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：US20250105445A1

公开(公告)日：2025-03-27

申请号：US18471346

申请日：2023-09-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng Xiao ,  Mei Cai

IPC: H01M50/446 ,  H01M10/0525 ,  H01M50/403 ,  H01M50/434

Abstract: A prelithiated separator for use in an electrochemical cell. The prelithiated separator includes a base film including a polymer having a melting point greater than 180° C.; a ceramic directly contacting the base film; and lithium on an outer surface of the prelithiated separator.

公开(公告)号：US20250079660A1

公开(公告)日：2025-03-06

申请号：US18461792

申请日：2023-09-06

Applicant: GM Global Technology Operations LLC

Inventor： Jing Gao ,  Anne Zhang ,  Brian J. Koch ,  Xingcheng Xiao ,  Zhe Li

IPC: H01M50/569 ,  B60L50/64 ,  G01K1/02 ,  G01K3/02 ,  H01M10/48

Abstract: A battery includes multiple stacked cells. Each cell includes an anode layer and a cathode layer separated by a permeable separator. At least one temperature probe structure is disposed on the permeable separator between the anode layer and the cathode layer of a first cell of the stacked cells. The temperature probe structure includes at least a first material partially coating the permeable separator and a second material partially coating the permeable separator. The first material overlaps with the second material at an overlap region. A first sensor output terminal is connected to the first material and a second sensor terminal is connected to the second material. A voltage differential between the first sensor output terminal and the second sensor output terminal corresponds to an average temperature of the overlap region.

公开(公告)号：US20250046895A1

公开(公告)日：2025-02-06

申请号：US18363115

申请日：2023-08-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng Xiao ,  William Reginald Collin

IPC: H01M10/52 ,  H01M50/403

Abstract: A battery cell having an anode and a cathode with a catalyzed separator interposed therebetween, and sealed within a cell case is described. The catalyzed separator is a substrate having a catalyzed coating arranged thereon. The catalyzed coating includes a bimetallic catalyst arranged on a support material. The bimetallic catalyst includes rhodium or ruthenium and a second transition metal. Lithium in zeolite functions as a catalyst promoter to accelerate a hydroformylation reaction.

公开(公告)号：US12182990B2

公开(公告)日：2024-12-31

申请号：US17743862

申请日：2022-05-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Wei Zeng ,  Scott E. Parrish ,  Jing Gao ,  Brian J. Koch ,  Xingcheng Xiao

IPC: G06T7/00 ,  G06T7/32 ,  G06T7/33 ,  G06V10/58 ,  H01M10/42

Abstract: A system for inspecting a battery component includes a heating device configured to heat a surface of the battery component to a selected temperature, an optical-visible imaging device configured to take an optical image of the surface, a thermal imaging device configured to take a thermal image of the surface, and a processor configured to acquire the optical image and the thermal image. The processor is configured to correlate the thermal image with the optical image, identify a feature of interest in at least one of the optical image and the thermal image, determine a geometric characteristic and a temperature characteristic associated with the feature of interest, and determine whether the feature of interest is a defect based on the geometric characteristic and the temperature characteristic.

公开(公告)号：US20240413386A1

公开(公告)日：2024-12-12

申请号：US18330649

申请日：2023-06-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng Xiao ,  Robert D. Schmidt ,  Yifan Zhao

IPC: H01M10/0562

Abstract: A method to create a garnet-based solid electrolyte separator for a battery cell is provided. The method includes coating a garnet-based material powder, initially including a lithium carbonate layer upon an outer surface of the garnet-based material powder, with aluminum fluoride to create a fluoride-treated garnet-based material powder. The method further includes operating a solid-state reaction upon the fluoride-treated garnet-based material powder, such that the aluminum fluoride reacts with the lithium carbonate layer to create aluminum oxide, carbon dioxide, and lithium fluoride. The solid-state reaction creates a fluoride-treated and solid-state reacted garnet-based material powder including the aluminum oxide and the lithium fluoride. The method further includes sintering the fluoride-treated and solid-state reacted garnet-based material powder including the aluminum oxide and the lithium fluoride. The sintering includes applying pressure upon the fluoride-treated and solid-state reacted garnet-based material powder to densify the powder and create the separator.

