公开(公告)号：US20240347688A1

公开(公告)日：2024-10-17

申请号：US18751967

申请日：2024-06-24

Applicant: Applied Materials, Inc.

Inventor： Subramanya P. HERLE ,  Girish Kumar GOPALAKRISHNAN NAIR ,  Daniel STOCK ,  Sambhu Nath KUNDU ,  Ezhiylmurugan RANGASAMY

IPC: H01M4/04 ,  B05D3/04 ,  B05D3/14 ,  B05D5/12 ,  H01M4/1395 ,  H01M4/38

CPC classification number: H01M4/0492 ,  H01M4/0404 ,  H01M4/1395 ,  H01M4/382 ,  B05D3/044 ,  B05D3/142 ,  B05D5/12

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.

公开(公告)号：US20240014371A1

公开(公告)日：2024-01-11

申请号：US18199749

申请日：2023-05-19

Applicant: Applied Materials, Inc.

Inventor： PrasannaKalleshwara Buddappa RAMACHANDRAPPA ,  Sambhu Nath KUNDU ,  Visweswaren SIVARAMAKRISHNAN ,  Subramanya P. HERLE

IPC: H01M4/04

CPC classification number: H01M4/0435 ,  H01M4/0471 ,  H01M4/0485 ,  H01M2004/027

Abstract: Embodiments of the present disclosure generally relate to battery technology, and more specifically, methods and systems for preparing lithium anodes. In one or more embodiments, a method for producing a lithium intercalated anode includes introducing a sacrificial substrate containing lithium films and an anode substrate containing graphite into a processing region within a chamber. The method also includes combining the sacrificial and anode substrates overlapping one another around a rewinder roller, rotating the rewinder roller to wind the sacrificial and anode substrates together to produce a rolled anode-sacrificial substrate bundle during a winding process. The method also includes heating the sacrificial substrate, the anode substrate, and/or the rolled anode-sacrificial substrate bundle while rotating the rewinder roller and applying a force to the rolled anode-sacrificial substrate bundle via an idle roller during the winding process.