公开(公告)号：US20230420643A1

公开(公告)日：2023-12-28

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 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86 ,  H01M4/13 ,  H01M4/38 ,  H01M10/0525 ,  H01M4/04

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

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：US20210234173A1

公开(公告)日：2021-07-29

申请号：US17227110

申请日：2021-04-09

Applicant: Maxwell Technologies, Inc.

Inventor： Ziying Wang ,  Haim Feigenbaum ,  Hieu Minh Duong

IPC: H01M4/62 ,  H01M4/96 ,  H01M10/0564 ,  H01G11/86 ,  H01G11/28 ,  H01G11/34 ,  H01M4/04 ,  H01M4/139

Abstract: Materials and methods for preparing electrode film mixtures and electrode films including reduced damage bulk active materials are provided. In a first aspect, a method for preparing an electrode film mixture for an energy storage device is provided, comprising providing an initial binder mixture comprising a first binder and a first active material, processing the initial binder mixture under high shear to form a secondary binder mixture, and nondestructively mixing the secondary binder mixture with a second portion of active materials to form an electrode film mixture.

公开(公告)号：US20200176759A1

公开(公告)日：2020-06-04

申请号：US16665430

申请日：2019-10-28

Applicant: Maxwell Technologies, Inc.

Inventor： Hieu Minh Duong ,  Porter Mitchell ,  Mohammed-Yazid Saidi

IPC: H01M4/36 ,  H01M4/1395 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/134 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/587 ,  H01M4/38 ,  H01G11/86 ,  H01G11/52 ,  H01G11/50 ,  H01G11/42

Abstract: An energy storage device can include a first electrode, a second electrode and a separator between the first electrode and the second electrode wherein the first electrode or the second electrode includes elemental lithium metal and carbon particles. A method for fabricating an energy storage device can include forming a first electrode and a second electrode, and inserting a separator between the first electrode and the second electrode, where forming the first electrode or the second electrode can include combining elemental lithium metal and a plurality of carbon particles.

公开(公告)号：US20190237748A1

公开(公告)日：2019-08-01

申请号：US16184892

申请日：2018-11-08

Applicant: Maxwell Technologies, Inc.

Inventor： Joon Ho Shin ,  Hieu Minh Duong ,  Haim Feigenbaum

IPC: H01M4/131 ,  H01M4/133 ,  H01M4/62 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/131 ,  C01G53/04 ,  C08L1/00 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/525 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: Provided herein are energy storage devices comprising at least one dry process, self-supporting electrode film having improved performance. The improved performance may be realized as improved electrode material loading, improved active material loading, improved active material density, improved areal capacity, improved specific capacity, improved areal energy density, improved energy density, improved specific energy density, or improved Coulombic efficiency.

公开(公告)号：US20210075055A1

公开(公告)日：2021-03-11

申请号：US17099588

申请日：2020-11-16

Applicant: Maxwell Technologies, Inc.

Inventor： Hieu Minh Duong ,  Porter Mitchell ,  Mohammed-Yazid Saidi ,  Joon Ho Shin ,  Haim Feigenbaum

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

Abstract: An energy storage device can include a first electrode, a second electrode and a separator between the first electrode and the second electrode wherein the first electrode includes an electrochemically active material and a porous carbon material, and the second electrode includes elemental lithium metal and carbon particles. A method for fabricating an energy storage device can include forming a first electrode and a second electrode, and inserting a separator between the first electrode and the second electrode, where forming the first electrode includes combining an electrochemically active material and a porous carbon material, and forming the second electrode includes combining elemental lithium metal and a plurality of carbon particles.

公开(公告)号：US20200152967A1

公开(公告)日：2020-05-14

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 ,  H01M4/13 ,  H01G11/26 ,  H01G11/52 ,  H01G11/86

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：US20190139714A1

公开(公告)日：2019-05-09

申请号：US16176420

申请日：2018-10-31

Applicant: Maxwell Technologies, Inc.

Inventor： Joon Ho Shin ,  Hieu Minh Duong

IPC: H01G11/86 ,  H01M4/36 ,  H01M4/38 ,  H01M4/04 ,  H01G11/28 ,  H01G11/38 ,  H01G11/50

Abstract: Provided herein are energy storage device electrode films comprising multiple active layers, and methods of forming such multiple active layer energy storage device electrode films. Each active layer may be a self-supporting active layer comprising a binder and an active material. The binder and/or active material may be the same or different as any other active layer. The active layers may be stacked to form an electrode film, and the electrode film may be laminated with a current collector to form an electrode.

公开(公告)号：US20220238858A1

公开(公告)日：2022-07-28

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

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：US20220006071A1

公开(公告)日：2022-01-06

申请号：US17291491

申请日：2019-11-07

Applicant: Maxwell Technologies, Inc.

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

IPC: H01M4/139 ,  H01M10/0565 ,  H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M10/04 ,  H01M10/0525

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, the electrode and/or the separator can comprise a salt, improved porosity, increased density, be prelithiated, and/or a foam. Process and apparatuses used for fabricating the electrode and/or electrode film are also described.

公开(公告)号：US10741843B2

公开(公告)日：2020-08-11

申请号：US14690153

申请日：2015-04-17

Applicant: MAXWELL TECHNOLOGIES, INC.

Inventor： Hieu Minh Duong ,  Haim Feigenbaum ,  Jian Hong

IPC: H01M4/62 ,  H01G9/042 ,  H01G9/15 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/587

Abstract: An energy storage device can include a cathode and an anode, where at least one of the cathode and the anode are made of a polytetrafluoroethylene (PTFE) composite binder material including PTFE and at least one of polyvinylidene fluoride (PVDF), a PVDF co-polymer, and poly(ethylene oxide) (PEO). The energy storage device can be a lithium ion battery, a lithium ion capacitor, and/or any other lithium based energy storage device. The PTFE composite binder material can have a ratio of about 1:1 of PTFE to a non-PTFE component, such a PVDF, PVDF co-polymer and/or PEO.