US 11,841,328 B2
Method and device for testing electrode sheet
Guoda Huang, Fujian (CN); Weizhi Zhou, Fujian (CN); Yuanfu Chen, Fujian (CN); Qingqing Song, Fujian (CN); Kai Cui, Fujian (CN); Minjiang Xu, Fujian (CN); Yiruo Wang, Fujian (CN); and Gang Lin, Fujian (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Fujian (CN)
Filed on Apr. 18, 2023, as Appl. No. 18/135,743.
Application 18/135,743 is a continuation of application No. PCT/CN2022/076799, filed on Feb. 18, 2022.
Prior Publication US 2023/0266254 A1, Aug. 24, 2023
Int. Cl. G01B 11/04 (2006.01); G01N 21/892 (2006.01)
CPC G01N 21/892 (2013.01) [G01B 11/043 (2013.01); G01N 2201/126 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for testing an electrode sheet, wherein the method comprises:
acquiring M pieces of test data of a tab, wherein the tab protrudes from an end face of an electrode sheet along a first direction, the M pieces of test data are the test data of a height of the tab in the first direction at M consecutive positions along a second direction, the second direction is perpendicular to the first direction, and M is a positive integer greater than 1; and
determining whether a shape of the tab is normal based on a change of the height of the tab at the M consecutive positions according to the M pieces of test data.