公开(公告)号：US20210408518A1

公开(公告)日：2021-12-30

申请号：US16910456

申请日：2020-06-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Meixian Wang ,  Raghunathan K ,  MI Jimenez ,  Ion C. Halalay

IPC: H01M4/131 ,  H01M4/505 ,  H01M10/0525

Abstract: A lithium metal oxide (LMO) cathode includes a current collector having a length defining a first end and a second end, a width, and a first side and a second side, LMO active material applied to the first side and the second side of the current collector such that the LMO active material applied to each respective side of the current collector has an inner face contiguous with the current collector and an outer face, and a plurality of channels extending widthwise across the cathode within the LMO active material applied to the first and second sides. The LMO active material on each current collector side can have a thickness of about 100 ∪m to about 400 μm. The channels on the same side of the current collector can be spaced apart by 0.1 mm to 10 mm. The channels can have widths of 10 μm to 60 μm.