Abstract: This application provides a secondary battery, a battery module, and a device using a secondary battery as a power supply. The secondary battery includes an electrode assembly, a cap assembly, and current collection members. The electrode assembly includes a main body and tabs that extend from the main body. The cap assembly includes a cap plate, electrode terminals, and an insulation baffle. The electrode terminals are disposed on the cap plate. The insulation baffle is connected to a side of the cap plate, where the side is close to the main body. The current collection members are at least partly located between the insulation baffle and the main body, and each of the current collection members includes a tab connection portion connected to one of the tabs. The insulation baffle contains a first recess.

Abstract: An electrode structure includes a positive electrode layer and a positive electrode collector member. The positive electrode collector member includes a positive electrode collector foil, a carbon film, and a hot melt adhesive agent. A positive electrode total specific surface area is more than or equal to 2.2 m2/g and less than or equal to 3.0 m2/g, the positive electrode total specific surface area being represented by a total of a product of weight ratio and specific surface area of a positive electrode active material, a product of weight ratio and specific surface area of a solid electrolyte, and a product of weight ratio and specific surface area of a conductive material. A softening point of the hot melt adhesive agent is more than or equal to 100° C. and less than or equal to 130° C.

Abstract: The present disclosure provides a battery cell, a battery module, a battery pack, a device using the battery cell as a power source, and an assembling method of the battery cell, wherein the battery cell comprising an electrode assembly (20) and an insulating support plate (50), the electrode assembly (20) comprises a main body portion (22) and a tab (21) connected to the main body portion (22), the insulating support plate (50) comprises a first support portion (51) and a second support portion (52) connected to the first support portion (51), the first support portion (51) protrudes in a direction approaching the main body portion (22) relative to the second support portion (52) such that a first gap is formed between the second support portion (52) and the main body portion (22), and at least a portion of the tab (21) is located in the first gap.

Abstract: Stabilized porous silicon particles are disclosed. The particles include a porous silicon particle comprising a plurality of interconnected silicon nanoparticles and (i) a heterogeneous layer comprising a discontinuous SiC coating that is discontinuous across a portion of pore surfaces and across a portion of an outer surface of the porous silicon particle, and a continuous carbon coating that covers outer surfaces of the discontinuous SiC coating, and remaining portions of the pore surfaces and the outer surface of the porous silicon particle, or (ii) a continuous carbon coating on surfaces of the porous silicon particle, including the outer surface and pore surfaces. Methods of making the stabilized porous silicon particles also are disclosed.

Abstract: A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case having an opening and housing the electrode assembly; and a cap assembly sealing the opening of the case, and the cap assembly includes: a cap plate bonded to the case and covering the opening; a terminal plate bonded to the cap plate; and a thermal fusion member between the terminal plate and the cap plate and thermally fused with the terminal plate and the cap plate.

Abstract: A rechargeable battery includes: a case receiving an electrode assembly and including an opening; a cap assembly including a cap plate coupled to the case and covering the opening, and a terminal plate coupled to the cap plate; and a housing covering the cap plate and coupled to the case, and an outer surface of the terminal plate protrudes more than an outer surface of the housing to have a height difference.

Abstract: Disclosed here is a battery including: an exterior body having a bottom wall; and a winding electrode body in which positive electrode, negative electrode and separator are wound about a winding axis. The winding electrode body has a flat shape having a pair of curvature parts having a curved outside surface and a flat part that connects the pair of curvature parts to each other and has a flat outside surface. When a line perpendicular to the winding axis of the winding electrode body and perpendicular to the bottom wall of the exterior body is assumed as L1, a portion positioned at an outermost periphery of the negative electrode in at least one of the pair of the curvature parts faces a portion positioned on a winding inner peripheral side of the negative electrode via the separator and not via the positive electrode on the line L1.

