公开(公告)号：US12113200B2

公开(公告)日：2024-10-08

申请号：US17332689

申请日：2021-05-27

申请人： Enevate Corporation

发明人： Younes Ansari ,  Liwen Ji ,  Benjamin Park

IPC分类号： H01M4/133 ,  H01M4/02 ,  H01M4/04 ,  H01M4/134 ,  H01M10/0525

CPC分类号： H01M4/133 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/134 ,  H01M10/0525 ,  H01M2004/027

摘要： Systems and methods for water soluble weak acidic resins as carbon precursors for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and a primary resin carbon precursor; wherein the primary resin carbon precursor comprises a water-soluble acidic polyamide imide functionalized with acidic groups and one or more polymeric stabilizing additives. The electrode coating layer may also include a base and/or a surfactant. The electrode coating layer may be more than 70% silicon.

公开(公告)号：US11978894B2

公开(公告)日：2024-05-07

申请号：US17398786

申请日：2021-08-10

申请人： Enevate Corporation

发明人： Liwen Ji ,  Younes Ansari ,  Sanjaya D. Perera ,  Benjamin Park

IPC分类号： H01M4/36 ,  H01M4/04 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525

CPC分类号： H01M4/386 ,  H01M4/0404 ,  H01M4/622 ,  H01M10/0525

摘要： Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein the anode is a Si-dominant anode that utilizes water-soluble maleic anhydride- and/or maleic acid-containing polymers/co-polymers, derivatives, and/or combinations (with or without additives) as binders.

公开(公告)号：US11876179B2

公开(公告)日：2024-01-16

申请号：US17035222

申请日：2020-09-28

申请人： Enevate Corporation

发明人： Younes Ansari ,  Liwen Ji ,  Benjamin Yong Park

IPC分类号： H01M10/0567 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0569 ,  H01M10/058 ,  H01M10/052

CPC分类号： H01M10/0567 ,  H01M4/134 ,  H01M4/386 ,  H01M10/0569 ,  H01M10/052 ,  H01M10/058 ,  H01M2300/0034 ,  H01M2300/0037 ,  H01M2300/0051

摘要： Electrolytes and electrolyte additives for energy storage devices comprising alkoxyethane based compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte comprising at least two electrolyte co-solvents, wherein at least one electrolyte co-solvent comprises an alkoxyethane based compound.

公开(公告)号：US11387443B1

公开(公告)日：2022-07-12

申请号：US17532739

申请日：2021-11-22

申请人： ENEVATE CORPORATION

发明人： Hong Zhao ,  Younes Ansari ,  Vincent Giordani ,  Mya Le Thai ,  Qing Zhang ,  Benjamin Park

IPC分类号： H01M4/1395 ,  H01M4/134 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/42 ,  H01M4/02

摘要： Silicon-dominate battery electrodes, battery cells utilizing the silicon-dominate battery electrodes, and methods of manufacturing are disclosed. Such a battery cell includes a cathode, a separator, an electrolyte, and an anode. The anode comprises a current collector and active material on the current collector. The active material layer includes at least 50% silicon. A ratio of the electrolyte to Ah is over 2 g/Ah.

公开(公告)号：US20210344013A1

公开(公告)日：2021-11-04

申请号：US16860005

申请日：2020-04-27

申请人： Enevate Corporation

发明人： Liwen JI ,  Younes Ansari ,  Benjamin Park

IPC分类号： H01M4/62 ,  H01M4/131 ,  H01M4/134 ,  H01M4/38 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/058

摘要： Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein one or both electrodes contain a functional lithiated agent-containing additive.

公开(公告)号：US20210194001A1

公开(公告)日：2021-06-24

申请号：US17095343

申请日：2020-11-11

申请人： Enevate Corporation

发明人： Younes Ansari ,  Giulia Canton ,  Frederic Bonhomme ,  Benjamin Park

IPC分类号： H01M4/583 ,  H01M4/04 ,  H01M4/36 ,  H01M4/38

摘要： Systems and methods for multiple carbon precursors for enhanced battery electrode robustness may include an electrode having an active material, the active material including two or more carbon precursor materials, wherein the carbon precursor materials have different pyrolysis temperatures. A battery may include the electrode. The carbon precursor materials may include polyimide (PI) and polyamide-imide (PAI). The active material may be pyrolyzed at a temperature such that a first carbon precursor material is partially pyrolyzed and a second carbon precursor material is completely pyrolyzed. The carbon precursor materials may include two or more of PI, PAI, carboxymethyl cellulose (CMC), styrene-butadiene rubber (SBR), polyacrylonitrile (PAN), and sodium alginate. The active material may include silicon constituting at least 50% of weight of a formed anode after pyrolysis. The active material may include silicon constituting up to 97% of weight of a formed electrode after pyrolysis.

