公开(公告)号：US12095040B2

公开(公告)日：2024-09-17

申请号：US18106689

申请日：2023-02-07

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 ,  Ken S. Matsubayashi ,  Jeremie J. Dalton ,  Jason Newton Howard ,  Robert Keith Rosen

IPC: H01M10/0585 ,  H01M50/40 ,  H01M50/491 ,  H01M50/497 ,  H01M50/531 ,  H01M50/54

CPC classification number: H01M10/0585 ,  H01M50/40 ,  H01M50/491 ,  H01M50/531 ,  H01M50/497 ,  H01M50/54

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：US12087947B2

公开(公告)日：2024-09-10

申请号：US17471499

申请日：2021-09-10

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

CPC classification number: H01M4/525 ,  H01M4/134 ,  H01M4/386 ,  H01M4/483 ,  H01M4/661 ,  H01M4/669 ,  H01M10/0436 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0565 ,  H01M10/0585 ,  H01M50/103 ,  H01M50/46 ,  H01M50/54 ,  H01M2004/027 ,  H01M2004/028

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：US12009488B2

公开(公告)日：2024-06-11

申请号：US18098285

申请日：2023-01-18

Applicant: Enovix Corporation

Inventor： Christopher G. Castledine ,  David T. Fouchard ,  Jonathan C. Doan ,  Christopher J. Spindt ,  Robert M. Spotnitz ,  James D. Wilcox ,  Ashok Lahiri ,  Murali Ramasubramanian

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

CPC classification number: H01M10/448 ,  H01M4/386 ,  H01M10/0525 ,  H01M10/446 ,  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 so 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：US12009473B2

公开(公告)日：2024-06-11

申请号：US18104597

申请日：2023-02-01

Applicant: Enovix Corporation

Inventor： Harrold J. Rust, III ,  Ashok Lahiri ,  Murali Ramasubramanian ,  Robert M. Spotnitz ,  Robert A. Cole ,  Gunther A. Koblmiller ,  Nirav S. Shah ,  Brian E. Brusca ,  Christopher G. Castledine ,  Laurie J. Lauchlan ,  James D. Wilcox

IPC: H01M10/0525 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/525 ,  H01M4/587 ,  H01M4/66 ,  H01M4/70 ,  H01M10/04 ,  H01M10/052 ,  H01M10/058

CPC classification number: H01M10/0525 ,  H01M4/133 ,  H01M4/134 ,  H01M4/386 ,  H01M4/525 ,  H01M4/587 ,  H01M4/667 ,  H01M4/70 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/058

Abstract: An electrode structure for use in an energy storage device comprising a population of electrodes, a population of counter-electrodes and a microporous separator separating members of the electrode population from members of the counter-electrode population. Each member of the electrode population comprises an electrode active material layer and an electrode current conductor layer, and each member of the electrode population has a bottom, a top, a length LE, a width WE and a height HE, wherein the ratio of LE to each of WE and HE is at least 5:1, the ratio of HE to WE is between 0.4:1 and 1000:1, and the electrode current collector layer of each member of the electrode population has a length LC that is measured in the same direction as and is at least 50% of length LE.

公开(公告)号：US11901514B2

公开(公告)日：2024-02-13

申请号：US17363148

申请日：2021-06-30

Applicant: Enovix Corporation

Inventor： Robert S. Busacca ,  Murali Ramasubramanian ,  Bruno A. Valdes ,  James D. Wilcox ,  Christopher J. Spindt ,  Geoffrey Matthew Ho ,  John F. Varni ,  Kim Han Lee ,  Richard J. Contreras ,  Thomas John Schuerlein ,  Ashok Lahiri

IPC: H01M10/058 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/054 ,  H01M50/489 ,  H01M50/491 ,  H01M10/42

CPC classification number: H01M10/058 ,  H01M10/049 ,  H01M10/054 ,  H01M10/0525 ,  H01M50/489 ,  H01M50/491 ,  H01M2010/4292

Abstract: A secondary battery for cycling between a charged and a discharged state is provided. The secondary battery has an electrode assembly having a population of anode structures, a population of cathode structures, and an electrically insulating microporous separator material. The electrode assembly also has a set of electrode constraints that at least partially restrains growth of the electrode assembly. Members of the anode structure population have a first cross-sectional area, A1 when the secondary battery is in the charged state and a second cross-sectional area, A2, when the secondary battery is in the discharged state, and members of the cathode structure population have a first cross-sectional area, C1 when the secondary battery is in the charged state and a second cross-sectional area, C2, when the secondary battery is in the discharged state, where A1 is greater than A2, and C1 is less than C2.

