公开(公告)号：US20240154128A1

公开(公告)日：2024-05-09

申请号：US18495106

申请日：2023-10-26

Applicant: Tesla, Inc.

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

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/583 ,  H01M10/0525

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/622 ,  H01M10/0525 ,  C08L1/286

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：US11811066B2

公开(公告)日：2023-11-07

申请号：US18054838

申请日：2022-11-11

Applicant: Tesla, Inc.

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

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/583 ,  C08L1/28 ,  C08L27/16 ,  C08L27/18

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/1393 ,  H01M4/583 ,  H01M4/622 ,  H01M10/0525 ,  C08L1/286 ,  C08L27/16 ,  C08L27/18 ,  C08L2203/20 ,  Y02E60/10

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：US11777070B2

公开(公告)日：2023-10-03

申请号：US17043598

申请日：2019-05-13

Applicant: Tesla, Inc.

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

IPC: H01M4/04 ,  H01G11/28 ,  H01G11/42 ,  H01G11/46 ,  H01G11/50 ,  H01M4/1391 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M4/0402 ,  H01G11/28 ,  H01G11/42 ,  H01G11/46 ,  H01G11/50 ,  H01M4/1391 ,  H01M4/623 ,  H01M2004/021

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：US20240258043A1

公开(公告)日：2024-08-01

申请号：US18633328

申请日：2024-04-11

Applicant: Tesla, Inc.

Inventor： Joon Ho Shin ,  Hieu Minh Duong

IPC: H01G11/86 ,  H01G11/04 ,  H01G11/26 ,  H01G11/28 ,  H01G11/38 ,  H01G11/50 ,  H01M4/04 ,  H01M4/136 ,  H01M4/36 ,  H01M4/38 ,  H01M10/04

CPC classification number: H01G11/86 ,  H01G11/04 ,  H01G11/26 ,  H01G11/28 ,  H01G11/38 ,  H01M4/043 ,  H01M4/136 ,  H01M4/366 ,  H01M4/38 ,  H01M10/04 ,  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：US20230411584A1

公开(公告)日：2023-12-21

申请号：US18454625

申请日：2023-08-23

Applicant: Tesla, Inc.

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

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

CPC classification number: H01M4/0402 ,  H01G11/28 ,  H01G11/42 ,  H01G11/46 ,  H01G11/50 ,  H01M4/1391 ,  H01M4/623 ,  H01M2004/021

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：US11757093B2

公开(公告)日：2023-09-12

申请号：US16831484

申请日：2020-03-26

Applicant: Tesla, Inc.

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

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

CPC classification number: H01M4/366 ,  H01G11/28 ,  H01G11/38 ,  H01M4/621 ,  H01M4/8896

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.