Recent advances in rational design for high-performance potassium-ion batteries

Chemical Society Reviews, Год журнала: 2024, Номер 53(13), С. 7202 - 7298

Опубликована: Янв. 1, 2024

The growing global energy demand necessitates the development of renewable solutions to mitigate greenhouse gas emissions and air pollution. To efficiently utilize yet intermittent sources such as solar wind power, there is a critical need for large-scale storage systems (EES) with high electrochemical performance. While lithium-ion batteries (LIBs) have been successfully used EES, surging price, coupled limited supply crucial metals like lithium cobalt, raised concerns about future sustainability. In this context, potassium-ion (PIBs) emerged promising alternatives commercial LIBs. Leveraging low cost potassium resources, abundant natural reserves, similar chemical properties potassium, PIBs exhibit excellent ion transport kinetics in electrolytes. This review starts from fundamental principles structural regulation PIBs, offering comprehensive overview their current research status. It covers cathode materials, anode electrolytes, binders, separators, combining insights full battery performance, degradation mechanisms,

Язык: Английский

---

Comprehensive Insights into Aqueous Potassium‐Ion Batteries

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 9, 2024

Abstract Aqueous potassium‐ion batteries (AKIBs) with mild aqueous electrolytes can significantly mitigate the safety and environmental issues raised from traditional nonaqueous batteries, positioning them as promising candidates for grid‐scale applications. Nonetheless, progression of AKIBs is currently impeded by insufficient energy density, largely attributed to limited voltage window electrolytes. This review aims introduce foundational knowledge about illustrates recent advancements in AKIBs, offers valuable perspectives on designing electrode materials optimizing To provide a systematic overview, focus following seven key sections: i) development history, ii) materials, iii) electrolyte design, iv) current collectors, v) interphase chemistry, vi) full cell configurations, vii) future prospects. Finally, constructive insights suggestions are provided higher density.

Язык: Английский

---

1 µm‐Thick Robust Gel Polymer Electrolyte with Excellent Interfacial Stability for High‐Performance Li Metal Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 17, 2024

Abstract Gel polymer electrolytes (GPEs) hold great promise for lithium (Li) metal batteries (LMBs). Nevertheless, a critical challenge lies in reducing the thickness of GPEs while maintaining their mechanical integrity to achieve high‐energy‐density LMBs. Additionally, protecting Li anode via electrolyte engineering remains demanding. Herein, an innovative ultrathin (1 µm‐thick) yet robust GPE developed using situ curing technique, featuring nanofibrous, exceptionally strong polyethylene separator is presented. The unique microstructure, interfacial conformability, and ultrahigh robustness are thoroughly verified. Enhanced ionic association within achieved due affinity solvent with fluorinated network, as confirmed by large‐scale molecular dynamics simulations. optimized solvation structure high contact ion pairs aggregate fractions contributes forming anion‐derived inorganic‐rich solid interphase (SEI), thereby anode. Benefiting from excellent stability, full cell mass loading LiNi 0.8 Co 0.1 Mn O 2 cathode (≈17.3 mg cm −2 ) thin foil (50 µm) demonstrates 91% capacity retention after 200 cycles. This design feasible approach toward practical quasi‐solid‐state

Язык: Английский

---

Porous Poly(Poly[Ethylene Glycol] Methyl Ether Methacrylate) Gel Polymer Electrolyte With Superior Electrochemical Properties in a High‐Performance Potassium‐Ion Battery

Battery energy, Год журнала: 2025, Номер unknown

Опубликована: Янв. 30, 2025

ABSTRACT Potassium‐ion batteries as a suitable alternative to lithium‐ion have drawn attention due available sources of potassium, low reduction potential, better diffusion through electrolyte/electrode interface, and good ionic conductivity. Here, photopolymerized porous gel polymer electrolyte based on poly(poly[ethylene glycol] methyl ether methacrylate) poly(methyl nanoparticles shows superior thermal electrochemical properties. After swelling in KPF 6 EC/PC solution, the best GPE demonstrates high conductivity 2.9 × 10 −2 S cm −1 , potassium transference number 0.88, stability > V. This excellent property could be related solvent uptake, surface area, K + pathway channels, T g electron donor groups methacrylate). Also, this an initial capacity 155 mAh Coulombic efficiency ~100%, retention 99.9% after 100 cycles current density 5 C with high‐voltage FeFe(CN) cathode graphite anode. FE‐SEM images show ability suppress dendrites charge–discharge at C. Additionally, 143 very C‐rate 10, showing its for use high‐performing rechargeable batteries.

