公开(公告)号：US20240038998A1

公开(公告)日：2024-02-01

申请号：US17888613

申请日：2022-08-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Dave G. RICH ,  Meiyuan WU ,  Jingyuan LIU ,  Haijing LIU

IPC: H01M4/66 ,  H01M10/0585

CPC classification number: H01M4/667 ,  H01M4/661 ,  H01M4/668 ,  H01M4/663 ,  H01M10/0585 ,  H01M2004/021

Abstract: A battery cell includes a plurality of cathodes and a plurality of anodes. A plurality of solid electrolyte layers are arranged between first adjacent ones of the plurality of cathodes and the plurality of anodes. A plurality of clad current collectors are arranged between second adjacent ones of the plurality of cathodes and the plurality of anodes. The plurality of clad current collector includes a first foil layer, a second foil layer and a thermal interface layer including adhesive and at least one material that increases thermal and electrical conductivity of the thermal interface layer.

公开(公告)号：US20230402585A1

公开(公告)日：2023-12-14

申请号：US17879210

申请日：2022-08-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yong LU ,  Zhe LI ,  Meiyuan WU ,  Haijing LIU

IPC: H01M4/36 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M10/0525 ,  H01M2004/027

Abstract: A hybridized lithium-ion battery that includes one or more positive electrode assemblies is provided. Each of the one or more positive electrode assemblies includes a positive electrode current collector and one or more positive electroactive material layers disposed on one or more surfaces of the positive electrode current collector. The hybridized lithium-ion battery also includes two or more negative electrode current collectors, and one or more negative electroactive material layers disposed on one or more surfaces of at least one of the two or more negative electrode current collectors, where a total number of the one or more positive electroactive material layers is greater than a total number of negative electroactive material layers. The hybridized lithium-ion battery also includes two or more separating layers physically separating the positive electrode assemblies and the negative electroactive material layers or the positive electrode assemblies and the negative electrode current collectors.

公开(公告)号：US20230378610A1

公开(公告)日：2023-11-23

申请号：US17869657

申请日：2022-07-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Meiyuan WU ,  Yong LU ,  Haijing LIU

IPC: H01M50/46 ,  H01M4/04 ,  H01M10/0525 ,  H01M50/409 ,  H01M10/0565

CPC classification number: H01M50/46 ,  H01M4/0404 ,  H01M10/0525 ,  H01M50/409 ,  H01M10/0565 ,  H01M2300/0082

Abstract: A polymer blocker for use in an electrochemical battery that cycles lithium ions is provided. The polymer blocker includes a polymeric layer, a first adhesive layer that includes a first adhesive and is disposed on or near a first surface of the polymeric layer, and a second adhesive layer that includes a second adhesive and is disposed on or near a second surface of the polymeric layer. The polymeric layer has a porosity greater than or equal to about 50 vol. % to less than or equal to about 95 vol. %. A portion of the first adhesive impregnates a first portion of the polymeric layer, and a portion of the second adhesive impregnating a second portion of the polymeric layer. The first and second portions of the polymeric layer may be the same or different.

公开(公告)号：US20230344000A1

公开(公告)日：2023-10-26

申请号：US17884410

申请日：2022-08-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yong LU ,  Zhe LI ,  Meiyuan WU ,  Haijing LIU

IPC: C08K3/22 ,  C08G59/50 ,  C08K3/36 ,  H01M10/0525 ,  H01M10/28 ,  H01M10/0565

CPC classification number: H01M10/0565 ,  C08G59/50 ,  C08K3/22 ,  C08K3/36 ,  H01M10/0525 ,  H01M10/282 ,  C08K2003/2227 ,  C08K2003/2241 ,  C08K2003/2244 ,  H01M2300/0028 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: Methods of forming a battery via in situ polymerization are provided. A precursor of a first blocker composition is applied to select edge regions of at least one bipolar electrode and terminal negative and positive electrodes. The components are assembled to form a stack with at least two insulating interlayers disposed between electrodes of opposite polarities. The precursor is reacted to form a first blocker composition sealing three sides of the stack to define a fillable interior region. Next, a polymer electrolyte precursor is injected into the fillable interior region. A precursor of a second blocker composition is applied to a terminal region of the fourth side of the stack. The precursors are concurrently reacted to form a polymer electrolyte and a second blocker composition along the fourth side. The first and second blocker compositions define a sealed pouch including the stack comprising the polymer electrolyte.

公开(公告)号：US20230317966A1

公开(公告)日：2023-10-05

申请号：US17853690

申请日：2022-06-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Qi LU ,  Yong LU ,  Meiyuan WU ,  Qili SU ,  Haijing LIU

IPC: H01M4/76 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/44 ,  H01M4/62 ,  H01M4/134

CPC classification number: H01M4/762 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/027 ,  H01M4/626 ,  H01M4/625 ,  H01M4/134 ,  H01M10/44

Abstract: An electrochemical cell that cycles lithium ions includes a positive electrode, a negative electrode current collector spaced apart from the positive electrode, and an ionically conductive electrolyte disposed between the positive electrode and the negative electrode current collector. The negative electrode current collector is of unitary one-piece construction and has a three-dimensional porous structure that defines an interconnected network of open pores. During charging of the electrochemical cell, lithium metal is deposited within the open pores of the negative electrode current collector.

