Recent advances in fast-charging lithium-ion batteries: Mechanism, materials, and future opportunities

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159927 - 159927

Published: Jan. 1, 2025

Language: Английский

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LiZn/Li₂O Induced Chemical Confinement Enabling Dendrite‐Free Li‐Metal Anode

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(19)

Published: Dec. 8, 2023

Abstract Li metal has been considered as a potential anode candidate for next‐generation high‐energy Li‐metal batteries, even though the uncontrollable growth of dendrites shortens their cycling lifespan. Herein, reliable and dendrite‐free is fabricated via inducing chemical confinement based on an atomic layer deposited lithiophilic ZnO in situ generating LiZn/Li 2 O arrays. In configuration, arrays consisting uniformly distributed LiZn phases, phases with favorable diffusion barrier guarantee preferential nucleation prevent to some sites uneven charge accumulation. Furthermore, these functional LiZn/Li2O configurations satisfied localized free electron distribution can effectively decompose clusters aggregation. Meanwhile, electron‐conductive ensure efficient transfer throughout configuration. Therefore, O‐derived enables uniform deposition. Consequently, as‐prepared presents overpotential <45 mV at 15 mA cm −2 symmetrical cells. Moreover, preferable stability rate capability are delivered by as‐assembled cells LiNi 0.6 Co 0.2 Mn (NCM622) cathode. It believed that strategy proposed here be also beneficial other effective systems fabricating high‐performance anode.

Language: Английский

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Advanced K3V2(PO4)2O2F cathode for rechargeable potassium-ion batteries with high energy density

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 124(18)

Published: April 29, 2024

Potassium-ion batteries (PIBs) have emerged as promising candidates for cost-effective and sustainable energy-storage systems. Nevertheless, limited by the large K+ radius, PIBs great difficulty in figuring out designing suitable host materials. Herein, a cathode material K3V2(PO4)2O2F (KVPOF) has been carefully prepared. It exhibits high specific capacity close to theoretical value, 116.3 mAh/g at 20 mA/g within voltage window of 2.0–4.5 V vs K+/K, corresponding de-/intercalation process ∼2 mol per formula unit. In addition, it presents an average operating plateau about 3.5 V, resulting energy density 410 Wh/kg. The crystal structure phase transition are revealed situ x-ray diffraction, is found be fully reversible during K+. Furthermore, potential KVPOF applications low temperatures was explored, full cell matched with graphite anode demonstrated fair electrochemical performance. experimental results suggest feasibility using rechargeable PIBs.

Language: Английский

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Lithium Sulfur Batteries: Insights from Solvation Chemistry to Feasibility Designing Strategies for Practical Applications

Energy & environment materials, Journal Year: 2024, Volume and Issue: 7(4)

Published: Feb. 7, 2024

Rechargeable lithium–sulfur (Li–S) batteries, featuring high energy density, low cost, and environmental friendliness, have been dubbed as one of the most promising candidates to replace current commercial rechargeable Li‐ion batteries. However, their practical deployment has long plagued by infamous “shuttle effect” soluble Li polysulfides (LiPSs) rampant growth dendrites. Therefore, it is important specifically elucidate solvation structure in Li–S system systematically summarize feasibility strategies that can simultaneously suppress shuttle effect dendrites for applications. This review attempts achieve this goal. In review, we first introduce importance developing batteries highlight key challenges. Then, revisit working principles underscore fundamental understanding LiPSs. Next, some representative characterization techniques theoretical calculations applied characterize Afterward, overview feasible designing LiPSs Finally, conclude propose personal insights perspectives on future development We envisage timely provide inspiration build better promoting

Language: Английский

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In Situ Construction of a Multifunctional Interphase Enabling Continuous Capture of Unstable Lattice Oxygen Under Ultrahigh Voltages

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(20), P. 14036 - 14047

Published: May 10, 2024

The use of nickel-rich layered materials as cathodes can boost the energy density lithium batteries. However, developing a safe and long-term stable cathode is challenging primarily due to release lattice oxygen from during cycling, especially at high voltages, which will cause series adverse effects, leading battery failure thermal runaway. Surface coating often considered effective in capturing active species; however, its process rather complicated, it difficult maintain intact on with large volume changes cycling. Here, we propose an situ construction multifunctional cathode/electrolyte interphase (CEI), easy prepare, repairable, and, most importantly, capable continuously species entire life span. This unique protective mechanism notably improves cycling stability Li||LiNi0.8Co0.1Mn0.1O2 (NCM811) cells rigorous working conditions, including ultrahigh voltage (4.8 V), temperature (60 °C), fast charging (10 C). An industrial 1 A h graphite||NCM811 pouch cell achieved operation 600 cycles capacity retention 79.6% 4.4 V, exhibiting great potential for practical use. work provides insightful guidance constructing CEI bypass limitations associated high-voltage operations cathodes.

