公开(公告)号：US20230411610A1

公开(公告)日：2023-12-21

申请号：US17840928

申请日：2022-06-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yuntao GU ,  Jeffrey David CAIN ,  Sayed Youssef Sayed NAGY ,  Nicholas Paul William PIECZONKA ,  Thomas E. MOYLAN

IPC: H01M4/38 ,  H01M4/36

CPC classification number: H01M4/386 ,  H01M4/366 ,  H01M2004/027

Abstract: The present disclosure provides a method for forming a pre-lithiated layered anode material. The method includes removing cations from a precursor material including a layered ionic compound to form creates a two-dimensional structure that defines a layered anode material. The method further includes inserting lithium ions using an anion insertion wet-chemical process into the layered anode materials to form the pre-lithiated layered anode material. The anion insertion wet-chemical process can be the same as or different form the cation extraction wet-chemical process. In each instance, the precursor material is be represented by MX2, where M is one of calcium (Ca) and magnesium (Mg) and X is one of silicon (Si), germanium (Ge), and boron (B) and the precursor material has alternating layers of M and X.

公开(公告)号：US20230361311A1

公开(公告)日：2023-11-09

申请号：US17737744

申请日：2022-05-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Caleb REESE ,  Andrew Clay BOBEL

IPC: H01M4/66

CPC classification number: H01M4/667 ,  H01M4/661 ,  H01M2004/021

Abstract: The present disclosure provides a lithiophilic-supported current collector for an electrochemical cell that cycles lithium ions. The lithiophilic-supported current collector includes a current collector substrate and a lithiophilic material. The lithiophilic material includes an element selected from the group consisting of: indium, lead, bismuth, gold, and combinations thereof. In certain variations, the lithiophilic material defines a lithiophilic layer disposed on or adjacent to one or more surfaces of the current collector substrate. In other variations, the current collector substrate has one or more porous surfaces and the lithiophilic material coats the one or more porous surfaces.

公开(公告)号：US20250140775A1

公开(公告)日：2025-05-01

申请号：US18494203

申请日：2023-10-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Diptak BHATTACHARYA ,  Caleb REESE ,  Anil K. SACHDEV

IPC: H01M4/04 ,  H01M4/02 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/66 ,  H01M4/74

Abstract: A method for manufacturing a battery cell includes coating a three dimensional current collector (3DCC) with a lithiophilic metal oxide layer; and one of laminating the 3DCC with the lithiophilic metal oxide layer between a first lithium metal layer and a second lithium metal layer to create an anode electrode; and coating the 3DCC with the lithiophilic metal oxide layer with molten lithium to create an anode electrode.

公开(公告)号：US20250087672A1

公开(公告)日：2025-03-13

申请号：US18464854

申请日：2023-09-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Caleb Reese ,  Diptak Bhattacharya ,  Anil K. Sachdev

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/134 ,  H01M4/136 ,  H01M4/38 ,  H01M4/40 ,  H01M4/58 ,  H01M4/66 ,  H01M10/0585

Abstract: A battery cell includes a battery cell stack including A anode electrodes including an anode active material layer arranged adjacent to an anode current collector; C cathode electrodes including a cathode active material layer arranged adjacent to a cathode current collector; and S separators arranged between the A anode electrodes and the C cathode electrodes. The anode active material layer of the A anode electrodes includes a lithium metal layer and a lithium alloy layer comprising an alloy of lithium and a lithiophilic metal.

公开(公告)号：US20250087660A1

公开(公告)日：2025-03-13

申请号：US18462611

申请日：2023-09-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Diptak Bhattacharya ,  Caleb Reese ,  Shaomao Xu ,  Anil K. Sachdev

IPC: H01M4/04 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/66 ,  H01M4/74

Abstract: A method for manufacturing an anode electrode for a battery cell includes providing a current collector; and forming a layer on the current collector to create a coated current collector. The layer includes one of a metal and a metal oxide that is not miscible in molten lithium. The method includes immersing the coated current collector in molten lithium to coat the coated current collector.

公开(公告)号：US20240332480A1

公开(公告)日：2024-10-03

申请号：US18130161

申请日：2023-04-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sayed Youssef Sayed NAGY ,  Caleb Reese ,  Shaomao Xu ,  Diptak Bhattacharya

IPC: H01M4/04

CPC classification number: H01M4/0404 ,  H01M4/0419 ,  H01M4/0426 ,  H01M4/045 ,  H01M4/0471 ,  H01M4/0483

Abstract: A method for fabricating an anode electrode includes providing a stainless steel current collector, forming a metal oxide layer on the stainless steel current collector, and pouring molten lithium over the metal oxide layer of the stainless steel current collector to create a lithium metal layer on the metal oxide layer.