公开(公告)号：US20230253617A1

公开(公告)日：2023-08-10

申请号：US17884239

申请日：2022-08-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Qili SU ,  Meiyuan WU ,  Haijing LIU

IPC: H01M10/0565 ,  H01M4/505 ,  H01M4/583

CPC classification number: H01M10/0565 ,  H01M4/505 ,  H01M4/583 ,  H01M2300/0085 ,  H01M2300/0082 ,  H01M2300/0028

Abstract: A polymeric gel electrolyte for an electrochemical cell, such as a solid-state battery, is provided herein as well an electrochemical cell including the polymeric gel electrolyte. The polymeric gel electrolyte includes one or more lithium salts, a plasticizer component, an additive component, and a polymeric host. Examples of the plasticizer component include a carbonate, a lactone, a nitrile, a sulfone, an ether, a phosphate, and combinations thereof. The additive component includes a boron-containing additive and a carbonate-containing additive.

公开(公告)号：US20230246172A1

公开(公告)日：2023-08-03

申请号：US17746575

申请日：2022-05-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Qili SU ,  Yong LU ,  Meiyuan WU ,  Haijing LIU

IPC: H01M4/36 ,  H01M4/62 ,  H01M10/0565 ,  H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/62 ,  H01M10/0565 ,  H01M4/5815 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive electrode including an active layer is provided, where the active layer includes a plurality of positive electroactive solid-state particles, a lithium-source material coated on or dispersed with the positive electroactive solid-state particles in the active layer, and a polymeric gel electrolyte at least partially filling voids between the positive electroactive solid-state particles in the active layer. The lithium-source material having a theoretical specific capacity greater than or equal to about 100 mAh/g to less than or equal to about 3,000 mAh/g.

公开(公告)号：US20230046608A1

公开(公告)日：2023-02-16

申请号：US17710900

申请日：2022-03-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili SU ,  Zhe LI ,  Mengyan HOU ,  Yong LU ,  Haijing LIU

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M4/62

Abstract: An electrochemical cell that cycles lithium ions is provided. The electrochemical cell includes a first electrode, a second electrode, and an electrolyte layer disposed between the first electrode and the second electrode. The first electrode includes a first plurality of solid-state electroactive material particles and a first polymeric gel electrolyte, where the first polymeric gel electrolyte includes a first additive. The second electrode includes a second plurality of solid-state electroactive material particles and a second polymeric gel electrolyte that is different from the first polymeric gel electrolyte, where the second polymeric gel electrolyte includes a second additive. The electrolyte layers include a third polymeric gel electrolyte that is different from both the first polymeric gel electrolyte and the second polymeric gel electrolyte.

公开(公告)号：US20220407079A1

公开(公告)日：2022-12-22

申请号：US17698865

申请日：2022-03-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qi LU ,  Zhe LI

IPC: H01M4/66 ,  H01M4/04

Abstract: The present disclosure provides a method for forming a bipolar current collector. The method may include heating a first current collector material having a first melting point to form a molten metal or metal alloy and disposing the molten metal or metal alloy on one or more surfaces of a second current collector material having a second melting point greater than the first melting point to form the bipolar current collector. The molten metal or metal alloy may be disposed on the one or more surfaces of the second current collector material using a twin-roll casting method or a spraying method. The bipolar current collector may include a first current collector including the first current collector material, a second current collector including the second current collector material, and an inter-diffusion layer that connects the first current collector and the second current collector.

公开(公告)号：US20220166031A1

公开(公告)日：2022-05-26

申请号：US17522331

申请日：2021-11-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Xiaochao QUE ,  Haijing LIU ,  Yong LU ,  Meiyuan WU ,  Thomas A. YERSAK ,  Mei CAI

IPC: H01M4/80

Abstract: The present disclosure provides a solid-state bipolar battery that includes negative and positive electrodes having thicknesses between about 100 μm and about 3000 μm, and a solid-state electrolyte layer disposed between the negative electrode and the positive electrode and having a thickness between about 5 μm and about 100 μm. The first electrode includes a plurality of negative solid-state electroactive particles embedded on or disposed within a first porous material. The second electrode includes plurality of positive solid-state electroactive particles embedded on or disposed within a second porous material that is the same or different from the first porous material. The solid-state bipolar battery includes a first current collector foil disposed on the first porous material, and a second current collector foil disposed on the second porous material. The first and second current collector foils may each have a thickness less than or equal to about 10 μm.