公开(公告)号：US20240413295A1

公开(公告)日：2024-12-12

申请号：US18330724

申请日：2023-06-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Andrew Clay BOBEL ,  Diptak BHATTACHARYA ,  Zhenke TENG ,  Caleb REESE ,  Sayed Yousef Sayed NAGY ,  Anil K. SACHDEV

IPC: H01M4/04 ,  H01M4/66 ,  H01M4/75

Abstract: A method for manufacturing a current collector for an electrode of a battery cell includes providing a wire mesh current collector including wires that have a diameter and form mesh junctions; and rolling the wire mesh current collector using a first roller and a second roller, wherein the first roller and the second roller are spaced by a predetermined gap. The predetermined gap is less than 2 times the diameter of the wires of the wire mesh current collector.

公开(公告)号：US20240027421A1

公开(公告)日：2024-01-25

申请号：US17872222

申请日：2022-07-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hassan GHASSEMI-ARMAKI ,  Blair E. CARLSON ,  Zhenke TENG ,  Jason M. BROWN

IPC: G01N33/207 ,  G01N27/90 ,  G01N23/223 ,  G01N33/208 ,  G06V10/74 ,  G06T7/00

CPC classification number: G01N33/207 ,  G01N27/90 ,  G01N23/223 ,  G01N33/208 ,  G06V10/74 ,  G06T7/001 ,  G06T2207/10116 ,  G06T2207/10064 ,  G06T2207/30136

Abstract: A method for inspecting a component made of press-hardening steel prior to resistance spot welding of the component includes performing non-destructive testing of the component made of press-hardening steel after hot stamping to determine a plurality of characteristics for the component. The non-destructive testing comprises at least one of image processing, electromagnetic analysis, and elemental analysis of the component. The method includes using a model correlating values of the characteristics to acceptable weld quality or rejected weld quality and predicting acceptable weld quality or rejected weld quality of the component prior to resistance spot welding of the component; resistance spot welding the component if the model predicts acceptable weld quality; and not resistance spot welding the component if the model predicts rejected weld quality.