公开(公告)号：US20210175508A1

公开(公告)日：2021-06-10

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： H01M4/62 ,  H01M4/38 ,  H01M4/36

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：US20240178446A1

公开(公告)日：2024-05-30

申请号：US18545573

申请日：2023-12-19

申请人： Enevate Corporation

发明人： Younes Ansari ,  Liwen Ji ,  Jill Renee Pestana ,  Benjamin Park

IPC分类号： H01M10/0565 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525

CPC分类号： H01M10/0565 ,  H01M4/134 ,  H01M4/386 ,  H01M10/0525 ,  H01M2300/0082

摘要： Systems and methods for an ultra-high voltage cobalt-free cathode for alkali ion batteries may include an anode, a cathode, and a separator, with the cathode comprising an active material ANi(1-x)MnxSbOy, where x is a number between 0.0 and 1.0, y is an integer, and A comprises one or more of lithium, sodium, and potassium. The anode may include one or more of an alkali metal, silicon, and carbon. In one example, x is a value in the range between 0.05 and 0.9 and y is a value in the range between 1 and 8 where a specific capacity of the active material is greater than 50 milliamp-hours per gram. In another example, x is a value in the range between 0.4 and 0.6 and y is a value in the range between 1 and 8, where a specific capacity of the active material is greater than 70 milliamp-hours per gram.

公开(公告)号：US11876158B2

公开(公告)日：2024-01-16

申请号：US16452245

申请日：2019-06-25

申请人： Enevate Corporation

发明人： Younes Ansari ,  Liwen Ji ,  Jill Renee Pestana ,  Benjamin Park

IPC分类号： H01M10/04 ,  H01M10/054 ,  H01M4/136 ,  H01M4/04 ,  H01M4/58

CPC分类号： H01M10/049 ,  H01M4/0459 ,  H01M4/136 ,  H01M4/58 ,  H01M10/054 ,  H01M4/0404

摘要： Systems and methods for an ultra-high voltage cobalt-free cathode for alkali ion batteries may include an anode, a cathode, and a separator, with the cathode comprising an active material ANi(1-x)MnxSbOy, where x is a number between 0.0 and 1.0, y is an integer, and A comprises one or more of lithium, sodium, and potassium. The anode may include one or more of an alkali metal, silicon, and carbon. In one example, x is a value in the range between 0.05 and 0.9 and y is a value in the range between 1 and 8 where a specific capacity of the active material is greater than 50 milliamp-hours per gram. In another example, x is a value in the range between 0.4 and 0.6 and y is a value in the range between 1 and 8, where a specific capacity of the active material is greater than 70 milliamp-hours per gram.

公开(公告)号：US11710829B2

公开(公告)日：2023-07-25

申请号：US17339666

申请日：2021-06-04

申请人： Enevate Corporation

发明人： Sanjaya D. Perera ,  Liwen Ji ,  Younes Ansari ,  Benjamin Park

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

CPC分类号： H01M4/621 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/027

摘要： Systems and methods for water based phenolic binders for silicon-dominant anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from silicon and a pyrolyzed water-based phenolic binder. The water-based phenolic binder may include phenolic/resol type polymers crosslinked with poly(methyl vinyl ether-alt-maleic anhydride), poly(methyl vinyl ether-alt-maleic acid), and/or Poly(acrylamide-co-diallyldimethylammonium chloride) (PDADAM). The electrode coating layer may further include conductive additives. The current collector may comprise one or more of a copper, tungsten, stainless steel, and nickel foil in electrical contact with the electrode coating layer. The electrode coating layer may include more than 70% silicon. The electrode may be in electrical and physical contact with an electrolyte, where the electrolyte includes a liquid, solid, or gel. The battery electrode may be in a lithium ion battery.