公开(公告)号：US20230063684A1

公开(公告)日：2023-03-02

申请号：US17458903

申请日：2021-08-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Yong Lu ,  Haijing Liu ,  Qili Su ,  Xiaochao Que ,  Mark W. Verbrugge

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525

Abstract: An anode-free solid-state battery includes a cathode layer having transient anode elements and a bare current collector devoid of non-transitory anode material and configured to accept thereon the transient anode elements. The battery also includes a solid-state electrolyte layer defining voids and arranged between the current collector and the cathode layer. The battery additionally includes a gel situated within the solid-state electrolyte and cathode layers, to permeate the electrolyte voids and form a gelled solid-state electrolyte layer, coat the cathode layer, and facilitate ionic conduction of the anode elements between the cathode layer, the solid-state electrolyte layer, and the current collector. Charging the battery diffuses the anode elements from the cathode layer, via the gelled solid-state electrolyte layer, onto the current collector. Discharging the battery returns the anode elements, via the gelled solid-state electrolyte layer, to the cathode layer. A particular method is used to fabricate the anode-free solid-state battery.

公开(公告)号：US11145922B2

公开(公告)日：2021-10-12

申请号：US16684070

申请日：2019-11-14

Applicant: GM Global Technology Operations LLC

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

IPC: H01M4/02 ,  H01M16/00 ,  H01M10/0525 ,  H01M10/0566 ,  H01G11/08 ,  H01G11/10 ,  H01G11/56 ,  H01G11/50 ,  H01G11/06 ,  H01G11/46 ,  H01G11/36

Abstract: A solid-state battery cell having a capacitor interlayer is disclosed. The solid-state battery includes an anode, a cathode spaced from the anode, a solid-state electrolyte layer disposed between the anode and the cathode, and a capacitor assisted interlayer sandwiched between at least one of (i) the anode and solid-state electrolyte layer, and (ii) the cathode and the solid-state electrolyte layer. The capacitor assisted interlayer comprise at least one of a polymer-based material, an inorganic material, and a polymer-inorganic hybrid material; and a capacitor anode active material or a capacitor cathode active material. The polymer-based material includes at least one of a poly(ethylene glycol) methylether acrylate with Al2O3 and LiTFSI, a polyethylene oxide (PEO) with LiTFSI, and a poly(vinylidene fluoride) copolymer with hexafluoropropylene (PVDF-HFP)-based gel electrolyte. The inorganic material includes a 70% Li2S-29% P2S5-1% P2O5. The polymer-inorganic hybrid material includes a mixture of PEO, LiTFSI, and 75% Li2S-24% P2S5-1% P2O5 (LPOS).

公开(公告)号：US11121375B2

公开(公告)日：2021-09-14

申请号：US16159799

申请日：2018-10-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mengyan Hou ,  Zhe Li ,  Dewen Kong ,  Haijing Liu ,  Qili Su

IPC: H01M4/62 ,  H01M4/485 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/587 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/40

Abstract: Individual electrodes for a solid-state lithium-ion battery cell may be formed, for example, by elevated temperature consolidation in air of a mixture of resin-bonded, electrode active material particles, oxide solid electrolyte particles, and particles of a non-carbon electronic conductive additive. Depending on the selected compositions of the electrode materials and the solid electrolyte, one or both of the cathode and anode layer members may be formed to include the non-carbon electronic conductive additive. The battery cell is assembled with the solid-state electrodes placed on opposite sides of a consolidated layer of oxide electrolyte particles. The electronic conductivity of at least one of the cathode and anode is increased by the incorporation of particles of a selected non-carbon electronic conducive additive with the respective electrode particles.

公开(公告)号：US20210036310A1

公开(公告)日：2021-02-04

申请号：US16598237

申请日：2019-10-10

Applicant: GM Global Technology Operations LLC

Inventor： Mengyan Hou ,  Zhe Li ,  Qili Su ,  Xiaochao Que ,  Meiyuan Wu

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

Abstract: An electrode including micro-sized secondary particle (MSSP) with enhanced ionic conductivity for solid-state battery is provided. The MSSP comprises a cathode particle and a solid-state electrolyte. The cathode particle is at least partially coated by solid-state electrolyte. The lithium ion transport inside the micro-sized secondary particles is increased by the incorporation of solid-state electrolyte. The electrode can be prepared by casting the slurry comprising MSSP, another electrolyte, binders, and conductive additives on the current collector. The current collector is comprised of a conductive material. The current collector has a first side and a second side. The electrode active material layer is disposed on one of the first and second sides of the current collector.

