公开(公告)号：US20230197925A1

公开(公告)日：2023-06-22

申请号：US18083929

申请日：2022-12-19

Applicant: Solid Power Operating, Inc.

Inventor： Rose E. RUTHER ,  Ian A. MORRISSEY ,  Kristen T. HIETALA

IPC: H01M4/04 ,  H01M4/38

CPC classification number: H01M4/0435 ,  H01M4/382 ,  H01M2004/021

Abstract: Aspects of the present disclosure relate to prelithiating an electrode of an electrochemical cell to counteract lithium loss as an electrochemical cell is formed and cycled. One implementation may include a method comprising a) providing an electrode composite with lithium-ion conductivity and diffusivity, the electrode composite comprising a silicon-containing material, a carbon-based conductive additive, a solid electrolyte, and a binder; b) disposing a continuous thin layer of lithium proximate to the electrode composite; and c) pressure laminating the continuous thin layer of lithium to the electrode composite. Through the process, lithium is transferred to the solid-state electrode composite by contacting the lithium metal film with the electrode composite without the use of a liquid medium traditionally used to aid in the movement of lithium ions.

公开(公告)号：US20240021798A1

公开(公告)日：2024-01-18

申请号：US18222326

申请日：2023-07-14

Applicant: Solid Power Operating, Inc.

Inventor： Rose E. RUTHER ,  Kristen T. HIETALA ,  Steven MADACHY

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0562 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/04

CPC classification number: H01M4/366 ,  H01M4/386 ,  H01M4/622 ,  H01M10/0562 ,  H01M4/134 ,  H01M4/625 ,  H01M4/1395 ,  H01M4/0404 ,  H01M2004/027

Abstract: Provided herein is a negative electrode or anode for an electrochemical cell having two or more layers. Each layer may include different concentrations of an anode active material to provide improved electrical and physical qualities as compared to a mono-layer anode.

公开(公告)号：US20230216041A1

公开(公告)日：2023-07-06

申请号：US18092166

申请日：2022-12-30

Applicant: Solid Power Operating, Inc.

Inventor： Collin R. BECKER ,  Rose E. RUTHER ,  Kristen T. HIETALA

IPC: H01M4/38 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/386 ,  H01M4/625 ,  H01M4/621 ,  H01M10/0525 ,  H01M2004/027

Abstract: Described herein are composite anode compositions comprising silicon for use in an electrochemical cell. The composite anode compositions described herein include silicon as an anode active material having a particle size, crystallite size, and surface area that provide desired electrochemical properties. Further provided herein are electrochemical cells comprising the anode compositions and methods of making the same.