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Updated: Dec 14, 2025
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Published on: November 11, 2013
A Highly Immobilized Organic Anode Material for High Performance Rechargeable Lithium Batteries
Shengnan Zhang1, Shan Ren1, Dongmei Han1,2
1The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province/State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, China.
Researchers developed a cross-linked organic anode material (X-Li2M@CNTs) for high-capacity lithium batteries. This novel material overcomes solubility issues, offering excellent cycle stability and high reversible capacity for advanced energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Organic conjugated carbonyl materials show promise for high-capacity, green energy storage.
- High solubility in organic electrolytes limits their application in rechargeable batteries.
Purpose of the Study:
- To synthesize a novel, highly cross-linked organic anode material (X-Li2M@CNTs) for rechargeable lithium batteries.
- To enhance electrochemical properties by creating an interpenetrating network with carbon nanotubes (CNTs).
Main Methods:
- Synthesis of an organic terephthalate compound (Li2M) with propargyl groups.
- Hydrothermal treatment to create a highly cross-linked anode material (X-Li2M).
- In situ construction of an interpenetrating network of X-Li2M and CNTs.
Main Results:
- The X-Li2M@CNTs composite anode achieved a reversible capacity of ~200 mAh g-1 at 0.1 C after 200 cycles.
- Excellent cycle stability was observed at 1 C with ~150 mAh g-1 retention after 1000 cycles and near 100% Coulombic efficiency.
- Superior rate capability was demonstrated at 2 C (140 mAh g-1) and 10 C (100 mAh g-1).
Conclusions:
- The study presents a novel approach for immobilizing organic electrode molecules, addressing solubility challenges.
- The developed material offers a promising direction for fabricating high-performance organic batteries.
- Reversible redox reactions of carbonyl groups were confirmed using spectroscopy (FTIR, XPS).
