System and methods for manufacturing a dry electrode
AssigneeTesla, Inc.
InventorPorter Mitchell
Life of this patent
Estimating the term…
Abstract
A system and methods for manufacturing a dry electrode for an energy storage device are disclosed. The system includes a first dry electrode material delivery system configured to deliver a dry electrode material, a first calendering roll, a second calendering roll, and a controller. The second calendering roll is configured to form a first nip between the first calendering roll and the second calendering roll. The first nip is configured to receive the dry electrode material from the first dry electrode material delivery system, and form a dry electrode film from the dry electrode material. The controller is configured to control a rotational velocity of the second calendering roll to be greater than a rotational velocity of the first calendering roll. 62385256
Claims24
A laminator, comprising:
- a first calendering roll;
- a second calendering roll;
- one or more lamination actuators configured to provide a first force between the first calendering roll and the second calendering roll during lamination of an intermittent electrode;
- and
- one or more gap control actuators configured to provide a second force to the first and the second calendering rolls, wherein the second force opposes and counteracts the first force.
A method of manufacturing an intermittent electrode in a multi-roll calender system, comprising:
- providing one or more intermittent electrode films and a current collector;
- feeding the one or more intermittent electrode films and the current collector between a first calendering roll and a second calendering roll;
- providing a first force between the first calendering roll and the second calendering roll to the current collector;
- and
- providing a second force to the first and the second calendering rolls, wherein the second force opposes and counteracts the first force.
A method of manufacturing an intermittent electrode in a multi-roll calender system, comprising:
- providing one or more electrode films and a current collector;
- feeding the one or more electrode films and the current collector between a first calendering roll and a second calendering roll;
- providing a first force between the first calendering roll and the second calendering roll to the current collector;
- providing a second force to the first and the second calendering rolls, wherein the second force opposes and counteracts the first force;
- and
- peeling a non-laminated film from the current collector to form the intermittent electrode.
Dependencies are inferred from the claim text.