Phosphide-Based Anode Materials for Battery Technologies
Summary
Transition metal phosphides have emerged as a class of high-performance anode materials for rechargeable batteries, combining elevated theoretical capacities with favourable electronic and ionic conductivities. Their conversion-type reaction mechanisms permit multiple electron transfers per formula unit, yielding gravimetric and volumetric capacities that often exceed those of conventional graphite or carbonaceous anodes. However, rapid capacity fade arising from large volume expansion during lithiation, sodiation or potassiation presents a persistent challenge. Recent advances have focused on nano-architecturing phosphides, incorporating carbonaceous matrices, and engineering heterostructures to stabilise electrode integrity, enhance charge-transfer kinetics and buffer mechanical stress. Such designs span two-dimensional coatings, multi-shelled hollow morphologies, and robust composites derived from metal-organic frameworks. Collectively, these innovations hold promise for lithium-ion, sodium-ion and next-generation potassium-ion batteries, paving the way towards high-energy, long-cycle-life storage devices.
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Phosphide-Based Anode Materials for Battery Technologies publication trend
The graph below shows the total number of articles in phosphide-based anode materials for battery technologies across all publications each year (not limited to Nature Index journals).
Technical terms
Conversion anode: An electrode material that stores charge through a reversible chemical transformation between metal phosphide and its elemental or subphosphate components.
Specific capacity: The charge stored per unit mass of active material, expressed in milliampere-hours per gram (mAh g⁻¹).
Volume expansion: The change in electrode volume during ion insertion, which can induce mechanical stress and degrade electrode integrity over cycles.
Coulombic efficiency: The ratio of charge extracted to charge inserted in a cycle, indicating the reversibility of electrochemical reactions.
Heterostructure: A composite architecture combining different materials or phases at the nanoscale to exploit synergistic effects in conductivity, stability and reactivity.
References
- MOF‐derived Multi‐Shelled NiP2 Microspheres as High‐Performance Anode Materials for Sodium‐/Potassium‐Ion Batteries. Advanced Energy and Sustainability Research (2022).
- Bimetallic Flower-like NiCoP Encapsulated in an N-Doped Carbon Shell with Enhanced Lithium Storage Properties. Batteries (2023).
- Facilitating Synthesis of FeP/C@CoP Composites as High-Performance Anode Materials for Sodium-Ion Batteries. Coatings (2023).
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