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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
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2D-Pnictogens: alloy-based anode battery materials with ultrahigh cycling stability
Seyyed Mohsen Beladi-Mousavi1, Martin Pumera
1Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, Prague 6 166 28, Czech Republic. pumera.research@gmail.com.
Chemical Society Reviews
|September 5, 2018
Summary
Two-dimensional (2D) pnictogens like black phosphorus show promise for high-capacity lithium and sodium ion batteries. However, their alloying mechanism causes instability, which 2D structures aim to overcome for better energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Growing demand for efficient energy storage in electric vehicles, portable electronics, and smart grids.
- Electrode materials are critical for battery performance (energy density, power density, cyclability, safety).
- Graphite anodes are being challenged by group V pnictogens (As, Sb, Bi) due to high capacities.
Purpose of the Study:
- Review the preparation, properties, and potential of 2D pnictogens as advanced battery electrode materials.
- Discuss intercalation and alloying mechanisms for lithium and sodium storage.
- Highlight the advantages of 2D pnictogens over their 3D counterparts.
Main Methods:
- Literature review of theoretical and experimental studies.
- Analysis of crystal structure, chemical stability, and electrochemical performance.
- Comparison of 2D and 3D pnictogen structures for battery applications.
Main Results:
- 2D pnictogens exhibit high specific capacities for lithium and sodium storage via alloying.
- Alloying in bulk materials leads to volume expansion and poor cycling stability.
- 2D pnictogen structures offer improved performance and stability for ion batteries.
Conclusions:
- 2D pnictogens are promising alternatives to graphite anodes for next-generation batteries.
- Understanding and mitigating the challenges of alloying mechanisms is key to realizing their full potential.
- Further research into 2D pnictogen materials can lead to significant advancements in energy storage technology.
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