Recent Progress in Using Covalent Organic Frameworks to Stabilize Metal Anodes for Highly‐Efficient Rechargeable Batteries

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(28)

Опубликована: Май 7, 2024

Alkali metals (e.g. Li, Na, and K) multivalent Zn, Mg, Ca, Al) have become star anodes for developing high-energy-density rechargeable batteries due to their high theoretical capacity excellent conductivity. However, the inevitable dendrites unstable interfaces of metal pose challenges safety stability batteries. To address these issues, covalent organic frameworks (COFs), as emerging materials, been widely investigated regular porous structure, flexible molecular design, specific surface area. In this minireview, we summarize research progress COFs in stabilizing anodes. First, present origins delve into advantages based on physical/chemical properties alkali metals. Then, special attention has paid application host design anodes, artificial solid electrolyte interfaces, additives, solid-state electrolytes, separator modifications. Finally, a new perspective is provided from pore modulation, synthesis COFs.

Язык: Английский

---

Electrochemical Energy Storage Devices─Batteries, Supercapacitors, and Battery–Supercapacitor Hybrid Devices

ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Язык: Английский

---

Substitution–Leaching–Deposition (SLD) Processes Drive Reversible Surface Layer Reconstruction of Metal Oxides for Fluoride Adsorption

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 10, 2025

Surface complexation has long been recognized as the basic mode involved in fluoride adsorption onto metal oxides. However, such general recognition is challenged by unusual pH dependence observed adsorption. Here, we selected hydrated zirconium oxide (HZO) a representative to revisit mechanism. Multiple situ microscopic analyses and thermodynamic simulations suggest that, unlike of other anions that proceed exclusively via substituting protonated terminal hydroxyl (η-OH2+) groups oxides, can displace both η-OH2+ bridging (μ-OH+) HZO (i.e., Substitution). This distinctive displacement drives leaching Zr from HZO, generating aqueous polyfluorozirconium complexes Leaching) which subsequently deposit outer-sphere Deposition). The adsorbed gradually converts into fluorozirconate (Na5Zr2F13) coating, resulting surface layer reconstruction up 100 nm depth. atypical dependency be explained processes Substitution, Leaching, Deposition SLD processes). More attractively, SLD-driven reversible nature, ensuring constant defluoridation capability during cyclic adsorption-desorption assays. study advances our understanding at water-metal interfaces.

Язык: Английский

---

Sustainable Carbon‐Based Catalyst Materials Derived From Lignocellulosic Biomass for Energy Storage and Conversion: Atomic Modulation and Properties Improvement

Carbon Energy, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

ABSTRACT Carbon electrocatalyst materials based on lignocellulosic biomass with multi‐components, various dimensions, high carbon content, and hierarchical morphology structures have gained great popularity in electrocatalytic applications recently. Due to the catalytic deficiency of neutral atoms, usage single lignocellulosic‐based electrocatalysis involving energy storage conversion presents unsatisfactory applicability. However, atomic‐level modulation lignocellulose‐based can optimize electronic structures, charge separation, transfer processes, so forth, which results substantially enhanced performance carbon‐based catalysts. This paper reviews recent advances rational design as electrocatalysts from an perspective, such self/external heteroatom doping metal modification. Then, through systematic discussion principles reaction mechanisms catalysts, prepared catalysts rechargeable batteries are reviewed. Finally, challenges improving prospects diverse review contributes synthesis strategy via modulation, turn promotes lignocellulose valorization for conversion.

Язык: Английский

---

Localized high concentration polymer electrolyte enabling room temperature solid-state lithium metal batteries with stable LiF-rich interphases

Energy storage materials, Год журнала: 2024, Номер 71, С. 103570 - 103570

Опубликована: Июнь 15, 2024

Язык: Английский

---

Understanding and Design of Cathode–Electrolyte Interphase in High‐Voltage Lithium–Metal Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июнь 10, 2024

Abstract The development of lithium–metal batteries (LMBs) has emerged as a mainstream approach for achieving high‐energy‐density energy storage devices. stability electrochemical interfaces plays an essential role in realizing stable and long‐life LMBs. Despite extensive comprehensive research on the lithium anode interface, there is limited focus cathode particularly regarding high‐voltage transition metal oxide materials. In this review, challenges associated with developing materials are first discussed. Characterization techniques understanding composition structure cathode–electrolyte interphase (CEI) then introduced. Subsequently, recent developments electrolyte design interface modification constructing CEI summarized. Finally, perspectives future trends This review can offer valuable guidance designing CEI, pushing forward