Abstract: An aspect of the present invention relates to a cylindrical secondary battery including a bottomed cylindrical battery case having an opening, an electrode group, an electrolyte solution, the electrode group and the electrolyte solution being housed in the battery case, and a sealing member blocking the opening of the battery case. The electrode group includes a positive electrode, a negative electrode, and a separator placed between the positive electrode and the negative electrode and is formed by winding the positive electrode and the negative electrode with the separator therebetween. The negative electrode includes a negative electrode current collector and a negative electrode mix layer formed on at least one principal surface of the negative electrode current collector. The positive electrode includes a positive electrode current collector and a positive electrode mix layer formed on at least one principal surface of the positive electrode current collector.

Abstract: A secondary battery including an electrode assembly including a negative electrode plate having a negative electrode tab, a positive electrode plate having a positive electrode tab, and a separator between the negative electrode plate and the positive electrode plate; a pouch accommodating the electrode assembly, the pouch having a sealing portion at an edge thereof that is sealed with the electrode assembly accommodated in the pouch; and a strip terminal, including a negative electrode lead electrically connected to the negative electrode tab, a positive electrode lead electrically connected to the positive electrode tab, and a tab film having one end coupled to the negative electrode lead and another end coupled to the positive electrode lead, the tab film insulating the negative electrode lead, the positive electrode lead, and the pouch from one another and including a through-hole passing therethrough between the one end and the other end.

Abstract: An electrode body of a secondary battery described herein includes: a core portion where electrode mixture layers of a plurality of electrode sheets are laminated; terminal connecting portions where respective current collector foil exposed portions are laminated, and a mixture layer non-facing portion where the electrode mixture layer faces the current collector foil exposed portion, the mixture layer non-facing portion being formed in a boundary between the terminal connecting portion and the core portion. In the secondary battery described herein, a short-circuit promoting portion having a predetermined depth (d) is formed in a separator provided between the electrode sheets in the mixture layer non-facing portion.

Abstract: A battery for a motor vehicle includes a plurality of battery cells and a housing. The battery cells are arranged within the housing and designed for storing energy and discharging electrical energy. The housing includes at least a first housing element and a second housing element. The first housing element and the second housing element are fixedly connected to each other. The first housing element and the second housing element each include a base surface and two lateral surfaces. The base surface is arranged between the lateral surfaces. A first distance by which the lateral surfaces extends away from the base surface is greater than a second distance by which the lateral surfaces are spaced apart from each other. The base surface and the lateral surfaces of the first housing element have the same dimensions as the base surface and the lateral surfaces of the second housing element.

Abstract: Disclosed is a stirring mechanism for extracting lithium from a waste liquid of a lithium iron phosphate battery, including a pedestal, a clamping jaw and a stirring mechanism; the stirring mechanism includes a first motor, a rotating member and a stirring member; the rotating member includes a second motor, a connecting end and a rotating shaft; the rotating shaft includes an inner shaft and an outer shaft; the stirring member includes a jaw-shaped connecting base, a separating frame, a material guide wheel and a collecting frame; the jaw-shaped connecting base is connected to an outside lower end of the outer shaft; the separating frame is connected to a bottom end of the jaw-shaped connecting base; the collecting frame is connected to a bottom portion of the separating frame; and the material guide wheel is fixed to a lower end of an inner cavity of the collecting frame and is connected with a bottom end of the inner shaft.

Abstract: A method (100) for producing a sintered component being a solid electrolyte and/or an electrode including titanium and sulfur for an all-solid state battery, the method including mixing powders (102) so as to obtain a powder mixture comprising titanium and sulfur, pressing (106) a component with the powder mixture, sintering (108) the component under a partial pressure of sulfur comprised between 200 Pa and 0.2 MPa so as to obtain an intermediate sintered component comprising titanium and sulfur, and sintering (114) the intermediate sintered component under a partial pressure of sulfur equal to or smaller than 150 Pa at a temperature plateau comprised between 200° C. and 400° C. so as to obtain a sintered component comprising titanium and sulfur, the solid electrolyte exhibiting the peaks in positions of 2?=15.08° (±0.50°), 15.28° (±0.50°), 15.92° (±0.50°), 17.5° (±0.50°), 18.24° (±0.50°), 20.30° (±0.50°), 23.44° (±0.50°), 24.48° (±0.50°), and 26.66° (±0.

