# US 2025/0146751 A1 · Gas injection nozzle for drying electrode plate and drying apparatus for electrode plate including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0146751 A1 - Document ID: US20250146751A1 - Status: Published application - Kind: A1 - Application number: 18/932,504 - Filed: 2024-10-30 - Published: 2025-05-08 - Earliest claimed: 2023-11-02 - Assignees: SK Innovation Co., Ltd.; SK On Co., Ltd. - Applicants: SK Innovation Co., Ltd.; SK On Co., Ltd. - Inventors: Jun Young LEE; Ju Hyun KIM - Web page: https://patentgrep.com/patent/US20250146751A1 ## CPC - F26B 21/50: Ducting arrangements from the source of air or other gases to the materials or objects being dried - F26B 3/04: the gas or vapour circulating over or surrounding the materials or objects to be dried (F26B3/14 takes precedence) - F26B 13/10: Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials (heating processes F26B3/00) - F26B 21/55: Outlets for directing or distributing the air or other gases - H01M 4/04: Processes of manufacture in general - Y02E 60/10: Energy storage using batteries - F26B: DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM (drying devices for combines A01D41/133; racks for drying fruit or vegetables A01F25/12; drying foodstuffs A23; drying hair A45D20/00; body-drying implements A47K10/00; drying household articles A47L; drying gases or vapours B01D; chemical or physical processes for dewatering or like separating liquids from solids B01D43/00; centrifugal apparatus B04; drying ceramics C04B33/30; drying yarns or fabrics in association with some other form of treatment D06C; drying frames for laundry without heating or positive air circulation, domestic laundry-or spin-driers, wringing or hot pressing laundry D06F; furnaces, kilns, ovens F27) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Embodiments of the present disclosure relate to a gas injection nozzle for drying an electrode plate, coupled to a chamber of a drying apparatus for the electrode plate, and including a first nozzle body including at least one inlet opening configured to allow the drying gas to flow therein; a second nozzle body connected to the first nozzle body and including a plurality of injection holes configured to inject the drying gas outside of the gas injection nozzle; and a partition plate disposed between the first nozzle body and the second nozzle body, and including at least one communication hole configured to allow the drying gas to flow from the at least one inlet opening to the plurality of injection holes. At least a portion of the first nozzle body is protruding into a gas supply space of the chamber so as to be disposed inside the chamber. ## Claims ### Claim 1 A gas injection nozzle for drying an electrode plate, coupled to a chamber of a drying apparatus for the electrode plate, including the chamber for supplying a drying gas for drying the electrode plate, the gas injection nozzle comprising: a first nozzle body including at least one inlet opening configured to allow the drying gas to flow therein; a second nozzle body connected to the first nozzle body and including a plurality of injection holes configured to inject the drying gas outside of the gas injection nozzle; and a partition plate disposed between the first nozzle body and the second nozzle body, and including at least one communication hole configured to allow the drying gas to flow from the at least one inlet opening to the plurality of injection holes, wherein at least a portion of the first nozzle body is protruding into a gas supply space of the chamber so as to be disposed inside the chamber. ### Claim 2 (depends on 1) The gas injection nozzle for drying an electrode plate of claim 1, wherein the second nozzle body is disposed outside of the chamber. ### Claim 3 (depends on 1) The gas injection nozzle for drying an electrode plate of claim 1, wherein the first nozzle body includes a first plate in which the at least one inlet opening is formed, and a first sidewall extending from both ends of the first plate. ### Claim 4 (depends on 3) The gas injection nozzle for drying an electrode plate of claim 3, wherein the at least one inlet opening has a slit shape crossing the first plate in a longitudinal direction of the first nozzle body. ### Claim 5 (depends on 4) The gas injection nozzle for drying an electrode plate of claim 4, wherein the at least one communication hole has a slit shape crossing the partition plate in a longitudinal direction of the partition plate. ### Claim 6 (depends on 5) The gas injection nozzle for drying an electrode plate of claim 5, wherein the first plate and the partition plate are spaced apart from each other in a first direction, and wherein the at least one communication hole is disposed not to face the at least one inlet opening based on the first direction. ### Claim 