公开(公告)号：US20240097266A1

公开(公告)日：2024-03-21

申请号：US17945607

申请日：2022-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SriLakshmi Katar ,  Andrew P. Oury ,  Taylor R. Garrick ,  Liang Xi ,  Kuber Mishra ,  Kavi Loganathan

IPC: H01M50/289 ,  H01M50/209 ,  H01M50/211 ,  H01M50/512 ,  H01M50/534

CPC classification number: H01M50/289 ,  H01M50/209 ,  H01M50/211 ,  H01M50/512 ,  H01M50/534

Abstract: A battery assembly includes a first plurality of battery cells, a second plurality of battery cells, and an intermediate layer arranged in a stack. Each of the first plurality of battery cells includes a first cathode, a first cathode current collector, a first anode, a first anode current collector, and a first solid state separator, and each of the second plurality of battery cells includes a second cathode, a second cathode current collector, a second anode, a second anode current collector, and a second solid state separator. The first cathode current collectors are electrically connected in parallel to a first terminal, and the second anode current collectors are electrically connected in parallel to a second terminal. The first anode current collectors of the first plurality of battery cells are electrically connected and are electrically connected to the second cathode current collectors of the second plurality of battery cells.

公开(公告)号：US20230275288A1

公开(公告)日：2023-08-31

申请号：US17582316

申请日：2022-01-24

Applicant: Song-Yul Choe ,  Yang Hu ,  GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Song-Yul Choe ,  Yang Hu ,  Taylor R. Garrick

IPC: H01M10/6572 ,  H01M10/613 ,  H01M10/63 ,  H01M10/6563 ,  H01M10/653 ,  H01M10/48

CPC classification number: H01M10/6572 ,  H01M10/63 ,  H01M10/486 ,  H01M10/613 ,  H01M10/653 ,  H01M10/6563

Abstract: A battery electric device includes a battery cell, e.g., a pouch, prismatic, or cylindrical cell, connectable to an electric load, and a direct-to-air thermoelectric assembly (TEA) or another heat pump connected to a surface of the cell. A pressure control device maintains constant pressure on the cell surface when the cell is connected to the load. Connection to the load causes the TEA/heat pump to pump heat from the cell. A sensor, e.g., thermocouple(s) and/or heat flux sensor(s), generate an output voltage signal indicative of the quantity of heat. A battery system includes the device and a processor in communication with the cell, the load, and the power supply. The processor generates an electronic control signal in response to the quantity of heat.

公开(公告)号：US20230091154A1

公开(公告)日：2023-03-23

申请号：US17479558

申请日：2021-09-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jing Gao ,  Brian J. Koch ,  Taylor R. Garrick

IPC: B60L50/64 ,  H01M10/48 ,  H01M50/569 ,  H01M10/052 ,  H01M10/0585 ,  H01M50/46 ,  G01R31/396

Abstract: Presented are electrochemical devices with in-stack sensor arrays, methods for making/using such electrochemical devices, and lithium-class battery cells with stacked electrode assemblies having in-stack sensor arrays. An electrochemical device includes a device housing that stores an electrolyte composition for conducting ions. An electrode stack, which is located inside the device housing in electrochemical contact with the electrolyte, includes at least two working electrodes. An electrically insulating and ionically transmissive separator is interposed between each neighboring pair of working electrodes. A reference electrode is attached to one side of the separator and connected to multiple electrical sensing devices. Multiple electrical sensing leads are attached to another side of the separator, opposite the reference electrode, with each abutting a discrete region of a working electrode and each connecting to one of the sensing devices to transmit thereto electrical signals indicative of an electrical characteristic (e.g., voltage) of the discrete region it contacts.

公开(公告)号：US20240222618A1

公开(公告)日：2024-07-04

申请号：US18090820

申请日：2022-12-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Taylor R. Garrick ,  Ryan P. Hickey

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/505 ,  H01M4/66 ,  H01M50/105

CPC classification number: H01M4/525 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/505 ,  H01M4/661 ,  H01M50/105 ,  H01M2004/028

Abstract: A cathode with a composite nickel structure for use in a battery cell is provided. The cathode includes a current collector including a first side and a second side. The cathode further includes a first cathode electrode coating the first side of the current collector. The first cathode electrode includes a first relatively higher concentration of nickel. The cathode further includes a second cathode electrode coating the second side of the current collector. The second cathode electrode includes one of a second relatively lower concentration of nickel as compared to the first cathode electrode or a nickel-free material.

公开(公告)号：US20240194963A1

公开(公告)日：2024-06-13

申请号：US18079366

申请日：2022-12-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ryan P. Hickey ,  Taylor R. Garrick ,  Phillip D. Hamelin

IPC: H01M10/613 ,  H01M10/625 ,  H01M10/6555 ,  H01M10/6556 ,  H01M50/204

CPC classification number: H01M10/613 ,  H01M10/625 ,  H01M10/6555 ,  H01M10/6556 ,  H01M50/204 ,  H01M2220/20

Abstract: Presented are thermal management systems with cell-level internal cooling for multicell battery assemblies, methods for making/using such systems, and vehicles equipped with such systems. A battery assembly includes one or more battery cells located inside a battery housing. Each battery cell includes a cell case with a coolant tube located inside the cell case and opening through a case wall. A cold plate assembly, which is located inside the battery housing and attached to the battery cell(s), includes stacked first and second plates, a coolant intake shaft projecting from the first plate into the coolant tube, and a coolant exhaust shaft projecting from the second plate into the coolant intake shaft and coolant tube. The cold plate assembly circulates coolant between the stacked plates, into each cell case via the coolant tube and coolant intake shaft, and out of each cell case via the coolant tube and coolant exhaust shaft.

