Abstract: A secondary battery has a flat-shaped wound electrode body and a rectangular battery case housing the wound electrode body. In the wound electrode body, in at least any one of a positive electrode current collection foil laminated part and a negative electrode current collection foil laminated part, a positive electrode current collection foil exposed portion or a negative electrode current collection foil exposed portion is foil-bundled at a foil-bundling position and joined to a positive electrode current collection terminal or a negative electrode current collection terminal. At the foil-bundling position, the thickness A of the wound electrode body in the lamination direction and the shortest distance B to the foil-bundling position from the vertex of the R portion closest to the foil-bundling position among R portions of the wound electrode body satisfy, B?(1/2) A.

Abstract: The present application provides an end cover assembly, a battery cell, a battery, an electric device and a method for preparing a battery cell and an apparatus for manufacturing a battery cell. The present application provides an end cover assembly, where the end cover assembly includes: a cover plate provided with a pressure relief hole; a fixing member fixed on the cover plate, the fixing member having a first through hole and a second through hole, and the first through hole being opposite to the pressure relief hole; and a gas permeable membrane covering at least a portion of the pressure relief hole, an edge part of the gas permeable membrane being connected to the fixing member, and a portion of the edge part being embedded into the second through hole, so as to prevent the edge part from moving relative to the fixing member.

Abstract: The present invention discloses a pressing jig for pressing a battery cell, and a battery module, wherein the pressing jig includes a plurality of pressing plates provided on outermost portions of a plurality of battery cells and separating a space for receiving a plurality of battery cells, and performing pressing on a plurality of battery cells, wherein the pressing plates excluding one pressing plate provided on an outermost portion on one side may move in a horizontal direction as the pressing direction, while connected to the pressing frames, and a magnet is included on one pair of pressing plates provided on outermost portions on respective sides of the pressing plates so that opposite polarities may face each other, and a shielding film is formed on a portion exposed to an outside on the sides excluding an inside that faces battery cells on the one pair of pressing plates.

Abstract: Disclosed is a battery transporting apparatus including a frame member for supporting a battery cell; a pair of electrode lead support members movably mounted to the frame member to be adjustable in a length direction of the battery cell among length, width and thickness directions of the battery cell and for supporting electrode leads of the battery cell, respectively; a lengthwise rotary shaft coupled to the frame member; and a lengthwise moving member coupled to the pair of electrode lead support members and coupled to the lengthwise rotary shaft, the lengthwise moving member moves along the lengthwise rotary shaft when the lengthwise rotary shaft rotates so that the pair of electrode lead support members are moved.

Abstract: A battery assembly includes a base including a first locking feature, a lid including a second locking feature, and a metal joint fusing the first locking feature to the second locking feature. The metal joint is configured to melt to disconnect the first locking feature from the second locking feature.

Abstract: A negative electrode for a lithium secondary battery including a lithium metal layer and a carbon-based layer on at least one surface of the lithium metal layer, the carbon-based layer including porous carbon materials aligned in one direction and oriented horizontally with reference to the lithium metal layer and a lithium secondary battery including the same.

Abstract: One or more trenches in a silicon substrate have an electrically active surface at a trench base and metal layer disposed on the electrically active surface. Precursor materials are disposed and/or formed on the metal layer in the trench. An anode is patterned either exclusively in the 3D trench or in the 3D trench, sidewalls and field of the substrate, where the anode patterning transforms and/or moves the precursor materials in the trench into some novel compositions of matter and other final operational structures for the device, e.g. layers of metallic Lithium for energy storage and different concentrations of Lithium-silicon species in the substrate. A multi-faceted mechanism is disclosed for Al2O3 silicon interfacial additives. When the anode is patterned both in and outside the 3D wells, Al2O3 provides an for electron-conductive Li-metal interface that enables homogenous plating on both the insulated substrate field as well as active silicon trench base where Al2O3 acts as a barrier to Li—Si diffusion.

Abstract: A battery module includes a cell stack having a plurality of battery cells; and a phase change preheater disposed on the cell stack. The phase change preheater contains a phase change material that causes a phase change as crystal nuclei are formed, and accordingly causes an exothermic reaction.

Abstract: A method for manufacturing an anode for a lithium secondary battery comprises: preparing a lithium transfer film by forming a lithium layer on a protection layer of a transfer film, wherein the transfer film includes a substrate and the protective layer; and preparing a negative electrode having a negative electrode active material layer formed on a current collector, and transferring the lithium transfer film by contacting and rolling the lithium transfer film onto the surface of the negative electrode material layer such that the lithium layer faces the negative electrode active material layer. The protective layer contains an acrylic resin, and the lithium layer and the protective layer are transferred onto the negative electrode active material layer.

Abstract: The present application provides an electrode assembly, a batter cell, a battery, an electric apparatus, and a manufacturing method and device of the electrode assembly. A negative plate of the electrode assembly includes a plurality of first negative active material layers located in an abutting region, and a plurality of second negative active material layers located in a non-abutting region; a positive plate of the electrode assembly includes a plurality of first positive active material layers located in the abutting region, and a plurality of second positive active material layers located in the non-abutting region. An active material capacity per unit area of the first negative active material layer is greater than that of the second negative active material layer; and/or an active material capacity per unit area of the first positive active material layer is less than that of the second positive active material layer.

