Provided are a gravure coating device for preparing a large-width ultrathin metal lithium strip and the preparation method, relating to the technical field of preparation of metal lithium materials. The device comprises: a lithium-melting tank (17), a micro-gravure roller (5), a unwinding device, a substrate back roller (7), a hot pressing device and a winding device; wherein the lower portion of the micro-gravure roller (5) is immersed into the liquid lithium in the lithium-melting tank (17); one side of the micro-gravure roller (5) is provided with a hot scraper (6), and the end portion of the hot scraper (6) is in contact with the surface of the micro-gravure roller (5); the substrate back roller (7) is arranged diagonally above the micro-gravure roller (5); the unwinding device is arranged on one side of the substrate back roller (7); the winding device is arranged above the substrate back roller (7); the hot pressing device is arranged between the substrate back roller (7) and the winding device; after passing through the substrate back roller (7) and the hot pressing device, the substrate on the unwinding device is winded onto the winding device. The device is simple in structure and reasonable in design, effectively improves the coating uniformity, and realizes automatic production of ultrathin metal lithium strips with a thickness of 1-50 m, thereby greatly improving work efficiency and product quality.

Powder amount adjustment unit (11) adjusts the amount of powder (4) by leveling powder (4) supplied onto sheet (5). Powder amount adjustment unit (11) includes squeegee (1) having a first end and a second end, first vibrator (2) that is disposed at the first end of squeegee (1) and excites a wave at the first end of squeegee (1), and second vibrator (3) that is disposed at the second end of squeegee (1) and absorbs the wave at the second end of squeegee (1). Squeegee (1) vibrates with a traveling wave from the first end toward the second end of squeegee (1).

According to an embodiment, a coating device and a coating method capable of forming a uniform coating film are provided. A coating device 100 includes a coating bar, a base material conveyance member that conveys a base material, and a coating liquid supply member that supplies a coating liquid to the coating bar. Further, the coating device 100 further includes a leveling bar provided at a position downstream of the coating bar in a coating direction, and the leveling bar is arranged at a position where the coating liquid forms a meniscus between the leveling bar and the base material.

A method 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.

Proposed is an electrode coating apparatus including a coating roller brought into contact with a base substrate and configured to rotate for the base substrate to move, a slot die coater configured to supply slurry on one surface of the base substrate in contact with the coating roller, and a blocking roller, in an upper stream in which the base substrate moves toward the coating roller, located between the coating roller and the base substrate and configured to block air flowing between the coating roller and the base substrate, and the electrode coating apparatus is configured to minimize air flowing between the coating roller and the base substrate to improve the coating uniformity of an electrode active material.

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.

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.

An apparatus and method of applying a finish or paint coating in a prefinishing or finishing line to a fencing panel or picket that disguises the screen-back texture of the engineered wood substrate. After paint or similar coating is applied (such as by one or more spray nozzles) to a face to a fence picket or fencing product or component, the fence picket passes under a roller, brush, or roller brush or similar paint applicator while the paint is still wet. The roller/brush removes some of the paint and applies an angled pattern to the face, which disguises the screen-back texture of the substrate.

A method is provided for manufacturing a dry electrode for an energy storage device which is operatively associated with system that 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.

A dry electrode manufacturing device is disclosed. The dry electrode manufacturing device may include: an inserting part that supplies an electrode powder for dry electrode manufacturing; a guide chute that passes through the electrode powder supplied from the inserting part; a dispersing rod provided in the guide chute to disperse the electrode powder and adjust a particle size distribution of the electrode powder; and a rolling roll that compresses the electrode powder distributed to have an adjusted, uniform particle size into an electrode member in the form of a sheet that has a set or predetermined thickness.