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：US20190207264A1

公开(公告)日：2019-07-04

申请号：US16257216

申请日：2019-01-25

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

CPC classification number: H01M10/0585

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：US20180166735A1

公开(公告)日：2018-06-14

申请号：US15889338

申请日：2018-02-06

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 ,  H01M10/44 ,  H01M10/0525

CPC classification number: H01M10/02 ,  H01M4/02 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/44 ,  H01M2004/021

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：US20180151920A1

公开(公告)日：2018-05-31

申请号：US15572191

申请日：2016-05-06

Applicant: Enovix Corporation

Inventor： Christopher G. CASTLEDINE ,  David T. FOUCHARD ,  Jonathan C. DOAN ,  Christopher J. SPINDT ,  Robert M. SPOTNIZ ,  James D. WILCOX ,  Ashok LAHIRI ,  Murali RAMASUBRAMANIAN

IPC: H01M10/44 ,  H01M10/0525 ,  H01M4/38 ,  H01M10/48

Abstract: A method is provided for activating a secondary battery having a negative electrode, a positive electrode, and a microporous separator between the negative and positive electrodes permeated with carrier-ion containing electrolyte, the negative electrode having anodically active silicon or an alloy thereof. The method includes transferring carrier ions from the positive electrode to the negative electrode to at least partially charge the secondary battery, and transferring carrier ions from an auxiliary electrode to the positive electrode, to provide the secondary battery with a positive electrode end of discharge voltage Vpos,eod and a negative electrode end of discharge voltage Vneg,eod when the cell is at a predefined Vcell,eod value, the value of Vpos,eod corresponding to a voltage at which the state of charge of the positive electrode is at least 95% of its coulombic capacity and Vneg,eod is at least 0.4 V (vs Li) but less than 0.9 V (vs Li).

公开(公告)号：US20160233486A1

公开(公告)日：2016-08-11

申请号：US15133385

申请日：2016-04-20

Applicant: Enovix Corporation

Inventor： Ashok LAHIRI ,  Robert M. SPOTNITZ ,  Nirav S. SHAH ,  Murali RAMASUBRAMANIAN ,  Harrold J. RUST, III ,  James D. WILCOX ,  Michael J. ARMSTRONG ,  Brian E. BRUSCA ,  Christopher G. CASTLEDINE ,  Laurie J. LAUCHLAN

IPC: H01M4/134 ,  H01M10/0525

CPC classification number: H01M4/134 ,  B82Y30/00 ,  H01G4/008 ,  H01G4/012 ,  H01G4/015 ,  H01G4/32 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/386 ,  H01M4/70 ,  H01M4/80 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0564 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/30 ,  H01M2300/0017 ,  Y02E60/122

Abstract: A structure for use in an energy storage device, the structure comprising a backbone system extending generally perpendicularly from a reference plane, and a population of microstructured anodically active material layers supported by the lateral surfaces of the backbones, each of the microstructured anodically active material layers having a void volume fraction of at least 0.1 and a thickness of at least 1 micrometer.

公开(公告)号：US20220115711A1

公开(公告)日：2022-04-14

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：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：US20190386291A1

公开(公告)日：2019-12-19

申请号：US16554687

申请日：2019-08-29

Applicant: Enovix Corporation

Inventor： Ashok LAHIRI ,  Robert M. SPOTNITZ ,  Nirav S. SHAH ,  Murali RAMASUBRAMANIAN ,  Harrold J. RUST, III ,  James D. WILCOX ,  Michael J. ARMSTRONG ,  Brian E. BRUSCA ,  Christopher G. CASTLEDINE ,  Laurie J. LAUCHLAN

IPC: H01M4/134 ,  H01G4/012 ,  H01G4/015 ,  H01G4/32 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/70 ,  H01M4/80 ,  H01M10/04 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0525 ,  H01M10/0564 ,  H01G4/008

Abstract: A structure for use in an energy storage device, the structure comprising a backbone system extending generally perpendicularly from a reference plane, and a population of microstructured anodically active material layers supported by the lateral surfaces of the backbones, each of the microstructured anodically active material layers having a void volume fraction of at least 0.1 and a thickness of at least 1 micrometer.

公开(公告)号：US20180040876A1

公开(公告)日：2018-02-08

申请号：US15785549

申请日：2017-10-17

Applicant: Enovix Corporation

Inventor： Ashok LAHIRI ,  Robert M. SPOTNITZ ,  Nirav S. SHAH ,  Murali RAMASUBRAMANIAN ,  Harrold J. RUST, III ,  James D. WILCOX ,  Michael J. ARMSTRONG ,  Brian E. BRUSCA ,  Christopher G. CASTLEDINE ,  Laurie J. LAUCHLAN

IPC: H01M4/134 ,  H01G4/012 ,  H01G4/015 ,  H01G4/32 ,  H01M4/1395 ,  H01M10/0564 ,  H01M4/70 ,  H01M4/80 ,  H01M10/04 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0525 ,  H01G4/008 ,  H01M4/38

CPC classification number: H01M4/134 ,  B82Y30/00 ,  H01G4/008 ,  H01G4/012 ,  H01G4/015 ,  H01G4/32 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/386 ,  H01M4/70 ,  H01M4/80 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0564 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/30 ,  H01M2300/0017 ,  Y02E60/122

Abstract: A structure for use in an energy storage device, the structure comprising a backbone system extending generally perpendicularly from a reference plane, and a population of microstructured anodically active material layers supported by the lateral surfaces of the backbones, each of the microstructured anodically active material layers having a void volume fraction of at least 0.1 and a thickness of at least 1 micrometer.