公开(公告)号：US20220336813A1

公开(公告)日：2022-10-20

申请号：US17659302

申请日：2022-04-14

Applicant: Applied Materials, Inc.

Inventor： SUBRAMANYA P. HERLE ,  Gao LIU ,  Jie GUAN ,  James CUSHING ,  Ajey M. JOSHI ,  Tianyu ZHU ,  Chen FANG ,  Thanh-Nhan TRAN

IPC: H01M4/62 ,  H01M4/134 ,  H01M4/133 ,  H01M4/04 ,  C08G73/10

Abstract: Polyimide binders and their polyamic precursors to be used for forming electrode structures are provided. The designed polyamic binder precursors are water-soluble, and the resulting polyimide binders are mechanically strong, electrochemically and thermally stable. The properties of polyimide binders have led to significant improvement in electrode compatibility towards new manufactural processes.

公开(公告)号：US20220328803A1

公开(公告)日：2022-10-13

申请号：US17658347

申请日：2022-04-07

Applicant: Applied Materials, Inc.

Inventor： SUBRAMANYA P. HERLE ,  Girish Kumar Gopalakrishnan Nair ,  Daniel Stock ,  Sambhu Kundu ,  Ezhiylmurugan Rangasamy

IPC: H01M4/04 ,  H01M4/38 ,  H01M4/1395

Abstract: A method and apparatus for fabricating electrodes used in energy storage devices are provided. In some implementations a surface of the electrode is activated for (a) a pre-treatment process to remove loosely held particles from the electrode surface; (b) a pre-treatment process to activate the surface of the electrode material for improved bonding or wetting for subsequently deposited materials; (c) a post-treatment of the pre-lithiation layer to improve subsequent bonding with additionally deposited layer, for example, passivation layers; and/or (d) a post-treatment of the pre-lithiation layer to improve/accelerate absorption of the lithium into the underlying electrode material.