Abstract: The present disclosure relates to a top cover assembly of a secondary battery and a secondary battery, wherein the top cover assembly includes a top cover plate, provided with a through hole; an electrode terminal, covering the through hole; an insulating plate, wherein at least part of the insulating plate is arranged on a side of the top cover plate away from the electrode terminal; a seal, wherein at least part of the seal is arranged between the top cover plate and the electrode terminal; and an insulator, wherein at least part of the insulator is arranged between the top cover plate and the insulating plate; wherein the insulator and the seal at least jointly enclose a side wall of the through hole and an area, close to the through hole, on an upper surface of the top cover plate.

Abstract: A method for manufacturing an electrode structure is provided. The method for manufacturing an electrode structure comprises the steps of: preparing a base substrate; forming an amorphous seed layer covering the base substrate; crystallizing the seed layer; and covering the crystallized seed layer and forming a functional film for a secondary battery inherently having a crystalline structure.

Abstract: A power storage pack includes a plurality of power storage modules each having a plurality of power storage devices arranged in first direction X and binding members that bind the plurality of power storage devices, and heat transfer members that transfer heat between the plurality of power storage modules. The plurality of power storage modules includes at least a first power storage module and a second power storage module. Each heat transfer member has first connecting parts thermally connected to a surface of the first power storage module, the surface being parallel with first direction X, second connecting parts thermally connected to a surface of the second power storage module, the surface being parallel with first direction X, and coupling parts thermally coupling the first connecting parts to the second connecting parts. The first connecting parts and the second connecting parts are arranged in such a way as to be shifted from each other in first direction X.

Abstract: A method of manufacturing an electrode block for a solid-state battery includes providing an electrode film with a current collector on a first side of the electrode film, coating a layer of dry electrolyte powder on a second side of the electrode film opposite the first side, and pressing the dry electrolyte powder coated on the electrode film to produce a solid electrolyte layer on the electrode film. A method of manufacturing an electrolyte film for a solid-state battery includes preparing a powder mixture including at least one type of fibrillizable binder and at least one type of dry electrolyte powder, the at least one type of dry electrolyte powder being 80-97% of the powder mixture by weight, fibrillizing the at least one type of fibrillizable binder in the powder mixture by subjecting the powder mixture to a shear force, and pressing the powder mixture into a free-standing film.

Abstract: A method of synthesizing a precursor for making a polymer, glass, or ceramic material is provided. The method includes reacting OPCl3 with NH3 or MNH2, where M is Li, Na, K, Mg, Ca, Ba, or combinations thereof, to form O?P(NH2)3. The method then includes either: (i) reacting the O?P(NH2)3 with M1NH2, where M1 is Li, Na, K, Mg, Ca, Ba, or combinations thereof, to form the precursor; or (ii) heating the O?P(NH2)3 to form a branched or cyclomeric compound, and reacting the branched or cyclomeric compound with M1NH2, where M1 is Li, Na, K, Mg, Ca, Ba, or combinations thereof, to form the precursor. The precursor is an oligomer or a polymer. Uses for the precursor and the polymer, glass, or ceramic material as binders, sintering aids, adhesives, and electrolytes in battery components are also provided.

Abstract: A cell module assembly includes a first frame having a first plurality of pockets, a second frame spaced apart from the first frame and having a second plurality of pockets, a plurality of lithium-ion battery cells coupled to and extending between the second frame and the first frame, a first collector plate electrically connected to the plurality of lithium-ion battery cells and coupled to the first frame by a first curable adhesive, and a second collector plate electrically connected to the plurality of lithium-ion battery cells and coupled to the second frame by a second curable adhesive. Each one of the plurality of lithium-ion battery cells is received within a respective one of the first plurality of pockets and a respective one of the second plurality of pockets.

Abstract: Flexible processes and systems for recovering manganese (Mn), cobalt (Co), nickel (Ni) as a purified co-precipitated product or alternatively independent products, from a lithium-ion battery waste stream are provided. The process may include upstream leaching and impurity removal prior to separation in a metal recovery system that may include a manganese (Mn) recovery unit to generate a manganese (Mn)-containing product, a cobalt (Co) recovery unit to generate a cobalt (Co)-containing product or a nickel (Ni) recovery unit to generate a nickel (Ni)-containing product or alternatively and optionally may include a co-precipitator unit to form a co-precipitated product. A lithium (Li) recovery unit may further process a portion of the waste liquid stream to form a lithium (Li)-containing product.

Abstract: A magnetic alignment device applies a magnetic field to a negative electrode slurry by introducing a magnet part to an upper and a lower portion of a negative electrode current collector on which the negative electrode slurry is applied, respectively. By applying a stronger magnetic field in a second region of the magnet part located downstream along the transfer direction of the negative electrode current collector than in a first region of the magnet part located upstream, and by arranging a drying part adjacent to the end of the second region where the stronger magnetic field is applied, a negative electrode having a significantly higher alignment of the carbon-based negative electrode active material contained in the negative electrode slurry can be manufactured. A method for manufacturing a negative electrode using the magnetic alignment device is also provided.

Abstract: A lithium borate compound represented by the following Formula (I). In Formula (I), each of R1, R2, and R3 independently represents a hydrocarbon group having from 1 to 20 carbon atoms, which may have a substituent. R10 represents a fluorine atom, a hydrocarbon-oxy group having from 1 to 10 carbon atoms, a hydrocarbon group having from 1 to 10 carbon atoms, or a fluorinated hydrocarbon group having from 1 to 10 carbon atoms.

Abstract: An assembly is provided that may include a battery, and an end cap mechanically and electrically coupled to the battery. The end cap may contain an electrical connector with at least one electric cable configured to supply current to at least one operating system electrically coupled to the battery. The end cap may also contain at least one electronic board coupled to the battery, and may be configured to detach from the battery to provide access to the electrical connector and the electronic board.