公开(公告)号：US20250062403A1

公开(公告)日：2025-02-20

申请号：US18474545

申请日：2023-09-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Haijing Liu ,  Qili Su

IPC: H01M10/0565 ,  H01M10/0525

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 a lithium salt comprising sulfur and fluorine, a lithium salt comprising boron, a fluorinated plasticizer, a non-fluorinated plasticizer, and a polymeric host. A w/w ratio of the fluorinated plasticizer to the non-fluorinated plasticizer is 9:1 to 1:9.

公开(公告)号：US11967722B2

公开(公告)日：2024-04-23

申请号：US17560673

申请日：2021-12-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili Su ,  Zhe Li ,  Meiyuan Wu ,  Mengyan Hou ,  Haijing Liu

IPC: H01M4/78 ,  H01M4/02

CPC classification number: H01M4/78 ,  H01M2004/029

Abstract: A battery includes positive and negative current collectors and a plurality of bipolar electrodes arranged in a stack between the positive and negative current collectors. The positive and negative current collectors and the stack of the plurality of bipolar electrodes are folded in an S-shape.

公开(公告)号：US20230093233A1

公开(公告)日：2023-03-23

申请号：US17563295

申请日：2021-12-28

Applicant: GM Global Technology Operations LLC

Inventor： Qili Su ,  Dewen Kong ,  Si Chen ,  Haijing Liu ,  Dave G. Rich ,  Lyall K. Winger

IPC: H01M10/42 ,  H02J7/00 ,  H01M10/44

Abstract: A capacitor assisted battery module includes a first diode including an anode and a cathode. A second diode includes an anode and a cathode. The anode of the first diode is connected to the cathode of the second diode at a first node. A first capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, where N is an integer greater than zero. The positive terminal of the first CAB block is connected to the cathode of the first diode. A second capacitor assisted battery (CAB) block includes a positive terminal, a negative terminal and N CABs, wherein the negative terminal of the second CAB block is connected to the anode of the second diode. The negative terminal of the first CAB block and the positive terminal of the second CAB block are connected to a second node.

公开(公告)号：US20210028481A1

公开(公告)日：2021-01-28

申请号：US16523324

申请日：2019-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mengyan Hou ,  Haijing Liu ,  Mark W. Verbrugge ,  Qili Su ,  Meiyuan Wu

IPC: H01M10/04 ,  H01M10/0525 ,  H01M4/36 ,  H01G11/32 ,  H01G11/46

Abstract: A bipolar battery may comprise first, second, and third bipolar electrodes that are physically and electrically isolated from one another by intervening non-liquid electrolyte layers. Each of the bipolar electrodes may comprise a bipolar current collector including a first electroactive material layer connected to a first side thereof and a second electroactive material layer connected to a second side thereof. Each electroactive material layer may comprise at least one of: (i) a lithium ion battery positive electrode material, (ii) a lithium ion battery negative electrode material, and/or (iii) a capacitor electrode material. At least one of the electroactive material layers comprises a capacitor electrode material.

公开(公告)号：US20250062320A1

公开(公告)日：2025-02-20

申请号：US18480632

申请日：2023-10-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yong Lu ,  Zhe Li ,  Qili Su ,  Haijing Liu

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/134 ,  H01M4/136 ,  H01M4/1395 ,  H01M4/1397 ,  H01M4/38 ,  H01M4/525 ,  H01M4/58 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/058

Abstract: A solid state battery cell includes an anode, a cathode, and a solid state electrolyte disposed between the anode and the cathode. The anode is a lithium metal composite anode that comprises a lithium metal layer and a metal sulfide. A method of manufacturing a battery cell includes disposing a lithium metal composite anode on an anode current collector, where the lithium metal composite anode comprises a lithium metal layer and a metal sulfide. A solid state electrolyte is then disposed on the lithium metal composite anode. A cathode active layer is disposed on the solid state electrolyte and a cathode current collector is disposed on the cathode active layer.

