Equipment and method for drying electrode substrate comprising screen for flow volume distribution
AssigneeLG Energy Solution, Ltd.
InventorsYoung Gyu Moon, Kyoung Ho Kim, Dong Hyun Kim, Young Geun Kim
Life of this patent
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Abstract
The present technology relates to an equipment and method for drying an electrode substrate including a screen for distributing the flow of hot air, and according to the present technology, it is possible to uniformly dry the electrode substrate in the width direction. The equipment includes a drying furnace configured to dry the electrode substrate, a hot air discharge unit including a nozzle configured to discharge hot air; and a screen positioned on a hot air discharge line of the hot air discharge unit configured to control the hot air discharged from the nozzle.
Claims17
Equipment for drying an electrode substrate, the equipment comprising:
- a drying furnace which dries an electrode substrate;
- a hot air discharge unit including a nozzle configured to discharge hot air;
- and
- a screen positioned on a hot air discharge line of the hot air discharge unit, the screen configured to control the hot air discharged from the nozzle,
- wherein the screen comprises a center part and a side part on a basis of a length in a width direction of the electrode substrate and satisfies a first condition:
- Dcenter>1.3×Dside,
- wherein Dcenter denotes an average opening ratio in a center part region on a basis of the length in the width direction of the electrode substrate, and
- wherein Dside denotes an average opening ratio of side parts formed on opposing side surfaces of the center part,
- wherein the center part includes an open region defining an aperture and boundary regions which are formed on both sides of the open region and have a plurality of through holes smaller than the aperture, and
- wherein the side part has a closed structure.
Equipment for drying an electrode substrate, the equipment comprising:
- a drying furnace which dries an electrode substrate;
- a hot air discharge unit including a nozzle configured to discharge hot air;
- and
- a screen positioned on a hot air discharge line of the hot air discharge unit, the screen configured to control the hot air discharged from the nozzle,
- wherein the screen comprises a center part and a side part on a basis of a length in a width direction of the electrode substrate and satisfies a first condition:
- Dcenter>1.3×Dside,
- wherein Dcenter denotes an average opening ratio in a center part region on a basis of the length in the width direction of the electrode substrate,
- wherein Dside denotes an average opening ratio of side parts formed on opposing side surfaces of the center part, and
- wherein a wind speed of the hot air applied to each region of the electrode substrate corresponding to the screen satisfies a second condition:
- 1.5≤(WScenter)/(WSside)≤10,
- wherein WScenter denotes a wind speed (m/s) of hot air applied to the electrode substrate corresponding to the center part region of the screen,
- wherein WSside denotes an average wind speed (m/s) applied to the electrode substrate corresponding to a side part region of the screen.
Dependencies are inferred from the claim text.