Abstract: An electrode plate forming apparatus includes an unwinding device, a lithium replenishment device, a plurality of winding devices and a protection device. The lithium replenishment device is configured to clad a lithium strip to a surface of a master electrode plate body and form a master electrode plate. A slitting device is configured to slit the master electrode plate into a plurality of electrode plates. The winding devices are configured to pull the electrode plates to travel, each of the winding devices winding one corresponding electrode plate. The slitting device is disposed in an accommodating cavity of the protection device. The protection device is configured to at least partially separate particles from an external environment in a case that the slitting device slits the master electrode plate and generates the particles.

Abstract: A device for supplementing an electrode plate with lithium and a method for supplementing an electrode plate with lithium. The device for supplementing an electrode plate with lithium includes a first lithium strip unwinding mechanism, an electrode plate unwinding mechanism, a roller pressing mechanism, a first traction mechanism, an electrode plate winding mechanism, and a first coating mechanism. The first lithium strip unwinding mechanism is configured to dispose a lithium strip, and the electrode plate unwinding mechanism is configured to dispose an electrode plate. The roller pressing mechanism includes a first calendering roller, a first laminating roller, and a second laminating roller. In a traveling direction of the lithium strip, the first coating mechanism precedes the roller pressing mechanism, and the first coating mechanism is configured to apply a coating layer on a surface of the lithium strip.

Abstract: The present application provides a lithium supplementing apparatus and a lithium supplementing method, which can efficiently perform lithium supplementing on a battery. The lithium supplement apparatus includes: a plurality of calendering devices for respectively transferring lithium on a plurality of lithium strips to a plurality of first regions distributed on a coating device in a first direction, the first direction being a width direction of a first electrode plate to be subjected to lithium supplementing; the coating device for respectively coating the lithium of the plurality of first regions onto a plurality of second regions corresponding to the plurality of first regions on the first electrode plate; and a segmenting device for segmenting the first electrode plate according to the plurality of second regions, so as to form a plurality of segmented second electrode plates.

Abstract: This application discloses a lithiation device for applying a lithium film on an electrode plate. The lithiation device includes: a rolling mechanism including a first roller and a second roller, the two rollers configured to roll the electrode plate and the lithium film to apply the lithium film on the electrode plate; an adjustment mechanism connected to the rolling mechanism and configured to adjust a gap and/or a rolling force between the first roller and the second roller; a first monitoring mechanism configured to monitor a length of the electrode plate after the electrode plate passes through the rolling mechanism; and a controller configured to control the adjustment mechanism based on a comparison result of the length monitored by the first monitoring mechanism and a target length so that the length of the electrode plate after the electrode plate passes through the rolling mechanism approximates to the target length.

Abstract: An electrode plate forming apparatus includes an unwinding device, a lithium replenishment device, a plurality of winding devices and a protection device. The lithium replenishment device is configured to clad a lithium strip to a surface of a master electrode plate body and form a master electrode plate. A slitting device is configured to slit the master electrode plate into a plurality of electrode plates. The winding devices are configured to pull the electrode plates to travel, each of the winding devices winding one corresponding electrode plate. The slitting device is disposed in an accommodating cavity of the protection device. The protection device is configured to at least partially separate particles from an external environment in a case that the slitting device slits the master electrode plate and generates the particles.

Abstract: A prelithiation device and a prelithiation method, are described. The prelithiation device comprises a first roller, a second roller, a third roller, and a first coating mechanism. The second roller is used to cooperate with the first roller to jointly roll a lithium ribbon to adhere the lithium ribbon to the second roller, the lithium ribbon comprising two first surfaces opposite each other in an axial direction of the second roller; the third roller is used to cooperate with the second roller to jointly roll an electrode plate to bond the lithium ribbon adhering to the second roller to the electrode plate; and the first coating mechanism is disposed upstream of the second roller and is configured to coat the first surfaces with a release agent.

Abstract: A disposal system for battery includes: a moving mechanism; an accommodating mechanism, including a first side and a second side that are opposite each other along a length direction of the accommodating mechanism; a plurality of immersion mechanisms, arranged in sequence along the length direction of the accommodating mechanism, the plurality of immersion mechanisms are movably connected to the accommodating mechanism, and the immersion mechanism accommodates an immersion liquid; and a transfer mechanism, arranged opposite the first side of the accommodating mechanism and configured to transfer waste of a battery to the immersion mechanisms. The accommodating mechanism is provided in plurality, and the plurality of accommodating mechanisms are arranged along a width direction of the accommodating mechanism. In adjacent two of the accommodating mechanisms, the second side of one of the accommodating mechanisms is opposite the first side of another one of the accommodating mechanisms.

Abstract: A prelithiation device may comprise: a bonding structure comprising a first roller, a second roller and a third roller, which may be sequentially disposed adjacent to each other, the first roller and the second roller being used to roll the lithium ribbon, the rolled lithium ribbon adhering to the second roller, and the second roller and the third roller being used to bond the lithium ribbon adhering to the second roller to the substrate, the lithium ribbon comprising two first surfaces opposite each other in a width direction of the lithium ribbon and a second surface facing the second roller; and a coater disposed upstream of the bonding structure in a running direction of the lithium ribbon and configured to simultaneously coat the second surface and at least one of the first surfaces with a release agent.

Abstract: This application discloses a lithiation device for applying a lithium film on an electrode plate. The lithiation device includes: a rolling mechanism including a first roller and a second roller, the two rollers configured to roll the electrode plate and the lithium film to apply the lithium film on the electrode plate; an adjustment mechanism connected to the rolling mechanism and configured to adjust a gap and/or a rolling force between the first roller and the second roller; a first monitoring mechanism configured to monitor a length of the electrode plate after the electrode plate passes through the rolling mechanism; and a controller configured to control the adjustment mechanism based on a comparison result of the length monitored by the first monitoring mechanism and a target length so that the length of the electrode plate after the electrode plate passes through the rolling mechanism approximates to the target length.

Abstract: A device for supplementing an electrode plate with lithium and a method for supplementing an electrode plate with lithium. The device for supplementing an electrode plate with lithium includes a first lithium strip unwinding mechanism, an electrode plate unwinding mechanism, a roller pressing mechanism, a first traction mechanism, an electrode plate winding mechanism, and a first coating mechanism. The first lithium strip unwinding mechanism is configured to dispose a lithium strip, and the electrode plate unwinding mechanism is configured to dispose an electrode plate. The roller pressing mechanism includes a first calendering roller, a first laminating roller, and a second laminating roller. In a traveling direction of the lithium strip, the first coating mechanism precedes the roller pressing mechanism, and the first coating mechanism is configured to apply a coating layer on a surface of the lithium strip.