公开(公告)号：US20250062081A1

公开(公告)日：2025-02-20

申请号：US18480621

申请日：2023-10-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yong Lu ,  Meiyuan Wu ,  Zhe Li ,  Qili Su ,  Haijing Liu

IPC: H01G11/84 ,  H01M12/00

Abstract: A bipolar solid-state battery cell includes a plurality of battery cells, wherein each cell includes a separator, an anode disposed on a first side of the separator and a cathode disposed on a second side of the separator; where the second side is opposedly disposed to the first side. The anode is in electrical communication with an anode current collector and the cathode is in electrical communication with a cathode current collector. A capacitor wall is disposed parallel to at least one external surface of the anode or cathode, where the capacitor wall includes a capacitor active material.

公开(公告)号：US11973226B2

公开(公告)日：2024-04-30

申请号：US17084782

申请日：2020-10-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mengyan Hou ,  Haijing Liu ,  Qili Su ,  Xiaochao Que

IPC: H01M10/18 ,  H01M4/62 ,  H01M50/531 ,  H01M4/02

CPC classification number: H01M4/62 ,  H01M50/531 ,  H01M2004/029

Abstract: A hybrid electrochemical device including at least two electrically connected solid-state electrochemical cells is provided. Each electrochemical cell includes a first outer electrode having a first current collector and a first electroactive layer, a second outer electrode having a second current collector and a second electroactive layer, and one or more intervening electrodes disposed between the electroactive layers. At least one of the intervening electrodes includes one or more capacitor additives. The first outer electrode is electrically connected to at least one of the intervening electrodes in a first electrical configuration. The second outer electrode is electrically connected to at least one of the intervening electrodes in a second electrical configuration. The at least two electrochemical cells are electrically connected in a third electrical configuration. The first and second electrical configurations are the same and the third electrical configuration is distinct from the first and second electrical configurations.

公开(公告)号：US20230261172A1

公开(公告)日：2023-08-17

申请号：US17851095

申请日：2022-06-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Qili Su ,  Yong Lu ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M4/133 ,  H01M4/36 ,  H01M4/587 ,  H01M10/0562 ,  H01M10/0525

CPC classification number: H01M4/133 ,  H01M4/366 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/021

Abstract: A solid-state battery system including a graphite anode is provided. The system includes a battery cell. The battery cell includes the graphite anode, a cathode, and a solid electrolyte layer. The graphite anode includes a plurality of graphite particles, wherein the plurality of graphite particles includes a first portion of the plurality of graphite particles including a plurality of relatively high specific surface area graphite particles and a second portion of the plurality of graphite particles including a plurality of relatively low specific surface area graphite particles. The solid electrolyte layer is disposed between the graphite anode and the cathode and is operable to provide lithium-ion conduction path between the graphite anode and the cathode.

公开(公告)号：US20250149546A1

公开(公告)日：2025-05-08

申请号：US18654585

申请日：2024-05-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Qili Su ,  Yong Lu ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0562

Abstract: A battery cell includes C cathode electrodes including a cathode active material layer arranged on a cathode current collector, A anode electrodes including an anode active material layer arranged on an anode current collector, and S separators, where A, C and S are integers greater than one. The anode active material layer comprises silicon and a metal that are co-sputtered. The metal is different than the silicon.

公开(公告)号：US20250062327A1

公开(公告)日：2025-02-20

申请号：US18476826

申请日：2023-09-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili Su ,  Zhe Li ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M4/38 ,  H01M4/04 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44

Abstract: Lithium-ion batteries are provided that include a columnar silicon anode including a carbon fiber network on exposed surfaces of the columnar silicon anode. The columnar silicon is formed by plasma vapor deposition. Also disclosed are processes for forming the carbon fiber network, which generally includes spraying a dilute carbon fiber precursor solution including carbon nanotubes, an optional polymeric dispersing agent and a solvent, which is then subjected to facile evaporation at an elevated temperature to remove the solvent and form the carbon fiber network. The carbon fiber network is uniformly and multi-directionally provided on the exposed surfaces of the columnar silicon anode. The presence of the carbon fiber network provides high electronic pathways to enhance battery power capability especially at the higher current rates.