Bismuth-Based Anode Materials for Alkali Metal-Ion Batteries
Summary
Bismuth-based materials have emerged as promising anodes for lithium-, sodium- and potassium-ion batteries owing to their high theoretical volumetric capacity, suitable working potentials and earth‐abundant supply. Their charge storage relies mainly on alloying–dealloying reactions with alkali metal ions, which deliver high energy density but induce large volume changes during cycling. To mitigate mechanical strain and improve electronic conductivity, researchers have integrated bismuth with carbon matrices, engineered nanoscale architectures and optimised electrode–electrolyte interfaces. Such strategies, including heterostructuring, core–shell design and surface/interface engineering, can buffer volume expansion, stabilise the solid electrolyte interface and accelerate ion and electron transport. Advances in in situ characterisation and computational modelling have provided deeper insight into phase evolution and reaction kinetics, guiding the rational design of robust electrodes. Collectively, these developments point towards practical, high‐performance alkali metal‐ion batteries for grid storage, electric vehicles and low‐temperature applications.
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Bismuth-Based Anode Materials for Alkali Metal-Ion Batteries publication trend
The graph below shows the total number of articles in bismuth-based anode materials for alkali metal-ion batteries across all publications each year (not limited to Nature Index journals).
Technical terms
Alloying-type anode: An electrode that stores charge by forming and decomposing alloys with alkali metal ions during cycling.
Solid electrolyte interface (SEI): A passivation layer formed on the anode surface that stabilises electrode–electrolyte interactions.
Cointercalation: The simultaneous insertion of alkali metal ions and solvent molecules into an electrode host structure.
Density functional theory (DFT): A computational quantum mechanical modelling method used to predict electronic structure and reaction energetics.
Volumetric capacity: The amount of electric charge stored per unit volume of electrode material.
References
- Ideal Bi-Based Hybrid Anode Material for Ultrafast Charging of Sodium-Ion Batteries at Extremely Low Temperatures. Nano-Micro Letters (2024).
- Bi@C nanosphere anode with Na+‐ether‐solvent cointercalation behavior to achieve fast sodium storage under extreme low temperatures. Carbon Energy (2024).
- Bi Nanospheres Embedded in N‐Doped Carbon Nanowires Facilitate Ultrafast and Ultrastable Sodium Storage. Advanced Science (2024).
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