Fast‐Charging Anode Materials for Sodium‐Ion Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(35)

Published: June 26, 2024

Sodium-ion batteries (SIBs) have undergone rapid development as a complementary technology to lithium-ion due abundant sodium resources. However, the extended charging time and low energy density pose significant challenge widespread use of SIBs in electric vehicles. To overcome this hurdle, there is considerable focus on developing fast-charging anode materials with Na⁺ diffusion superior reaction kinetics. Here, key factors that limit fast are examined, which provides comprehensive overview major advances characteristics across various materials. Specifically, it systematically dissects considerations enhance rate performance materials, encompassing aspects such porous engineering, electrolyte desolvation strategies, electrode/electrolyte interphase, electronic conductivity/ion diffusivity, pseudocapacitive ion storage. Finally, direction prospects for also proposed, aiming provide valuable reference further advancement high-power SIBs.

Language: Английский

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Self‐Assembled 2D VS₂/Ti₃C₂T_x MXene Nanostructures with Ultrafast Kinetics for Superior Electrochemical Sodium‐Ion Storage

Advanced Science, Journal Year: 2023, Volume and Issue: 10(31)

Published: Aug. 27, 2023

Constructing nanostructures with high structural stability and ultrafast electrochemical reaction kinetics as anodes for sodium-ion batteries (SIBs) is a big challenge. Herein, the robust 2D VS2 / Ti3 C2 Tx MXene strong Ti─S covalent bond synthesized by one-pot self-assembly approach are developed. The interfacial interaction renders material of good durability enhanced kinetics. Meanwhile, enlarged few-layered nanosheets can be easily obtained according to this interaction, providing conductive network sufficient electrolyte penetration rapid charge transfer. As predicted, /MXene exhibit an extremely low sodium diffusion barrier confirmed DFT calculations small transfer impedance evidenced spectroscopy (EIS) analysis. Therefore, SIBs based on electrode present first-class performance ultrahigh average initial columbic efficiency 95.08% excellent storage capacity 424.6 mAh g-1 even at 10 A . It also shows outstanding 514.2 1 retention nearly 100% within 500 times high-rate cycling. Such impressive demonstrates successful synthesis strategy great potential interactions high-performance energy devices.

Language: Английский

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Advanced Insights on MXenes: Categories, Properties, Synthesis, and Applications in Alkali Metal Ion Batteries

ACS Nano, Journal Year: 2024, Volume and Issue: 18(22), P. 14050 - 14084

Published: May 23, 2024

The development and optimization of promising anode material for next-generation alkali metal ion batteries are significant clean energy evolution. 2D MXenes have drawn extensive attention in electrochemical storage applications, due to their multiple advantages including excellent conductivity, robust mechanical properties, hydrophilicity its functional terminations, outstanding capability. In this review, the categories, synthesis methods first outlined. Furthermore, latest research progress composites also summarized comprehensively. A special emphasis is placed on hybrids, ranging from design fabrication fundamental understanding mechanisms battery performance strategies. Lastly, challenges personal perspectives future presented.

Language: Английский

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Boosting reaction kinetics of polycrystalline phase Fe₇S₈/FeS₂ heterostructures encapsulated in hollow carbon nanofibers for superior fast sodium storage

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(19), P. 11266 - 11276

Published: Jan. 1, 2024

An Fe 7 S 8 /FeS 2 heterojunction grown in hollow fibers was designed. This can regulate the valence state of iron sulfide, further change its crystal phase, increase diffusion coefficient, and contribute to high-rate SIBs.

Language: Английский

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Controlled synthesis of multi-doped highly-disordered porous biomass carbon microsphere for ultra-stable and fast sodium storage

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 83, P. 110619 - 110619

Published: Feb. 1, 2024

Language: Английский

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Unraveling the Ionic Storage Mechanism of Flexible Nitrogen‐Doped MXene Films for High‐Performance Aqueous Hybrid Supercapacitors

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Abstract 2D MXene nanomaterials have excellent potential for application in novel electrochemical energy storage technologies such as supercapacitors and batteries, but the existing pure is difficult to meet practical needs. Although properties of modified been improved, unclear ion mechanism still hinders development MXene‐based electrode materials. Herein, study develops flexible self‐supported nitrogen‐doped Ti 3 C 2 (Py‐Ti ) films by highly mobile, high nitrogen content, oxygen‐free pyridine‐assisted solvothermal method, then deeply investigates hybrid four aqueous electrolytes (H SO 4 , Li Na MgSO ). The experimental results suggest that Py‐Ti film exhibits a pseudocapacitance‐dominated mechanism. Particularly, specific capacity 1 M H (506 F g −1 at 0.1 A 4–5 times higher than other (≈110 ), which could be attributed substantially ionic diffusion coefficient + those Mg 2+ with small size, conductivity, fast pseudocapacitance response. Theoretical analysis further confirms has strengthened conductivity electrical double‐layer capacitance performance. Meanwhile, it lower free protonation deprotonation functional groups, gives

Language: Английский

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Quantitative detection of multi-component chemical gas via MXene-based sensor array driven by triboelectric nanogenerators with CNN-GRU model

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 417, P. 136101 - 136101

Published: June 6, 2024

Language: Английский

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Emerging transition metal sulfide/MXene composites for the application of electrochemical energy storage

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156272 - 156272

Published: Sept. 1, 2024

Language: Английский

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Research Progress on Vanadium Sulfide Anode Materials for Sodium and Potassium‐Ion Batteries

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: 9(11)

Published: Jan. 20, 2024

Abstract Considering environmental changes and the demand for more sustainable energy sources, stricter requirements have been placed on electrode materials sodium potassium‐ion batteries, which are expected to provide higher power density while being affordable sustainable. Vanadium sulfide‐based emerged as intriguing contenders next generation of anode due their high theoretical capacity, abundant reserves, cost‐effectiveness. Despite these advantages, challenges such limited cycle life restricted ion diffusion coefficients continue impede effective application in batteries. To overcome limitations associated with electrochemical performance circumvent bottlenecks imposed by inherent properties at bulk scale, this review comprehensively summarizes analyzes crystal structures, modification strategies, storage processes vanadium The objective is guide development high‐performance vanadium‐based sulfide refined morphologies and/or employing environmentally friendly cost‐efficient methods. Finally, future perspectives research suggestions presented propel practical applications forward.

Language: Английский

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Rational carbon design and confinement of leaf-like Tin trisulfide@Carbon/MXene Ti3C2Tx for enhanced conductivity and lithium storage kinetics

Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 7(4)

Published: June 27, 2024

Language: Английский

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