公开(公告)号：US20250158222A1

公开(公告)日：2025-05-15

申请号：US18508844

申请日：2023-11-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Nathaniel HARDIN ,  Fang Dai ,  Xingcheng Xiao ,  YIfan Zhao

IPC: H01M50/417 ,  C08J3/28 ,  C08J5/18 ,  H01M10/0525 ,  H01M10/0585 ,  H01M50/403 ,  H01M50/434 ,  H01M50/446 ,  H01M50/449 ,  H01M50/489

Abstract: A battery that cycles lithium ions includes a negative electrode, a positive electrode, and a separator sandwiched between opposed major facing surfaces of the negative and positive electrodes. The separator has an open microporous structure and includes a polyolefin having a crosslinked structure. When the separator is heated at a temperature of greater than or equal to about 145 degrees Celsius for about 1 hour, the separator has thermal shrinkage in directions parallel to the opposed major facing surfaces of the negative and positive electrodes of less than or equal to about 5%. The separator may be manufactured from a precursor film having an open microporous structure and comprising linear or branched chain polyolefin molecules. The precursor film may be exposed to a source of free radicals such that covalent bonds form between the polyolefin molecules and form a crosslinked polyolefin having a relatively high molecular weight.

公开(公告)号：US20250105341A1

公开(公告)日：2025-03-27

申请号：US18471362

申请日：2023-09-21

Applicant: GM Global Technology Operations LLC

Inventor： Xingcheng Xiao ,  Fang Dai ,  Mei Cai

IPC: H01M10/054 ,  H01M4/02 ,  H01M4/04 ,  H01M4/38 ,  H01M50/403 ,  H01M50/491

Abstract: A sodium ion battery includes an anode, a cathode, a separator and an electrolyte. The anode includes an anode active layer, the cathode includes a cathode active layer and the separator includes a porous film. At least one of the anode active layer, the cathode active layer or the separator have an anode zeolite layer, a cathode zeolite layer or a separator zeolite layer respectively disposed thereon.

公开(公告)号：US20250105329A1

公开(公告)日：2025-03-27

申请号：US18472692

申请日：2023-09-22

Applicant: GM Global Technology Operations LLC

Inventor： Wai Ping Gloria Tam ,  David F. Titmuss ,  Aiden Kwak ,  Alex Carr ,  Fang Dai

IPC: H01M10/04 ,  H01M10/0583

Abstract: A battery stack includes an electrically insulative material formed into a series of folds, the series of folds creating a plurality of foil support surfaces. A battery foil is disposed between adjacent ones of the series of folds. An amount of ultra violet (UV) activated adhesive disposed between the adjacent one of the plurality of foil support surfaces. The amount of UV activated adhesive bonding the adjacent ones of the plurality of foil support surfaces one to another to form a consolidated battery stack.

公开(公告)号：US12113163B2

公开(公告)日：2024-10-08

申请号：US17506446

申请日：2021-10-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ruchira Dharmasena ,  Shuru Chen ,  Fang Dai ,  Mei Cai ,  Sanaz Ketabi

IPC: H01M10/04 ,  H01M10/0525 ,  H01M50/431 ,  H01M50/446

CPC classification number: H01M10/0404 ,  H01M10/0525 ,  H01M50/431 ,  H01M50/446

Abstract: A system for coating a separator for a battery includes a separator feed and collection assembly configured to dispense the separator, a coating distribution device configured to flow a coating material toward the separator, and an electric field generator configured to generate an electric field in a gap between the coating distribution device and the separator.

公开(公告)号：US11984599B2

公开(公告)日：2024-05-14

申请号：US16698303

申请日：2019-11-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Fang Dai ,  Hongliang Wang ,  Shuru Chen ,  Qinglin Zhang ,  Mei Cai

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/66 ,  H01M10/0525

CPC classification number: H01M4/62 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/0492 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/382 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/027

Abstract: An electrode component for an electrochemical cell is provided herein. The electrode component includes a current collector having a first surface, a metal oxide layer disposed on the first surface of the current collector, and a lithium-containing layer bonded to the first surface of the current collector. The metal oxide layer includes a plurality of features. A method for manufacturing such an electrode component is also provided herein. The method includes directing a laser beam toward the first surface of the current collector in the presence of oxygen to form the metal oxide layer on the first surface and applying the lithium-containing layer to the metal oxide layer thereby bonding the lithium-containing layer with the current collector.

