Related Experiment Video
Updated: Apr 5, 2026
10:58
Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing
Published on: March 7, 2018
10.8K
Progress towards high-power Li/CFx batteries: electrode architectures using carbon nanotubes with CFx
Qing Zhang1, Kenneth J Takeuchi, Esther S Takeuchi
1Department of Materials Science and Engineering, Stony Brook University, Stony Brook, NY 11794, USA. kenneth.takeuchi.1@stonybrook.edu esther.takeuchi@stonybrook.edu amy.marschilok@stonybrook.edu.
Physical Chemistry Chemical Physics : PCCP
|August 18, 2015
Summary
Carbon monofluoride (CFx) batteries can achieve high energy density. Adding carbon nanotubes (CNTs) significantly improves their power capability, enabling next-generation high-power batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Carbon monofluoride (CFx) offers high energy density (>2000 W h kg(-1)) for primary lithium batteries.
- Current limitations in CFx battery application stem from insufficient power capability.
- Multi-walled carbon nanotubes (CNTs) possess excellent electronic transport, high aspect ratio, and strength, making them promising additives for high-power applications.
Purpose of the Study:
- To explore the potential of carbon nanotubes (CNTs) in enhancing the performance of lithium-carbon monofluoride (Li/CFx) batteries.
- To investigate novel electrode architectures for high-power Li/CFx batteries utilizing CNTs.
- To demonstrate the effectiveness of CNTs in improving both rate capability and energy density of CFx electrodes.
Main Methods:
- Investigated the electrical resistivity of CFx/CNT composites compared to conventional carbon additives.
- Fabricated and electrochemically tested CFx-CNT electrodes using CNTs as substrates, replacing metallic current collectors.
- Constructed and analyzed multi-layered CNT-CFx-CNT composite (sandwich) electrodes to study structural impacts on performance.
Main Results:
- CNTs were shown to effectively enhance the rate capability and energy density of Li/CFx batteries.
- CFx/CNT composites exhibited improved electrochemical performance compared to conventional carbon additives.
- Novel electrode architectures, including CNT-based substrates and sandwich structures, demonstrated the benefits of CNT integration.
Conclusions:
- Carbon nanotubes offer significant opportunities for optimizing CFx electrodes.
- The integration of CNTs can overcome the power limitations of CFx materials.
- CFx, enhanced by CNTs, is a viable cathode material for next-generation high-power batteries.