Язык: Английский

---

Enhanced Ionic Diffusion via Refined Pillared 1D Channels for Sodium Metal Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 31, 2025

Abstract In sodium‐metal batteries (SMBs), the tunability of metal‐organic frameworks (MOFs) pore structures in electrolytes enhances sodium ion transport and anion selectivity. However, underlying mechanism these structures, especially on filtration, Dremains unclear. Herein, two zinc‐based azole hybrid (AHF) featuring pillared 1D channels are synthesized. The refined MOF‐based electrolyte, BPDC@PH, exhibits an ionic mobility number 0.87 conductivity 7.74 × 10 −4 S cm −1 at 35 °C, with cycling stability exceeding 1000 hours 1.0 mA −2 , which is comparable to existing electrolytes. Density functional theory calculations molecular dynamics simulations reveal that enlarged AHF‐BPDC enhance Na + diffusion TFSI − adsorption, a coefficient 5.733 −10 m 2 s Time‐of‐flight secondary mass spectrometry (TOF‐SIMS) conforms efficient NaTFSI rapid NaF deposition, ensuring 1000‐cycle over 99% efficiency. MOFs present promising strategy for developing advanced ssGPEs highly SMBs.

Язык: Английский

---

Research Progress and Prospect of Perovskite and Anti‐Perovskite Solid Electrolytes for Sodium Solid‐State Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 8, 2025

Abstract Sodium solid‐state batteries (SSSBs) are poised to revolutionize energy storage by capitalizing on sodium's exceptional crustal abundance (2.36% vs 0.0017% for lithium) and cost‐effectiveness, addressing critical sustainability challenges of lithium‐dependent technologies. Solid electrolytes (SEs) with high ionic conductivity stability have gained significant attention. The compositional structural flexibility perovskites anti‐perovskites make them competitive, the combination advanced computer simulations synthesis techniques can achieve stable materials. Importantly, perovskite anti‐perovskite SEs at room temperature endow enormous potential construction SSSBs. In this review, research progress SSSBs is summarized, different optimization strategies improving compared, an in‐depth discussion chemical electrochemical provided. Specifically, key technical indicators reflecting their tolerance future application been summarized discussed first time. Among these, anti‐perovskites, due diversity presence more ion transport channels, become commercial SEs. Finally, development directions prospected.

Язык: Английский

---

Vertical two-dimensional heterostructures and superlattices for lithium batteries and beyond

Nano Energy, Год журнала: 2024, Номер 129, С. 110042 - 110042

Опубликована: Июль 23, 2024

Язык: Английский

---

Introductory Review of Soft Implantable Bioelectronics Using Conductive and Functional Hydrogels and Hydrogel Nanocomposites

Gels, Год журнала: 2024, Номер 10(10), С. 614 - 614

Опубликована: Сен. 25, 2024

Interfaces between implantable bioelectrodes and tissues provide critical insights into the biological pathological conditions of targeted organs, aiding diagnosis treatment. While conventional bioelectronics, made from rigid materials like metals silicon, have been essential for recording signals delivering electric stimulation, they face limitations due to mechanical mismatch devices soft tissues. Recently, focus has shifted toward conductive materials, such as hydrogels hydrogel nanocomposites, known their tissue-like softness, biocompatibility, potential functionalization. This review introduces these provides an overview recent advances in nanocomposites electronics. It covers material strategies hydrogels, including both intrinsically explores key functionalization techniques biodegradation, bioadhesiveness, injectability, self-healing. Practical applications electronics are also highlighted, showcasing effectiveness real-world scenarios. Finally, we discuss emerging technologies future needs chronically offering evolving landscape this field.

Язык: Английский

---

Coherent Single‐Atom Dipole–Dipole Coupling Mediates Holistic Regulation of K⁺ Migration for Superior Energy Storage and Dendrite‐Free Metal Deposition

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Abstract Potassium‐based batteries, including potassium‐ion (PIBs) and potassium metal batteries (PMBs), are gaining attention as alternatives to lithium‐ion (LIBs). However, potassium's large ionic radius (1.38 Å) reduces charge density, weakens solvation, increases energy barriers for K + diffusion, leading slower reaction kinetics, thicker solid electrolyte interphase (SEI) layers, dendrite formation. To address these challenges, a novel single‐atom Fe‐N 4 dipole–dipole coupling (SA.Fe) is proposed. The unique coordination highly conductive Ketjen black (KB) substrate establish rapid horizontal electron transfer network, enhancing electrode interface reactions. Moreover, Fe‐N‐C generates short‐range polar electric field, improving affinity diffusion. This coherent effectively regulates migration, significantly kinetics lowering diffusion barriers. SA.Fe anode delivers high reversible capacities (446.3 mAh g −1 ) exceptional durability (10 000 cycles at 2.0 A in PIBs, alongside remarkable stability (600 0.5 mA cm −2 fast (K metal) deposition without formation PMBs. study highlights the potential of dipole efficient storage dendrite‐free offering promising pathway next‐generation potassium‐based systems.

Язык: Английский

---

Irida-like boron nitride two-dimensional monolayer high-capacity anode for potassium ion battery

Diamond and Related Materials, Год журнала: 2025, Номер unknown, С. 112223 - 112223

Опубликована: Март 1, 2025

Язык: Английский

---