公开(公告)号：US20240105955A1

公开(公告)日：2024-03-28

申请号：US18528614

申请日：2023-12-04

Applicant: Tesla, Inc.

Inventor： Hieu Minh Duong ,  Haim Feigenbaum ,  Jian Hong

IPC: H01M4/62 ,  H01G9/042 ,  H01G9/15 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/623 ,  H01G9/0425 ,  H01G9/15 ,  H01M4/0435 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0525 ,  H01M4/131

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.

公开(公告)号：US11876230B2

公开(公告)日：2024-01-16

申请号：US16939616

申请日：2020-07-27

Applicant: Tesla, Inc.

Inventor： Hieu Minh Duong ,  Haim Feigenbaum ,  Jian Hong

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

CPC classification number: H01M4/623 ,  H01G9/0425 ,  H01G9/15 ,  H01M4/0435 ,  H01M4/622 ,  H01M4/625 ,  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. Methods of fabricating the anode and/or the cathode of the energy storage device are also disclosed.