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：US20250105443A1

公开(公告)日：2025-03-27

申请号：US18957442

申请日：2024-11-22

Applicant: Enovix Corporation

Inventor： Robert S. BUSACCA ,  Aditya Mandalam ,  Jeffrey G. Buck ,  Anthony Calcaterra ,  Kim Han Lee ,  Prajanya Sunil Kendrekar

IPC: H01M50/403 ,  H01M50/449 ,  H01M50/569

Abstract: A secondary battery includes an electrode assembly disposed within a constraint. The electrode assembly comprises a population of unit cells comprising an electrode current collector layer, an electrode layer, a separator layer, a counter-electrode layer, and a counter-electrode current collector layer in stacked succession. A subset of the unit cell population includes extended spacer members between the electrode current collector layer and the counter-electrode current collector layer. One of the spacer members is spaced in a transverse direction from the other extended spacer member, at least a portion of the counter-electrode active material of the counter-electrode layer being located between the spacer members such that the portion of the counter-electrode active material and the spacer members lie in a common plane defined by x and z axes, wherein each of the extended spacer members extend a distance SD in the x-axis direction beyond an x-axis edge of the constraint.

公开(公告)号：US12249739B2

公开(公告)日：2025-03-11

申请号：US18220690

申请日：2023-07-11

Applicant: Enovix Corporation

Inventor： Ashok Lahiri ,  Robert M. Spotnitz

IPC: H01M50/581 ,  H01M4/13 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/64 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/42 ,  H01M4/02 ,  H01M50/574 ,  H01M50/583

Abstract: Various three-dimensional battery structures are disclosed, in certain embodiments comprising a battery enclosure and a first plurality of electrodes within the enclosure. The first plurality of electrodes includes a plurality of cathodes and a plurality of anodes. The first plurality of electrodes includes a second plurality of electrodes selected from the first plurality of electrodes. The three-dimensional battery includes a first structural layer within the battery enclosure. Each of the second plurality of electrodes protrudes from the first structural layer. The three-dimensional battery includes a plurality of electrical current-reducing devices within the enclosure. Each of the second plurality of electrodes is coupled to one of the plurality of current-reducing devices.

公开(公告)号：US12244036B2

公开(公告)日：2025-03-04

申请号：US17832184

申请日：2022-06-03

Applicant: Enovix Corporation

Inventor： Murali Ramasubramanian ,  Michael Armstrong ,  Brian E. Brusca ,  Vladimir Dioumaev ,  Gunther A. Koblmiller ,  Ashok Lahiri ,  Laurie J. Lauchlan ,  Harrold J. Rust, III ,  Nirav S. Shah ,  Robert M. Spotnitz ,  James D. Wilcox

IPC: H01M50/446 ,  H01M4/13 ,  H01M4/134 ,  H01M4/38 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0585 ,  H01M50/44 ,  H01M50/46 ,  H01M4/02 ,  H01M50/403

Abstract: An electrode structure for use in an energy storage device, the electrode structure comprising a population of electrodes, a population of counter-electrodes and an electrically insulating material layer separating members of the electrode population from members of the counter-electrode population, each member of the electrode population having a longitudinal axis AE that is surrounded by the electrically insulating separator layer.

公开(公告)号：US20250054941A1

公开(公告)日：2025-02-13

申请号：US18804438

申请日：2024-08-14

Applicant: Enovix Corporation

Inventor： Harrold J. Rust, III ,  Murali S. 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 ,  Jeffery A. Moss ,  Michael T. Andres

IPC: H01M4/04 ,  H01M4/139

Abstract: A process for delineating a population of electrode structures in a web includes laser ablating the web to form ablations in the web, each ablation being formed by removing a portion of an electrochemically active layer to thereby expose a portion of an electrically conductive layer. The process includes forming alignment features in the web that are formed at predetermined locations on the web. The process also includes laser machining the web to form weakened tear patterns in the web that delineate members of the electrode structure population, each of the delineated members being individually bounded, at least in part, by a member of the weakened tear patterns that is adapted to facilitate separation of delineated members, individually, from the web by an application of a force, the alignment features being used to aid in the formation of the weakened tear patterns.

公开(公告)号：US12095072B2

公开(公告)日：2024-09-17

申请号：US18373809

申请日：2023-09-27

Applicant: Enovix Corporation

Inventor： Harrold J. Rust, III ,  Murali S. 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 ,  Jeffery A. Moss ,  Michael T. Andres

IPC: H01M4/04 ,  H01M4/139

CPC classification number: H01M4/0469 ,  H01M4/139

Abstract: A process for delineating a population of electrode structures in a web includes laser ablating the web to form ablations in the web, each ablation being formed by removing a portion of an electrochemically active layer to thereby expose a portion of an electrically conductive layer. The process includes forming alignment features in the web that are formed at predetermined locations on the web. The process also includes laser machining the web to form weakened tear patterns in the web that delineate members of the electrode structure population, each of the delineated members being individually bounded, at least in part, by a member of the weakened tear patterns that is adapted to facilitate separation of delineated members, individually, from the web by an application of a force, the alignment features being used to aid in the formation of the weakened tear patterns.

