公开(公告)号：US20240356042A1

公开(公告)日：2024-10-24

申请号：US18645297

申请日：2024-04-24

申请人： Solid Power Operating, Inc.

发明人： Haitao HUANG ,  Ian A. MORRISSEY ,  Levi SCHUTT ,  Pu ZHANG

IPC分类号： H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38

CPC分类号： H01M4/628 ,  H01M4/0404 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/382 ,  H01M2004/021

摘要： Provided herein are compositions for solid-state electrochemical cells that include a first layer and a second layer which meet at an interface. Each layer includes a binder, wherein the binder concentration forms a continuous gradient across the interface. Further provided herein are methods of making the compositions.

公开(公告)号：US20230197925A1

公开(公告)日：2023-06-22

申请号：US18083929

申请日：2022-12-19

申请人： Solid Power Operating, Inc.

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

IPC分类号： H01M4/04 ,  H01M4/38

CPC分类号： H01M4/0435 ,  H01M4/382 ,  H01M2004/021

摘要： 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.