7 (depends on 5) The gas injection nozzle for drying an electrode plate of claim 5, wherein a number of the at least one communication hole is greater than a number of the at least one inlet opening. ### Claim 8 (depends on 1) The gas injection nozzle for drying an electrode plate of claim 1, wherein the second nozzle body includes a second plate in which the plurality of injection holes are formed, and a second sidewall extending from both ends of the second plate, and wherein the first nozzle body includes a first sidewall connected to the second sidewall and a cap plate covering the first sidewall. ### Claim 9 (depends on 8) The gas injection nozzle for drying an electrode plate of claim 8, wherein the cap plate includes a first part spaced apart from an upper end of the first sidewall, and a second part extending from both ends of the first part, and wherein the at least one inlet opening is formed between an outer surface of the first sidewall and the second part. ### Claim 10 (depends on 8) The gas injection nozzle for drying an electrode plate of claim 8, wherein the cap plate includes a cross-section having an upside-down U-Shape. ### Claim 11 (depends on 9) The gas injection nozzle for drying an electrode plate of claim 9, wherein a second gap between the upper end of the first sidewall and the first part has a value of 0.7 to 1.3 times a first gap between the outer surface of the first sidewall and the second part. ### Claim 12 (depends on 9) The gas injection nozzle for drying an electrode plate of claim 9, wherein a height of the second part has a value of 10% or more and 90% or less of a height of the first sidewall. ### Claim 13 (depends on 1) The gas injection nozzle for drying an electrode plate of claim 1, wherein a total cross-sectional area of the at least one communication hole has a value greater than a value of a total cross-sectional area of the at least one inlet opening. ### Claim 14 (depends on 1) The gas injection nozzle for drying an electrode plate of claim 1, wherein the partition plate divides a flow space formed between the first nozzle body and the second nozzle body into a first flow space opposing the first nozzle body and a second flow space opposing the second nozzle body. ### Claim 15 (depends on 2) The gas injection nozzle for drying an electrode plate of claim 2, wherein the second nozzle body includes a coupling portion coupled to the chamber through a fastening member, and wherein the first nozzle body has a shape protruding from the coupling portion toward the gas supply space of the chamber. ### Claim 16 (depends on 1) The gas injection nozzle for drying an electrode plate of claim 1, wherein the plurality of injection holes have a circular cross-sectional shape. ### Claim 17 A drying apparatus for an electrode plate, the drying apparatus comprising: a chamber having a gas supply space through which drying gas for drying the electrode plate flows; and a plurality of gas injection nozzles coupled to the chamber to communicate with the gas supply space of the chamber, wherein the plurality of gas injection nozzles include: a first nozzle body including at least one inlet opening configured to allow drying gas of the gas supply space to flow therein; a second nozzle body connected to the first nozzle body and including a plurality of injection holes configured to inject the drying gas onto the electrode plate; and a partition plate disposed between the first nozzle body and the second nozzle body and including at least one communication hole configured to allow the drying gas to flow from the at least one inlet opening to the plurality of injection holes, wherein at least a portion of the first nozzle body has a shape protruding into the gas supply space so as to be disposed in the gas supply space of the chamber. ### Claim 18 (depends on 17) The drying apparatus of claim 17, wherein the second nozzle body includes a coupling portion coupled to the chamber through a fastening member, and wherein the first nozzle body has a shape protruding from the coupling portion toward the gas supply space of the chamber. ### Claim 19 (depends on 17) The drying apparatus of claim 17, wherein the chamber includes an inlet port for supplying the drying gas from outside of the chamber to the gas supply space, and wherein the inlet port is configured to supply the drying gas in a longitudinal direction of the gas injection nozzle. ### Claim 20 (depends on 17) The drying apparatus of claim 17, wherein the chamber includes a first chamber through which the drying gas injected onto a first surface of the electrode plate flows, and a second chamber through which the drying gas injected onto a second surface of the electrode plate flows, and wherein a plurality of gas injection nozzles are installed in at least one of the first chamber or the second chamber.