公开(公告)号：US20190305316A1

公开(公告)日：2019-10-03

申请号：US16366220

申请日：2019-03-27

Applicant: Maxwell Technologies, Inc.

Inventor： Ziying Wang ,  Hieu Minh Duong ,  Yudi Yudi ,  Joon Ho Shin ,  Prince Magsino

IPC: H01M4/62 ,  H01M10/0525

Abstract: Provided herein are dry process electrode films, and energy storage devices incorporating the same, including a microparticulate non-fibrillizable binder having certain particle sizes. The electrode films exhibit improved mechanical and processing characteristics. Also provided are methods for processing such microparticulate non-fibrillizable electrode film binders, and for incorporating the microparticulate non-fibrillizable binders in electrode films.

公开(公告)号：US11799069B2

公开(公告)日：2023-10-24

申请号：US17717510

申请日：2022-04-11

Applicant: Maxwell Technologies, Inc.

Inventor： Hieu Minh Duong ,  Yudi Yudi ,  Ziying Wang ,  Joon Ho Shin

IPC: H01M4/139 ,  H01M4/04 ,  H01M4/38 ,  H01M10/0525 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86 ,  H01M4/13 ,  H01M4/02

CPC classification number: H01M4/139 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/38 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2220/20

Abstract: Methods for manufacturing intermittently coated dry electrodes for energy storage devices and energy storage devices including the intermittently coated dry electrodes are disclosed. In one embodiment, the method includes providing a metal layer and providing an electrochemically active free-standing film formed of a dry active material. The method also includes combining the electrochemically active free-standing film and the metal layer to form a combined layer. The method further includes removing a portion of the electrochemically active free-standing film from the combined layer so that the electrochemically active free-standing film is intermittently formed on the metal layer in a longitudinal direction of the metal layer.

公开(公告)号：US20200313175A1

公开(公告)日：2020-10-01

申请号：US16831484

申请日：2020-03-26

Applicant: Maxwell Technologies, Inc.

Inventor： Joon Ho Shin ,  Hieu Minh Duong ,  Amado Marcelino Garcia Acevedo

IPC: H01M4/36 ,  H01G11/28 ,  H01G11/38 ,  H01M4/62 ,  H01M4/88

Abstract: Provided herein are energy storage device electrode films comprising a hybrid electrode film, and methods of forming such multilayer hybrid electrode films and energy storage devices comprising multilayer hybrid electrode films. Each hybrid electrode film may comprise a self-supporting dry coated active layer and a wet cast active layer, wherein each active layer comprises a binder and an active material. The binder and/or active material may be the same or different as any other active layer. The hybrid multilayer electrode film may further comprise at least one additional layer, and the hybrid multilayer electrode film may be laminated with a current collector to form an electrode.

公开(公告)号：US20190157722A1

公开(公告)日：2019-05-23

申请号：US16191823

申请日：2018-11-15

Applicant: Maxwell Technologies, Inc.

Inventor： Joon Ho Shin ,  Hieu Minh Duong ,  Wilma Wong

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/525 ,  H01M4/505

Abstract: Provided herein are improved electrolyte formulations. The improved performance may be realized as improved discharge rate cycling, improved capacity, improved Coulombic efficiency, or improved capacity upon cycling.

公开(公告)号：US12126009B2

公开(公告)日：2024-10-22

申请号：US18465801

申请日：2023-09-12

Applicant: Maxwell Technologies, Inc.

Inventor： Hieu Minh Duong ,  Yudi Yudi ,  Ziying Wang ,  Joon Ho Shin

IPC: H01M4/139 ,  B32B37/00 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86 ,  H01M4/04 ,  H01M4/13 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/139 ,  B32B37/00 ,  B32B37/0053 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86 ,  H01M4/0404 ,  H01M4/13 ,  H01M4/38 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2220/20

Abstract: Proposed are methods for manufacturing intermittently coated dry electrodes for energy storage devices and energy storage devices including the intermittently coated dry electrodes. In one embodiment, the method includes providing a metal layer and providing an electrochemically active free-standing film formed of a dry active material. The method also includes combining the electrochemically active free-standing film and the metal layer to form a combined layer. The method further includes removing a portion of the electrochemically active free-standing film from the combined layer so that the electrochemically active free-standing film is intermittently formed on the metal layer in a longitudinal direction of the metal layer.

