公开(公告)号：WO2022240485A1

公开(公告)日：2022-11-17

申请号：PCT/US2022/021800

申请日：2022-03-24

Applicant: ENEVATE CORPORATION

Inventor： PARK, Benjamin ,  PESTANA, Jill ,  BROWNE, Ian ,  ANSARI, Younes ,  PERERA, Sanjaya D.

IPC: H01M4/04 ,  H01M4/36 ,  H01M4/66 ,  H01M4/38 ,  H01M4/134 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M4/0404 ,  H01M4/0423 ,  H01M4/0428 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M4/662

Abstract: A method and system for carbon-coated silicon in a pyrolyzed carbon binder electrode on copper current collectors may include providing a metal current collector; forming a non-porous carbon coating on the metal current collector; coating silicon particles with carbon; forming an active material layer on the metal current collector, where the active material layer comprises at least 50% silicon particles by weight and a carbon source; and pyrolyzing the active material layer on the metal current collector, with no silicon particles in contact with metal from the metal current collector. The metal current collector may include copper. The battery anode may include no copper-silicon eutectic. The silicon particles may range in size from 2 to 50 μm. The active material layer may include aluminum carbide. A source for the pyrolyzed carbon may include polyimide and/or polyamide-imide. The current collector may be coated with the non-porous carbon coating using physical vapor deposition.

公开(公告)号：WO2021126565A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/063449

申请日：2020-12-04

Applicant: ENEVATE CORPORATION

Inventor： ANSARI, Younes ,  CHANG, Jeremy ,  PARK, Benjamin

IPC: H01M4/133 ,  H01M4/1393 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0566 ,  H01M4/134 ,  H01M4/505 ,  H01M4/525 ,  H01M4/663

Abstract: Systems and methods for carbon compositions as conductive additives for dense and conductive cathodes may include a cathode, an electrolyte, and a cathode active material. The active material may comprise an anode, an electrolyte, and a cathode comprising an active material. The active material may comprise 0D conductive carbon particles with nanoscale structure in three dimensions, and 1D conductive carbon particles with nanoscale structure in two dimensions, where the 1D carbon particles have a diameter of less than 120 nm and a surface area of 30 m2/g. The 0D and 1D particles may comprise between 1% and 10% of the active material. The 1D conductive carbon particles may comprise carbon nanotubes, carbon nanofibers, and/or vapor grown carbon fibers. The cathode active material may comprise nickel cobalt aluminum oxide (NCA), nickel cobalt manganese oxide, lithium iron phosphate, lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, or mixtures and combinations thereof.

公开(公告)号：WO2023282999A1

公开(公告)日：2023-01-12

申请号：PCT/US2022/031789

申请日：2022-06-01

Applicant: ENEVATE CORPORATION

Inventor： ANSARI, Younes ,  JI, Liwen ,  ANDERSON, Heidi ,  PARK, Benjamin ,  GIORDANI, Vincent

IPC: H01M4/60

Abstract: Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, where prelithiation reagents are utilized to treat one or more of the anode and cathode. In one embodiment, the prelithiation reagent is a Li-organic complex solution comprising naphthalene and metallic lithium dissolved in an inhibitor-free THF.

公开(公告)号：WO2022241096A1

公开(公告)日：2022-11-17

申请号：PCT/US2022/028957

申请日：2022-05-12

Applicant: ENEVATE CORPORATION

Inventor： ANSARI, Younes ,  PARK, Benjamin Yong ,  PERERA, Sanjaya D. ,  DANG, Xuan-Dung ,  CHOI, Sung Won

IPC: H01M10/052 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/1395 ,  H01M2004/027 ,  H01M2004/028 ,  H01M4/505 ,  H01M4/525 ,  H01M50/403 ,  H01M50/461

Abstract: Systems and methods are provided for configuring cell performance using specific anode, cathode, and separator combinations. Separators with significant adhesive properties may be used in forming rechargeable cells, such as lithium-ion cells. The separator with significant adhesive properties may include an adhesive coating, applied on one or both sides of the separator, and/or adhesive material is dissolved or deposited within the separator. The separators with significant adhesive properties may also include one or more ceramic layers.

