Fast‐Charging Anode Materials for Sodium‐Ion Batteries

Advanced Materials, Год журнала: 2024, Номер 36(35)

Опубликована: Июнь 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.

Язык: Английский

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Fast-charging anodes for lithium ion batteries: progress and challenges

Chemical Communications, Год журнала: 2024, Номер 60(18), С. 2472 - 2488

Опубликована: Янв. 1, 2024

This article summarizes the basic principles, current research progress, advanced strategies and challenges of fast-charging anodes.

Язык: Английский

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Engineering High-Performance Li Metal Batteries through Dual-Gradient Porous Cu-CuZn Host

ACS Nano, Год журнала: 2024, Номер 18(21), С. 13662 - 13674

Опубликована: Май 16, 2024

Porous copper (Cu) current collectors show promise in stabilizing Li metal anodes (LMAs). However, insufficient lithiophilicity of pure Cu and limited porosity three-dimensional (3D) porous structures led to an inefficient Li–Cu composite preparation poor electrochemical performance anodes. Herein, we propose a Cu-CuZn (DG-CCZ) host for tackle these issues. This architecture features pore size distribution lithiophilic-lithiophobic characteristics designed gradient from the inside outside anode structure. dual-gradient exhibits exceptional capillary wettability molten provides high up 66.05%. design promotes preferential deposition interior structure during battery operation, effectively inhibiting dendrite formation. Consequently, all cell systems achieve significantly improved cycling stability, including half-cells, Li–Li symmetric cells, Li-LFP full cells. When paired synergistically with double-coated LiFePO4 cathode, pouch configured multiple electrodes demonstrates impressive discharge capacity 159.3 mAh g–1 at 1C. We believe this study can inspire future 3D enhanced utilization efficiency facilitate development high-energy batteries.

Язык: Английский

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Recent Advances in the Application of Magnetite (Fe₃O₄) in Lithium-Ion Batteries: Synthesis, Electrochemical Performance, and Characterization Techniques

Chemistry of Materials, Год журнала: 2024, Номер 36(19), С. 9299 - 9319

Опубликована: Сен. 18, 2024

With the promotion of portable energy storage devices and popularization electric vehicles, lithium-ion battery (LiB) technology plays a crucial role in modern systems. Over past decade, demands for LiBs have centered around high density long cycle life. These parameters are often determined by characteristics active materials electrodes. Given its abundance, environmental friendliness, low cost capacity, magnetite (Fe

Язык: Английский

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Macroscopically uniform interface layer with Li+ conductive channels for high-performance Li metal batteries

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Ноя. 20, 2024

The numerous grainboundaries solid electrolyte interface, whether naturally occurring or artificially designed, leads to non-uniform Li metal deposition and consequently results in poor full-battery performance. Herein, a lithium-ion selective transport layer is reported achieve highly efficient dendrite-free lithium anode. layer-by-layer assembled protonated carbon nitride nanosheets present uniform macroscopical structure without grainboundaries. with ordered pores basal plane provides high-speed channels low tortuosity. Consequently, the 324 Wh kg−1 pouch cell exhibits 300 stable cycles capacity retention of 90.0% an average Coulombic efficiency up 99.7%. ultra-dense anode makes current collector-free possible, achieving high energy density long cycle life 7 Ah (506 kg−1, 160 cycles). Thus, it proved that macroscopically interface conductive could battery promising application potential. Here, authors report grain boundary-free microscopic + -selective enables deposition, resulting kg−1) (160 cycles)

Язык: Английский

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Spongy Silicon‐Doped MoS₂ via Long‐Chain Molecule Induction and Mesopore Confinement for Ultra‐Stable Lithium‐Ion Storage

