公开(公告)号：US12132192B2

公开(公告)日：2024-10-29

申请号：US18114697

申请日：2023-02-27

申请人： Enevate Corporation

发明人： Fred Bonhomme ,  Benjamin Park ,  Kirk Shockley ,  Giulia Canton ,  David J. Lee

IPC分类号： H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/02

CPC分类号： H01M4/0471 ,  H01M4/0404 ,  H01M4/0409 ,  H01M4/0435 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M2004/027

摘要： Systems and methods are provided for high volume roll-to-roll direct coating of electrodes for silicon-dominant anode cells. A slurry that includes silicon particles and a binder material may be applied to a current collector film, and the slurry may be processed to form a precursor composite film coated on the current collector film. The current collector film with the coated precursor composite film may be rolled into a precursor composite roll. A heat treatment may be applied to the current collector film with the coated precursor composite film in an environment including nitrogen gas, to convert the coated precursor composite film to a pyrolyzed composite film coated on the current collector film. The heat treatment may include applying the heat treatment to the precursor composite roll in whole and/or applying the heat treatment to the current collector film with the coated precursor composite film as it is continuously fed.

公开(公告)号：US12087949B2

公开(公告)日：2024-09-10

申请号：US16682938

申请日：2019-11-13

申请人： Enevate Corporation

发明人： Rahul Kamath ,  Frederic Bonhomme ,  Qian Huang ,  Heidi Anderson ,  Ian Browne ,  David J. Lee ,  Sanjaya Perera ,  Younes Ansari

IPC分类号： H01M4/62 ,  H01M4/04 ,  H01M4/36 ,  H01M4/38

CPC分类号： H01M4/62 ,  H01M4/0404 ,  H01M4/366 ,  H01M4/386

摘要： Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein sacrificial salts and prelithiation reagents are added to the cathode as functional additives for electrochemical prelithiation.

公开(公告)号：US11133498B2

公开(公告)日：2021-09-28

申请号：US15995002

申请日：2018-05-31

申请人： Enevate Corporation

发明人： David J. Lee ,  Xiaohua Liu ,  Monika Chhorng ,  Jeff Swoyer ,  Benjamin Yong Park ,  Rahul R. Kamath

IPC分类号： H01M4/36 ,  H01M4/133 ,  H01M4/134 ,  H01M4/66 ,  H01M4/587 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/02 ,  H01M4/04

摘要： In some embodiments, an electrode can include a current collector, a composite material in electrical communication with the current collector, and at least one phase configured to adhere the composite material to the current collector. The current collector can include one or more layers of metal, and the composite material can include electrochemically active material. The at least one phase can include a compound of the metal and the electrochemically active material. In some embodiments, a composite material can include electrochemically active material. The composite material can also include at least one phase configured to bind electrochemically active particles of the electrochemically active material together. The at least one phase can include a compound of metal and the electrochemically active material.

公开(公告)号：US11043676B1

公开(公告)日：2021-06-22

申请号：US16705085

申请日：2019-12-05

申请人： Enevate Corporation

发明人： Younes Ansari ,  Uday Kasavajjula ,  Benjamin Park ,  Monika Chhorng ,  Ambica Nair ,  Sanjaya Perera ,  David J. Lee

IPC分类号： H01M4/38 ,  H01M4/62 ,  H01M4/36 ,  H01M4/02

摘要： Systems and methods for silosilazanes, silosiloxanes, and siloxanes as additives for silicon-dominant anodes in a battery that may include a cathode, an electrolyte, and an anode active material. The active material may comprise 50% or more silicon as well as an additive including one or more of: silosilazane, silicon oxycarbides, and polyorganosiloxane. The silosilazane may comprise one or more amine groups, silanols, silyl ethers, sylil chlorides, dialkylamoinosilanes, silyl hydrides, and cyclic azasilanes. The active material may comprise a film with a thickness between 10 and 80 microns. The film may have a conductivity of 1 S/cm or more. The active material may comprise between 50% and 95% silicon. The active material may be held together by a pyrolyzed carbon film. The anode may comprise lithium, sodium, potassium, silicon, and/or mixtures and combinations thereof. The battery may comprise a lithium ion battery. The electrolyte may comprise a liquid, solid, or gel.

公开(公告)号：US20210143393A1

公开(公告)日：2021-05-13

申请号：US16681597

申请日：2019-11-12

申请人： ENEVATE CORPORATION

发明人： Qian Huang ,  Benjamin Park ,  Ian Browne ,  Rahul Kamath ,  David J. Lee

IPC分类号： H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0562

摘要： Systems and methods are provided for heat treatment of whole cell structures. A battery may be formed based on applying of heat treatment to a whole cell composition that includes, at least, both anode material and cathode material, such that the anode material and the cathode material are heat treated at the same time. The heat treatment may include pyrolysis. The whole cell composition, and the corresponding cell formed based thereon, may include solid state electrolyte.