公开(公告)号：US11777174B1

公开(公告)日：2023-10-03

申请号：US17977728

申请日：2022-10-31

Applicant: Enovix Corporation

Inventor： William H. Chandler, Jr. ,  Robert S. Busacca ,  Bruno A. Valdes ,  Kim Han Lee ,  Anthony Calcaterra ,  Miles A. M. Kool ,  Robert Kinchen

IPC: H01M50/403 ,  H01M50/204 ,  H01M50/289

CPC classification number: H01M50/403 ,  H01M50/204 ,  H01M50/289

Abstract: A method for manufacturing a structure comprising and electrode assembly having a porous electrically insulating material, and first and second endplates, is provided. The electrode assembly comprises a population of unit cells stacked in series in a stacking direction, opposing first and second longitudinal end surfaces separated along the stacking direction. First and second endplates are separated in the stacking direction and overlie the first and second longitudinal end surfaces. According to embodiments of the structure, (i) each unit cell comprises an electrode structure, a counter-electrode structure, and an electrically insulating separator between the electrode and counter-electrode structures, (ii) the electrode structures, counter-electrode structures and electrically insulating separators within each unit cell have opposing first and second vertical end surfaces separated in a vertical direction, and (iii) the vertical direction is orthogonal to the stacking direction. The method comprises providing a porous electrically insulating material to the electrode assembly using a stencil.

公开(公告)号：US11600864B2

公开(公告)日：2023-03-07

申请号：US17556152

申请日：2021-12-20

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

IPC: H01M10/0585 ,  H01M50/40 ,  H01M50/531

Abstract: A secondary battery for cycling between a charged and a discharged state, wherein a 2D map of the median vertical position of the first opposing vertical end surface of the electrode active material in the X-Z plane, along the length LE of the electrode active material layer, traces a first vertical end surface plot, EVP1, a 2D map of the median vertical position of the first opposing vertical end surface of the counter-electrode active material layer in the X-Z plane, along the length LC of the counter-electrode active material layer, traces a first vertical end surface plot, CEVP1, wherein for at least 60% of the length Lc of the first counter-electrode active material layer (i) the absolute value of a separation distance, SZ1, between the plots EVP1 and CEVP1 measured in the vertical direction is 1000 μm≥|SZ1|≥5 μm.

公开(公告)号：US11355816B2

公开(公告)日：2022-06-07

申请号：US16917020

申请日：2020-06-30

Applicant: Enovix Corporation

Inventor： Murali Ramasubramanian ,  Michael Armstrong ,  Brian E. Brusca ,  Vladimir Dioumaev ,  Gunther A. Koblmiller ,  Ashok Lahiri ,  Laurie J. Lauchlan ,  Harrold J. Rust, III ,  Nirav S. Shah ,  Robert M. Spotnitz ,  James D. Wilcox

IPC: H01M4/134 ,  H01M4/38 ,  H01M10/04 ,  H01M50/446 ,  H01M4/13 ,  H01M10/052 ,  H01M10/0585 ,  H01M50/44 ,  H01M50/46 ,  H01M4/02 ,  H01M50/403

Abstract: An electrode structure for use in an energy storage device, the electrode structure comprising a population of electrodes, a population of counter-electrodes and an electrically insulating material layer separating members of the electrode population from members of the counter-electrode population, each member of the electrode population having a longitudinal axis AE that is surrounded by the electrically insulating separator layer.

公开(公告)号：US11081718B2

公开(公告)日：2021-08-03

申请号：US16241159

申请日：2019-01-07

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 ,  Vladimir Dioumaev

IPC: H01M10/02 ,  H01M4/02 ,  H01M10/052 ,  H01M10/054 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/44 ,  H01M10/0525

Abstract: A secondary battery is provided for cycling between a charged and a discharged state, the secondary battery including a battery enclosure, an electrode assembly, carrier ions, a non-aqueous liquid electrolyte within the battery enclosure, and a set of electrode constraints. The set of electrode constraints includes a primary constraint system having first and second primary growth constraints and at least one primary connecting member, the first and second primary growth constraints separated from each other in the longitudinal direction, wherein the primary constraint array restrains growth of the electrode assembly in the longitudinal direction such that any increase in the Feret diameter of the electrode assembly in the longitudinal direction over 20 consecutive cycles of the secondary battery is less than 20%. The set of electrode constraints further includes a secondary constraint system having first and second secondary growth constraints connected by at least one secondary connecting member, wherein the secondary constraint system at least partially restrains growth of the electrode assembly in a second direction upon cycling of the secondary battery.