公开(公告)号：US20230133563A1

公开(公告)日：2023-05-04

申请号：US17977938

申请日：2022-10-31

Applicant: Solid Power Operating, Inc.

Inventor： Brandon Kelly ,  A Yang ,  Edward Burch ,  Uday Kasavajjula

IPC: H01M4/40 ,  H01M4/04 ,  H01M4/66

Abstract: An encapsulated electrode for an electrochemical cell and a method for producing an encapsulated electrode. The encapsulated electrode structure has a first solid-state electrolyte composite (SSE) that has a top surface, a bottom surface, and a peripheral surface. Another layer of the encapsulated electrode structure is the electrode that has a top surface, a bottom surface, and a peripheral surface. Yet another layer of the encapsulated electrode structure is a second SSE that has a top surface, a bottom surface, and a peripheral surface. The first SSE is arranged so as to be attached to the electrode, wherein the bottom surface of the first SSE is attached to the top surface of the electrode. The bottom surface of the electrode is attached to the top surface of the second SSE. Pressure is applied to this stack so that the SSEs deform and encapsulate the electrode.

公开(公告)号：US20240120469A1

公开(公告)日：2024-04-11

申请号：US18377255

申请日：2023-10-05

Applicant: Solid Power Operating, Inc.

Inventor： Brandon KELLY ,  Uday Kasavajjula ,  Sikandar Iqbal ,  A Yang

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/66

CPC classification number: H01M4/366 ,  H01M4/0407 ,  H01M4/0435 ,  H01M4/661 ,  H01M2300/0068

Abstract: Aspects involve systems and methods for producing an electrode laminate for a battery that includes a stack of a center electrode layer, a solid-state electrolyte (SSE) layer, and carrier film layer (such as an aluminum foil layer), which is removed prior to use in a cell. To laminate the lithium foil layer to the SSE layers, the stack may be fed through a calender press device comprising a first roller and a second roller. The rollers exert a compressive force on the stack to laminate the layers together while also reducing the porosity of the materials within the stack (densifying), enhancing material contact, causing some layers to adhere or otherwise laminate, and/or also causing some layers to partially separate. The pressure applied to the stack by the calender press may correlate to a spacing between the first roller and the second roller, which may be adjustable by a controller.

公开(公告)号：US20240116287A1

公开(公告)日：2024-04-11

申请号：US18377251

申请日：2023-10-05

Applicant: Solid Power Operating, Inc.

Inventor： Colby Lane ,  A Yang ,  Uday Kasavajjula

IPC: B32B43/00 ,  B32B37/00 ,  H01M10/04 ,  H01M10/058

CPC classification number: B32B43/006 ,  B32B37/025 ,  H01M10/0404 ,  H01M10/058 ,  B32B2457/10

Abstract: A peeling device for manufacturing of an electrode stack includes an upper wedge and a lower wedge between which the electrode stack is fed after a calendering process. A respective lifting roller may be located at the output ends of each of the wedges, which through coordinated action peels the aluminum layers away from the corresponding layer of the electrode stack. The peeling force, exerted by rollers capturing upper and lower aluminum foil sheets of the stack, may be controlled and relatively uniform, thereby enhancing the ability to peel the foil from the stack while not damaging the relatively delicate remaining layers. The aluminum foil is directed away from the stack along an outer planar surface of the respective wedge where the foil can then be wound around the respective rollers.