公开(公告)号：US20230411610A1

公开(公告)日：2023-12-21

申请号：US17840928

申请日：2022-06-15

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Yuntao GU ,  Jeffrey David CAIN ,  Sayed Youssef Sayed NAGY ,  Nicholas Paul William PIECZONKA ,  Thomas E. MOYLAN

IPC分类号： H01M4/38 ,  H01M4/36

CPC分类号： H01M4/386 ,  H01M4/366 ,  H01M2004/027

摘要： The present disclosure provides a method for forming a pre-lithiated layered anode material. The method includes removing cations from a precursor material including a layered ionic compound to form creates a two-dimensional structure that defines a layered anode material. The method further includes inserting lithium ions using an anion insertion wet-chemical process into the layered anode materials to form the pre-lithiated layered anode material. The anion insertion wet-chemical process can be the same as or different form the cation extraction wet-chemical process. In each instance, the precursor material is be represented by MX2, where M is one of calcium (Ca) and magnesium (Mg) and X is one of silicon (Si), germanium (Ge), and boron (B) and the precursor material has alternating layers of M and X.

公开(公告)号：US20230234035A1

公开(公告)日：2023-07-27

申请号：US17581447

申请日：2022-01-21

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  University of Central Florida Research Foundation, Inc.

发明人： Yuntao GU ,  Wei LI ,  Fudong LIU

IPC分类号： B01J23/44 ,  B01J23/10 ,  B01J21/04 ,  B01J35/00 ,  B01J35/10 ,  B01J37/08 ,  B01J37/02

CPC分类号： B01J23/44 ,  B01J23/10 ,  B01J21/04 ,  B01J35/0006 ,  B01J35/1014 ,  B01J35/1042 ,  B01J37/08 ,  B01J37/0215

摘要： A layered catalyst structure for purifying an exhaust gas stream includes a catalyst support and a palladium catalyst layer including an atomic dispersion of palladium ions electrostatically adsorbed onto an exterior surface of the catalyst support. The catalyst support includes an alumina substrate, a first ceria layer disposed on and extending substantially continuously over the alumina substrate, and a second colloidal ceria layer formed directly on the first ceria layer over the alumina substrate. The palladium catalyst layer is formed on the exterior surface of the catalyst support by applying a palladium-containing precursor solution to the exterior surface of the catalyst support and then heating the catalyst support and the palladium-containing precursor solution. The palladium-containing precursor solution includes a positively charged palladium complex in an aqueous medium and has a pH greater than a point of zero charge of the second colloidal ceria layer.

公开(公告)号：US20240218544A1

公开(公告)日：2024-07-04

申请号：US18087410

申请日：2022-12-22

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Sayed Youssef Sayed NAGY ,  Jeffrey David CAIN ,  Nicholas Paul William PIECZONKA ,  Thomas E. MOYLAN ,  Yuntao GU

IPC分类号： C25C1/02 ,  C25C7/06

CPC分类号： C25C1/02 ,  C25C7/06

摘要： A method for extracting lithium from lithium-based materials to be recycled using an electrochemical reactor includes applying a voltage to a current collector at least partially disposed in an electrolyte carried by the electrochemical reactor, where the lithium-based materials including lithium to be recovered is disposed in the electrolyte and lithium ions move from the lithium-based material towards the current collector upon application of the voltage. In certain variations, the method may also include, prior to the application of the voltage, applying a current to the current collector.

公开(公告)号：US20240213438A1

公开(公告)日：2024-06-27

申请号：US18087421

申请日：2022-12-22

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Jeffrey David CAIN ,  Thomas E. MOYLAN ,  Sayed Youssef Sayed NAGY ,  Nicholas Paul William PIECZONKA ,  Yuntao GU

IPC分类号： H01M4/04

CPC分类号： H01M4/0459

摘要： A method for forming an electroactive material includes sourcing a current or voltage to an electrochemical reactor that includes a cation source, an electrolyte mixture, and an electroactive material precursor in contact with one another, where the current or voltage serves to ionize and form cations at the cation source that react with the electroactive material precursor in the electrolyte mixture to form the electroactive material. The method may include one or more filtering steps, one or more rinsing steps, or a combination of one or more filtering steps and one or more rinsing steps to collect the electroactive material from the electrolyte.

公开(公告)号：US20240253018A1

公开(公告)日：2024-08-01

申请号：US18103053

申请日：2023-01-30

申请人： GM Global Technology Operations LLC ,  BASF Corporation

发明人： Yuntao GU ,  Michelle H. WIEBENGA ,  Raneen TAHA ,  Yuejin LI ,  Xiaolai ZHENG

IPC分类号： B01J23/63 ,  B01D53/94 ,  B01J21/04 ,  B01J23/10 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08 ,  F01N3/10 ,  F01N3/28

CPC分类号： B01J23/63 ,  B01D53/945 ,  B01J21/04 ,  B01J23/10 ,  B01J35/19 ,  B01J35/23 ,  B01J35/56 ,  B01J37/0211 ,  B01J37/0236 ,  B01J37/024 ,  B01J37/08 ,  F01N3/101 ,  F01N3/2803 ,  B01D2255/1025 ,  B01D2255/9155 ,  B01D2257/404 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/01 ,  F01N2370/02

摘要： A method of manufacturing a layered catalyst for purifying an exhaust gas stream includes introducing a mixture of colloidal ceria, alumina particles, and a liquid medium into a drying chamber via an atomizer to form atomized droplets of the mixture. A drying gas is introduced into the drying chamber such that the atomized droplets contact the drying gas, the liquid medium is removed from the atomized droplets, and ceria nanoparticles deposit on the alumina particles to form composite catalyst support particles. A catalyst precursor including a rhodium precursor and colloidal ceria is applied to the composite catalyst support particles. The composite catalyst support particles and the catalyst precursor are heated to form the layered catalyst. The layered catalyst includes an alumina substrate, a ceria nanoparticle layer extending substantially continuously over the alumina substrate, and a rhodium catalyst layer including an atomic dispersion of rhodium adsorbed on the ceria nanoparticle layer.

公开(公告)号：US20230372909A1

公开(公告)日：2023-11-23

申请号：US17749894

申请日：2022-05-20

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Yuntao GU ,  Gongshin QI ,  Jiazhi HU ,  Wei LI

IPC分类号： B01J23/63 ,  B01J21/04 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  B01D53/94 ,  F01N3/28

CPC分类号： B01J23/63 ,  B01J21/04 ,  B01J35/0013 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1047 ,  B01J37/0244 ,  B01J37/0242 ,  B01J37/0228 ,  B01J37/0207 ,  B01J37/0236 ,  B01J37/0213 ,  B01D53/945 ,  F01N3/2803 ,  F01N3/2842 ,  B01D2255/9025 ,  B01D2255/1025 ,  B01D2255/2065 ,  B01D2255/9207 ,  B01D2255/9205 ,  F01N2370/02

摘要： A layered catalyst structure for purifying an exhaust gas stream includes a catalyst support and a rhodium catalyst layer including an atomic dispersion of rhodium ions and/or rhodium atoms adsorbed on an exterior surface of the catalyst support. The catalyst support includes an alumina substrate, a first ceria layer disposed on and extending substantially continuously over the alumina substrate, and a second colloidal ceria layer formed directly on the first ceria layer over the alumina substrate.