Related Experiment Video
Updated: Jul 17, 2025
05:33
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
21.7K
Gradient Lithium Metal Infusion in Ag-Decorated Carbon Fibers for High-Capacity Lithium Metal Battery Anodes
Kyungeun Baek1, Wang-Geun Lee1, Eunmi Im1,2
1Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
Nano Letters
|September 5, 2023
Summary
Researchers developed a gradient-infused lithium metal anode using silver-decorated carbonized cellulose fibers. This novel 3D current collector improves cycling stability and reduces volume expansion in high-energy lithium batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Lithium (Li) metal anodes offer high specific capacity for energy-dense Li batteries.
- Challenges include uneven Li deposition, leading to volume expansion and safety issues.
Purpose of the Study:
- To investigate a gradient-infused Li-metal anode using a novel 3D current collector.
- To enhance cycling stability and mitigate volume expansion in Li-metal batteries.
Main Methods:
- Fabrication of a 3D current collector with silver-decorated carbonized cellulose fibers (Ag@CC).
- Control of Li metal loading via thermal infusion time of molten Li.
- Electrochemical performance testing of the gradient-infused anode with a high-capacity cathode.
Main Results:
- A 5-second infusion time created optimal space and a lithiophilic surface on the Ag@CC collector.
- The gradient-infused anode exhibited improved cycling stability and reduced volume expansion rates.
- Integration with a high-capacity cathode yielded superior electrochemical performance with minimal volume expansion.
Conclusions:
- Gradient-infused Li-metal anodes with Ag@CC 3D current collectors offer a promising strategy.
- This design enhances the performance and safety of Li-metal-based high-capacity Li-ion batteries.
