Key Findings
The synthesized LiMn0.7Fe0.3PO4/C/CNTs composite demonstrates exceptional electrochemical performance across various C-rates. In testing, the material delivered 168.5 mAh g−1 at 0.1C, 156.2 mAh g−1 at 1C, 142.9 mAh g−1 at 10C, and 96.7 mAh g−1 at 100C. Long-term stability tests indicate that after 1,000 cycles at the 100C rate, the cathode retained a capacity of 102.1 mAh g−1, representing a capacity retention rate of 67.5%.
Technical Details
The material consists of spherical micrometer-sized particles produced through a specific two-stage synthesis route:
- Co-precipitation: This initial step produces a Mn0.7Fe0.3CO3 precursor characterized by a solid-solution structure of iron and manganese.
- Processing: The precursor undergoes spray drying and high-temperature sintering to create the final LMFP/C/CNT particles.
Carbon nanotubes (CNTs) are integrated into the composite to prevent the excessive growth of primary particles and to establish highly conductive pathways. This architecture enhances interparticle electron transport and overall electrical conductivity, which the authors link to improved structural stability during repeated cycling.
Background and Context
The research, published in the Journal of Materials Science in 2026, was conducted by a team including Jishun Yang, Yuan Ping, Hongjiang Yu, Jiyang Deng, Cuilin Yu, and Gang Yang. The study focuses on optimizing the morphology of the cathode to accelerate the movement of lithium ions and electrons, which is critical for high-power battery applications.
Significance and Outlook
The use of CNTs as a conductive bridge allows the material to sustain high-rate cycling that would typically degrade standard cathodes. While these results demonstrate the potential of the LiMn0.7Fe0.3PO4/C/CNTs composite, the authors note that these figures are based on specific synthesized composites under test conditions. Transitioning to commercial cells would require further validation at the pack level and under varying temperature conditions.
Source: https://bioengineer.org/carbon-nanotube-wrapped-lithium-cathode-holds-charge-at-100c-rates/
Get our weekly technology intelligence — free
Receive an infographic that lets you judge at a glance whether each field’s analysis report is worth reading.
Subscribe Free — Weekly Tech Intelligence
By subscribing, you’ll receive Troy-Technical’s weekly technology intelligence newsletter.
- Your email and selected fields are used only to deliver the newsletter.
- We never share your information with third parties.
- You can unsubscribe anytime via the link in each email.
See our Privacy Policy for details.
Takes about a minute · Unsubscribe anytime