公开(公告)号：US20250149630A1

公开(公告)日：2025-05-08

申请号：US18914838

申请日：2024-10-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: H01M10/0565 ,  H01M4/02 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/411

Abstract: A battery cell includes A anode electrodes, C cathode electrodes, and S separators arranged between the A anode electrodes and the C cathode electrodes, where A, C, and S are integers greater than one. The S separators include a composite gel membrane that is cured in-situ using ultraviolet light and includes a polymer, a solid electrolyte comprising greater than 20 wt % of the composite gel membrane, an initiator, and a liquid electrolyte.

公开(公告)号：US20250062395A1

公开(公告)日：2025-02-20

申请号：US18474540

申请日：2023-09-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili Su ,  Zhe Li ,  Haijing Liu ,  Yong Lu ,  Xiayin Yao ,  Dingcheng Guo

IPC: H01M10/0562 ,  H01M4/38 ,  H01M4/62

Abstract: An electrolyte for use in an electrochemical cell. The electrolyte includes a first layer having a thickness of about 1 μm to about 40 μm and a second layer having a thickness of about 5 μm to about 60 μm. The first layer includes, based on a total weight of the first layer, about 10 wt. % to about 40 wt. % of first solid-state electrolyte particles, about 1 wt. % to about 15 wt. % of lithium, and about 1 wt. % to about 65 wt. % of fibrils including carbon and fluorine, The second layer includes second solid-state electrolyte particles.

公开(公告)号：US20240219330A1

公开(公告)日：2024-07-04

申请号：US18134645

申请日：2023-04-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Wang ,  Jingyuan Liu ,  Mengyuan Chen ,  Michelle H. Wiebenga ,  Bradley R. Frieberg ,  Qili Su ,  Meiyuan Wu

IPC: G01N25/20

CPC classification number: G01N25/20

Abstract: A method for testing a sample of a battery cell includes arranging the sample of the battery cell in a sample pan of a test crucible; arranging a spacer on the sample of the battery cell; sealing the sample pan; and performing differential scanning calorimetry (DSC) testing of the sample.

公开(公告)号：US20240154097A1

公开(公告)日：2024-05-09

申请号：US18128625

申请日：2023-03-30

Applicant: GM Global Technology Operations LLC

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

IPC: H01M4/36 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/48 ,  H01M4/485 ,  H01M4/58 ,  H01M4/587 ,  H01M4/62

CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/133 ,  H01M4/136 ,  H01M4/48 ,  H01M4/485 ,  H01M4/5815 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625 ,  H01M2004/027

Abstract: An anode electrode includes a current collector and a first anode layer arranged on the current collector and comprising first anode active material. A first pre-lithiation layer is arranged on the first anode layer. A second anode layer arranged on the first pre-lithiation layer and comprising second anode active material.

公开(公告)号：US11824159B2

公开(公告)日：2023-11-21

申请号：US17458903

申请日：2021-08-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Yong Lu ,  Haijing Liu ,  Qili Su ,  Xiaochao Que ,  Mark W. Verbrugge

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/02

CPC classification number: H01M10/0565 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

Abstract: An anode-free solid-state battery includes a cathode layer having transient anode elements and a bare current collector devoid of non-transitory anode material and configured to accept thereon the transient anode elements. The battery also includes a solid-state electrolyte layer defining voids and arranged between the current collector and the cathode layer. The battery additionally includes a gel situated within the solid-state electrolyte and cathode layers, to permeate the electrolyte voids and form a gelled solid-state electrolyte layer, coat the cathode layer, and facilitate ionic conduction of the anode elements between the cathode layer, the solid-state electrolyte layer, and the current collector. Charging the battery diffuses the anode elements from the cathode layer, via the gelled solid-state electrolyte layer, onto the current collector. Discharging the battery returns the anode elements, via the gelled solid-state electrolyte layer, to the cathode layer. A particular method is used to fabricate the anode-free solid-state battery.

公开(公告)号：US11575120B2

公开(公告)日：2023-02-07

申请号：US16598237

申请日：2019-10-10

Applicant: GM Global Technology Operations LLC

Inventor： Mengyan Hou ,  Zhe Li ,  Qili Su ,  Xiaochao Que ,  Meiyuan Wu

IPC: H01M4/36 ,  H01M10/0525 ,  H01M10/0562 ,  H01M4/02

Abstract: An electrode including micro-sized secondary particle (MSSP) with enhanced ionic conductivity for solid-state battery is provided. The MSSP comprises a cathode particle and a solid-state electrolyte. The cathode particle is at least partially coated by solid-state electrolyte. The lithium ion transport inside the micro-sized secondary particles is increased by the incorporation of solid-state electrolyte. The electrode can be prepared by casting the slurry comprising MSSP, another electrolyte, binders, and conductive additives on the current collector. The current collector is comprised of a conductive material. The current collector has a first side and a second side. The electrode active material layer is disposed on one of the first and second sides of the current collector.