公开(公告)号：US20250149642A1

公开(公告)日：2025-05-08

申请号：US18952252

申请日：2024-11-19

Applicant: Enovix Corporation

Inventor： Robert S. BUSACCA ,  Ashok LAHIRI ,  Murali RAMASUBRAMANIAN ,  Bruno A. VALDES ,  Gardner Cameron DALES ,  Harrold J. RUST, III ,  John F. VARNI ,  Kim Han LEE ,  Nirav S. SHAH ,  Richard J. CONTRERAS ,  Jeremie J. DALTON ,  Jonathan C. DOAN ,  Michael J. ARMSTRONG ,  Anthony CALCATERRA ,  Benjamin J. CARDOZO ,  Joshua David WINANS ,  Neelam SINGH ,  Jeffrey Glenn BUCK ,  Thomas John SCHUERLEIN ,  Kim Lester FORTUNATI ,  Neal SARSWAT

IPC: H01M10/0585 ,  H01M10/0525

Abstract: Embodiments of a method for the preparation of an electrode assembly, include removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population in a stacking direction to form a stacked population of unit cells.

公开(公告)号：US20220093903A1

公开(公告)日：2022-03-24

申请号：US17481697

申请日：2021-09-22

Applicant: Enovix Corporation

Inventor： Harrold J. RUST ,  Murali RAMASUBRAMANIAN ,  Ashok LAHIRI ,  Bruno A. VALDES ,  Jeffrey Glenn BUCK ,  Kim Lester FORTUNATI ,  Robert S. BUSACCA ,  John F. VARNI ,  Joshua David WINANS ,  Neal SARSWAT ,  Gunther A. KOBLMILLER ,  Miles E. BEAVEN ,  Jeffrey A. MOSS ,  Michael E. ANDRES

IPC: H01M4/04 ,  H01M4/139

Abstract: A process for delineating a population of electrode structures in a web is disclosed. The web has a down-web direction, a cross-web direction, an electrochemically active layer, and an electrically conductive layer. The process includes laser machining the web in at least the cross-web direction to delineate members of the electrode structure population in the web without releasing the delineated members from the web and forming an alignment feature in the web that is adapted for locating each delineated member of the electrode structure population in the web.

公开(公告)号：US20200313146A1

公开(公告)日：2020-10-01

申请号：US16763110

申请日：2018-11-15

Applicant: Enovix Corporation

Inventor： Robert S. BUSACCA ,  Ashok LAHIRI ,  Murali RAMASUBRAMANIAN ,  Bruno A. VALDES ,  Gardner Cameron DALES ,  Christopher J. SPINDT ,  Geoffrey Matthew HO ,  Harrold J. RUST, III ,  James D. WILCOX ,  John F. VARNI ,  Kim Han LEE ,  Nirav S. SHAH ,  Richard J. CONTRERAS ,  Lynn VAN ERDEN ,  Ken S. MATSUBAYASHI ,  Jeremie J. DALTON ,  Jason Newton HOWARD ,  Robert Keith ROSEN ,  Jonathan C. DOAN ,  Michael J. ARMSTRONG ,  Anthony CALCATERRA ,  Benjamin L. CARDOZO ,  Joshua David WINANS ,  Neelam SINGH ,  Jeffrey Glenn BUCK ,  Thomas John SCHUERLEIN ,  Kim Lester FORTUNATI ,  Neal SARSWAT

IPC: H01M2/26 ,  H01M10/0525 ,  H01M4/48 ,  H01M4/66 ,  H01M4/525 ,  H01M2/16 ,  H01M4/38 ,  H01M4/134 ,  H01M10/0565

Abstract: Embodiments of secondary batteries having electrode assemblies are provided. A secondary battery can comprise an electrode assembly having a stacked series of layers, the stacked series of layers having an offset between electrode and counter-electrode layers in a unit cell member of the stacked series. A set of constraints can be provided with a primary constraint system with first and second primary growth constraints separated from each other in a longitudinal direction, and connected by at least one primary connecting member, and a secondary constraint system comprises first and second secondary growth constraints separated in a second direction and connected by members of the stacked series of layers. The primary constraint system may at least partially restrain growth of the electrode assembly in the longitudinal direction, and the secondary constraint system may at least partially restrain growth in the second direction that is orthogonal to the longitudinal direction.

