公开(公告)号：US20250149612A1

公开(公告)日：2025-05-08

申请号：US18502633

申请日：2023-11-06

Applicant: GM Global Technology Operations LLC

Inventor： Kevin Dongjun Kim ,  James Chung ,  Young Nam Kim ,  Virendra Kumar Dewangan ,  Varsha Tadwalkar ,  Christopher Schlaupitz

IPC: H01M10/04 ,  H01M50/536 ,  H01M50/54

Abstract: A system for consolidating tabs of a battery cell includes a tab guide configured to receive a plurality of tabs extending from electrode layers of a cell stack, the cell stack configured to be disposed in a housing to form the battery cell, the tab guide including opposing guide components configured to be positioned between the cell stack and a weld plate, the tab guide configured to receive the plurality of tabs between the opposing guide components. The system also includes an actuator configured to be operated to move one or more of the opposing guide components to deform a length of one or more tabs between the cell stack and the weld plate.

公开(公告)号：US20240258656A1

公开(公告)日：2024-08-01

申请号：US18159971

申请日：2023-01-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher Schlaupitz

IPC: H01M50/514 ,  H01M50/209 ,  H01M50/211 ,  H01M50/213 ,  H01M50/503 ,  H01M50/507 ,  H01M50/51 ,  H01M50/512 ,  H01M50/524

CPC classification number: H01M50/514 ,  H01M50/209 ,  H01M50/211 ,  H01M50/213 ,  H01M50/503 ,  H01M50/507 ,  H01M50/51 ,  H01M50/512 ,  H01M50/524

Abstract: A battery module composed of a plurality of electrochemical cells has selected positive and negative terminals being electrically connected and weldlessly mechanically joined employing a first adhesive material having electrically conductive properties and a second adhesive material having electrically isolative properties.

公开(公告)号：US11548397B2

公开(公告)日：2023-01-10

申请号：US17036460

申请日：2020-09-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert J. Heydel ,  Christopher Schlaupitz

IPC: B60L50/60 ,  B60L53/10 ,  H01M10/04 ,  H02J7/00 ,  B60L53/16

Abstract: A three-state contactor for an electrical system having a battery pack and voltage bus rail includes first and second pairs of electrical terminals. The first pair of terminals is separated by a first circuit gap in a first circuit path extending between the bus rail and an electrode terminal of the battery pack. The second pair of terminals is separated by a second circuit gap in a second circuit path extending between the bus rail and electrode terminal. A contactor arm, in response to a corresponding switch activation signal, translates in an orthogonal direction with respect to its longitudinal axis between a first ON state position, an OFF position, and a second ON position to close the first circuit gap, open both circuit gaps, or close the second circuit gap, respectively. A multi-pack battery system and an electric powertrain may use the contactor.

公开(公告)号：US20220097536A1

公开(公告)日：2022-03-31

申请号：US17036460

申请日：2020-09-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert J. Heydel ,  Christopher Schlaupitz

IPC: B60L50/60 ,  B60L53/10 ,  B60L53/16 ,  H01M10/04 ,  H02J7/00

Abstract: A three-state contactor for an electrical system having a battery pack and voltage bus rail includes first and second pairs of electrical terminals. The first pair of terminals is separated by a first circuit gap in a first circuit path extending between the bus rail and an electrode terminal of the battery pack. The second pair of terminals is separated by a second circuit gap in a second circuit path extending between the bus rail and electrode terminal. A contactor arm, in response to a corresponding switch activation signal, translates in an orthogonal direction with respect to its longitudinal axis between a first ON state position, an OFF position, and a second ON position to close the first circuit gap, open both circuit gaps, or close the second circuit gap, respectively. A multi-pack battery system and an electric powertrain may use the contactor.