公开(公告)号：US11367864B2

公开(公告)日：2022-06-21

申请号：US16675012

申请日：2019-11-05

Applicant: Maxwell Technologies, Inc.

Inventor： Hieu Minh Duong ,  Yudi Yudi ,  Ziying Wang ,  Joon Ho Shin

IPC: H01M4/139 ,  H01M4/04 ,  H01M4/38 ,  H01M10/0525 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86 ,  H01M4/13 ,  H01M4/02

Abstract: Methods for manufacturing intermittently coated dry electrodes for energy storage devices and energy storage devices including the intermittently coated dry electrodes are disclosed. In one embodiment, the method includes providing a metal layer and providing an electrochemically active free-standing film formed of a dry active material. The method also includes combining the electrochemically active free-standing film and the metal layer to form a combined layer. The method further includes removing a portion of the electrochemically active free-standing film from the combined layer so that the electrochemically active free-standing film is intermittently formed on the metal layer in a longitudinal direction of the metal layer.

公开(公告)号：US20210098770A1

公开(公告)日：2021-04-01

申请号：US17043598

申请日：2019-05-13

Applicant: Maxwell Technologies, Inc.

Inventor： Yudi Yudi ,  Hieu Minh Duong ,  Joon Ho Shin

IPC: H01M4/04 ,  H01G11/50 ,  H01G11/42 ,  H01G11/46 ,  H01G11/28 ,  H01M4/1391 ,  H01M4/62

Abstract: Materials and methods for preparing dry cathode electrode film including reduced binder content are described. The cathode electrode film may be a self-supporting film including a single binder. The binder loading may be 3 weight % or less. In a first aspect, a method for preparing a dry free standing electrode film for an energy storage device is provided, comprising nondestructively mixing a cathode active material, a porous carbon, and optionally a conductive carbon to form an active material mixture, adding a single fibrillizable binder to the active material mixture, nondestructively mixing to form an electrode film mixture, and calendering the electrode film mixture to form a free standing electrode film.

公开(公告)号：US20200313193A1

公开(公告)日：2020-10-01

申请号：US16831352

申请日：2020-03-26

Applicant: Maxwell Technologies, Inc.

Inventor： Joon Ho Shin ,  Hieu Minh Duong

IPC: H01M4/62 ,  H01M4/137 ,  H01M4/60 ,  H01M4/139

Abstract: Provided herein are dry process electrode films, and energy storage devices incorporating the same, including an elastic polymer binder. In some embodiments, the dry process electrode films are PTFE-free or comprise an insubstantial amount of PTFE. The electrode films exhibit improved mechanical and processing characteristics. Also provided are methods for processing such elastic polymer binders, and for incorporating the elastic polymer binders in electrode films.

公开(公告)号：US20200259180A1

公开(公告)日：2020-08-13

申请号：US16742569

申请日：2020-01-14

Applicant: Maxwell Technologies, Inc.

Inventor： Joon Ho Shin ,  Hieu Minh Duong ,  Vicente Tapia

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/36 ,  H01M10/0525

Abstract: Provided herein are multilayer dry films for electrode film fabrication, and electrode films, electrodes, and energy storage devices that implement the multilayer dry films. The multilayer dry film for electrode film fabrication comprises a dry free-standing active layer comprising a first dry active material and a first dry binder, and a dry prelithiating layer comprising lithium, such that the first dry free-standing active layer and the dry prelithiating layer are laminated to each other to form a free-standing multilayer dry film.

公开(公告)号：US20200227723A1

公开(公告)日：2020-07-16

申请号：US16742021

申请日：2020-01-14

Applicant: Maxwell Technologies, Inc.

Inventor： Ziying Wang ,  Hieu Minh Duong

IPC: H01M4/04 ,  H01M4/62 ,  H01M4/139 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/38

Abstract: An energy storage device can include a cathode, an anode, and a separator between the cathode and the anode. At least one of the electrodes can include an electrode film prepared by a dry process. The electrode film and/or the electrode can comprise a prelithiating material. Processes and apparatuses used for fabricating the electrode and/or electrode film are also described.