Language: Английский

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Working Principles of High-Entropy Electrolytes in Rechargeable Batteries

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(6), P. 2960 - 2980

Published: May 28, 2024

Rechargeable batteries are considered to be one of the most feasible solutions energy crisis and environmental pollution. As a bridge between cathode anode battery, electrolytes play critical roles in improving battery performance. Recently, high-entropy (HEEs) with unique properties were proposed. Specifically, HEEs can accelerate ionic diffusion kinetics promote dissolution salts as well broaden operating temperature batteries. This Review provides comprehensive summary application working mechanisms rechargeable First, motivation, history, definitions introduced. Then, enhancing electrochemical performance liquid solid-state presented, especially conductivity achieving wide range. Finally, current issues possible future directions new perspective on design high-performance electrolytes.

Language: Английский

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Achieving High‐Performance Lithium–Sulfur Batteries by Modulating Li⁺ Desolvation Barrier with Liquid Crystal Polymers

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(29)

Published: April 25, 2024

Abstract Lithium–sulfur (Li–S) batteries offer high theoretical capacity but are hindered by poor rate capability and cycling stability due to sluggish Li 2 S precipitation kinetics. Here a sulfonate‐group‐rich liquid crystal polymer (poly‐2,2′‐disulfonyl‐4,4′‐benzidine terephthalamide, PBDT) is designed fabricated accelerate promoting the desolvation of + from electrolyte. PBDT‐modified separators employed assemble Li–S batteries, which deliver remarkable (761 mAh g −1 at 4 C) (500 cycles with an average decay 0.088% per cycle 0.5 C). A PBDT‐based pouch cell even delivers exceptional ≈1400 areal ≈11 cm −2 under lean‐electrolyte high‐sulfur‐loading condition, demonstrating promise for practical applications. Results Raman spectra, molecular dynamic (MD) density functional theory (DFT) calculations reveal that abundant anionic sulfonate groups PBDT aid in attenuating ‐solvent interactions lowering energy barrier. Plus, polysulfide adsorption/catalysis also excluded via electrostatic repulsion. This work elucidates critical impact on provides new design direction advanced batteries.

Language: Английский

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Superior Li⁺ Kinetics by “Low-Activity-Solvent” Engineering for Stable Lithium Metal Batteries

Nano Letters, Journal Year: 2024, Volume and Issue: 24(19), P. 5714 - 5721

Published: May 2, 2024

The structure of solvated Li+ has a significant influence on the electrolyte/electrode interphase (EEI) components and desolvation energy barrier, which are two key factors in determining diffusion kinetics lithium metal batteries. Herein, "solvent activity" concept is proposed to quantitatively describe correlation between electrolyte elements Li+. Through fitting electrode potential solvent concentration, we suggest "low-activity-solvent" (LASE) system for deriving stable inorganic-rich EEI. Nano LiF particles, as model, were used capture free molecules formation LASE system. This advanced not only exhibits outstanding antidendrite growth behavior but also delivers an impressive performance Li/LiNi0.8Co0.1Mn0.1O2 cells (a capacity 169 mAh g–1 after 250 cycles at 0.5 C).

Language: Английский

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Electrochemical deposition of Li2S2/Li2S in aprotic Li–S batteries

Particuology, Journal Year: 2024, Volume and Issue: 90, P. 516 - 521

Published: Feb. 2, 2024

Language: Английский

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Unveiling the Mysteries: Acetonitrile's Dance with Weakly‐Solvating Electrolytes in Shaping Gas Evolution and Electrochemical Performance of Zinc‐ion Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(19)

Published: March 8, 2024

Abstract Aqueous Zn‐metal battery (AZMB) is a promising candidate for future large‐scale energy storage with commendable capacity, exceptional safety characteristics, and low cost. Acetonitrile (AN) has been widely used as an effective electrolyte constituent to improve AZMBs’ performance. However, its functioning mechanisms remain unclear. In this study, we unveiled the critical roles of AN in AZMBs via comparative situ electrochemical, gaseous, morphological analyses. Despite limited ability solvate Zn ions, AN‐modulated Zn‐ion solvation sheath increased anions decreased water achieves weakly‐solvating electrolyte. As result, Zn||Zn cell addition exhibited 63 times longer cycle life than without achieved 4 Ah cm −2 accumulated capacity no H 2 generation. V O 5 ||Zn cells, first time, suppressing CO generation, elevating ‐initiation voltage from 2→2.44 (H : 2.43→2.55 V) was discovered. AN‐impeded transit Zn‐side deposition dissolved vanadium known “crosstalk,” ameliorated inhomogeneous dendritic growth. At last, demonstrated AN‐enabled high‐areal‐capacity AZMB (3.3 mAh ) using high‐mass‐loading cathode (26 mg ). This study shed light on strategy constructing fast‐desolvation electrolytes offered insights accommodation high‐voltage cathodes.

Language: Английский

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