrolyte. The solid non-elastic electrolyte is a lithium thiophosphate or other ceramic lithium ion conductor and the SEE includes an ammonium or phosphonium ion closo-borate doped with a lithium salt. The SEE is diffused onto the combined particles uniformly by heating, where pressing achieves about 100% relative density at modest pressures. The anode displays high stability upon charge-discharge cycles of a solid-state lithium battery prepared with the AC layer, appearing to maintain stable intrinsic and extrinsic interfaces.

Abstract: A battery cell, including an anode, a cathode, an electrolyte, and at least one inductively heatable material embedded or suspended in the electrolyte. A battery module, battery pack, and electric vehicle include the battery cell. A method of heating an electrolyte includes passing an alternating current generating eddy currents within embedded or suspended inductively heatable materials.

Abstract: Embodiments of this application disclose a vehicle thermal management system and method. The system includes a refrigeration cycle system, a coolant cycle system, and a control device, where the coolant cycle system includes a coolant cycle frontend radiator, a power assembly heat dissipation system, a battery pack heat dissipation system, a primary path water pump, a bypass water pump, and a valve bank system. In the system, the refrigeration cycle system is connected to the primary path water pump. Furthermore, in the system, the power assembly heat dissipation system and the battery pack heat dissipation system share the refrigeration cycle system and the coolant cycle frontend radiator by using the primary path water pump, the bypass water pump, and a combination of the valve bank system.

Abstract: An all-solid-state battery manufacturing apparatus disclosed herein includes a transport apparatus, a press roller, and an adhesive provision apparatus. The transport apparatus transports an active material layer. The press roller has a foil attachment surface, which is a cylindrical surface to which the current collection foil is to be attached. The press roller rotates and moves the current collection foil attached to the foil attachment surface to the surface of the active material layer being transported by the transport apparatus and presses the current collection foil and the active material layer between the press roller and the transport apparatus. The adhesive provision apparatus is provided on a movement path of the current collection foil rotated and moved by the foil attachment surface of the press roller, and provides an adhesive to the current collection foil attached to the press roller.

Abstract: Gel polymer electrolytes comprising molybdate(VI) salts dispersed in a hydrogel matrix. The hydrogel matrix contains reacted units of an acrylamide (e.g. 2-acrylamido-2-methyl-1-propanesulfonic acid) and optionally an additional monomer. A supercapacitor including the gel polymer electrolyte and electrodes arranged between the electrolyte is also specified. This supercapacitor is evaluated on its specific capacitance, energy density, power density, resistance, as well as cycling stability.

Abstract: Methods and systems are provided for a redox flow battery system. In one example, the redox flow battery system includes a cell stack compressed between terminal structures defining ends of the redox flow battery. The cell stack may be formed of a plurality of cells where each cell includes a deformable positive electrode in contact with a first face of a membrane separator and a negative electrode configured to be less compressible than the positive electrode and arranged at a second face of the membrane separator.

Abstract: The secondary battery includes an electrode assembly to which an electrode lead is attached; a case configured to receive the electrode assembly therein; a lead film configured to surround a part of an outer surface of the electrode lead and interposed between the electrode lead and the case; a vent region formed in at least a part of the case; and a vent member inserted into the vent region and configured to contain linear low-density polyethylene having a poly dispersity index (PDI) of 4 or less, wherein the vent member has a maximum sealing strength of less than 6 kgf/15 mm at 100° C. or above and a maximum sealing strength of 6 kgf/15 mm or more at room temperature to 60° C.

Abstract: To improve the cycle characteristics of a lithium ion battery, a mixture of a powder of a conversion-type oxide made of an iron oxide and/or a silicon oxide and causing a conversion reaction with Li ions and a powder of an oxygen ion conductor are used as a negative electrode material of the lithium ion battery.

Abstract: The present invention is directed to a redox flow battery comprising at least one electrochemical cell in fluid communication with a balancing cell, said balancing cell comprising: a first and second half-cell chamber, wherein the first half-cell chamber comprises a first electrode in contact with a first aqueous electrolyte of the redox flow battery; and wherein the second half-cell chamber comprises a second electrode comprising a catalyst for the generation of O2; and wherein the second half-cell chamber does not contain an aqueous electrolyte.

Abstract: Disclosed is a power system combining photovoltaic power generation and hydrogen power generation, including: a building, a photovoltaic power generation device being installed on an upper end surface of the building, and a first inverter being installed on an output end of the photovoltaic power generation device through a connecting line; a water electrolysis hydrogen production equipment being installed inside a building, a first hydrogen storage tank being installed on one side of the building, a second hydrogen storage tank being installed on the other side of the building, and an oxygen storage tank being connected to an output end of the water electrolysis hydrogen production equipment through a pipeline. In the disclosure, there is no need to provide a special storage battery to store the electricity generated by photovoltaic power generation.