Язык: Английский

---

Recent Progress in Using Covalent Organic Frameworks to Stabilize Metal Anodes for Highly‐Efficient Rechargeable Batteries

Angewandte Chemie, Год журнала: 2024, Номер 136(28)

Опубликована: Май 7, 2024

Abstract Alkali metals (e.g. Li, Na, and K) multivalent Zn, Mg, Ca, Al) have become star anodes for developing high‐energy‐density rechargeable batteries due to their high theoretical capacity excellent conductivity. However, the inevitable dendrites unstable interfaces of metal pose challenges safety stability batteries. To address these issues, covalent organic frameworks (COFs), as emerging materials, been widely investigated regular porous structure, flexible molecular design, specific surface area. In this minireview, we summarize research progress COFs in stabilizing anodes. First, present origins delve into advantages based on physical/chemical properties alkali metals. Then, special attention has paid application host design anodes, artificial solid electrolyte interfaces, additives, solid‐state electrolytes, separator modifications. Finally, a new perspective is provided from pore modulation, synthesis COFs.

Язык: Английский

---

Revisiting the interfacial chemistry of calcium metal anodes: the importance of inorganic-rich solid/electrolyte interfaces derived from an aggregation-dominated electrolyte

Energy & Environmental Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The degradation of Ca anode in ester/ether electrolytes is attached to an organic-rich SEI. On this basis, we propose a desirable 2+ solvation sheath rich AGG and obtain inorganic-rich SEI, achieving high reversible plating/striping.

Язык: Английский

---

Constructing Anion Solvation Microenvironment Toward Durable High‐Voltage Sodium‐Based Batteries

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 26, 2025

Abstract Sodium‐based rechargeable batteries are some of the most promising candidates for electric energy storage with abundant sodium reserves, particularly, sodium‐based dual‐ion (SDIBs) perform advantages in high work voltage (≈5.0 V), high‐power density, and potentially low cost. However, irreversible electrolyte decomposition co‐intercalation solvent molecules at electrode interface under a charge state blocking their development. Herein, high‐salt concentration microenvironment is created proposed by tailoring solvation structures carriers including both cations anions, which maintains highly oxidation‐resistant contact ion pairs aggregates provides conductivity. The tailored structure makes great contribution to protecting graphite cathode from oxidation, co‐intercalation, structural degradation constructing robust cathode‐electrolyte interphase standout electrochemical stability. Based on this, SDIBs achieved an excellent high‐voltage cycling stability 81% capacity retention after 10 000 cycles battery showed improved rate performance 97.4 mAh g −1 maintained 100 C. It identified that regulating anion responsible stable chemistry enhanced reaction kinetics, deep insight into compatibility design between specialized electrodes.

Язык: Английский

---

High‐Performance Mg–O₂ Batteries Enabled by Electrospinning PVDF‐HFP‐Based Quasi‐Solid‐State Polymer Electrolyte

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Abstract This article reports a high‐performance rechargeable battery enabled by an electrospun quasi‐solid‐state electrolyte (E‐QSSE). The E‐QSSE, composed of Poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP), Mg(NO 3 ) 2 salt, and Pyr 14 TFSI ionic liquid (IL), exhibits high Mg 2+ ion transport interfacial stability. A unique sandwich structure coupling the E‐QSSE with Ruthenium nanoparticles decorated multi‐walled carbon nanotubes (Ru/CNT) cathode catalyst on paper significantly augments electrochemical reversibility. optimized 1:1 molar ratio salt IL achieves room temperature conductivity 6.39 mS cm −1 . E‐QSSE's stability window extends up to 3.95 V, showcasing its potential for high‐energy‐density applications. Mg‐O cell, delivers 115 discharge/charge cycles at 100 mA g , one longest reported cycle‐lives secondary batteries. maximum discharge capacity 9305 mAh 100% Coulombic efficiency. X‐ray photoelectron spectroscopy absorption near‐edge analyses reveal MgO as primary product, MgF contributing stable solid interphase. design promotes efficient migration reactions. work advances development stable, high‐capacity batteries can open avenues electrolytes in post‐lithium metal‐air technologies.

Язык: Английский

---