公开(公告)号：US20210104737A1

公开(公告)日：2021-04-08

申请号：US16590859

申请日：2019-10-02

申请人： ENEVATE CORPORATION

发明人： Shiang Jen Teng ,  Xiaohua Liu ,  David J. Lee ,  Tracy Ho ,  Mai Vietnam ,  Benjamin Yong Park ,  Frederic Bonhomme

IPC分类号： H01M4/36 ,  H01M4/38 ,  H01M4/04

摘要： The present application describes a method of forming an energy storage device that directly adds a lithium layer (such as a lithium foil or otherwise deposited lithium) into the cell stack during cell assembly for prelithiating. The method includes providing a silicon-based anode, providing a cathode, positioning a separator between the anode and the cathode, and disposing a lithium layer between the silicon-based anode and the separator, such that the lithium layer is in contact with the anode.

公开(公告)号：US20200303768A1

公开(公告)日：2020-09-24

申请号：US16897543

申请日：2020-06-10

申请人： Enevate Corporation

发明人： Xiaohua Liu ,  Giulia Canton ,  David J. Lee ,  Shiang Teng ,  Benjamin Yong Park

IPC分类号： H01M10/0525 ,  H01M4/583 ,  H01M4/38 ,  H01M4/134 ,  H01M4/62 ,  H01M4/66 ,  H01M4/36 ,  H01M4/04 ,  H01M4/74 ,  H01M4/1395

摘要： In some embodiments, an electrode can include a first and second conductive layer. At least one of the first and second conductive layers can include porosity configured to allow electrolyte to flow therethrough. The electrode can also include an electrochemically active layer having electrochemically active material sandwiched between the first and second conductive layers. The electrochemically active layer can be in electrical communication with the first and second conductive layers.

公开(公告)号：US11901500B2

公开(公告)日：2024-02-13

申请号：US16897543

申请日：2020-06-10

申请人： Enevate Corporation

发明人： Xiaohua Liu ,  Giulia Canton ,  David J. Lee ,  Shiang Teng ,  Benjamin Yong Park

IPC分类号： H01M10/0525 ,  H01M4/583 ,  H01M4/38 ,  H01M4/134 ,  H01M4/62 ,  H01M4/66 ,  H01M4/36 ,  H01M4/04 ,  H01M4/74 ,  H01M4/1395 ,  H01M4/02

CPC分类号： H01M10/0525 ,  H01M4/0404 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/386 ,  H01M4/583 ,  H01M4/625 ,  H01M4/661 ,  H01M4/74 ,  H01M4/742 ,  H01M2004/027 ,  H01M2004/028

摘要： In some embodiments, an electrode can include a first and second conductive layer. At least one of the first and second conductive layers can include porosity configured to allow electrolyte to flow therethrough. The electrode can also include an electrochemically active layer having electrochemically active material sandwiched between the first and second conductive layers. The electrochemically active layer can be in electrical communication with the first and second conductive layers.

公开(公告)号：US11764350B2

公开(公告)日：2023-09-19

申请号：US16845521

申请日：2020-04-10

申请人： Enevate Corporation

发明人： Giulia Canton ,  Benjamin Park ,  Fred Bonhomme ,  David J. Lee ,  Ian Browne

IPC分类号： H01M4/134 ,  H01M4/1395 ,  H01M4/74 ,  H01M10/0525 ,  H01M4/66 ,  H01M4/04

CPC分类号： H01M4/134 ,  H01M4/0435 ,  H01M4/1395 ,  H01M4/661 ,  H01M4/745 ,  H01M10/0525

摘要： Systems and methods for anisotropic expansion of silicon-dominant anodes may include a cathode, an electrolyte, and an anode, where the anode may include a current collector and an active material on the current collector. An expansion of the anode during operation may be configured by a thickness of the current collector. The expansion of the anode may be more anisotropic for thicker current collectors. A thicker current collector may be 10 μm thick or greater. The expansion of the anode may be more anisotropic for more rigid materials used for the current collector. A more rigid current collector may include nickel and a less rigid current collector may include copper. The expansion of the anode may be more anisotropic for a rougher surface current collector.

公开(公告)号：US11728468B2

公开(公告)日：2023-08-15

申请号：US16845693

申请日：2020-04-10

申请人： Enevate Corporation

发明人： Giulia Canton ,  Benjamin Park ,  Fred Bonhomme ,  David J. Lee ,  Ian Browne

IPC分类号： H01M4/134 ,  H01M4/1395 ,  H01M4/74 ,  H01M10/0525 ,  H01M4/66 ,  H01M4/04

CPC分类号： H01M4/134 ,  H01M4/0435 ,  H01M4/1395 ,  H01M4/661 ,  H01M4/745 ,  H01M10/0525

摘要： Systems and methods for anisotropic expansion of silicon-dominant anodes may include a cathode, an electrolyte, and an anode, where the anode may include a current collector and an active material on the current collector. An expansion of the anode during operation may be configured by a metal used for the current collector, and/or a lamination process that adheres the active material to the current collector. The expansion of the anode may be more anisotropic for thicker current collectors. A thicker current collector may be 10 μm thick or greater. The expansion of the anode may be more anisotropic for more rigid materials used for the current collector. A more rigid current collector may include nickel and a less rigid current collector may include copper. The expansion of the anode may be more anisotropic for a rougher surface current collector.