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：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.

公开(公告)号：US12206106B2

公开(公告)日：2025-01-21

申请号：US17674133

申请日：2022-02-17

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: H01M4/525 ,  H01M4/02 ,  H01M4/134 ,  H01M4/38 ,  H01M4/48 ,  H01M4/66 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0565 ,  H01M10/0585 ,  H01M50/103 ,  H01M50/46 ,  H01M50/54

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：US20240170714A1

公开(公告)日：2024-05-23

申请号：US18531197

申请日：2023-12-06

Applicant: Enovix Corporation

Inventor： Robert S. Busacca ,  Ashok Lahiri ,  Murali S. 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

IPC: H01M10/04 ,  H01M10/0525 ,  H01M50/446 ,  H01M50/491 ,  H01M4/02 ,  H01M50/414 ,  H01M50/417 ,  H01M50/426 ,  H01M50/497 ,  H01M50/55 ,  H01M50/553

CPC classification number: H01M10/0468 ,  H01M10/0525 ,  H01M50/446 ,  H01M50/491 ,  H01M2004/021 ,  H01M50/414 ,  H01M50/417 ,  H01M50/426 ,  H01M50/497 ,  H01M50/55 ,  H01M50/553

Abstract: A energy storage device for cycling between a charged state and a discharged state, the energy storage device including an enclosure, an electrode assembly and a non-aqueous liquid electrolyte within the enclosure, and a constraint that maintains a pressure on the electrode assembly as the energy storage device is cycled between the charged and the discharged states.

公开(公告)号：US20230411792A1

公开(公告)日：2023-12-21

申请号：US18252422

申请日：2021-11-17

Applicant: ENOVIX Corporation

Inventor： Jeremie J. Dalton ,  Robert S. Busacca ,  Ashok Lahiri ,  Murali Ramasubramanian ,  Bruno A. Valdes ,  Kim Han Lee ,  Anthony Calcaterra ,  Benjamin L. Cardozo

IPC: H01M50/474 ,  H01M10/0585 ,  H01M50/477 ,  H01M4/13 ,  H01M50/46 ,  H01M50/48 ,  H01M50/586 ,  H01M50/593 ,  H01M50/595 ,  H01M50/463

CPC classification number: H01M50/474 ,  H01M10/0585 ,  H01M50/477 ,  H01M4/13 ,  H01M50/46 ,  H01M50/48 ,  H01M50/586 ,  H01M50/593 ,  H01M50/595 ,  H01M50/463

Abstract: A battery includes an electrode assembly. The electrode assembly has a population of unit cells, each unit cell including 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. The electrode layer has an electrode active material, and the counter-electrode layer has a counter-electrode active material. One of the electrode active material and the counter-electrode material is a cathodically active material and the other of the electrode active material and the counter-electrode material is an anodically active material. A subset of the unit cell population includes a pair of spacer members located between the electrode current collector layer and the counter-electrode current collector layer. At least a portion of the counter-electrode active material is located between the spacer members in a common plane defined by the x and z axes.

公开(公告)号：US11811047B2

公开(公告)日：2023-11-07

申请号：US17933924

申请日：2022-09-21

Applicant: Enovix Corporation

Inventor： Harrold J. Rust, III ,  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 ,  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：US11444310B2

公开(公告)日：2022-09-13

申请号：US17335725

申请日：2021-06-01

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 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/44

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.