公开(公告)号：US11660838B2

公开(公告)日：2023-05-30

申请号：US16725807

申请日：2019-12-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Fang Dai ,  Mei Cai ,  Fan Xu ,  Tao Wang

IPC: H01M10/658 ,  B32B7/12 ,  B32B15/14 ,  B32B5/02 ,  B32B19/04 ,  C08G77/04 ,  B32B27/12 ,  H01M50/24 ,  H01G11/78 ,  C08L83/04 ,  H01G11/18 ,  C08G77/20 ,  C08J3/24

CPC classification number: B32B7/12 ,  B32B5/024 ,  B32B15/14 ,  B32B19/041 ,  B32B27/12 ,  C08G77/04 ,  C08L83/04 ,  H01G11/18 ,  H01G11/78 ,  H01M10/658 ,  H01M50/24 ,  C08G77/20 ,  C08J3/24 ,  Y02E60/10

Abstract: A thermal insulation component according to various aspects of the present disclosure includes a matrix, a crosslinking precursor, and a crosslinking initiator. The matrix includes a thermal insulation material having a thermal conductivity of less than or equal to about 5 W/mK. The crosslinking precursor is embedded in the matrix. The crosslinking precursor includes at least one of an acrylate functional group or a methacrylate functional group. The crosslinking initiator is embedded in the matrix. The crosslinking initiator is configured to decompose to initiate crosslinking of the crosslinking precursor. In certain aspects, the present disclosure also provides an electronics assembly including an electronic component and a thermal insulation material in thermal communication with the electronic component. In certain aspects, the present disclosure also provides methods of manufacturing the thermal insulation component.

公开(公告)号：US20230121883A1

公开(公告)日：2023-04-20

申请号：US17506446

申请日：2021-10-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ruchira DHARMASENA ,  Shuru Chen ,  Fang Dai ,  Mei Cai ,  Sanaz Ketabi

IPC: H01M10/04 ,  H01M50/446 ,  H01M50/431 ,  H01M10/0525

Abstract: A system for coating a separator for a battery includes a separator feed and collection assembly configured to dispense the separator, a coating distribution device configured to flow a coating material toward the separator, and an electric field generator configured to generate an electric field in a gap between the coating distribution device and the separator.

公开(公告)号：US11183714B2

公开(公告)日：2021-11-23

申请号：US15710326

申请日：2017-09-20

Applicant: GM Global Technology Operations LLC

Inventor： Li Yang ,  Mei Cai ,  Anne M. Dailly ,  Fang Dai

IPC: H01M50/446 ,  H01M10/14 ,  C07F1/02 ,  C07F5/00 ,  C07F1/08 ,  C07F5/02 ,  H01M10/0568 ,  C07F3/06 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  C01B11/18 ,  C01B35/06 ,  C01D15/00

Abstract: A hybrid separator for an electrochemical cell is provided, along with methods of making the hybrid separator. The hybrid separator includes a first metal-organic framework comprising copper and having a plurality of first pores and a second distinct metal-organic framework comprising indium or zinc and having a plurality of second pores. The hybrid separator is capable of adsorbing one or more lithium salts in at least one of the plurality of first pores or the plurality of second pores so as to be ionically conductive. The hybrid separator may have a conductivity greater than or equal to about 0.1 mS/cm to less than or equal to about 1 mS/cm and is substantially free of any polymeric binder.

公开(公告)号：US10919112B2

公开(公告)日：2021-02-16

申请号：US15967079

申请日：2018-04-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Fang Dai ,  Hongliang Wang ,  Wayne Cai ,  Mei Cai

IPC: B23K26/21 ,  H01M10/052 ,  H01M4/04 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/02 ,  B23K101/36

Abstract: A negative electrode for an electrochemical cell of a lithium metal battery may be manufactured by joining together a metallic current collector piece and a lithium metal piece. The metallic current collector piece may be positioned adjacent the lithium metal piece in an at least partially lapped configuration at a weld site. A laser beam may be directed at an upper surface of the metallic current collector piece at the weld site to melt a portion of the lithium metal piece adjacent the metallic current collector piece and produce a lithium metal molten weld pool. The second laser beam may be terminated to solidify the lithium metal molten weld pool into a solid weld joint that physically bonds the lithium metal piece and the metallic current collector piece together at the weld site.

公开(公告)号：US10751694B2

公开(公告)日：2020-08-25

申请号：US15880976

申请日：2018-01-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Anne M. Dailly ,  Fang Dai ,  Timothy J. Fuller

IPC: C08G83/00 ,  B01J20/26 ,  B01D69/14 ,  B01J31/22 ,  B01D67/00 ,  B01D71/36 ,  B01J20/22 ,  B01J20/28 ,  B01J20/30 ,  B01J31/06 ,  B01J31/16 ,  B01J35/00 ,  B01J35/02 ,  B01J37/03 ,  B01J37/04 ,  H01M10/052 ,  H01M10/0565 ,  H01M2/14 ,  H01M2/16 ,  B01J35/04 ,  B01D71/02 ,  C08L87/00 ,  C08L73/00 ,  C08L85/00 ,  C08G67/00 ,  C08G79/00

Abstract: A method of making a metal organic framework (MOF)-polymer composite material includes forming a homogeneous solution comprising a solvent, a metal salt, a polymer which is soluble in the solvent, and a reactant which can be synthesized to provide an organic linker during formation of a MOF structure, synthesizing the homogeneous solution to crystallize a MOF structure in the homogenous solution to yield the MOF structure distributed in a remainder solution, applying an antisolvent to the remainder solution with the MOF structure distributed in the remainder solution to form a polymer-rich phase, where the MOF structure is integrated into the polymer matrix during forming of the polymer matrix to produce a MOF-polymer composite material. The MOF-polymer composite material can be formed on a substrate to produce a MOF structured object, which can be a membrane, film, or other object.