负极集流体及其制备方法和应用
By combining a three-dimensional porous cross-linked conductive network constructed on the surface of the current collector with lithium/sodium ion conductor additives, the problems of low coulombic efficiency and poor cycle stability of alkali metal batteries were solved, achieving higher battery efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAMEN HITHIUM ENERGY STORAGE TECHNOLOGY CO LTD
- Filing Date
- 2024-04-18
- Publication Date
- 2026-07-17
AI Technical Summary
Alkali metal batteries suffer from low coulombic efficiency and poor cycle stability, which hinders their practical application.
A first functional layer comprising a first functional additive and a first conductive carbon material is provided on at least one side of the current collector body to construct a three-dimensional porous cross-linked conductive network. Combined with zero-dimensional and/or one-dimensional lithium/sodium ion conductor additives, a screening function similar to a 'reverse fishing net' is formed to improve the transport efficiency of lithium/sodium ions and inhibit solvent penetration.
It improves the battery's coulombic efficiency, metal coating density, and capacity retention, solving the problems of low coulombic efficiency and poor cycle stability.
Smart Images
Figure CN118335991B_ABST