Unveiling the recent advances in micro-electrode materials and configurations for sodium-ion micro-batteries

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(29), С. 17923 - 17957

Опубликована: Янв. 1, 2024

The recent advances in portable and smart devices require modern microelectronics to be miniaturized, leading the need for small, lightweight, reliable, on-chip integrated energy storage systems like rechargeable micro-batteries (μBs).

Язык: Английский

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Accurately predicting decomposition potential of electrolyte additives by voltage relaxation curve analysis

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160884 - 160884

Опубликована: Фев. 1, 2025

Язык: Английский

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Recent Advances in In Situ Characterization of the Electrochemical Processes at the Alloy Anode-Electrolyte Interfaces

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Lithium-metal batteries (LMBs) have garnered widespread attention due to their high energy density. Alloy anodes are particularly notable for exceptional specific capacity used in LMBs. However, alloy encounter significant challenges interfacial issues, which include sluggish reaction kinetics and mechanical failures induced by force-electric coupling at the interface. In situ characterization of interface evolution is crucial gain a deeper understanding fundamental origins these issues. This review systematically examines associated with highlights role techniques elucidating kinetics, mechanisms, dendrite formation anode-electrolyte The future development this field proposed outlook.

Язык: Английский

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Promoting Robust and Rapid Na‐Ion Storage of Molybdenum‐Based Sulfide via Rational Hetero and Hollow Structure Design

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Molybdenum disulfide (MoS 2 ), characterized by its two‐dimensional structure and high theoretical specific capacity, is considered a prospective anode of Na‐ion battery. However, the cycling rate capabilities are hampered sluggish charge transfer kinetics poor structural stability. To overcome issues, most efforts have been focused on optimizing MoS . Nevertheless, rationally designing that can present rapid durable storage while ensuring large remains challenges. Herein, /MnS heterostructure featuring sphere‐like hollow morphology designed according to Ostwald ripening process Kirkendall effect. This construction effectively establish an interfacial built‐in electric field activated MnS , which exhibit P‐type N‐type semiconductor characteristics, respectively, thereby promoting electrochemical kinetics. Moreover, excellent stability after repeated (de)sodiation processes remarkably achieved thanks robust design, significantly achieving outstanding tolerance changes. Consequently, delivers capacity (594.8 mAh g −1 at 0.1 A superior performance (up 100 ultrastable capability (30 000 cycles with ≈81.4% retention). The work affords effective optimization tactic develop high‐performance conversion‐type electrodes for alkali‐ion batteries.

Язык: Английский

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A comprehensive review of liquid electrolytes for silicon anodes in lithium-ion batteries

Опубликована: Март 25, 2025

Abstract Silicon anodes show great potential for next-generation lithium-ion batteries due to their exceptional energy storage capacity. However, practical application is hindered by challenges such as significant volume changes during cycling and the formation of unstable interphases. This review explores recent advancements in electrolyte design strategies that address these challenges. A thorough analysis various solvent systems, salts, functional additives examines roles stabilizing interphases mitigating degradation processes. The focuses on innovative formulations optimize ionic conductivity, enhance mechanical resilience, ensure long-term stability. By examining interaction between components silicon’s unique properties, this work provides a framework improving performance reliability silicon-based batteries, which will facilitate adoption high-energy-density applications.

Язык: Английский

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Balancing Defects and Microcrystals in Carbon Anodes by Molecular Chemistry Method for Sodium‐Ion Batteries

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 28, 2024

Abstract Carbon materials with large capacity and low potential serve as promising anode for sodium‐ion batteries (SIBs). defects offer active sites sodium storage but sacrifice reversibility, whereas carbon microcrystals improve conductivity may suffer from capacity. Herein, the balance between is realized by molecular chemistry method of cross‐linking defect repairing. Real‐time spectroscopic analyses reveal that decomposition tetrabromophthalic anhydride (TBPA) molecule induces dehydrogenation pitch to release small gas molecules form pseudo‐closed pores, followed C═O bonds in TBPA dehydrogenated C─O─C thus suppress excessive microcrystal growth. Meanwhile, products can also react repair defects. Thanks microstructure balance, as‐synthesized material exhibits a smoother ion mass transfer channel ( d (002) = 0.386 nm, L 4.56 nm) larger space V pore 0.086 cm 3 g −1 ) than (PC, 0.349 5.90 0.041 ), increasing 162.5 336.5 mAh . This work sheds chemical light on regulating advanced SIBs.

