Abstract: A separator for an electrochemical device, where the separator includes a semi-crystalline and/or amorphous polymer, such as polyvinyl acetate and polyethylene-co-vinyl acetate, as a binder polymer of an inorganic coating layer. The surfaces of the inorganic particles are at least partially coated with a coupling agent. Therefore, it is possible to prevent the inorganic particles from being detached from the inorganic coating layer. In addition, phase separation is accelerated under a humidified condition in manufacturing the separator so that the surface of the separator may be provided with an adhesive portion in which a large amount of binder polymer is distributed. As a result, the separator may have improved binding force to an electrode.

Abstract: A battery cell manufacturing method includes receiving an electrode assembly in a battery case, preparing an electrolytic solution saturated with a soluble gas, injecting the electrolytic solution into the battery case, and impregnating the electrode assembly with the electrolytic solution.

Abstract: Provided are a lithium battery and a manufacturing method therefor, the lithium battery comprising: a cathode; an anode; and a separator interposed between the cathode and the anode and including a porous substrate and an adhesive layer, wherein the adhesive layer of the separator contains ceramic particles and a binder at a mixing weight ratio of 4:6 to 6:4, the binder is a polyvinylidene fluoride-based compound, the binder includes a first binder and a second binder, and the adhesion ratio of the lithium battery, which is represented by equation 1 below, is 0.05 to 1.0. adhesion ? ratio = { ( dry ? adhesion - 10 ) / ( wet ? adhesion - 350 ) } < Equation ? 1 > In equation 1, dry adhesion and wet adhesion are as defined in the detailed description.

Abstract: A separator for a lithium-based battery, and method for fabricating the same is disclosed. The method includes oxidizing cellulose fibrils to form oxidized cellulose having carboxylic functional groups, decorating the oxidized cellulose with nanoparticles, and forming the nanoparticle-decorated oxidized cellulose into a film to become the separator for the lithium-based battery. The cellulose may be a bacterial cellulose. The cellulose fibrils may be oxidized through a TEMPO oxidation. Decorating the oxidized cellulose with nanoparticles may include introducing a precursor solution to the oxidized cellulose that reacts with hydroxyl groups of the oxidized cellulose while preserving the carboxylic functional groups, causing the nanoparticles to nucleate on the surface of the oxidized cellulose. The nanoparticles may be composed of an oxide material. The oxide material may be SiO2. The precursor solution may be tetraethyl orthosilicate (TEOS).

Abstract: Solid-polymer electrolytes, methods of making solid-polymer electrolytes, and uses of solid-polymer electrolytes. A solid-polymer electrolyte comprises a cross-linked polymer network. A cross-linked polymer network may comprise a plurality of groups, which may be cross-linked groups, such as, for example, cross-linked difunctional polyether groups, cross-linked difunctional ionic groups, non-crosslinked groups, which may be referred to as “dangling” groups, or a combination thereof, and a plurality of cross-linked multifunctional crosslinker groups. A solid polymer electrolyte can be formed by polymerization. A solid polymer electrolyte can be formed in situ in a device. A solid polymer electrolyte can be used in devices such as, for example, batteries, supercapacitors, fuel cells, and the like.

Abstract: A fluoride composition configured for fluoride ion intercalation, the fluoride composition comprising one of: a) a defect fluoride pyrochlore composition of the general formula AMIIMIIIF6; or b) a fluoride weberite composition of the general formula A1-2MM? F6-7, where the oxidation state of M and M? are such that the composition is charge balanced. An F-ion energy storage cell comprising: a first electrode configured for fluoride ion intercalation, where the first electrode comprises one of: a defect fluoride pyrochlore composition, or a fluoride weberite composition; a second electrode; an electrolyte; and a separator. A method of manufacturing an F-ion energy storage cell comprising forming an F-ion composition configured for fluoride ion intercalation; forming a first electrode from the F-ion composition; and forming a cell having the first electrode, a second electrode, a separator, and an electrolyte.

Abstract: Provided is a battery housing. The battery housing has an opening at both ends in a length direction, respectively, and the battery housing is provided with at least one cooling unit extending along the length direction. The cooling unit is provided with a coolant channel for coolant circulation, and the at least one cooling unit divides the internal space of the battery housing into at least two accommodating cavities spaced apart from top to bottom in a height direction. Each accommodating cavity is used for accommodating a battery cell. By providing the cooling unit in the battery housing, the heat generated by the battery cell can be dispelled immediately, thereby quickly and effectively solving the heat dissipation problem of the battery cell during charging and discharging. Also provided are a lithium-ion secondary battery and an electric vehicle.

Abstract: A battery plate may include a current collector, wherein at least one face of the current collector may include a coated area and an uncoated area that may be connected, the coated area may be coated with an active material layer and an insulation layer, and the insulation layer may be located on one side of the active material layer close to the uncoated area. The insulation layer may include a first part and a second part that may be connected, the second part may be located in an edge area of the insulation layer close to the active material layer, and the active material layer may be configured to cover the second part, such that the active material layer may partially overlap with the insulation layer in a thickness direction of the plate.

Abstract: An electrode assembly includes a first electrode sheet, a second electrode sheet, and a first separator. The first electrode sheet and second electrode sheet are of opposite polarities, the first separator is configured to separate the first electrode sheet and the second electrode sheet. The first electrode sheet, the second electrode sheet, and the first separator are wound in a winding direction. The electrode assembly has a bending region. The bending region is provided with a second separator that is laminated with the first separator and configured to separate the first electrode sheet and the second electrode sheet adjacent to each other. At least part of ions deintercalated from the first electrode sheet are able to pass through the first separator and the second separator and be intercalated in the second electrode sheet.