公开(公告)号：US11894512B2

公开(公告)日：2024-02-06

申请号：US17582451

申请日：2022-01-24

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

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

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

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：US20240030569A1

公开(公告)日：2024-01-25

申请号：US18220690

申请日：2023-07-11

Applicant: Enovix Corporation

Inventor： Ashok Lahiri ,  Robert M. Spotnitz

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

CPC classification number: H01M50/581 ,  H01M4/62 ,  H01M4/64 ,  H01M10/4235 ,  H01M10/052 ,  H01M10/058 ,  H01M4/13 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2200/106 ,  H01M2004/021

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：US20230344092A1

公开(公告)日：2023-10-26

申请号：US18316321

申请日：2023-05-12

Applicant: Enovix Corporation

Inventor： Michael J. Armstrong ,  Daniel J. Noelle ,  Robert S. Busacca ,  Bruno A. Valdes ,  Robert K. Rosen ,  Murali Ramasubramanian ,  Ashok Lahiri ,  Robert M. Spotnitz

IPC: H01M50/572 ,  H01M50/531 ,  H01M50/533 ,  H01M10/0525 ,  H01M10/0585 ,  H01M50/583 ,  H01M50/54 ,  H01M50/581 ,  H01M50/536

CPC classification number: H01M50/533 ,  H01M10/0525 ,  H01M10/0585 ,  H01M50/531 ,  H01M50/536 ,  H01M50/54 ,  H01M50/572 ,  H01M50/581 ,  H01M50/583

Abstract: A method includes stacking unit cells in a stacking direction. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, and the counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. The electrode and counter-electrode structures extend in a longitudinal direction perpendicular to the stacking direction, and an end portion of the electrode current collector extends past the electrode active material and the separator structure in the longitudinal direction. The end portion of each electrode current collector is bent in a direction orthogonal to the longitudinal direction, an electrode busbar is positioned extending in the stacking direction with a surface adjacent the end portions, and heat and pressure are applied to the electrode busbar to adhere the end portions to the busbar through an adhesive layer.

公开(公告)号：US11682812B2

公开(公告)日：2023-06-20

申请号：US17657391

申请日：2022-03-31

Applicant: Enovix Corporation

Inventor： Michael J. Armstrong ,  Daniel J. Noelle ,  Robert S. Busacca ,  Bruno A. Valdes ,  Robert K. Rosen ,  Murali Ramasubramanian ,  Ashok Lahiri ,  Robert M. Spotnitz

IPC: H01M50/533 ,  H01M50/54 ,  H01M50/581 ,  H01M50/536 ,  H01M10/0525 ,  H01M10/0585 ,  H01M50/572 ,  H01M50/583 ,  H01M50/531

CPC classification number: H01M50/533 ,  H01M10/0525 ,  H01M10/0585 ,  H01M50/531 ,  H01M50/536 ,  H01M50/54 ,  H01M50/572 ,  H01M50/581 ,  H01M50/583

Abstract: A method includes stacking unit cells in a stacking direction. Each unit cell includes an electrode structure, a separator structure, and a counter-electrode structure. The electrode structure includes an electrode current collector and an electrode active material layer, and the counter-electrode structure includes a counter-electrode current collector and a counter-electrode active material layer. The electrode and counter-electrode structures extend in a longitudinal direction perpendicular to the stacking direction, and an end portion of the electrode current collector extends past the electrode active material and the separator structure in the longitudinal direction. The end portion of each electrode current collector is bent in a direction orthogonal to the longitudinal direction, an electrode busbar is positioned extending in the stacking direction with a surface adjacent the end portions, and heat and pressure are applied to the electrode busbar to adhere the end portions to the busbar through an adhesive layer.

公开(公告)号：US20230178792A1

公开(公告)日：2023-06-08

申请号：US18104597

申请日：2023-02-01

Applicant: Enovix Corporation

Inventor： Harrold J. Rust, III ,  Ashok Lahiri ,  Murali Ramasubramanian ,  Robert M. Spotnitz ,  Robert A. Cole ,  Gunther A. Koblmiller ,  Nirav S. Shah ,  Brian E. Brusca ,  Christopher G. Castledine ,  Laurie J. Lauchlan ,  James D. Wilcox

IPC: H01M10/0525 ,  H01M4/38 ,  H01M4/133 ,  H01M4/134 ,  H01M10/052 ,  H01M10/058 ,  H01M4/66 ,  H01M10/04 ,  H01M4/70 ,  H01M4/525 ,  H01M4/587

CPC classification number: H01M10/0525 ,  H01M4/386 ,  H01M4/133 ,  H01M4/134 ,  H01M10/052 ,  H01M10/058 ,  H01M4/667 ,  H01M10/0436 ,  H01M4/70 ,  H01M4/525 ,  H01M4/587

Abstract: An electrode structure for use in an energy storage device comprising a population of electrodes, a population of counter-electrodes and a microporous separator separating members of the electrode population from members of the counter-electrode population. Each member of the electrode population comprises an electrode active material layer and an electrode current conductor layer, and each member of the electrode population has a bottom, a top, a length LE, a width WE and a height HE, wherein the ratio of LE to each of WE and HE is at least 5:1, the ratio of HE to WE is between 0.4:1 and 1000:1, and the electrode current collector layer of each member of the electrode population has a length LC that is measured in the same direction as and is at least 50% of length LE.