公开(公告)号：US20200212493A1

公开(公告)日：2020-07-02

申请号：US16533082

申请日：2019-08-06

Applicant: Enovix Corporation

Inventor： Robert S. BUSACCA ,  Ashok LAHIRI ,  Murali RAMASUBRAMANIAN ,  Bruno A. VALDES ,  Gardner Cameron DALES ,  Harrold J. RUST, III ,  John F. VARNI ,  Kim Han LEE ,  Nirav S. SHAH ,  Richard J. CONTRERAS ,  Jeremie J. DALTON ,  Jonathan C. DOAN ,  Michael J. ARMSTRONG ,  Anthony CALCATERRA ,  Benjamin J. CARDOZO ,  Joshua David WINANS ,  Neelam SINGH ,  Jeffrey Glenn BUCK ,  Thomas John SCHUERLEIN ,  Kim Lester FORTUNATI ,  Neal SARSWAT

IPC: H01M10/0585 ,  H01M10/0525

Abstract: Embodiments of a method for the preparation of an electrode assembly, include removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population in a stacking direction to form a stacked population of unit cells.

公开(公告)号：US20220123370A1

公开(公告)日：2022-04-21

申请号：US17562228

申请日：2021-12-27

Applicant: Enovix Corporation

Inventor： Robert S. BUSACCA ,  Ashok LAHIRI ,  Murali RAMASUBRAMANIAN ,  Bruno A. VALDES ,  Gardner Cameron DALES ,  Harrold J. RUST, III ,  John F. VARNI ,  Kim Han LEE ,  Nirav S. SHAH ,  Richard J. CONTRERAS ,  Jeremie J. DALTON ,  Jonathan C. DOAN ,  Michael J. ARMSTRONG ,  Anthony CALCATERRA ,  Benjamin J. CARDOZO ,  Joshua David WINANS ,  Neelam SINGH ,  Jeffrey Glenn BUCK ,  Thomas John SCHUERLEIN ,  Kim Lester FORTUNATI ,  Neal SARSWAT

IPC: H01M10/0585 ,  H01M10/0525

Abstract: Embodiments of a method for the preparation of an electrode assembly, include removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population in a stacking direction to form a stacked population of unit cells.

公开(公告)号：US20220115753A1

公开(公告)日：2022-04-14

申请号：US17471499

申请日：2021-10-19

Applicant: Enovix Corporation

Inventor： Robert S. BUSACCA ,  Ashok LAHIRI ,  Murali RAMASUBRAMANIAN ,  Bruno A. VALDES ,  Gardner Cameron DALES ,  Christopher J. SPINDT ,  Geoffrey Matthew HO ,  Harrold J. RUST, III ,  James D. WILCOX ,  John F. VARNI ,  Kim Han LEE ,  Nirav S. SHAH ,  Richard J. CONTRERAS ,  Lynn VAN ERDEN ,  Ken S. MATSUBAYASHI ,  Jeremie J. DALTON ,  Jason Newton HOWARD ,  Robert Keith ROSEN ,  Jonathan C. DOAN ,  Michael J. ARMSTRONG ,  Anthony CALCATERRA ,  Benjamin L. CARDOZO ,  Joshua David WINANS ,  Neelam SINGH ,  Jeffrey Glenn BUCK ,  Thomas John SCHUERLEIN ,  Kim Lester FORTUNATI ,  Neal SARSWAT

IPC: H01M50/54 ,  H01M4/134 ,  H01M4/38 ,  H01M4/48 ,  H01M4/525 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/04 ,  H01M10/054 ,  H01M10/0585 ,  H01M50/46 ,  H01M50/103

Abstract: Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.

公开(公告)号：US20200350633A1

公开(公告)日：2020-11-05

申请号：US16763078

申请日：2018-11-15

Applicant: Enovix Corporation

Inventor： Robert S. BUSACCA ,  Ashok LAHIRI ,  Murali RAMASUBRAMANIAN ,  Bruno A. VALDES ,  Gardner Cameron DALES ,  Christopher J. SPINDT ,  Geoffrey Matthew HO ,  Harrold J. RUST, III ,  James D. WILCOX ,  John F. VARNI ,  Kim Han LEE ,  Nirav S. SHAH ,  Richard J. CONTRERAS ,  Lynn VAN ERDEN ,  Ken S. MATSUBAYASHI ,  Jeremie J. DALTON ,  Jason Newton HOWARD ,  Robert Keith ROSEN ,  Jonathan C. DOAN ,  Michael J. ARMSTRONG ,  Anthony CALCATERRA ,  Benjamin L. CARDOZO ,  Joshua David WINANS ,  Neelam SINGH ,  Jeffrey Glenn BUCK ,  Thomas John SCHUERLEIN ,  Kim Lester FORTUNATI ,  Neal SARSWAT

IPC: H01M10/0585 ,  H01M2/02 ,  H01M2/26 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/054

Abstract: Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.