公开(公告)号：US20240405261A1

公开(公告)日：2024-12-05

申请号：US18327464

申请日：2023-06-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  The University of Kentucky

Inventor： Xingcheng Xiao ,  Thomas A. Yersak ,  Yang-Tse Cheng

IPC: H01M10/0562 ,  H01M4/04 ,  H01M50/538

Abstract: An electrode stack for a solid-state battery is provided. The electrode stack includes a cathode. The cathode includes a cathode current collector and a first layer of material applied to the cathode current collector. The first layer of material includes a cathode active material, a first ionomer configured as a first binder, and a conductive material. The electrode stack further includes a solid electrolyte separator layer, including a second ionomer configured as a second binder. The electrode stack further includes an anode including a layer including lithium metal, silicon, or graphite and an anode current collector. One of the first ionomer and the second ionomer includes a shape-memory ionomer configured for selectively restoring the electrode stack to an original shape.

公开(公告)号：US20240243436A1

公开(公告)日：2024-07-18

申请号：US18098392

申请日：2023-01-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Xingcheng Xiao ,  Jing Gao

IPC: H01M50/457 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/42 ,  H01M50/403 ,  H01M50/426 ,  H01M50/431 ,  H01M50/446 ,  H01M50/451 ,  H01M50/491 ,  H10N30/20 ,  H10N30/85

CPC classification number: H01M50/457 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/4235 ,  H01M50/403 ,  H01M50/426 ,  H01M50/431 ,  H01M50/446 ,  H01M50/451 ,  H01M50/491 ,  H10N30/206 ,  H10N30/852 ,  H01M2220/20 ,  H01M2300/0068

Abstract: A self-protecting functional separator for a battery cell is provided. The self-protecting functional separator includes a polymer substrate including a first primary surface and a second primary surface. The self-protecting functional separator further includes a functional layer applied to the first primary surface. The functional layer including a mixture includes a first piezoelectric material including a single crystal-type material and a second piezoelectric material.

公开(公告)号：US12040494B2

公开(公告)日：2024-07-16

申请号：US17205574

申请日：2021-03-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingyi Yang ,  Xingcheng Xiao ,  Joel G. Toner

IPC: H01M4/66 ,  H01M4/02 ,  H01M4/04 ,  H01M4/139 ,  H01M4/38 ,  H01M10/052 ,  H01M10/058 ,  H01M10/44

CPC classification number: H01M4/661 ,  H01M4/0438 ,  H01M4/139 ,  H01M4/386 ,  H01M10/052 ,  H01M10/058 ,  H01M10/446 ,  H01M2004/021

Abstract: A negative electrode for a secondary lithium battery is provided herein, as well as a method for assembling a secondary lithium battery including the negative electrode. The negative electrode includes a current collector having a first side and an opposite second side. A first negative electrode layer is disposed on the first side of the current collector and a second negative electrode layer is disposed on the second side of the current collector. A lithium metal layer is disposed (i) between the first and second negative electrode layers or (ii) on a major facing surface of the first or second negative electrode layer. An electrolyte infiltrates the first and second negative electrode layers and is in contact with the lithium metal layer. The electrolyte establishes a lithium ion transport path between the lithium metal layer and at least one of the first or second negative electrode layers.

公开(公告)号：US11955639B2

公开(公告)日：2024-04-09

申请号：US17307664

申请日：2021-05-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mengyuan Chen ,  Xingcheng Xiao

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/134 ,  H01M10/0562

CPC classification number: H01M4/62 ,  H01M4/134 ,  H01M10/0562 ,  H01M2004/027 ,  H01M2220/20 ,  H01M2300/0068

Abstract: A solid-state electrochemical cell that cycles lithium ions includes a solid-state electrolyte that defines a first major surface and an electrode that defines a second major surface. The solid-state electrochemical cell also includes an interfacial layer disposed between the first major surface of the solid-state electrolyte and the second major surface of the electrode. The interfacial layer may include an ion-conductor disposed in an organic matrix.