Patent ID: 11919034
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  H  Y | IPC B  H

Claim 5:
6. An intermittent coating device, comprising:
a die used to apply a coating material onto a material to be coated, the die comprising a discharge port for the coating material and also comprising a single manifold that communicates with the discharge port;
a first intermittent valve and a second intermittent valve capable of switching between a first state in which the coating material is supplied to the die and a second state in which supply of the coating material is stopped;
a first die supply pipe conduit that connects the first intermittent valve and the single manifold;
a second die supply pipe conduit that connects the second intermittent valve and the single manifold; and
a processor configured to control the first intermittent valve and the second intermittent valve, wherein
the first intermittent valve and the second intermittent valve have different timings of switching between the first state and the second state,
both the first intermittent valve and the second intermittent valve are connected to the single manifold,
both the first die supply pipe conduit and the second die supply pipe conduit are connected to the single manifold without being merged,
when a predetermined period of time has elapsed after the first intermittent valve placed in the first state is switched to the second state, the processor is configured to switch the second intermittent valve placed in the second state to the first state,
when a predetermined period of time has elapsed after the second intermittent valve placed in the first state is switched to the second state, the processor is configured to switch the first intermittent valve placed in the second state to the first state, and
the processor is configured to:
switch one of the first intermittent valve and the second intermittent valve in the first state to apply the coating material on the material, wherein the coating material applied to the material forms a single-layer of the coating material, and
switch both the first intermittent valve and the second intermittent valve in the second state for the predetermined period of time not to apply the coating material on the material,

the material to be coated is a current collector of a secondary battery, and
the coating material is electrode slurry of a secondary battery.