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公开(公告)号：US20250141029A1
公开(公告)日：2025-05-01
申请号：US18499375
申请日：2023-11-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Ryan Patrick Hickey , Julian Roy Sherborne , Diptak Bhattacharya
IPC: H01M50/282 , H01M10/658 , H01M50/209 , H01M50/342
Abstract: A battery module includes a container, a plurality of battery cells within the container, and a cover attached to sides of the container and extending in a plane over the plurality of battery cells wherein the cover comprises an inner layer and an outer layer. Upon a thermal event in one of the cells the battery cover can deflect inward toward the cells.
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公开(公告)号：US20250158187A1
公开(公告)日：2025-05-15
申请号：US18508877
申请日：2023-11-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Diptak Bhattacharya , Derek F. Lahr , Xiaoling Chen , Anil K. Sachdev , Thomas A. Barth , Christopher P. Scolaro , Andrew C. Bobel , Ryan P. Hickey
IPC: H01M50/209 , H01M10/613 , H01M10/647 , H01M10/6554 , H01M50/249 , H01M50/358 , H01M50/507
Abstract: Presented are battery assemblies containing long prismatic cells with interleaved gas manifolds and electrical busbars, methods for making/using such battery assemblies, and vehicles equipped with such battery assemblies. A prismatic battery assembly includes multiple stacks of prismatic battery cells that are located inside of and extend longitudinally across a rigid and insulated assembly housing. Each battery cell includes a prism-shaped cell can that contains one or more electrochemical cells. Located at one or both lateral ends of each cell can are a cell vent and a pair of electrical terminals. Electrically connected to the battery cell terminals is an electrical busbar that is located inside the assembly housing, either between the cell stacks or laterally outboard of the cell stacks. Fluidly connected to the battery cell vents is a gas manifold that is located inside the assembly housing, either between the cell stacks or laterally outboard of the cell stacks.
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公开(公告)号：US20250132374A1
公开(公告)日：2025-04-24
申请号：US18492145
申请日：2023-10-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Andrew Clay BOBEL , Michael Apone , Diptak Bhattacharya
IPC: H01M10/04 , H01M50/119 , H01M50/131
Abstract: An enclosure body and a method for manufacturing an enclosure includes one of extruding and deep drawing an enclosure including a plurality of side walls defining a first cavity. The plurality of side walls are formed without stiffening portions. After extruding and deep drawing of the enclosure, forming a plurality of stiffening portions on the enclosure using an expandable punch, a hydraulic punch, and/or hydroforming.
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公开(公告)号：US20240313190A1
公开(公告)日：2024-09-19
申请号：US18121345
申请日：2023-03-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xiaowei Yu , Ming Wang , Ryan Curtis Sekol , Diptak Bhattacharya , Thomas E. Moylan , Jennifer Therese Bracey
CPC classification number: H01M4/0404 , H01M4/623 , H01M4/662 , H01M4/742 , H01M4/75
Abstract: A method for manufacturing electrodes for a battery cell includes providing a first free-standing electrode; providing a current collector including holes; providing a second free-standing electrode; and laminating the current collector between the first free-standing electrode and the second free-standing electrode using at least one of heat and pressure and without using a solvent.
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Patent Agency Ranking
公开(公告)号：US20250105269A1
公开(公告)日：2025-03-27
申请号：US18473799
申请日：2023-09-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Diptak Bhattacharya , Sayed Youssef Sayed Nagy , Caleb Reese , Yoojin Kim , Shaomao Xu , Hassan Ghassemi-Armaki
IPC: H01M4/40 , C22C1/02 , C22C24/00 , H01M4/02 , H01M4/04 , H01M4/134 , H01M4/1395 , H01M4/38 , H01M4/42 , H01M4/74 , H01M10/052
Abstract: Methods for fabricating an anode, methods for fabricating a battery, and lithium batteries are disclosed. A method for fabricating an anode includes forming a melt comprising lithium and a surface tension reduction agent, wherein the surface tension reduction agent is selected from the group consisting of silver, tin, gallium, indium, zinc, and combinations thereof; and contacting an anode current collector with the melt, wherein a layer of the melt wets onto the anode current collector to form the anode as a lithium alloy.
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公开(公告)号：US20250087672A1
公开(公告)日：2025-03-13
申请号：US18464854
申请日：2023-09-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Sayed Youssef Sayed NAGY , Caleb Reese , Diptak Bhattacharya , Anil K. Sachdev
IPC: H01M4/36 , H01M4/04 , H01M4/134 , H01M4/136 , H01M4/38 , H01M4/40 , H01M4/58 , H01M4/66 , H01M10/0585
Abstract: A battery cell includes a battery cell stack including A anode electrodes including an anode active material layer arranged adjacent to an anode current collector; C cathode electrodes including a cathode active material layer arranged adjacent to a cathode current collector; and S separators arranged between the A anode electrodes and the C cathode electrodes. The anode active material layer of the A anode electrodes includes a lithium metal layer and a lithium alloy layer comprising an alloy of lithium and a lithiophilic metal.
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公开(公告)号：US20250087660A1
公开(公告)日：2025-03-13
申请号：US18462611
申请日：2023-09-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Sayed Youssef Sayed NAGY , Diptak Bhattacharya , Caleb Reese , Shaomao Xu , Anil K. Sachdev
Abstract: A method for manufacturing an anode electrode for a battery cell includes providing a current collector; and forming a layer on the current collector to create a coated current collector. The layer includes one of a metal and a metal oxide that is not miscible in molten lithium. The method includes immersing the coated current collector in molten lithium to coat the coated current collector.
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公开(公告)号：US20240368791A1
公开(公告)日：2024-11-07
申请号：US18309902
申请日：2023-05-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mitra SHABANISAMGHABADY , Diptak Bhattacharya , James Joseph Deininger , Caleb Reese , Hassan Ghassemi-Armaki
Abstract: A method for manufacturing a current collector for an electrode of a battery cell includes forming the current collector using a metal 3D printing process; defining L layers of the current collector, where L is an integer greater than zero during the 3D printing of the current collector; and defining a lattice structure in at least one of the L layers of the current collector during the 3D printing of the current collector.
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公开(公告)号：US20240332480A1
公开(公告)日：2024-10-03
申请号：US18130161
申请日：2023-04-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Sayed Youssef Sayed NAGY , Caleb Reese , Shaomao Xu , Diptak Bhattacharya
IPC: H01M4/04
CPC classification number: H01M4/0404 , H01M4/0419 , H01M4/0426 , H01M4/045 , H01M4/0471 , H01M4/0483
Abstract: A method for fabricating an anode electrode includes providing a stainless steel current collector, forming a metal oxide layer on the stainless steel current collector, and pouring molten lithium over the metal oxide layer of the stainless steel current collector to create a lithium metal layer on the metal oxide layer.
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