Язык: Английский

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Structure Engineering on Prussian Blue Analog Anode Toward Rapid Na‐Ion Storage

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 31, 2024

Abstract Developing high‐rate electrode materials is a critical enabler of fast‐charging Na‐ion battery (NIB). Prussian blue analog (PBA) with rapid charge transfer channels has shown significant potential as NIB cathodes; however, the capability reported PBA‐based anodes remains limited. This challenge primarily stems from complete transformation their original crystal structures during synthesis processes, resulting in loss inherent channels. Herein, Ni‐Fe based PBA (Ni 3 [Fe(CN) 6 ] 2 ) representative structure presented prototype to investigate its anode, and structural modification strategies are implemented unlock storage. First, conversion reaction mechanism demonstrated Ni sodiation, theoretical specific capacity 357.2 mAh g −1 . However, reversible capacities after long‐term cycling at high rates low. To address these issues, optimization including S incorporation, configurational entropy modulation, coordination environment regulation utilized. Consequently, (≈40 s per 245.0 input) excellent capabilities realized. study demonstrates feasibility anodes, promotes further investigation into aimed developing other electrodes.

Язык: Английский

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Redox‐Mediated Pyrene Electrolytes for Enhancing the Reversibility of Vertically Arranged Tin Electrodes in Seawater Batteries

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

Seawater batteries (SWBs) have emerged as a next-generation battery technology that does not rely on lithium, limited resource essential for lithium-ion batteries. Instead, SWBs utilize abundant sodium from seawater, offering sustainable alternative to conventional technologies. Previous studies demonstrated the feasibility of achieving high energy densities in SWB anodes using vertically aligned electrodes. However, use tin anode materials with volumetric density has encountered reversibility challenges due electrical isolation particles caused by severe pulverization during charging and discharging. In this study, arranged electrodes is improved promoting desodiation pulverized through sodium-pyrene (Na-Pyr) redox mediator. The Na-Pyr redox-mediated electrolyte, combined electrodes, demonstrates reversible capacities 6 mAh cm-2 over 80 cycles SWBs. Furthermore, it shown arranging maximize area can achieve areal capacity up 40 cm-2. combination mediator vertical electrode, its excellent electrochemical performance, promising practical material enabling density.

Язык: Английский

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Formulation principles and synergistic effects of high-voltage electrolytes

Chemical Society Reviews, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The energy density of lithium-ion batteries (LIBs) is primarily determined by the working potential devices and specific capacity cathode compounds. Carbonate-based electrolytes have received considerable attention due to their significance for advancing current cell-assembly process. However, commercially available liquid LiPF6 based cannot withstand harsh high-voltage environment effects cathode, issues such as undesired oxidative decomposition ethylene carbonate (EC), catalytic influence dissolved transition metal ions (TMs), poor performance interphases with unstable morphologies components. Furthermore, complex mechanisms (HVEs) are not fully understood. This review presents a comprehensive summary HVEs, including physical properties, solvation structures, interface chemistry. Specifically, chemical compounds failure commercial investigated, followed discussion expected functions HVEs. Then, screening criteria single-component electrolytes, considering oxidation resistance mechanism, mechanism interphase species explored on level positions. Next, cross-scale evolution framework proposed, from structure characteristics, aimed at uncovering formulation principles synergistic Operational systematically scrutinized, starting conventional tuning incorporation multiple components further role entropy-driven effects, all which will favor understanding effects. Finally, integration advanced computational methods mature experimental techniques foster development novel perspectives promising electrolyte candidates.

Язык: Английский

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Atomic Sn Clusters Engineered Electron-Deficient Carbon Nanofibers Enable Bulk-Interface Synergy for High-Capacity and Durable Lithium-Ion Batteries

Nano Energy, Год журнала: 2025, Номер unknown, С. 110987 - 110987

Опубликована: Апрель 1, 2025

Язык: Английский

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