公开(公告)号：US20240145713A1

公开(公告)日：2024-05-02

申请号：US18546514

申请日：2022-03-30

Applicant: TODA KOGYO CORP.

Inventor： Nobuyuki KOBAYASHI ,  Haruki KUROKAWA

IPC: H01M4/587 ,  H01M4/04 ,  H01M4/36 ,  H01M4/48 ,  H01M10/0525

CPC classification number: H01M4/587 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/483 ,  H01M10/0525 ,  H01M2004/021

Abstract: The purpose of the present invention is to provide a negative electrode material for a lithium ion secondary battery, which is improved in the capacity retention rate. The aspect of the present invention, there is provided silicon-containing amorphous carbon particles comprising an easy-graphitizable amorphous carbon containing silicon oxide particles having a chemical formula represented by SiOx (0