Abstract: Provided is a battery pack cooling system. A pouch type battery liquid immersion cooling system of the present disclosure having the above configuration may have a lighter weight and higher cooling performance than a conventional liquid immersion cooling system by using an absorbent material including a cooling fluid inside, may be continuously cooled with a limited amount of the fluid by evaporating and condensing the cooling fluid included in the absorbent material, and may achieve the higher cooling performance by using latent heat of the evaporation.

Abstract: Disclosed is a battery rack managing apparatus, which may effectively wake up a plurality of module BMSs. The battery rack managing apparatus manages a battery rack provided with a plurality of battery modules, and includes a plurality of module BMSs provided to correspond to one or more battery modules among the plurality of battery modules; a rack BMS configured to communicate with the plurality of module BMSs and control the plurality of module BMSs; a heater configured to generate and supply heat; and a plurality of wake-up units provided to correspond to the plurality of module BMSs, respectively, and including a variable resistor element configured to change a resistance value by the heat supplied by the heater, the plurality of wake-up units being configured to supply a wake-up signal to a corresponding module BMS when the resistance value of the variable resistor element is changed.

Abstract: The herein disclosed manufacturing method of the electrode plate includes a core body exposed area cutting step for cutting a negative electrode core body exposed area with a laser, on which a negative electrode core body is exposed while a negative electrode active material layer is not provided, so as to form a negative electrode tab. Then, regarding the herein disclosed manufacturing method of the electrode plate, the negative electrode core body includes a first surface and a second surface whose surface roughness is smaller than the first surface, and the laser is irradiated to the first surface. By doing this, it is possible to suppress the sputters from sticking to the second surface, and therefore it is possible to decrease the sticking number of the sputters to the negative electrode tab.

Abstract: The present application provides a secondary battery. The secondary battery may include a positive electrode sheet, a negative electrode sheet, and an electrolytic solution, where the positive electrode sheet may include a positive active material; in the positive active material, a contained rate of an element Co may satisfy: Co?0.09, and a content of an element Al may satisfy: 500 ppm?Al?10000 ppm; and the electrolytic solution may include a compound represented by the following general formula (I).

Abstract: Provided herein is a battery cell. The battery cell can include a cation-selective ion-exchange membrane. The cation-selective ion-exchange membrane can allow lithium ions to pass through the membrane. The cation-selective ion-exchange membrane can impede manganese ions from passing through the membrane.

Abstract: An actinic ray-sensitive or radiation-sensitive resin composition contains a compound represented by General Formula (I). In General Formula (I), Ra and Rb each independently represent a hydrogen atom or a substituent, provided that Ra and Rb satisfy the following requirement (1) or (2): (1) at least one of Ra or Rb represents a secondary alkyl group, a tertiary alkyl group, a cycloalkyl group, or a perfluoroalkyl group, and Ra and Rb may be bonded to each other to form a ring, and (2) Ra and Rb are bonded to each other to form a ring, Rc represents a substituent, L0 represents a single bond or a divalent linking group, L1 represents a single bond or a divalent linking group, L2 represents a single bond or a divalent linking group, nM+ represents an organic cationic moiety, and n represents an integer of 1 or more.

Abstract: A battery, a positive electrode plate, a positive electrode slurry, a dispersant and its preparation method, and an electric device are disclosed. The battery includes a positive electrode plate having a current collector and a positive electrode material layer on at least one side. The material layer contains a positive electrode active material and a dispersant. The dispersant comprises a polyester compound that includes structural unit A and/or structural unit B. Structural unit A and B are defined by specific chemical formulas, where R1 and R2 are each selected from and C0, C1-C18 alkyl, and C6-C18 aryl groups; R3 and R4 are each selected from H, C1-C18 alkyl, C6-C18 aryl, or ester groups aryl, or ester groups. The dispersant improves the dispersion performance of the positive electrode slurry and enhances the uniformity and flexibility of the positive electrode plate, thereby contributing to higher capacity and improved stability of the battery.

Abstract: The present invention relates to a compound capable of lowering the flammability of a non-aqueous electrolyte when included in the non-aqueous electrolyte and improving the life properties of a battery by forming an electrode-electrolyte interface which is stable at high temperatures and low in resistance, and relates to a compound represented by Formula I descried herein, a non-aqueous electrolyte solution and a lithium secondary battery both including the compound, n, m, Ak, and X are described herein.

Abstract: Provided is an electrode for secondary battery. The electrode may include a substrate, a first coated portion disposed on a first surface of the substrate, the first coated portion comprising an active material; and a first uncoated portion disposed on the first surface of the substrate, the first uncoated portion being in contact with the first coated portion and exposing the substrate, wherein a first side portion of the first coated portion in contact with the first uncoated portion has a stepped surface.

Abstract: Disclosed herein is an apparatus having: a polymer electrolyte membrane fuel cell stack capable of generating 1-6 kw and a compressor capable of delivering at least 10 g/s of air at 1 2 bar. The compressor is coupled to an air inlet of the fuel cell stack.

Abstract: The present invention relates to novel phenazine-based compounds and compositions comprising the same and their use as redox flow battery electrolytes.