Related Experiment Video
Updated: Aug 1, 2025
11:25
In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
Published on: November 10, 2014
15.8K
High-performance fiber-shaped Li-ion battery enabled by a surface-reinforced self-supporting electrode
Cong Liu1, Yining Lao1, Fan Yang1
1Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Key Laboratory of High-Performance Polymer-based Composites of Guangdong Province, School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. gaofenzi@mail.sysu.edu.cn.
Chemical Communications (Cambridge, England)
|April 28, 2023
Summary
Researchers created a robust fiber electrode using ink-extrusion for flexible batteries. This innovation enables high-performance lithium iron phosphate//lithium titanate fiber full cells with excellent energy density.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Developing self-supporting electrodes is crucial for flexible energy storage devices.
- Traditional fiber electrodes often lack the mechanical stability required for device assembly.
- Improving the structural integrity of fiber electrodes can enhance their electrochemical performance.
Purpose of the Study:
- To develop a surface-reinforced, self-supporting fiber electrode for flexible battery applications.
- To enhance the rigidity and processability of fiber electrodes for subsequent cell assembly.
- To fabricate and characterize fiber LiFePO4//Li4Ti5O12 full cells.
Main Methods:
- Utilizing simple ink-extrusion technology to deposit a thin polymer layer onto the fiber electrode surface.
- Surface reinforcement of the fiber architecture to improve rigidity.
- Fabrication of fiber LiFePO4//Li4Ti5O12 full cells.
Main Results:
- The surface-reinforced fiber electrode exhibited sufficient rigidity for fiber cell assembly.
- The fabricated fiber LiFePO4//Li4Ti5O12 full cells demonstrated high linear capacity output (0.144 mA h cm-1).
- The fiber cells achieved a notable energy density of 0.267 mW h cm-1.
Conclusions:
- The ink-extrusion method provides an effective strategy for creating robust, self-supporting fiber electrodes.
- Surface reinforcement significantly improves the structural integrity and suitability for flexible cell fabrication.
- The developed fiber electrodes are promising for high-performance flexible energy storage applications.
