Achieving High‐Performance Metal Phosphide Anode for Potassium Ion Batteries via Concentrated Electrolyte Chemistry

  title={Achieving High‐Performance Metal Phosphide Anode for Potassium Ion Batteries via Concentrated Electrolyte Chemistry},
  author={Fuhua Yang and Junnan Hao and Jun Long and Sailin Liu and Tian Zheng and Wilford Lie and Jun Chen and Zaiping Guo},
  journal={Advanced Energy Materials},
Metal phosphides are regarded as promising anode candidates for high‐energy‐density potassium‐ion batteries (PIBs) due to their high theoretical capacity and relatively low operation voltage. The failure mechanism of the metal phosphides originates from the large volume variation during cycling, which leads to fast capacity degradation. Herein, concentrated electrolyte is used to achieve impressive cycling stability for K‐metal and K‐ion batteries over their more dilute counterparts, mainly… 
Metal Phosphides Embedded with In Situ‐Formed Metal Phosphate Impurities as Buffer Materials for High‐Performance Potassium‐Ion Batteries
As anodes for metal‐ion batteries, metal phosphides usually suffer from severe capacity degradation because of their huge volume expansion and unstable solid electrolyte interphase (SEI), especially
Robust Solid Electrolyte Interphases in Localized High Concentration Electrolytes Boosting Black Phosphorus Anode for Potassium-Ion Batteries.
The benefits of high concentration electrolytes rely on the formation of an inorganic component rich solid electrolyte interphase (SEI), which effectively passivates the electrode from copious parasite reactions, and unravels the beneficial roles of LHCE in building robust SEIs for stabilizing alloy anodes.
Fundamental Understanding and Research Progress on the Interfacial Behaviors for Potassium‐Ion Battery Anode
Potassium‐ion batteries (PIBs) exhibit a considerable application prospect for energy storage systems due to their low cost, high operating voltage, and superior ionic conductivity. As a vital
Binder-Free and High-Loading Cathode Realized by Hierarchical Structure for Potassium-Sulfur Batteries.
The facile preparation method and excellent electrochemical properties reported herein can pave the way for developing high-performance K-S batteries.
Recent advances in anode materials for potassium-ion batteries: A review
Potassium-ion batteries (PIBs) are appealing alternatives to conventional lithium-ion batteries (LIBs) because of their wide potential window, fast ionic conductivity in the electrolyte, and reduced
Homologous Nitrogen-Doped Hierarchical Carbon Architectures Enabling Compatible Anode and Cathode for Potassium-Ion Hybrid Capacitors.
Potassium-ion hybrid capacitors (PIHCs) have been considered as an emerging device to render grid-scale energy storage. Nevertheless, the sluggish kinetics at the anode side and limited capacity
Recent Advances and Perspectives of Battery-Type Anode Materials for Potassium Ion Storage.
This Review begins with a brief introduction of the operation principles and performance indicators of typical K ion energy storage systems and significant advances in different types of battery-type anode materials, including intercalation, mixed surface-capacitive-/intercalation-, conversion, alloy, mixed conversion-/alloy-, and organic-type materials.


Boosting the Potassium Storage Performance of Alloy‐Based Anode Materials via Electrolyte Salt Chemistry
Potassium‐ion batteries (PIBs) are promising energy storage systems because of the abundance and low cost of potassium. The formidable challenge is to develop suitable electrode materials and
A Stable Conversion and Alloying Anode for Potassium‐Ion Batteries: A Combined Strategy of Encapsulation and Confinement
Potassium‐ion batteries based on conversion/alloying reactions have high potential applications in new‐generation large‐scale energy storage. However, their applications are hindered by inherent
The Promise and Challenge of Phosphorus‐Based Composites as Anode Materials for Potassium‐Ion Batteries
A rapid glimpse at recent studies on phosphorus-based anode materials for advanced KIBs is provided, covering the synthetic methods, reaction mechanisms, electrochemical properties, and performances, hoping to cast an insightful outlook for possible future direction in this field.
Graphite Anode for Potassium Ion Battery with Unprecedented Performance.
Graphite anode as anode for potassium ion battery (PIBs) possesses the merits of low cost and potentially high energy density, while suffers from limited cycle time and inferior stability, it is demonstrated that formation of a robust inorganic-rich passivation layer on the graphite anodes could resolve these dilemmas.
Unusual stability of acetonitrile-based superconcentrated electrolytes for fast-charging lithium-ion batteries.
Enhanced reductive stability of a superconcentrated AN solution is reported and, for the first time, reversible lithium intercalation into a graphite electrode in a reduction-vulnerable AN solvent is demonstrated.
An intrinsically non-flammable electrolyte for high performance potassium batteries.
The successful demonstration of using non-flammable phosphate as the sole solvent at low concentrations opens up an avenue for electrolyte design towards safe, low-cost, and high-performance large-scale batteries.
4.0 V Aqueous Li-Ion Batteries
Nanostructured CuP2/C composites as high-performance anode materials for sodium ion batteries
Research on sodium ion batteries has recently been revived. Attention is now placed on the development of high-capacity and stable electrode materials at low costs. Among them, compounds operating on