US 12,237,493 B2
Lithiation device
Yongqiang Xu, Ningde (CN); Xinlu Fei, Ningde (CN); Bin Xie, Ningde (CN); Shitong Chen, Ningde (CN); Keqiang Li, Ningde (CN); Tao Feng, Ningde (CN); and Fenggang Zhao, Ningde (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 Dec. 21, 2022, as Appl. No. 18/086,431.
Application 18/086,431 is a continuation of application No. PCT/CN2022/082840, filed on Mar. 24, 2022.
Claims priority of application No. 202120890273.3 (CN), filed on Apr. 27, 2021.
Prior Publication US 2023/0127246 A1, Apr. 27, 2023
Int. Cl. H01M 4/04 (2006.01); G01B 11/04 (2006.01); H01M 10/0587 (2010.01)
CPC H01M 4/0435 (2013.01) [G01B 11/043 (2013.01); H01M 10/0587 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A lithiation device for applying a lithium film (L) on an electrode plate (P), comprising:
a rolling mechanism, comprising a first roller and a second roller, wherein the first roller and the second roller are configured to roll the electrode plate (P) and the lithium film (L) so as to apply the lithium film (L) on the electrode plate (P);
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 (P) in a direction of traveling after the electrode plate (P) passes through the rolling mechanism and is rolled; 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 (P) after the electrode plate (P) passes through the rolling mechanism approximates to the target length;
wherein the electrode plate (P) is provided with a plurality of spaced mark points (P1) along a traveling direction of the electrode plate (P), the first monitoring mechanism is configured to monitor a distance between two adjacent ones of the plurality of spaced mark points (P1) after the electrode plate (P) passes through the rolling mechanism, and the plurality of spaced mark points (P1) are through holes.