公开(公告)号：US20250105472A1

公开(公告)日：2025-03-27

申请号：US18473216

申请日：2023-09-23

Applicant: GM Global Technology Operations LLC

Inventor： Xingcheng Xiao ,  Kyungjae Lee ,  Fang Dai

IPC: H01M50/534 ,  H01M4/04 ,  H01M4/139 ,  H01M4/62 ,  H01M10/0525 ,  H01M50/204

Abstract: A lithium-ion battery includes a plurality of cells. Each cell comprises an anode, a cathode and a separator that is disposed between the anode and cathode. The anode includes an anode active layer that contacts a current collector. The cathode includes a cathode active layer that contacts the current collector. The current collector from each cell contacts a tab that lies outside the cell. An electrically insulating coating is disposed on a portion of the tab or is disposed on an outer edge of each anode or cathode. The anode and cathode are of different lengths.

公开(公告)号：US20240405351A1

公开(公告)日：2024-12-05

申请号：US18328125

申请日：2023-06-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Insun Yoon ,  Kyungjae Lee ,  Nader E. Abedrabbo ,  Meinan He ,  Hanho Yun ,  Fang Dai

IPC: H01M50/333

Abstract: A battery cell includes a cathode element, an anode element, and an electrolyte disposed in contact with each of the cathode and anode elements. The battery cell also includes a battery cell case constructed from a rigid material and defining an internal chamber configured to house each of the cathode element, the anode element, and the electrolyte. The battery cell case defines at least one aperture configured to provide a gas path between the internal chamber and an external environment. The battery cell additionally includes a reversible, multiple-use valve assembly mounted to the battery cell case and configured to selectively open a fluid flow through the at least one aperture to relieve a gas pressure within the internal chamber exceeding a predetermined pressure threshold.

公开(公告)号：US20250096248A1

公开(公告)日：2025-03-20

申请号：US18469744

申请日：2023-09-19

Applicant: GM Global Technology Operations LLC

Inventor： Insun Yoon ,  Kyungjae Lee ,  Yifan Zhao ,  Manuela Ferreira Borras ,  Meinan He ,  Fang Dai

IPC: H01M4/40 ,  H01M4/02 ,  H01M4/04 ,  H01M4/66

Abstract: A battery cell, including an anode, a cathode, and a reference electrode, wherein the reference electrode is interposed between the anode and the cathode; wherein the reference electrode includes an active material layer disposed on a current collector; and wherein the active material layer includes lithium, a lithium aluminum alloy, sodium, a sodium potassium alloy, a sodium calcium alloy, a sodium-lithium-magnesium alloy, a sodium-lithium-aluminum alloy, a sodium lead alloy, a sodium silicon alloy, a sodium antimony alloy, or a sodium zinc alloy.