A roll pressing device may include a roller configured to pressurize a substrate provided with an active material, and provided with a pair of cooling lines through which a coolant circulates, respectively, a shaft supported by a bearing and configured to drive the roller, a pair of supply lines provided on both sides of the shaft and configured to supply the coolant to the pair of cooling lines, respectively, and a pair of discharge lines provided on the both sides of the shaft and configured to discharge the coolant having cooled the roller from the pair of cooling lines, respectively, where the pair of cooling lines are separated from each other.

An electrode manufacturing device is provided. The electrode manufacturing device includes a pressing roll configured to apply pressure to an uncoated part of the electrode, wherein the pressing roll comprises a central part, a first end part and a second end part, wherein the uncoated part comprises an insulating coated part and a non-insulating coated part, wherein the first end part is adjacent to a boundary between the insulating coated part and the non-insulating coated part, wherein the second end part is located at a portion far away from the insulating coated part, and wherein a first outer diameter of the central part connected to the first end part is greater than a second outer diameter of the central part connected to the second end part.

An electrode manufacturing device is provided. The electrode manufacturing device includes a pressing roll configured to apply pressure to an uncoated part of the electrode, wherein the pressing roll comprises a central part, a first end part and a second end part, wherein the uncoated part comprises an insulating coated part and a non-insulating coated part, wherein the first end part is adjacent to a boundary between the insulating coated part and the non-insulating coated part, wherein the second end part is located at a portion far away from the insulating coated part, and wherein a first outer diameter of the central part connected to the first end part is greater than a second outer diameter of the central part connected to the second end part.

A manufacturing apparatus for an electrode plate includes: a conveyance line of the electrode plate having an applied portion in which an electrode active material is applied to a surface of a base material and a non-applied portion in which the electrode active material is not applied to the surface of the base material; a compression roll provided in the conveyance line and compressing the applied portion; and a tension reducing mechanism provided in at least one of an upstream section ending at the compression roll or a downstream section starting at the compression roll in the conveyance line and reducing a tension applied to the electrode plate.

A manufacturing apparatus for an electrode plate includes: a conveyance line of the electrode plate having an applied portion in which an electrode active material is applied to a surface of a base material and a non-applied portion in which the electrode active material is not applied to the surface of the base material; a compression roll provided in the conveyance line and compressing the applied portion; and a tension reducing mechanism provided in at least one of an upstream section ending at the compression roll or a downstream section starting at the compression roll in the conveyance line and reducing a tension applied to the electrode plate.

The invention relates to a temperature-controllable calender roller for manufacturing an electrode track using the dry electrode method; having a roller body and two roller journals extending away from the end face thereof; and having a fluid channel arrangement for temperature control of the roller body, which has a central bore extending axially at least in sections through the roller body and through at least one of the roller journals and a plurality of temperature control channels distributed over the circumference of the roller body, extending below the roller body surface and parallel thereto, which are fluidically coupled to the central bore; and having an inlet line and an outlet line for a thermal fluid, which are connected to the fluid channel arrangement, wherein the inlet line has a feed pipe extending at least in sections into the central bore for introducing the thermal fluid into the fluid channel arrangement, and wherein the outlet line is fluidically coupled to an outlet gap of the fluid channel arrangement formed between the outside of the feed pipe and the inner diameter of the central bore.

The invention relates to a temperature-controllable calender roller for manufacturing an electrode track using the dry electrode method; having a roller body and two roller journals extending away from the end face thereof; and having a fluid channel arrangement for temperature control of the roller body, which has a central bore extending axially at least in sections through the roller body and through at least one of the roller journals and a plurality of temperature control channels distributed over the circumference of the roller body, extending below the roller body surface and parallel thereto, which are fluidically coupled to the central bore; and having an inlet line and an outlet line for a thermal fluid, which are connected to the fluid channel arrangement, wherein the inlet line has a feed pipe extending at least in sections into the central bore for introducing the thermal fluid into the fluid channel arrangement, and wherein the outlet line is fluidically coupled to an outlet gap of the fluid channel arrangement formed between the outside of the feed pipe and the inner diameter of the central bore.

A method for texturing a substrate includes 3-D printing a pattern onto a substrate to form a texture. The pattern has a root mean square roughness between 40 to 1000 microns and an autocorrelation function greater than 0.5 for distances less than 50 microns.

A method for texturing a substrate includes 3-D printing a pattern onto a substrate to form a texture. The pattern has a root mean square roughness between 40 to 1000 microns and an autocorrelation function greater than 0.5 for distances less than 50 microns.

The present invention relates to an electrode rolling apparatus for applying pressure to a non-coated portion of an electrode.