Multifunctional Additive for Electrolyte Stabilization and Electrode/Electrolyte Interphase Regulation in High-Voltage Lithium Metal Batteries

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Lithium-metal batteries (LMBs) incorporating nickel-rich cathodes have the potential to achieve superior energy densities. However, challenges associated with electrolyte-electrode interphases (EEIs) impeded successful transition of these advanced systems into practical applications. In this study, azidotrimethylsilane (ATMS) is introduced as a multifunctional additive for traditional carbonate-based electrolytes. The azido group in ATMS plays dual role electrochemical reactions, multiple nitrogen (N) atoms engaging both nucleophilic and electrophilic interactions. These N tend undergo preferential oxidation reactions at cathode, forming stable cathode electrolyte interphase, while also undergoing reduction anode inhibit lithium dendrite growth. Si-N bond structure has unique reactivity, effectively neutralizing HF produced from LiPF6 decomposition, thus preventing recurrent formation EEIs battery. As result, long-cycle performance Li||NCM811 significantly improved, capacity retention increasing 34.7% baseline 82.6% after 600 cycles. Similarly, enhances cycling Li||Li symmetric cells, extending their lifespan over 800 h, improves Coulombic efficiency Li||Cu cells 81.6 91.6%. synergistic effect on anodes further high-voltage LMBs.

Язык: Английский

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Unlocking Long Life Aqueous Zinc‐Sulfur Rechargeable Battery Derived from Zinc Waste Powering 30 LEDs

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 9, 2025

Abstract Aqueous Zinc‐sulfur (Zn‐S) rechargeable batteries are emerging as promising next‐generation energy storage devices due to safety, capacity, cost and efficiency. However, Zn corrosion, polarization, low conductivity volume expansion of sulfur cathode the bottlenecks for battery stability capacity. Herein, we report a dual strategy involving sulfanilamide (SA) additive stabilize Zn, paired with hollow Ni x Fe y O 4 confine sulfur, mitigating enhancing along iodine redox mediator improve 2+ kinetics. The designed demonstrated an excellent specific capacity 1260 mAh g −1 at 0.1 C 81% retention after 1000 cycles 1 C. SA mitigates hydrogen evolution reaction (HER) by 3.5 times 2.8‐fold reduction in corrosion rate anode, which is, supported Raman, H NMR spectroscopy furthercomplimented computational studies. symmetric Zn||Zn cell was stable more than 770 h, demonstrating ultra‐high anode. Formation ZnS monitered electrochemical in‐situ Raman spectroscopy. Zn‐S homemade pouch powered panel 30 red LED 93 h furthered fan, exceptional sustainability.

Язык: Английский

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Toward Zero‐Excess Alkali Metal Batteries: Bridging Experimental and Computational Insights

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Abstract This review introduces alkali metal (Li, Na, and K) anode‐less anode‐free batteries conveys a synopsis of the current challenges regarding anode‐electrolyte interfaces. The focuses on critical analysis fundamental understanding (eletro)chemical (electro)physical processes occurring at anode, including nucleation dendrite growth, properties liquid solid electrolytes, their roles in stripping/deposition process formation solid‐electrolyte interphase, separators role inhibiting growth. Solutions to tackle for are discussed extensively aspects modifications anode substrate, novel electrolyte solutions SEI structures, interface design, separators/solid‐state electrolytes enable stable battery performances. To highlight importance bridging experimental computational insights, progress derived from range advanced characterization techniques is analyzed combination with advancement multi‐scale theory modeling. Finally, outlooks provided both points view exciting field zero‐excess batteries.

Язык: Английский

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Solvation structure fine-tuning enables high stability sodium metal batteries

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(37), С. 25211 - 25221

Опубликована: Янв. 1, 2024

2-Propyn-1-ol methanesulfonate (PMS) preferentially undergoes reduction decomposition on sodium metal anodes and actively induces FEC solvation behavior, thereby forming a stable SEI film enriched with sulfide compounds NaF.