公开(公告)号：US11799152B2

公开(公告)日：2023-10-24

申请号：US17582316

申请日：2022-01-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  Song-Yul Choe ,  Yang Hu

Inventor： Song-Yul Choe ,  Yang Hu ,  Taylor R. Garrick

IPC: H01M10/6572 ,  H01M10/613 ,  H01M10/48 ,  H01M10/6563 ,  H01M10/653 ,  H01M10/63

CPC classification number: H01M10/6572 ,  H01M10/486 ,  H01M10/613 ,  H01M10/63 ,  H01M10/653 ,  H01M10/6563

Abstract: A battery electric device includes a battery cell, e.g., a pouch, prismatic, or cylindrical cell, connectable to an electric load, and a direct-to-air thermoelectric assembly (TEA) or another heat pump connected to a surface of the cell. A pressure control device maintains constant pressure on the cell surface when the cell is connected to the load. Connection to the load causes the TEA/heat pump to pump heat from the cell. A sensor, e.g., thermocouple(s) and/or heat flux sensor(s), generate an output voltage signal indicative of the quantity of heat. A battery system includes the device and a processor in communication with the cell, the load, and the power supply. The processor generates an electronic control signal in response to the quantity of heat.

公开(公告)号：US20240274782A1

公开(公告)日：2024-08-15

申请号：US18166819

申请日：2023-02-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Taylor R. Garrick

IPC: H01M4/04 ,  H01M50/107

CPC classification number: H01M4/0435 ,  H01M50/107

Abstract: A method of reducing non-uniform degradation in a battery cell comprising: determining a likely temperature distribution for the battery cell; determining a temperature profile of the battery cell; calculating an electrochemical reaction rate in the battery cell; determining at least one non-uniformity in the electrochemical reaction rate; inducing a non-uniformity in at least one electrode design characteristic to counteract the at least one non-uniformity in the electrochemical reaction rate; and including at least one electrode having the non-uniformity in at least one electrode design characteristic in the battery cell to drive a more uniform electrochemical reaction rate through the battery cell, which could result in decreased fatigue life, particle stress and degradation of the battery cell during, for example, but not limited to high rate operation.

公开(公告)号：US20240030514A1

公开(公告)日：2024-01-25

申请号：US17870150

申请日：2022-07-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Taylor R. Garrick ,  Michael A. Lelli

IPC: H01M10/6556 ,  H01M10/613 ,  H01M10/6568 ,  H01M10/643

CPC classification number: H01M10/6556 ,  H01M10/613 ,  H01M10/6568 ,  H01M10/643

Abstract: An electrochemical battery cell includes a plurality of first electrodes, a plurality of second electrodes, a plurality of layers interleaved between and stacked in an electrode stack along a central stack axis with the first and second electrodes, a first current collector, and a second current collector. The second current collector includes an elongated cylinder and a fluidic coupler, the second current collector extends axially through the central stack cavity, and the second current collector includes a flow channel extending longitudinally between a first end and a second end.

公开(公告)号：US11764421B2

公开(公告)日：2023-09-19

申请号：US17149137

申请日：2021-01-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Taylor R. Garrick ,  Yiling Dai

IPC: H01M10/63 ,  H01M10/0525 ,  H01M10/615 ,  H01M10/647 ,  H01M10/6572 ,  H01M10/48 ,  H01M10/625

CPC classification number: H01M10/63 ,  H01M10/0525 ,  H01M10/482 ,  H01M10/615 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6572 ,  H01M2250/20

Abstract: A method, apparatus, and control system for a battery cell include a heat exchanger in thermal contact with the battery cell, and a first controller. The first controller connects to the heat exchanger, and monitors the battery cell. The first controller includes a reduced order electrochemical model, a heat generation model, and a heat generation controller. The first controller determines a target parameter for the battery cell, and determines battery cell parameters. The reduced order electrochemical model determines internal ROM variables based upon the battery cell parameters. The heat generation model determines an electrochemical heat generation parameter from the battery cell based upon the internal ROM variables and the target parameter for the battery cell. The heat generation controller determines a heat work parameter based upon the electrochemical heat generation and the target parameter for the battery cell. The heat exchanger is controlled based upon the heat work parameter.

公开(公告)号：US20230291020A1

公开(公告)日：2023-09-14

申请号：US17691400

申请日：2022-03-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yun Cai ,  Xingcheng Xiao ,  Yeh-Hung Lai ,  Taylor R. Garrick ,  Leng Mao

IPC: H01M10/48 ,  H01M10/0525 ,  H01M4/70

CPC classification number: H01M10/486 ,  H01M10/0525 ,  H01M4/70

Abstract: A battery cell monitoring system provides a direct measurement of electrical and heat distributions in a battery cell, using segmented elements that are in direct contact with an electrode of the battery. The battery cell monitoring system provides distributed local through-plane current, temperature, and pressure measurements with power for operation of the battery being supplied via battery tabs. An embodiment of a battery cell monitoring system includes a two-dimensional current collector array, a two-dimensional temperature sensor array, a plurality of pressure sensors, and a plurality of reference electrodes interspersed within the current collector array. The current collector array, the temperature sensor array, the pressure sensors, and the reference electrodes are arranged on a printed circuit board. The current collector array is configured to have direct physical contact with an electrode of the battery cell. The current collector array is disposed within a container of the battery cell.