公开(公告)号：WO2021158366A1

公开(公告)日：2021-08-12

申请号：PCT/US2021/014166

申请日：2021-01-20

Applicant: ENEVATE CORPORATION

Inventor： JI, Liwen ,  PARK, Benjamin Yong ,  ANSARI, Younes ,  ZHAO, Hong

IPC: H01M10/0569

Abstract: Electrolytes and electrolyte additives for energy storage devices comprising cyanate 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 a cyanate based compound.

公开(公告)号：WO2021126567A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/063464

申请日：2020-12-04

Applicant: ENEVATE CORPORATION

Inventor： ANSARI, Younes ,  PARK, Benjamin ,  JI, Liwen ,  PESTANA, Jill Renee

IPC: H01M10/0565 ,  C08F283/06 ,  H01M2/14 ,  H01M10/0525 ,  H01M10/058 ,  C08L2203/20 ,  C08L2205/02 ,  C08L71/02 ,  H01M2004/027 ,  H01M2300/0082 ,  H01M2300/0091 ,  H01M4/386

Abstract: Systems and methods are provided for synthesizing solid-state polymer electrolyte and/or using solid-state polymer electrolyte in production of all-solid-state alkali-ion batteries.

公开(公告)号：WO2022010670A1

公开(公告)日：2022-01-13

申请号：PCT/US2021/039124

申请日：2021-06-25

Applicant: ENEVATE CORPORATION

Inventor： PERERA, Sanjaya D. ,  JI, Liwen ,  ANSARI, Younes ,  PARK, Benjamin

IPC: H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/027 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/386 ,  H01M4/621 ,  H01M4/625 ,  H01M4/626 ,  H01M4/661 ,  E60

Abstract: 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

公开(公告)号：WO2021096708A1

公开(公告)日：2021-05-20

申请号：PCT/US2020/058324

申请日：2020-10-30

Applicant: ENEVATE CORPORATION

Inventor： KAMATH, Rahul ,  BONHOMME, Frederic ,  HUANG, Qian ,  ANDERSON, Heidi ,  BROWNE, Ian ,  LEE, David J. ,  PERERA, Sanjaya ,  ANSARI, Younes

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M4/13

Abstract: 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：WO2021091772A1

公开(公告)日：2021-05-14

申请号：PCT/US2020/058057

申请日：2020-10-29

Applicant: ENEVATE CORPORATION

Inventor： ANSARI, Younes ,  NAIR, Ambica ,  PARK, Benjamin

IPC: H01M4/02 ,  H01M4/74 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/446 ,  H01M2004/027 ,  H01M2004/028 ,  H01M4/0447 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/386 ,  H01M4/742 ,  E60

Abstract: Systems and methods for use of perforated anodes in silicon-dominant anode cells may include a cathode, an electrolyte, and an anode, where the cathode and anode each comprise an active material on a current collector. One or both of the current collector and active material may be perforated. For example, the current collector may be perforated and/or both the current collector and active material may be perforated. The battery may comprise a stack of anodes and cathodes. Each cathode of the stack may be perforated and/or each anode of the stack may be perforated. Each cathode of the stack may comprise two layers of active material on each side of the cathode where a first of the two layers of active material may be for prelithiation of anodes of the battery. A second of the two layers may be for lithium cycling of the battery.

公开(公告)号：WO2020264086A1

公开(公告)日：2020-12-30

申请号：PCT/US2020/039509

申请日：2020-06-25

Applicant: ENEVATE CORPORATION

Inventor： ANSARI, Younes ,  JI, Liwen ,  PESTANA, Jill Renee ,  PARK, Benjamin

IPC: H01M4/485 ,  H01M4/48 ,  H01M4/36 ,  H01M4/02 ,  H01M10/052

Abstract: 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.