Abstract: A battery module includes a plurality of secondary batteries, each including an electrode assembly and an electrolyte accommodated in an inner space of an exterior case. The battery module also includes an electrode lead having a body and a plate-shaped head portion. A first end of the body is electrically connected to a positive electrode plate or a negative electrode plate of the electrode assembly, and a second end of the body protrudes outward from the exterior case. The plate-shaped head extends in both directions perpendicular to the protruding direction of the body from the second end. The battery module also includes a bus bar having a plate shape with a slit extending inwardly from one end thereof so as to receive a portion of the body. The electrode lead and the bus bar may be at least partially made of an electrically conductive material.

Abstract: An electrode plate includes a first electrode tab, a second electrode tab, and an active material layer. The composite current collector includes a first metal layer, a second metal layer, and an insulation layer therebetween. The first electrode tab is on an edge of the first metal layer and extends beyond the insulation layer. The second electrode tab is on an edge of the second metal layer and extends beyond the insulation layer. The active material layer is disposed on the first metal layer and the second metal layer, and covers a portion of the first electrode tab on the first metal layer and a portion of the second electrode tab one the second metal layer. A battery cell and an electrochemical device including the electrode plate are also disclosed.

Abstract: The present disclosure enables a decline in a joining force between an internal terminal and an external terminal to be suppressed even when a load is applied to a sealed battery from the outside. In a sealed battery disclosed herein, an external terminal includes a plate portion and a flange portion. The plate portion has a rectangular shape and includes an internal terminal joining portion that is joined to the internal terminal at one end of the plate portion in a lengthwise direction and an external device joining portion that is joined to an external device at another end of the plate portion in the lengthwise direction. The flange portion is arranged in at least one side edge portion of the plate portion in a transverse direction so as to rise approximately perpendicularly with respect to the plate portion.

Abstract: A battery module includes: a plurality of secondary battery cells; and a housing unit having an internal space in which the plurality of secondary battery cells are accommodated and including a plate member extending a flame or gas path.

Abstract: A negative electrode for a secondary lithium battery is provided herein, as well as a method for assembling a secondary lithium battery including the negative electrode. The negative electrode includes a current collector having a first side and an opposite second side. A first negative electrode layer is disposed on the first side of the current collector and a second negative electrode layer is disposed on the second side of the current collector. A lithium metal layer is disposed (i) between the first and second negative electrode layers or (ii) on a major facing surface of the first or second negative electrode layer. An electrolyte infiltrates the first and second negative electrode layers and is in contact with the lithium metal layer. The electrolyte establishes a lithium ion transport path between the lithium metal layer and at least one of the first or second negative electrode layers.

Abstract: An electrode assembly with improved connection between current collectors and electrode tabs, and a method for manufacturing the same, for assuring safety with respect to overcharge, and battery capacity by improving a connection structure between the electrode tab and the current collector are provided. The electrode assembly for a rechargeable battery includes: an electrode current collector; an uncoated region in which an electrode active material layer is not formed, and provided on one side of the electrode current collector; an electrode tab disposed in the uncoated region; and a conductive adhesion portion that is disposed between the uncoated region and the electrode tab. The conductive adhesion portion comprises a positive temperature coefficient (PTC) material.

Abstract: Disclosed is an electrode for an energy storage rechargeable device, including a plurality of electrode material layers and a plurality of porous current collector layers, the electrode material layers and current collector layers being arranged in a specific manner, an energy storage rechargeable device including the electrode, and the uses of the electrode.