公开(公告)号：US12224422B2

公开(公告)日：2025-02-11

申请号：US17530496

申请日：2021-11-19

Applicant: Nano and Advanced Materials Institute Limited

Inventor： Soon Yee Liew ,  Yong Zhu ,  Yam Chong ,  Yu Tat Tse ,  Kevin Tan ,  Shengbo Lu ,  Li Fu ,  Chenmin Liu

IPC: H01M4/04 ,  H01M4/139 ,  H01M4/58 ,  H01M4/587 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525

Abstract: A solventless method of making a dry electrode for an electrochemical cell is provided. A solventless electrode material mixture includes 85-99% electrode active material and from 0-10% conductive carbon additive. A polymer binder system is present from 1-15%. The polymer binder system includes one or more polymer binders. The electrode material mixture is mixed at a temperature greater than a softening point or a melting point of at least one polymer binder of the polymer binder system. The electrode material mixture is kneaded into an electrode material dough. The electrode material dough is formed into an electrode material sheet. At least a portion of the electrode material sheet is affixed to a metal current collector to form an electrode.