Язык: Английский

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Ultra-long cycle sodium ion batteries enabled by glutaric anhydride additive

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

For sodium-ion batteries, solving the issue of short cycle life is key to their large-scale adoption in industry, and electrolyte plays an important role on this. Herein, this work aims design a practical sodium ion battery with industrial application value introduces anhydride compounds as additives for first time. Meanwhile, by adjusting solvent composition using combination ether ester solvents, optimal formulation 1 M NaPF

Язык: Английский

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Electrolyte Chemistry Toward Sulfur‐Rich Interphase for Wide‐Temperature Sodium‐Ion Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 26, 2024

Abstract Achieving wide‐temperature operation is a crucial objective for the practical deployment of sodium‐ion batteries (SIBs). However, development suitable electrolytes hindered by significant challenges, including compromised ionic dynamics at low temperatures and interphase instability high temperatures. Herein, this study proposes novel enhancement mechanism utilizing sulfur‐rich strategy, grounded in rational solvent selection. This approach enriches electrolyte with sulfur‐containing species that exhibit Na + affinity efficient migration both cathode anode sides. Consequently, strategy significantly enhances interfacial charge transfer integrity, confirmed theoretical calculations electrochemical measurements. The designed demonstrates robust performance half‐cells based on 3 V 2 (PO 4 ) (NVP) across wide temperature range from −25 to 60 °C. Furthermore, full‐cell, featuring an NVP paired hard carbon anode, exhibits exceptional stability. Specifically, full cell achieves reversible capacities 56.1 mAh g −1 after 100 cycles °C 74.9 °C, impressive capacity retentions 87.7% 88.2%, respectively. Importantly, introduces advanced optimization enables SIBs temperatures, providing solutions future developments field.

Язык: Английский

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Fluorinated ester additive to regulate nucleation behavior and interfacial chemistry of room temperature sodium-sulfur batteries

Journal of Colloid and Interface Science, Год журнала: 2024, Номер unknown

Опубликована: Сен. 1, 2024

Язык: Английский

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An Investigation on Effect of Organic Additives for Stable Performance Vanadium – Cerium Redox Flow Batteries

ChemElectroChem, Год журнала: 2024, Номер 12(3)

Опубликована: Дек. 27, 2024

Abstract In an era where renewable energy resources are pivotal yet plagued by variability, vanadium‐cerium (V‐Ce) redox flow batteries (RFBs) present a sophisticated solution to storage and grid stability. This study focuses into the electrochemical integration of cerium with vanadium enhance traditional batteries′ density cost‐effectiveness. Through innovative design that allows scalability addresses challenges lower inherent in RFBs, V‐Ce RFBs demonstrate potential for more compact efficient systems. this work, we provide open‐source mono cell research. Herein, research spotlights characterization Ce‐based electrolytes, employing mixed acid electrolytes improve solubility. For improving performance including diffusion coefficients electron transfer rates, L–Leucine L–Lysine have been used as organic additives. Obtained results revealed these additives not only influence stability efficiency but also significantly affect charge‐discharge properties which, L‐leucine showing superior over L‐lysine. These findings propose new way optimizing large‐scale regarding efficiency, safety, environmental impact.

Язык: Английский

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Constructing a Robust Interphase with 1,1′-Oxalyldiimidazole (ODI) Additive to Enhance the Temperature and Rate Performance of LiNi_0.8Co_0.1Mn_0.1O₂/Graphite Batteries

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 17(2), С. 3467 - 3477

Опубликована: Дек. 31, 2024

This work develops 1,1′-oxalyldiimidazole (ODI) as a functional electrolyte additive. film-forming additive improves the wide range of temperature and rate performances LiNi0.8Co0.1Mn0.1O2/graphite (NCM811) batteries. After 1200 cycles at room (25 °C), discharge capacity retention is 51.95% for battery with blank electrolyte, it 93.18% that an ODI-containing electrolyte. With 0.1% ODI, increases from 0 to 75.89% after 500 45 °C 48.51 95.54% 300 −10 °C. In addition, performance also enhanced by introduction ODI. spectroscopic characterization, improvement electrochemical ODI supported. It demonstrated tends preferentially decompose on electrodes then participates in construction stable interfacial film low impedance, resulting performance. Not only does this develop imidazole-based but inspires innovative approaches creating additives can enhance

Язык: Английский

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Synergistic effects of film-forming and film-modifying additives for enhanced all-climate performance of graphite/NMC622 pouch cells

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 159156 - 159156

Опубликована: Дек. 1, 2024

Язык: Английский

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