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: 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: 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: 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: 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.