公开(公告)号：US20250015384A1

公开(公告)日：2025-01-09

申请号：US18347767

申请日：2023-07-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Liang Xi ,  Alexander M. Bilinski ,  Lei Wang ,  Srikant Srinivasan ,  SriLakshmi Katar

IPC: H01M10/653 ,  B60K11/02 ,  B60L50/64 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6556 ,  H01M10/6568 ,  H01M50/103 ,  H01M50/209

Abstract: A mechanical design of a rechargeable battery cell (e.g., a Lithium-ion battery) disposed inside of a prismatic can, for use in electric vehicles and other electric-powered devices. The improved design uses a thermally conductive insert to divide the battery cell into two adjacent volumes that each hold a pair of stacked layers of a battery cell. This thermally conductive insert conducts heat from the center of the battery cell during battery recharging to actively-cooled channels disposed in a pair of cooling manifolds that are disposed on two vertical sides of the battery cell. Alternatively, or additionally, an actively-cooled bottom cold plate can be used. The pair of stacked battery layers can each be wound in a “jelly-roll” geometric configuration. The thermally conductive insert may be made of aluminum, aluminum alloy, copper, or copper alloy, and combinations thereof.

公开(公告)号：US20200377012A1

公开(公告)日：2020-12-03

申请号：US16425871

申请日：2019-05-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Miguel A. Saez ,  Marcus J. Huber ,  Qinglin Zhang ,  Lei Wang ,  Sudhakaran Maydiga

IPC: B60Q1/52 ,  B60Q5/00 ,  G06K9/00 ,  B60W30/095

Abstract: A method for improving pedestrian safety is provided. The method includes determining operating conditions of a vehicle using a plurality of vehicle sensors. A path of the vehicle is predicted based on the determined operating conditions. Pedestrian parameters for a pedestrian in a vicinity of the vehicle are acquired using the plurality of vehicle sensors. The pedestrian parameters include at least one of a position, a speed of the pedestrian, gait, body posture and a level of distractedness. A determination is made whether a notification of the pedestrian is necessary based on the determined vehicle operating conditions and the acquired pedestrian parameters. A mode of notification of the pedestrian is selected from a plurality of modes of notification, in response to determining that the notification of the pedestrian is necessary. The pedestrian is notified using the selected mode of notification.

公开(公告)号：US20250062479A1

公开(公告)日：2025-02-20

申请号：US18449897

申请日：2023-08-15

Applicant: GM Global Technology Operations LLC

Inventor： Fengkun Wang ,  Liang Xi ,  Lei Wang ,  Rachel Hysong ,  SriLakshmi Katar

IPC: H01M50/30 ,  B60L50/64 ,  H01M50/249 ,  H01M50/289

Abstract: A battery assembly of a vehicle includes a battery cell, and a cell holder in which the battery cell is located. The cell holder includes a holder base, and one or more holder legs extending downwardly from the holder base. A plurality of cell vents extend through the holder base. The plurality of cell vents are configured to relieve a pressure of the battery cell in the occurrence of a thermal event.

公开(公告)号：US20240421436A1

公开(公告)日：2024-12-19

申请号：US18335521

申请日：2023-06-15

Applicant: GM Global Technology Operations LLC

Inventor： Liang Xi ,  Fengkun Wang ,  Lei Wang ,  SriLakshmi Katar

IPC: H01M50/477 ,  B60K1/04 ,  B60L50/64 ,  H01M50/103 ,  H01M50/367 ,  H01M50/474 ,  H01M50/486

Abstract: A battery cell for a vehicle includes a cell can having a first wall, a second wall, a first side wall and a second side wall. The first wall, the second wall, the first side wall, and the second side wall defining an electrode stack receiving zone. A vent formed in the second wall. The vent fluidically connects the electrode stack receiving zone with an exterior of the cell can. An electrode stack is positioned in the electrode stack receiving zone. The electrode stack is spaced from of the first side wall by a channel. The cell can includes a plurality of raised ribs formed in the second wall. Each of the plurality of raised ribs includes a support surface. The electrode stack rests on the support surface in the electrode stack receiving zone.

公开(公告)号：US10399037B1

公开(公告)日：2019-09-03

申请号：US15958058

申请日：2018-04-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Wang ,  Shouxian Ren ,  Wei Li

IPC: B01D53/94 ,  B01J29/068 ,  B01J29/80 ,  B01J35/00 ,  B01J35/04 ,  B01J35/08 ,  F01N3/08

Abstract: A nitrogen oxides (NOx) storage catalyst for treating an exhaust gas flow is provided. The NOX storage catalyst includes a flow-through substrate defining channels for receiving the exhaust gas flow and first and second zones present in the channels. The first zone includes a first NOX storage catalyst coating capable of storing NOX at a first adsorption temperature and releasing NOX at a first desorption temperature. The second zone includes a second NOX storage catalyst coating capable of storing NOX at a second adsorption temperature and releasing NOX at a second desorption temperature. The second desorption temperature is greater than the first desorption temperature. Methods of using the NOX storage catalyst for treating an exhaust gas stream flowing from a vehicle engine during a period following a cold-start of the engine are also provided.

