An interfacial compatible Ti4P8S29 polysulfide cathode with open channels for high-rate solid-state polymer sodium batteries

Rare Metals, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Language: Английский

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Interfacial Modulation with Phosphorylated Covalent Organic Framework Enabling Highly Durable Sodium Metal Batteries in Carbonate‐Based Electrolytes

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(48)

Published: Aug. 6, 2024

Abstract The practical usage of Na metal anode is severely prohibited by the instability natively formed solid electrolyte interface (SEI) layer and uncontrollable dendrite growth, inducing short cycle life serious safety concerns. Herein, phosphorylated covalent organic frameworks (P‐COF) first synthesized rationally used to construct robust artificial for stabilization. modified demonstrates high rate performance (5 mA cm −2 ) ultralong cycling lifespan (1800 h) with dendrite‐free deposition in carbonate‐based electrolyte. And assembled Na|Na 3 V 2 (PO 4 (NVP) cell also reveals extraordinarily stable at 5 C 4000 cycles a quite low decay 0.002% per cycle. Moreover, Na|NVP full areal capacity (2.0 mAh thin (30 µm) still prolonged over 500 even under harsh condition negative‐to‐positive‐capacity (N/P) ratio 2:3. Furthermore, pouch an ultrathick cathode (≈17 mg manifests significantly performance. This work facile effective strategy toward reliable batteries.

Language: Английский

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Self-forming Na3P/Na2O interphase on a novel biphasic Na3Zr2Si2PO12/Na3PO4 solid electrolyte for long-cycling solid-state Na-metal batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: 73, P. 103831 - 103831

Published: Oct. 12, 2024

Language: Английский

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Engineering Interlayer Space and Composite of Square-Shaped V₂O₅ by PVP-Assisted Polyaniline Intercalation and Graphene for Aqueous Zinc-Ion Batteries

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(43), P. 20551 - 20561

Published: Oct. 21, 2024

V

Language: Английский

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Sodiophilic Zn‐Diamane Ion Rectification Layer Modulated Polypropylene Separators Enable Dendrite‐Free Sodium Metal Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 26, 2024

Abstract Sodium (Na) metal is regarded as an ideal anode for sodium batteries (SMBs) due to its high theoretical specific capacity and low electrochemical potential. However, utilization still restricted by the notorious dendrites unstable solid electrolyte interface (SEI). Herein, a zinc nanoparticle decorated 2D diamond (diamane) modulated commercial polypropylene (Zn‐diamane/PP) separator dedicated mitigating these issues longevity of anodes. Interestingly, sodiophilic Zn‐diamane/PP significantly accelerates ion mobilization promotes uniform flux, thus effectively preventing dendrite growth enhancing stability SEI layer. A Na||Na symmetric cell with demonstrates prolonged lifespan exceeding 5000 h at 1 mA cm −2 mAh . Notably, it sustains >1000 ultra‐high current density 25 The dendrite‐free deposition morphology formation inorganic‐rich inner layer have been investigated through comprehensive characterizations calculations analysis. Furthermore, full comprising Na 3 V 2 (PO 4 ) @C cathode, separator, demonstrate reversible 90 g −1 over 500 cycles. These results potential long‐cycle SMBs.

Language: Английский

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Enhancing sodium ionic conductivity: An interface bridging strategy for Na3Zr2Si2PO12 solid-state electrolyte

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 115, P. 116046 - 116046

Published: March 1, 2025

Language: Английский

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Glass cathode crystallization with optimized cyclability towards energy storage technology

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179986 - 179986

Published: March 1, 2025

Language: Английский

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Sodiophilic Interface Induces a NaF-Rich Solid Electrolyte Interface for Stable Sodium–Metal Batteries under Harsh Conditions

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

The development of sodium-metal batteries faces challenges, particularly Na dendrite growth resulting from uneven plating/stripping and side reactions between metal the electrolyte. Herein, a Ag interfacial layer on sodium surface is proposed. Benefiting its excellent sodiophilicity, coating works as nucleation sites that guide uniform deposition. Simultaneously, conductivity ensures homogeneous electric field distribution ion flux, which also contribute to Furthermore, strong interaction PF6- induces construction NaF-rich solid electrolyte interphase, contributes stabilizing interface suppressing reactions. Consequently, symmetric cells demonstrate high cycling stability over 1000 h at 3 mA cm-2. Moreover, full achieve an impressive capacity retention rate 90% after 800 cycles 20 C performance even across various temperatures.

Language: Английский

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Electronic Structure Regulation Inducing Robust Solid Electrolyte Interphase for Stable Anode-free Sodium Metal Batteries

Advanced Powder Materials, Journal Year: 2025, Volume and Issue: unknown, P. 100303 - 100303

Published: May 1, 2025

Language: Английский

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Synergistic Nitrogen-Doping and Defect Engineering in Hard Carbon: Unlocking Ultrahigh Rate Capability and Long-Cycling Stability for Sodium-Ion Battery Anodes

Materials, Journal Year: 2025, Volume and Issue: 18(10), P. 2397 - 2397

Published: May 21, 2025

Hard carbon (HC) anodes for sodium-ion batteries (SIBs) face challenges such as sluggish Na⁺ diffusion kinetics and structural instability. Herein, we propose a synergistic nitrogen-doping defect-engineering strategy to unlock ultrahigh-rate capability long-term cyclability in biomass-derived hard carbon. A scalable synthesis route is developed via hydrothermal carbonization of corn stalk, followed by controlled pyrolysis with urea, achieving uniform nitrogen incorporation into the matrix. Comprehensive characterization reveals that doping introduces tailored defects, expands interlayer spacing, optimizes surface pseudocapacitance. The resultant N-doped (NC-2) delivers remarkable reversible capacity 259 mAh g−1 at 0.1 91% retention after 100 cycles. And analysis demonstrates dual storage mechanism combining surface-driven pseudocapacitive adsorption (89% contribution 1.0 mV s−1) diffusion-controlled intercalation facilitated reduced charge transfer resistance (56.9 Ω) enhanced ionic pathways. Notably, NC-2 exhibits exceptional rate performance (124.0 g−1) sustains 95% over 500 cycles g−1. This work establishes universal paradigm carbonaceous materials, offering fundamental insights structure–property correlations paving way sustainable, high-performance SIB anodes.

Language: Английский

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