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Overcoming Li+ Transport Hysteresis via Bio-Inspired Neuron-Like 3D Carbon Framework Engineering for Stable Li Metal
Bo Zhang1, Donghu Li1, Xinli Wu2
1College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi China.
Nano Letters
|March 9, 2026
Summary
Researchers developed a novel neuron-like carbon host for lithium metal anodes, enhancing battery performance. This advanced material improves lithium-ion transport and stability, paving the way for next-generation batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Lithium metal anodes offer high energy density but suffer from dendrite formation and volume instability.
- Current composite lithium anodes struggle with controlled interfacial ion transport, limiting cycle life.
Purpose of the Study:
- To design and synthesize an advanced lithium metal host with improved ion transport and mechanical stability.
- To investigate the potential of a neuron-like 3D carbon framework for high-performance lithium metal batteries.
Main Methods:
- Fabrication of a lithiophilic, neuron-like 3D carbon framework from N-rich melamine polymer.
- Characterization of the carbon framework's structure, composition, and electrochemical properties.
- Testing of composite lithium anodes in half, symmetric, and full battery cells.
Main Results:
- The developed carbon host facilitates continuous, low-hysteresis Li+ transport.
- Nitrogen doping provides uniform nucleation sites and mitigates plating/stripping strain.
- Achieved 98.6% Coulombic efficiency over 800 cycles (half cells) and 2000 h stability (symmetric cells).
Conclusions:
- The neuron-like carbon framework effectively regulates interfacial Li+ transport in lithium metal anodes.
- This strategy enhances cycling durability and performance in lithium metal batteries.
- Offers a cost-effective approach for developing stable and high-performance lithium metal anodes.
