Self‐Regulating Organic Polymer Coupled with Enlarged Inorganic SnS2 Interlamellar Composite for Potassium Ion Batteries
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DOI: 10.1002/adfm.202005080
Abstract: Tin (Sn)‐based alloy SnS2 has attracted significant attention as a promising candidate for potassium ion storage due to the high theoretical capacity, however, it seriously suffers from the huge volume variation and the growth of… read more here.
Keywords: potassium ion; regulating organic; sns2; self regulating ... See more keywords
Boosting Coulombic Efficiency of Conversion‐Reaction Anodes for Potassium‐Ion Batteries via Confinement Effect
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DOI: 10.1002/adfm.202007712
Abstract: Potassium‐ion battery anode materials with high capacity always hold one or more K ions and are companied by large volume swelling, which threatens the stability of solid‐electrolyte‐interface (SEI) layers, and results in low coulombic efficiency… read more here.
Keywords: confinement effect; potassium ion; efficiency; coulombic efficiency ... See more keywords
Phase Engineering of Nickel Sulfides to Boost Sodium‐ and Potassium‐Ion Storage Performance
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DOI: 10.1002/adfm.202010832
Abstract: Sulfides are promising anode candidates because of their relatively large theoretical discharge/charge specific capacity and pretty small volume changes, but suffers from sluggish kinetics and structural instability upon cycling. Phase engineering can be designed to… read more here.
Keywords: phase engineering; potassium ion; performance; ion ... See more keywords
Hydrated Bi‐Ti‐Bimetal Ethylene Glycol: A New High‐Capacity and Stable Anode Material for Potassium‐Ion Batteries
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DOI: 10.1002/adfm.202300582
Abstract: Potassium‐ion batteries have emerged not only as low‐cost alternatives to lithium‐ion batteries, but also as high‐voltage energy storage systems. However, their development is still encumbered by the scarcity of high‐performance electrode materials that can endure… read more here.
Keywords: potassium; ion batteries; potassium ion; high capacity ... See more keywords
Multiphase Riveting Structure for High Power and Long Lifespan Potassium‐Ion Batteries
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DOI: 10.1002/adfm.202315006
Abstract: The development of potassium‐ion batteries (KIBs) relies on the exploration of stable layer‐structured oxide cathode materials and a comprehensive understanding of ion storage and diffusion behaviors. A multiphase riveting‐structured O3/P2/P3‐Na0.9[Ni0.3Mn0.55Cu0.1Ti0.05]O2 (Tri‐NMCT) is employed as cathode… read more here.
Keywords: riveting structure; ion batteries; multiphase riveting; ion ... See more keywords
Intermolecular Interaction Mediated Potassium Ion Intercalation Chemistry in Ether‐Based Electrolyte for Potassium‐Ion Batteries
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DOI: 10.1002/adfm.202401118
Abstract: Electrolyte design is indeed a highly effective strategy to improve battery performance. However, identifying the intermolecular interaction in electrolyte solvation structure is rarely reported in potassium‐ion batteries. Herein, it is discovered that a solvent‐solvent intermolecular… read more here.
Keywords: intermolecular interaction; chemistry; ion batteries; ion ... See more keywords
Regulating Ion Transfer Dynamics and Potassium Polyselenide Dissolution in Dual‐Defect MoSe2‐x@NC for Ultrafast and Stable Potassium‐Ion Storage
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DOI: 10.1002/adfm.202424278
Abstract: Molybdenum diselenide (MoSe2), a promising anode material for potassium‐ion batteries (KIBs), often suffers from sluggish kinetics, substantial volumetric expansion, and dissolution and shuttling of intermediate phases, resulting in unsatisfactory cycle stability and rate performance. In… read more here.
Keywords: dissolution; dual defect; ion; mose2 ... See more keywords
Synergistic Kinetics Modulation at Graphite Interface Enables Ultrafast and Durable Potassium‐Ion Batteries
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DOI: 10.1002/adfm.202504576
Abstract: Graphite has been considered as the most promising anode material for potassium‐ion batteries (PIBs) commercialization due to its high theoretical specific capacity and favorable charge‐discharge platform. Nevertheless, in conventional KPF6‐based electrolytes, the practical implementation is… read more here.
Keywords: capacity; rate; ion batteries; potassium ... See more keywords
Bimetallic Substitution Engineering Enabled Fast‐Charging Layered Oxide Cathodes for Potassium‐Ion Batteries
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DOI: 10.1002/adfm.202520413
Abstract: Potassium‐based layered transition metal oxides, one of the most promising cathodes for potassium‐ion batteries (PIBs), suffer from detrimental intrinsic phase transitions and sluggish K+‐diffusion kinetics, resulting in inferior fast‐charging capability. Herein, a facile bimetallic substitution… read more here.
Keywords: fast charging; substitution; bimetallic substitution; cathodes potassium ... See more keywords
Dual‐Halide Electrode–Electrolyte Interphase for High‐Voltage Potassium‐Ion Batteries
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DOI: 10.1002/adfm.202523738
Abstract: In potassium‐ion batteries (PIBs), the electrode–electrolyte interphase (EEI) formed in conventional electrolytes often suffers from uneven thickness, poor compactness, and severe dissolution, which fails to provide long‐term protection for electrodes, leading to rapid capacity decay… read more here.
Keywords: interphase; high voltage; dual halide; potassium ion ... See more keywords
High-Capacity Aqueous Potassium-Ion Batteries for Large-Scale Energy Storage.
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DOI: 10.1002/adma.201604007
Abstract: A potassium iron (II) hexacyanoferrate nanocube cathode material is reported, which operates with an aqueous electrolyte to deliver exceptionally high capacities (up to 120 mA h g-1 ). The cathode material exhibits excellent structural integrity,… read more here.
Keywords: capacity aqueous; potassium; high capacity; potassium ion ... See more keywords