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US 2022/0102694 A1Published application
Electrode Slurry Coating Method and Apparatus Comprising Pressure Adjustment Member
AssigneeLG Energy Solution, Ltd.
InventorsHyeon Min Song, Duk Hyun Ryu
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Abstract
The present technology relates to an electrode slurry coating method and apparatus comprising a pressure adjustment member for adjusting the discharge pressure of slurry, and enables electrode slurry to be discharged under constant pressure even when a coated part and an uncoated part are repeatedly formed on a current collector layer.
Claims13
An apparatus for coating an electrode slurry, comprising:
- an electrode slurry discharge flow path configured to discharge an electrode slurry through a slit formed on an interface between first and second dies;
- an electrode slurry storage tank configured to be fluidly connectable to the electrode slurry discharge flow path and store the electrode slurry therein at a static pressure condition;
- and
- a static pressure opening and closing valve configured to be located on a flow path on which the electrode slurry discharge flow path is fluidly connected to the electrode slurry storage tank,
- wherein an opening or closing of the static pressure opening and closing valve is determined according to a difference between a pressure of the electrode slurry discharge flow path and an internal pressure of the electrode slurry storage tank.
2 more elements
A method for coating an electrode slurry, the method comprising:
- discharging an electrode slurry on a current collector layer through a slit-shaped electrode slurry discharge flow path formed on an interface between first and second dies,
- wherein during the of discharging the electrode slurry, a process of starting a discharge of the electrode slurry and a process of interrupting the discharge of the electrode slurry are repeated at regular intervals, and
- wherein a pressure of the electrode slurry discharged by a pressure regulating member formed on the slit-shaped discharge flow path is maintained at a static pressure.
Dependencies are inferred from the claim text.