公开(公告)号：US20220336813A1

公开(公告)日：2022-10-20

申请号：US17659302

申请日：2022-04-14

申请人： Applied Materials, Inc.

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

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

摘要： 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：US20190013513A1

公开(公告)日：2019-01-10

申请号：US16067795

申请日：2017-01-04

申请人： Applied Materials, Inc.

发明人： Gao LIU ,  Sergey D. LOPATIN ,  Eric H. LIU ,  Ajey M. JOSHI ,  Guo AI ,  Zhihui WANG ,  Hui ZHAO ,  Donghai WANG

IPC分类号： H01M4/139 ,  H01M4/62 ,  H01M4/04 ,  H01M4/38 ,  H01M4/587 ,  H01M4/36 ,  H01M4/48 ,  H01M10/0525

摘要： A simple solution processing method is developed to achieve uniform and scalable stabilized lithium metal powder coating on Li-ion negative electrode. A solvent and binder system for stabilized lithium metal powder coating is developed, including the selection of solvent, polymer binder and enhancement of polymer concentration. The enhanced binder solution is 1% concentration of polymer binder in xylene, and the polymer binder is chosen as the mixture of poly(styrene-co-butadiene) rubber (SBR) and polystyrene (PS). Long-sustained, uniformly dispersed stabilized lithium metal powder suspension can be achieved with the enhanced binder solution. A uniform stabilized lithium metal powder coating can be achieved with simple doctor blade coating method and the resulting stabilized lithium metal powder coating can firmly glued on the anode surface. With the prelithiation of negative electrode by stabilized lithium metal powder, improvements in electrochemical performances are demonstrated in both graphite/NMC and SiO/NMC full-cell.

公开(公告)号：US20150372286A1

公开(公告)日：2015-12-24

申请号：US14763789

申请日：2014-03-04

申请人： APPLIED MATERIALS, INC.

发明人： Hooman BOLANDI ,  Mahendra C. ORILALL ,  Ajey M. JOSHI ,  Connie P. WANG ,  Robert Z. BACHRACH

IPC分类号： H01M4/04 ,  H01M4/139 ,  B05B5/025 ,  B05B1/06 ,  B05B13/02

CPC分类号： H01M4/0419 ,  B05B1/06 ,  B05B5/001 ,  B05B5/0255 ,  B05B13/0221 ,  G06F16/9535 ,  G06K9/344 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/139

摘要： A method and apparatus for forming battery active material on a substrate are disclosed. In one embodiment, an apparatus for depositing a battery active material on a surface of a substrate includes a substrate conveyor system, the material electrospray dispenser assembly disposed above the substrate conveyor system, and a first heating element disposed adjacent to the material spray assembly above the substrate conveyor system.

摘要翻译： 公开了一种在衬底上形成电池活性材料的方法和装置。 在一个实施例中，用于在基板的表面上沉积电池活性材料的装置包括基板输送系统，设置在基板输送系统上方的材料电喷雾分配器组件以及与材料喷射组件相邻设置的第一加热元件 基板输送系统。