公开(公告)号：US20230282803A1

公开(公告)日：2023-09-07

申请号：US18116267

申请日：2023-03-01

申请人： Ian D. Hosein ,  Francielli Genier ,  Shreyas Pathreeker

发明人： Ian D. Hosein ,  Francielli Genier ,  Shreyas Pathreeker

IPC分类号： H01M4/04 ,  H01M10/24 ,  H01M4/583

CPC分类号： H01M4/0471 ,  H01M10/24 ,  H01M4/583

摘要： A process for converting avocado peels into hard carbon-based anodes for sodium ion batteries and a hard carbon material formed according to that process. The avocado peels are simply washed and dried, and then carbonized using a high temperature conversion step. Electrochemical measurements confirmed the applicability of avocado-derived hard carbon as electrode active materials, with high reversible capacities of 320 mAh/g over 50 cycles at 50 mA/g, good rate performance of 86 mAh/g at 3500 mA/g, and Coulombic efficiencies above 99.9% after 500 cycles.