Abstract: A coating die head and a coating apparatus including one are provided. The coating die head includes a first die head and a second die head. The first die head includes a first die head body and multiple first lip modules, and the first lip modules are spliced sequentially along a first direction. Each of the first lip modules is detachably connected to the first die head body, each of the first lip modules is provided with a first groove, the first grooves of the plurality of first lip modules are spliced to form a main chamber for storing a slurry, and the first direction is a length direction of the main chamber. In the coating die head, the first lip modules may be replaced or recombined to change the length of the main chamber so that the coating die head is suitable for producing electrode plates with different widths.

Abstract: An electrode sheet includes a current collector as well as an insulating layer and an active material layer arranged on the current collector along a first direction, the insulating layer is first formed on the current collector, and then the active material layer is formed on the current collector, so that an edge portion on one side of the active material layer close to the insulating layer covers a first edge region of the insulating layer.

Abstract: The present application provides a coating die, a coating device and a coating method. The coating die includes a first die and a second die, the first die is connected to the second die and enclosed to form a slot to output slurry; the first die includes a die body, a lip portion and a lip adjustment assembly; the lip portion is connected to the die body and is located at a discharge end of the slot; the lip adjustment assembly is used for adjusting a temperature of the lip portion to control a deformation of the lip portion. The solution of the present application can improve the consistency of coating.

Abstract: A coating apparatus, and an electrode plate production system and method are provided, where the coating apparatus includes a roller capable of rotating around its axis. The roller includes: a body portion; and a protrusion portion disposed on an outer surface of the body portion and extending along an entire circumference of the body portion. A surface of the protrusion portion located on an outermost side in a radial direction of the body portion serves as a coating surface.

Abstract: A coating die head includes a die head body and at least two regulators. A discharge channel communicating with an external environment is disposed on the die head body. The discharge channel includes a discharge port. The discharge port extends along a first direction. The first direction intersects a discharge direction of the discharge channel. The at least two regulators are disposed on the die head body and distributed along the first direction. At least a part of each regulator is movable in the discharge channel along a second direction. The second direction is perpendicular to the discharge direction and the first direction. A dimension along the first direction differs between the at least two regulators.

Abstract: A battery electrode plate includes an electrode plate body, and each of two surfaces of the electrode plate body is provided with an active material layer. The battery electrode plate further includes an identification layer. The identification layer is arranged on at least one surface, and the coatings on the two surfaces are different in shape or position.

Abstract: A flattening device includes a main roller and a plurality of sleeves. The plurality of sleeves are sleeved on the main roller at intervals in an axial direction of the main roller. At least one of the sleeves is detachably connected to the main roller, so that positions of the sleeves in the axial direction of the main roller are adjustable, and the sleeves are in contact with the electrode plate to flatten the electrode plate when the electrode plate passes through the sleeves.

Abstract: An electrode plate supporting device may be used in coordination with the laser assembly and may include a body constructed with an abutting surface for abutting against an electrode plate to tension the electrode plate. The laser assembly may be configured to emit laser to the abutting surface. During laser cutting, the electrode plate may abut against the abutting surface and closely fits the abutting surface to extend fully and thus may be in a flattened state, and therefore, the problem of defocusing caused by a wavy edge may be solved. Moreover, supported by the abutting surface, the electrode plate may be tensioned and not prone to shaking, and therefore, problems such as failing to cut off the incoming material due to easy shaking of the electrode plate may be effectively solved.

Abstract: An electrode plate manufacturing apparatus includes a first coating device configured to apply a first active material coating on a first side of a current collector; a perforating device configured to perforate the current collector from a second side of the current collector, the second side being opposite to the first side; and a second coating device configured to apply a second active material coating on the second side of the current collector, where the perforating device is located downstream of the first coating device along a travel path of the current collector, and the second coating device is located downstream of the perforating device along the travel path of the current collector.

Abstract: Disclosed is a coating equipment. The coating equipment may include a back roll, a coating die head, and a detection assembly. The coating die head may have a coating opening facing towards the back roll, and the coating opening may extend in an axial direction of the back roll. The detection assembly may be configured to detect a position of the coating die head relative to the back roll. The detection assembly may include a level mounted on the coating die head.

Abstract: Embodiments relate to a coating system. A substrate includes a first coating region and a second coating region adjacent to the first coating region. The coating system includes a first gravure mechanism and a second gravure mechanism, where the first gravure mechanism is configured to apply a first functional layer onto the first coating region, and the second gravure mechanism can receive the substrate having the first functional layer and apply a second functional layer made of a material different from that of the first functional layer onto the second coating region. In the coating system, with provision of first gravure mechanism and the second gravure mechanism, when the substrate is continuously transported in a same direction, the two functional layers made of different materials can be sequentially applied onto corresponding regions of the substrate.

Abstract: An anilox roller and a coating apparatus are provided. The anilox roller includes a roller body and an annular boss formed on a surface of the roller body. The annular boss extends in a circumferential direction of the roller body. The annular boss includes a circumferential surface, a first side surface, and a second side surface. The first side surface and the second side surface face each other in an axial direction of the roller body. The circumferential surface connects the first side surface and the second side surface, and the circumferential surface includes an anilox region having an etched anilox. A first blank region without an etched anilox is arranged between the anilox region and the first side surface.

Abstract: Embodiments relate to a coating system. A substrate includes a first coating region and a second coating region adjacent to the first coating region. The coating system includes a first gravure mechanism and a second gravure mechanism, where the first gravure mechanism is configured to apply a first functional layer onto the first coating region, and the second gravure mechanism can receive the substrate having the first functional layer and apply a second functional layer made of a material different from that of the first functional layer onto the second coating region. In the coating system, with provision of first gravure mechanism and the second gravure mechanism, when the substrate is continuously transported in a same direction, the two functional layers made of different materials can be sequentially applied onto corresponding regions of the substrate.

Abstract: An electrode plate extension device includes a first roller and a second roller. The first roller includes a first body and a protrusion. The protrusion is provided on an outer peripheral surface of the first body and extends in a circumferential direction of the first body. The second roller includes a second body and a groove. The groove is provided in an outer peripheral surface of the second body and extends in a circumferential direction of the second body. The first roller and the second roller are arranged in parallel, a gap for allowing an electrode plate to pass is formed between the first roller and the second roller, the protrusion is positioned corresponding to the groove, and the protrusion is configured to press against an uncoated region of the electrode plate to cause a plastic deformation of the uncoated region.

Abstract: Provided are an air outlet apparatus and a drying device. The air outlet apparatus includes: a housing provided with a first cavity and an air inlet and an air outlet communicated with the first cavity; and a wind speed adjusting assembly, where the first cavity is provided with a plurality of wind speed adjusting assemblies distributed in a first direction, such that the first cavity is divided into a plurality of air outlet sections distributed in the first direction by the wind speed adjusting assembly; and where each of the wind speed adjusting assemblies is configured to open or close at least some air outlets, so as to adjust outlet wind speed of each of the air outlet sections. The drying device includes the above air outlet apparatus.

Abstract: The present application discloses a nip roller, pole piece flattening equipment and a pole piece production system. The nip roller includes: a roller body. The side surface of the roller body is provided with a plurality of ridges. Each ridge is provided with a first part and a second part, where the first part is provided with part of first threads, the second part is provided with part of second threads, and a rotation direction of the first threads is opposite to that of the second threads; rotation directions of the first threads are the same, and rotation directions of the second threads are the same; and plurality of ridges are sequentially arranged at intervals in a rotation direction of the roller body, lead angles of the first threads on the first parts are sequentially decreased, and lead angles of the second threads on the second parts are sequentially decreased.