Engineering Triple‐Phase Interfaces around the Anode toward Practical Alkali Metal–Air Batteries

Advanced Materials, Год журнала: 2024, Номер 36(27)

Опубликована: Апрель 18, 2024

Alkali metal-air batteries (AMABs) promise ultrahigh gravimetric energy densities, while the inherent poor cycle stability hinders their practical application. To address this challenge, most previous efforts are devoted to advancing air cathodes with high electrocatalytic activity. Recent studies have underlined solid-liquid-gas triple-phase interface around anode can play far more significant roles than previously acknowledged by scientific community. Besides bottlenecks of uncontrollable dendrite growth and gas evolution in conventional alkali metal batteries, corrosive gases, intermediate oxygen species, redox mediators AMABs cause severe corrosion structural collapse, posing greater challenges stabilization interface. This work aims provide a timely perspective on engineering for durable AMABs. Taking Li-air battery as typical example, critical review shows latest developed strategies, including formulating electrolytes build protective interphases, fabricating advanced anodes improve anti-corrosion capability, designing functional separator shield species. Finally, remaining technical issues from prospects highlighted, particularly materials system engineering, use

Язык: Английский

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Working Principles of High-Entropy Electrolytes in Rechargeable Batteries

ACS Energy Letters, Год журнала: 2024, Номер 9(6), С. 2960 - 2980

Опубликована: Май 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.

Язык: Английский

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Multi-Functional Nitrile-Based Electrolyte Additives Enable Stable Lithium Metal Batteries with High-Voltage Nickel-rich Cathode

Chemical Science, Год журнала: 2025, Номер 16(10), С. 4501 - 4511

Опубликована: Янв. 1, 2025

A rechargeable lithium (Li) metal anode combined with a high-voltage nickel-rich layered cathode has been considered promising combination for high-energy Li batteries (LMBs). However, they usually suffer from insufficient cycling life because of the unstable electrochemical stability both electrodes. In this work, we report an advanced multi-functional additive, 1,3,6-hexanetricarbonitrile (HTCN), in conventional carbonate-based electrolyte. This rationally designed electrolyte formation generates ideal interphase (CEI) LiNi0.8Co0.1Mn0.1O2 (NCM811) and solid (SEI) metal, successfully realizing stable ion transport kinetics. Then, theoretical calculations, physical characterization tests confirm that HTCN is more easily adsorbed on NCM811 surface where it oxidized to construct CEI film involving detachment CN group linear chain. Simultaneously, shows negative electron affinity easier reduce, constructing robust SEI resulting side Consequently, assembled 50 μm-thin NCM811//Li (9.0 mg cm-2 mass loading) delivers desired energy density ∼330 W h kg-1 at cell level excellent 120 cycles 88% capacity retention 1C.

Язык: Английский

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SnF2‐Catalyzed Lithiophilic–Lithiophobic Gradient Interface for High‐Rate PEO‐based All‐Solid‐State Batteries

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(44)

Опубликована: Авг. 2, 2024

Abstract Polyethylene oxide (PEO)‐based all‐solid‐state lithium metal batteries (ASSLMBs) are strongly hindered by the fast dendrite growth at Li metal/electrolyte interface, especially under large rates. The above issue stems from suboptimal interfacial chemistry and poor + transport kinetics during cycling. Herein, a SnF 2 ‐catalyzed lithiophilic‐lithiophobic gradient solid electrolyte interphase (SCG‐SEI) of x Sn y /LiF‐Li O is in situ formed. superior ionic LiF‐Li rich upper layer (17.1 nm) possesses high energy diffusion channels, wherein lithiophilic alloy (8.4 could highly reduce nucleation overpotential with lower barrier promote rapid electron transportation for reversible plating/stripping. Simultaneously, insoluble ‐coordinated PEO promotes ion bulk phase. As result, an over 46.7 3.5 times improvements lifespan critical current density symmetrical cells achieved, respectively. Furthermore, LiFePO 4 ‐based ASSLMBs deliver recorded cycling performance 5 C (over 1000 cycles capacity retention 80.0 %). More importantly, impressive electrochemical performances safety tests LiNi 0.8 Mn 0.1 Co pouch cell , even extreme conditions (i.e., 100 °C), also demonstrated, reconfirmed importance design high‐rate applications.

