A battery and a method of constructing a battery are disclosed in which a first conductive substrate portion has a first face and a second conductive substrate portion has a second face opposed to the first face. A first electrode material is disposed in electrical contact with the first face, an electrolyte material is disposed in contact with the first electrode material, a second electrode material is disposed in contact with the electrolyte material, and a conductive tab disposed in contact with the second electrode material. The first conductive substrate portion, the first electrode material, and the conductive tab extend outward beyond a particular edge of the second conductive substrate portion.

A method of forming a battery electrode by forming, on a first substrate, a polymer template comprising interconnected polymer fibers, forming, on the polymer template, a carbon coating to form a carbon-coated polymer template, removing the carbon-coated polymer template from the first substrate, subsequent to removing the carbon-coated polymer template from the first substrate, removing the polymer template from the carbon coating, and disposing the carbon coating on a second substrate. A solid electrolyte interphase layer (SEI) comprising the carbon coating produced via the method, a battery electrode comprising such an SEI layer, and a battery comprising such a battery electrode are also provided.

A method for producing an electrode for a storage device for storing electrical energy is provided. A main body of the electrode is coated with at least one active material for storing electrical energy. A mixture, which includes the active material and fibers, is provided. The main body is coated with the mixture, which is free of a solvent that receives the fibers and escapes at least predominantly from the mixture after coating of the main body. By coating the main body with the mixture, a coating which includes the active material and the fibers is formed on the main body from the mixture.

Provided are a coating device and a coating method for a non-uniform thickness current collector. The coating device includes a thickness sensor, an offset correction controller, and an offset correction mechanism. The thickness sensor is configured to detect an abrupt thickness change point on the non-uniform thickness current collector and output an abrupt change point signal. The offset correction controller is configured to receive the abrupt change point signal, compare the received abrupt change point signal with a predetermined abrupt thickness change point signal, determine whether the non-uniform thickness current collector is offset and what an offset direction is, and transmit an offset correction signal. The offset correction mechanism is configured to receive the offset correction signal and perform an offset correction action in a direction opposite to the offset direction. This coating device uses the coating method and can accurately coat the coating areas.

A method for manufacturing a flexible battery includes the steps of: preparing an electrode current collector having a current collecting portion provided with at least one through-hole; carrying out electrospinning of electrode slurry including an electrode active material, a binder, a conductive material and a solvent on at least one surface of an edge of the current collecting portion and over the through-hole to form an electrode active material layer on at least one surface of the electrode current collector; and forming a battery provided with the electrode current collector having the electrode active material layer formed thereon as an electrode. A flexible battery obtained from the method is also provided.

A method of co-extruding battery components includes forming a first thin film battery component via hot melt extrusion, and forming a second thin film battery component via hot melt extrusion. A surface treatment is applied to a surface region of at least one of the first and second components so that, relative to a remainder of the at least one component, the surface region has at least one of a decreased inter-particle distance, a decreased amount of polymer binder material, and an increased amount of exposed ionically conductive material. The first and second components are fed through a co-extrusion die to form a co-extruded multilayer thin film.

A method for manufacturing an electrode comprising a polymer matrix trapping an electrolyte, the method comprising the following steps: a) a step of preparing a composition comprising the ingredients intended to be included in the constitution of the electrode; b) a step of forming the electrode, from the composition, on a support; wherein the composition prepared in step a) is a composition in paste form having a dynamic viscosity greater than 5000. Pa.Math.s measured at a shear gradient of 0.1 s-1 and at ambient temperature; and wherein the preparation step consists in introducing the ingredients intended to be included in the constitution of the electrode into a mixer with two co-rotating interpenetrating screws rotating in a closed sleeve, and mixing the ingredients therein, the preparation step being implemented at a temperature less than 100° C.

A nozzle is provided for providing anode material into an electrochemical cell and method of using the same. The nozzle comprises a hollow tubular body extending between an open upper end and an open lower end; a lower deflector spaced apart from the open lower end of the hollow tubular body and forming an annular opening between a deflection surface of the lower deflector and the open lower end of the hollow tubular body; and a support rod connecting the lower deflector with the hollow tubular body, wherein the support rod is suspended within an interior of the hollow tubular body by one or more support trusses.

The invention relates to a method for producing at least one electrode for a battery cell, the method comprising at least the following steps: a) providing a suspension for creating the at least one electrode, at least one target process parameter (1) being specifiable for providing the suspension; b) capturing at least one actual process parameter (2) while providing the suspension in step a); c) performing a prediction of at least one property (4) of the suspension by means of a machine-learned prediction algorithm (5), which estimates the at least one property (4) of the suspension depending on the at least one actual process parameter (2) and taking into account information on previously provided suspensions; d) defining at least one target process parameter (1) for providing the suspension in step a) depending on the prediction results from step c).

A method for manufacturing a positive electrode for a secondary battery includes unwinding a positive electrode base material, transferring the positive electrode base material to a first coating unit through a plurality of rollers, coating an insulating material at predetermined positions on opposite sides of the positive electrode base material with respect to a transfer direction of the positive electrode base material to form insulating portions, drying the insulating material to form insulating portions, coating a positive electrode slurry between the insulating portions on the opposite sides of the positive electrode base material, and drying the positive electrode slurry to form a positive electrode film formed with a positive electrode portion on the positive electrode base material.