Flexible air supply damper system for preventing overdrying-caused defect of secondary battery electrode plate

Patent metadata

Field	Value
Publication number	US-11670751-B2
Application number	US-202117234198-A
Country	US
Kind code	B2
Filing date	Apr 19, 2021
Priority date	Apr 17, 2020
Publication date	Jun 6, 2023
Grant date	Jun 6, 2023

Abstract

Provided is a flexible air supply damper system for preventing an overdrying-caused defect of a secondary battery electrode plate, the flexible air supply damper system including: a fluid supply unit supplying a fluid; a heating unit heating the fluid supplied through the fluid supply unit; a drying unit drying the electrode plate while receiving the fluid heated through the heating unit; a damper unit splitting the fluid passing through the heating unit to control an amount of the fluid to be introduced into the drying unit; and a discharge unit through which the fluid used in the drying unit and the fluid split out of the damper unit are discharged. By controlling the amount of the fluid to be introduced into the drying unit, the electrode plate is prevented from being overdried.

First claim

What is claimed is:

1. A flexible air supply damper system comprising:
a fluid supply unit supplying a fluid;
a heating unit heating the fluid supplied through the fluid supply unit;
a drying unit drying an electrode plate while receiving the fluid heated through the heating unit;
a damper unit splitting the fluid passing through the heating unit to control an amount of the fluid to be introduced into the drying unit; and
a discharge unit through which the fluid used in the drying unit and the fluid split out of the damper unit are discharged.

2. The flexible air supply damper system of claim 1 , wherein the discharge unit includes a discharge means discharging the fluid, a first discharge passage allowing the damper unit and the discharge means to communicate with each other, and a second discharge passage allowing the drying unit and the discharge means to communicate with each other.

3. The flexible air supply damper system of claim 1 , further comprising a circulation unit reintroducing the fluid from the drying unit via the heating unit.

4. The flexible air supply damper system of claim 3 , wherein the fluid supply unit includes an introduction means introducing the fluid, and an introduction passage guiding the fluid introduced by the introduction means to the heating unit.

5. The flexible air supply damper system of claim 4 , wherein the circulation unit includes a circulation-supply means positioned between the introduction means and the heating unit and supplying, to the heating unit, at least one of the fluid introduced through the introduction means and the fluid introduced through the drying unit, and a circulation passage allowing the drying unit and the introduction passage positioned between the introduction means and the circulation-supply means to communicate with each other.

6. The flexible air supply damper system of claim 5 , further comprising a flow rate measurement unit positioned on the circulation passage to measure a flow rate of the fluid introduced into the introduction passage through the circulation passage and provide information on the measured flow rate to the discharge means.

7. The flexible air supply damper system of claim 6 , wherein the discharge means controls an amount of the fluid to be discharged based on the information on the flow rate received from the flow rate measurement unit to keep an amount of the fluid circulating through the circulation passage constant.

Assignees

• Sk Innovation Co Ltd
• Sk On Co Ltd

Inventors

• Lee Sang Hwa
• Park Se Hun
• Jeong Hoe Sun

Classifications

• F26B21/37

  Velocity of flow; Quantity of flow · CPC title

• F26B21/50

  Ducting arrangements from the source of air or other gases to the materials or objects being dried · CPC title

• F26B21/35 Primary

  Temperature; Pressure · CPC title

• F26B21/25

  partly outside the drying enclosure · CPC title

• F26B21/001 Primary

  Air generating units, e.g. movable or independent of drying enclosure · CPC title