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Abstract Layered transition metal dichalcogenides (LTMDs), such as MoS 2 , are promising anode materials for high‐energy‐density lithium‐ion batteries (LIBs) due to their high specific capacities. However, practical applications hindered by poor cycling stability resulting from the instable structure during charge/discharge and inherently low electronic conductivity. To tackle these issues, herein, this study presents design synthesis of spongy silicon‐doped induced long‐chain molecules in mesopores. The material consists few‐layered nanofragments with porosity, abundant edge sites sulfur vacancies. These structural features can promote Li + transport accommodate electrode volume changes charge/discharge. Electrochemical theoretical analyses reveal that silicon doping enhances conductivity while nanostructure enables reversible Li⁺ diffusion along edges, distinct storage interlayers conventional anodes. Notably, delivers a capacity 767.9 mAh g −1 at 0.1 A exhibits remarkable rate capability. Moreover, it demonstrates superior over 83% retention even after 1000 cycles 1.0 outperforming most existing ‐based materials. This work paves new way designing high‐performance LTMD‐based anodes LIBs beyond.

Язык: Английский

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Crystallographic Engineering in Micron-Sized SiO_x Anode Material Toward Stable High-Energy-Density Lithium-Ion Batteries

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

The SiOx anode exhibits a high specific capacity and commendable durability for lithium-ion batteries (LIBs). However, its practical application is hindered by significant volumetric fluctuations during lithiation/delithiation, alongside metastable nature, which induces mechanical instability irreversible lithium consumption, ultimately impairing long-term retention in full-battery cell configurations. In this study, we present phase-engineering approach designed to improve the structural stability of anodes LIB applications. By incorporating fluoride, amorphous undergoes partial transformation into quartz-like phase, enhances integrity mitigates loss. This modified demonstrates significantly improved prolonged cycle lifespan. Through combination multiscale simulations situ characterizations, elucidate stabilization mechanisms conferred quartz providing critical insights role SiOx's crystal structure influencing degradation pathways. work introduces an accessible efficient method controlling crystallinity SiOx, offering solution enhance high-energy-density LIBs.

Язык: Английский

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A Dual-Heterostructure Enables the Stabilization of 1T-rich MoSe₂ for Enhanced Sodium Ion Storage

Chemical Science, Год журнала: 2024, Номер 15(28), С. 11134 - 11144

Опубликована: Янв. 1, 2024

A dual heterostructure designed to stabilize 1T-rich MoSe 2 upon conversion cycles for superior performance of sodium-ion storage.

Язык: Английский

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Cationic Metal–Organic Framework Arrays to Enable Dendrite-Free Lithium Metal Anodes

ACS Energy Letters, Год журнала: 2024, Номер 9(8), С. 3746 - 3753

Опубликована: Июль 8, 2024

Язык: Английский

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High-Rate SiO Lithium-Ion Battery Anode Enabled by Rationally Interfacial Hybrid Encapsulation Engineering

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(5), С. 5915 - 5925

Опубликована: Янв. 26, 2024

The development of a high-rate SiO lithium-ion battery anode is seriously limited by its low intrinsic conductivity, sluggish interfacial charge transfer (ICT), and unstable dynamic interface. To tackle the above issues, encapsulation engineering for effectively regulating reaction thus realizing stable solid electrolyte interphase significantly important. Hybrid coating, which aims to enhance coupled e-/Li+ transport via employment dual layers, has emerged as promising strategy. Herein, we construct hybrid MXene-graphene oxide (GO) coating layer on microparticles. In design, Ti3C2Tx MXene acts "bridge", forms close covalent connection with GO through Ti-O-Si Ti-O-C bonds, respectively, greatly reducing ICT resistance. Moreover, rich surface groups (e.g., -OH, -F) outer layers an intertwined porous framework synergistically enable pseudocapacitance dominated behavior, beneficial fast storage. Accordingly, as-made Si@MXene@GO exhibits considerably reinforced storage performance in terms superior rate (1175.9 mA h g-1 at 5 A g-1) long cycling stability (1087.6 capacity retained after 1000 cycles 2.0 g-1). In-depth chemical composition analysis further reveals that inorganically gradient distribution LiF Li2O formed electrolyte/anode interface ensures mechanical during repeated cycles. This work paves feasible way maximizing potential anodes toward fast-charging batteries.

Язык: Английский

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