Язык: Английский

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Amorphous High‐Entropy Alloy Interphase for Stable Lithium Metal Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(40)

Опубликована: Июль 22, 2024

Abstract The unstable anode/electrolyte interphase induces severe lithium dendrite growth hindering the practical application of metal batteries. alloy presents a promising strategy for regulating Li + plating/stripping behavior. However, binary or ternary alloys are insufficient to address various challenges in batteries and high temperature required preparation hampers their direct applications on surfaces. In this study, high‐entropy (HEA) is developed surfaces via room‐temperature magnetron sputtering, showcasing multifunctional advantages cocktail effect facilitated formation homogeneous amorphous with abundant lithiophilic sites magnetic properties, promoting uniform nucleation deposition. Furthermore, mechanical strength corrosion resistance HEA provided physicochemical stability anode interphase, consistently suppressing growth. Consequently, anodes interphases exhibited robust cycling performance lasting over 4000 h at 2 mA cm −2 . LFP full battery demonstrated high‐capacity retention 90% an average Coulombic efficiency 99.7%. Thus, offer controllable regulation deposition behavior through manipulation, opening novel strategies stable

Язык: Английский

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Regulating the zinc ion transport kinetics of Mn3O4 through copper doping towards high-capacity aqueous Zn-ion battery

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 677, С. 459 - 469

Опубликована: Июль 31, 2024

Язык: Английский

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A universal dual modified strategy of gel polymer electrolyte for efficient sulfur conversion

Journal of Energy Storage, Год журнала: 2025, Номер 109, С. 115133 - 115133

Опубликована: Янв. 5, 2025

Язык: Английский

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Advancements in the emerging rare-earth halide solid electrolytes for next-generation all-solid-state lithium batteries

Coordination Chemistry Reviews, Год журнала: 2025, Номер 528, С. 216432 - 216432

Опубликована: Янв. 11, 2025

Язык: Английский

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High-Voltage-Resistant Highly Stable Solid Polymer Electrolyte via In Situ Integrated Construction with Fast Ion Migration

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

Опубликована: Янв. 22, 2025

Electric aircraft such as electric and vehicles play a key role in the future aviation industry, but they put forward huge requirements for battery energy density. However, current high-energy-density lithium technology still needs to be broken through. Herein, through molecular structure design of polymer electrolyte, strategy fast migration channel wide electrochemical window is proposed fabricate high-voltage-resistant solid electrolyte (HVPE) via situ polymerization. Thus, HVPE exhibits an ultrahigh Li+ transfer number (tLi+) 0.92 excellent 5.1 V match with high-voltage cobalt oxide (LCO) cathode. This conduction allows stable uniform plating stripping deposition more than 1000 h, which also reveals well-defined dual interfacial stabilization mechanism. These results endow assembled LCO|HVPE|Li cell cycles steadily 500 at 4.5 0.5C superior capacity retention 89.93%. Moreover, pouch rate up 94.01% after 50 cycles. More importantly, our provides new insights into structural fabrication strategies solid-state batteries.

Язык: Английский

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Machine Learning‐Assisted Simulations and Predictions for Battery Interfaces

Advanced Intelligent Systems, Год журнала: 2025, Номер unknown

Опубликована: Фев. 28, 2025

As nations worldwide intensify their efforts to achieve environmental goals and reduce carbon emissions, as the energy landscape continues evolve, importance of advanced battery technology becomes increasingly critical. Despite significant advancements, persistent challenges at interfaces—where electrode electrolyte interactions occur—are particular concern. These interfaces play pivotal roles in phenomena such dendrite growth formation solid–electrolyte interphases (SEI), which are crucial for performance, longevity, safety batteries. Machine learning (ML), a vital subset artificial intelligence, offers robust capabilities by autonomously identifying patterns complex datasets, thereby enhancing understanding these intricate interfacial processes. This review highlights recent progress ML‐assisted simulations predictions interfaces, illustrating how ML accelerates research development trajectory. By employing algorithms machine vision, lithium growth, SEI formation, dynamics can be performed. not only deepen comprehension but also serve foundation further material optimization predication property enhancement. The aim this is spur ongoing application address existing challenges, advancing state‐of‐the‐art technologies.

Язык: Английский

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