一种硼化钽钛 / MXenes双金属硼化物异质结材料及其制备方法和应用
By preparing tantalum titanium boride/MXenes bimetallic boride heterojunction materials through a stepwise calcination method, the problems of poor conductivity and lithium polysulfide shuttle effect in lithium-sulfur batteries were solved, achieving efficient material immobilization and improved electrochemical performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG UNIV OF TECH
- Filing Date
- 2024-09-08
- Publication Date
- 2026-07-17
AI Technical Summary
In existing lithium-sulfur batteries, the active materials sulfur and lithium sulfide have poor conductivity and exhibit significant volume expansion during charge-discharge cycles. The shuttle effect of lithium polysulfides has not been effectively resolved, resulting in limited battery performance.
A stepwise calcination method was used to prepare tantalum titanium boride/MXenes bimetallic boride heterojunction materials. By using MXenes as a conductive substrate and combining the synergistic effect of different metals, elemental sulfur was fixed, the generation of lithium polysulfides was suppressed, and the conductivity and catalytic performance of the electrode materials were improved.
It effectively suppressed the shuttle effect in lithium-sulfur batteries, improved the conductivity and catalytic performance of electrode materials, enhanced electrochemical performance, reduced reaction temperature, and simplified the preparation process.
Smart Images
Figure CN119390082B_ABST