US 12,381,199 B2
Device for supplementing electrode plate with lithium and method for supplementing electrode plate with lithium
Shitong Chen, Fujian (CN); Bin Xie, Fujian (CN); Xinlu Fei, Fujian (CN); Yongqiang Xu, Fujian (CN); Yuzhe Zhang, Fujian (CN); and Lin Ma, Fujian (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Nov. 10, 2021, as Appl. No. 17/523,463.
Application 17/523,463 is a continuation of application No. PCT/CN2020/127372, filed on Nov. 7, 2020.
Claims priority of application No. 201911146508.1 (CN), filed on Nov. 21, 2019.
Prior Publication US 2022/0069275 A1, Mar. 3, 2022
Int. Cl. H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01)
CPC H01M 4/0435 (2013.01) [H01M 4/0404 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device for supplementing an electrode plate with lithium, comprising a first lithium strip unwinding mechanism, an electrode plate unwinding mechanism, a roller pressing mechanism, a first traction mechanism, an electrode plate winding mechanism, at least one first coating mechanism, a lubricating mechanism, and a cleaning mechanism, wherein
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 comprises a first calendering roller, a first laminating roller, and a second laminating roller;
the first traction mechanism is configured to draw the lithium strip into between the first calendering roller and the first laminating roller, and the electrode plate winding mechanism is configured to wind up the electrode plate and draw the electrode plate to pass through between the first laminating roller and the second laminating roller;
in a traveling direction of the lithium strip, the at least one first coating mechanism precedes the roller pressing mechanism and is configured to apply a coating layer on a surface of the lithium strip;
the first traction mechanism comprises a traction roller and a traction belt, one end of the traction belt is connected to the traction roller, and the other end of the traction belt is connected to the lithium strip;
in the traveling direction of the lithium strip, the traction roller is preceded by the first calendering roller; and
the lubricating mechanism is configured to apply a lubricating agent on a roller surface of the first laminating roller,
the cleaning mechanism is configured to clean the roller surface of the first laminating roller and comprises a scraper and a dust suction member, the scraper is in contact with the roller surface of the first laminating roller and configured to scrape off residue lithium scraps and release agent from the roller surface of the first laminating roller, the dust suction member is located on a side of the scraper and configured to suck and remove the scraped lithium scraps and release agent through negative pressure,
wherein the lubricating mechanism comprises a guide member and two coating heads, the two coating heads are spaced apart in an axial direction of the first laminating roller, and the two coating heads are slidably disposed on the guide member in a direction parallel to the axial direction of the first laminating roller.