公开(公告)号：US20190048770A1

公开(公告)日：2019-02-14

申请号：US15675126

申请日：2017-08-11

Applicant: GM Global Technology Operations LLC

Inventor： Lei Wang ,  Gongshin Qi ,  Wei Li

IPC: F01N3/01

CPC classification number: F01N3/01 ,  B01D53/32 ,  B01D53/9445 ,  B01D53/9459 ,  B01D2259/818 ,  B01J19/088 ,  B01J2219/0896 ,  F01N3/0275 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/2066 ,  F01N2240/28 ,  F01N2240/38 ,  F01N2340/06 ,  F01N2900/0416 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1621 ,  F02M26/22 ,  F02M26/33 ,  H05H1/24 ,  H05H2001/481 ,  H05H2245/1215

Abstract: An engine assembly includes a diesel internal combustion engine and an aftertreatment system coupled to the diesel internal combustion engine. The aftertreatment system includes a diesel oxidation catalyst coupled to the diesel internal combustion engine such that the diesel oxidation catalyst receives exhaust gases from the diesel internal combustion engine. The aftertreatment system includes a plasma generator in fluid communication with the diesel oxidation catalyst, wherein the plasma generator is upstream of the diesel oxidation catalyst and downstream of the diesel internal combustion engine, and the plasma generator is configured to generate oxidizers to at least partially oxidize hydrocarbons in the exhaust gases exiting the diesel internal combustion engine.

公开(公告)号：US20240421407A1

公开(公告)日：2024-12-19

申请号：US18335289

申请日：2023-06-15

Applicant: GM Global Technology Operations LLC

Inventor： Lei Wang ,  Fengkun Wang ,  Liang Xi ,  Linan Zheng ,  SriLakshmi Katar ,  Arturo Sanchez Perez

IPC: H01M50/249 ,  B60L50/64 ,  H01M50/233 ,  H01M50/264 ,  H01M50/30

Abstract: A battery cell for a vehicle includes a cell can having a first wall, a second wall, a first side wall and a second side wall. The first wall, the second wall, the first side wall, and the second side wall defining an electrode stack receiving zone. A vent is formed in the second wall. The vent is spaced from the first side wall and the second side wall. The vent fluidically connects the electrode stack receiving zone with an exterior of the cell can. An electrode stack is positioned in the electrode stack receiving zone. The electrode stack is spaced from of the first side wall by a channel. A cell stack support is arranged in the electrode stack receiving zone and supporting the electrode stack above the second wall. The cell stack support includes at least one passage that transports gases from the channel to the vent.

公开(公告)号：US20240405298A1

公开(公告)日：2024-12-05

申请号：US18327484

申请日：2023-06-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michelle H. WIEBENGA ,  Rashmi Prasad ,  Vamakshi Yadav ,  Lei Wang ,  Chandra S. Namuduri

IPC: H01M10/42 ,  H01M10/48 ,  H01M50/103 ,  H01M50/209 ,  H01M50/342

Abstract: A system for detecting bulging or rupturing of a vent cap includes a battery cell including a rigid enclosure, first and second terminals, and a vent cap. A first sensor is arranged adjacent to the vent cap and configured to sense a parameter affected by rupturing of the vent cap. A controller is configured to compare the parameter to a predetermined parameter and to detect rupturing of the vent cap in response to the comparison.

公开(公告)号：US20240396082A1

公开(公告)日：2024-11-28

申请号：US18323744

申请日：2023-05-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chuanlong WANG ,  Lei Wang ,  Xiaosong Huang

IPC: H01M10/0567 ,  H01M10/052 ,  H01M10/0569

Abstract: A battery cell comprises C cathode electrodes comprising a cathode current collector and a cathode active material layer, where C is an integer greater than zero, A anode electrodes comprising an anode current collector and an anode active material layer, where A is an integer greater than zero, and S separators, where S is an integer greater than zero. An electrolyte comprising an additive including at least one of tris(2,2,2-trifluoroethyl) phosphate (TFEP) and a TFEP derivative.

公开(公告)号：US11843110B2

公开(公告)日：2023-12-12

申请号：US16668882

申请日：2019-10-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei Wang ,  Xingcheng Xiao ,  Wei Li ,  Mark W. Verbrugge ,  Michael P. Balogh

IPC: H01M4/1395 ,  H01M4/38 ,  H01M4/66 ,  H01M4/04 ,  H01M4/02

CPC classification number: H01M4/1395 ,  H01M4/0471 ,  H01M4/386 ,  H01M4/387 ,  H01M4/663 ,  H01M2004/027 ,  H01M2004/028

Abstract: Methods of making negative electrode materials for an electrochemical cell that cycles lithium ions are provided. A surface of the electrode material formed of silicon, silicon-containing alloys, tin-containing alloys, or combinations thereof is treated with an oxidant at a first temperature of greater than or equal to about 100° C. to form a continuous intermediate layer comprising oxides. The method also includes pyrolyzing a carbon-containing precursor over the continuous intermediate layer at a second temperature of greater than or equal to about 600° C. to form a continuous carbon coating thereon. The intermediate layer oxides may be transformed to carbides. The continuous carbon coating comprises both graphitic carbon and amorphous carbon and may be a multilayered coating, where the inner layer predominantly includes amorphous carbon and the outer layer predominantly includes graphitic carbon.