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一种复合硅碳负极材料及其制备方法和锂离子电池

InventionUnknown
10Claims · 3 independent
§ Ⅰ

Dossier Overview

Inventor

张君; 胥李志; 王勇升

Filing Date

Sep 18, 2026

Publication Date

Oct 27, 2026

IPC Classification

H01M 4/62 (2006.01)H01M 4/38 (2006.01)H01M 4/04 (2006.01)H01M 10/0525 (2010.01)H01M 4/02 (2006.01)

本发明提供了一种复合硅碳负极材料及其制备方法和锂离子电池,属于锂离子电池技术领域,包括:内部具有多级连通孔道的多孔碳基体;原位生长于多级连通孔道内壁且通过共价键与多孔碳基体锚定的二维导电层;限域沉积于多级连通孔道内且与二维导电层形成共价界面的硅基活性物质;连续包覆于二维导电层、硅基活性物质及孔道内壁的快离子导体薄膜;包覆于多孔碳基体外表面的导电碳包覆层。本申请构建了电子‑离子双连续传输网络,消除了内部导电孤岛,显著提升了循环稳定性与快充性能。

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