Achieving Uniform Li Plating/Stripping at Ultrahigh Currents and Capacities by Optimizing 3D Nucleation Sites and Li₂Se‐Enriched SEI

Advanced Science, Journal Year: 2022, Volume and Issue: 9(9)

Published: Jan. 24, 2022

Lithium (Li) has garnered considerable attention as an alternative anodes of next-generation high-performance batteries owing to its prominent theoretical specific capacity. However, the commercialization Li metal (LMAs) is significantly compromised by non-uniform deposition and inferior electrolyte-anode interfaces, particularly at high currents capacities. Herein, a hierarchical three-dimentional structure with CoSe

Language: Английский

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All-Solid-State Thin-Film Lithium-Sulfur Batteries

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: March 27, 2023

Lithium-sulfur (Li-S) system coupled with thin-film solid electrolyte as a novel high-energy micro-battery has enormous potential for complementing embedded energy harvesters to enable the autonomy of Internet Things microdevice. However, volatility in high vacuum and intrinsic sluggish kinetics S hinder researchers from empirically integrating it into all-solid-state batteries, leading inexperience fabricating Li-S batteries (TFLSBs). Herein, first time, TFLSBs have been successfully constructed by stacking vertical graphene nanosheets-Li2S (VGs-Li2S) composite cathode, lithium-phosphorous-oxynitride (LiPON) electrolyte, Li metal anode. Fundamentally eliminating Li-polysulfide shuttle effect maintaining stable VGs-Li2S/LiPON interface upon prolonged cycles well identified employing solid-state an "unlimited Li" reservoir, which exhibits excellent long-term cycling stability capacity retention 81% 3,000 cycles, exceptional temperature tolerance up 60 °C. More impressively, VGs-Li2S-based evaporated-Li anode also demonstrate outstanding performance over 500 Coulombic efficiency 99.71%. Collectively, this study presents new development strategy secure high-performance rechargeable batteries.

Language: Английский

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Hierarchical Li electrochemistry using alloy-type anode for high-energy-density Li metal batteries

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 14, 2024

Abstract Exploiting thin Li metal anode is essential for high-energy-density battery, but severely plagued by the poor processability of Li, as well uncontrollable plating/stripping behaviors and Li/electrolyte interface. Herein, a thickness/capacity-adjustable alloy-type Li/LiZn@Cu fabricated batteries. The as-formed lithophilic LiZn alloy in can effectively regulate stabilize interface to deliver hierarchical electrochemistry. Upon charging, firstly acts source homogeneous extraction. At end de-alloy nanostructures further supplements extraction, actually playing compensation role battery cycling. While upon discharging, forms just at beginning, thereby regulating following deposition. reversibility such an interesting process undoubtedly verified from electrochemistry in-situ XRD characterization. This work sheds light on facile fabrication practical anodes useful materials

Language: Английский

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Multi-functional bilayer carbon structures with micrometer-level physical encapsulation as a flexible cathode host for high-performance lithium-sulfur batteries

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 451, P. 139017 - 139017

Published: Sept. 5, 2022

Language: Английский

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Integrative design of laser-induced graphene array with lithiophilic MnOx nanoparticles enables superior lithium metal batteries

eScience, Journal Year: 2023, Volume and Issue: 3(5), P. 100134 - 100134

Published: April 18, 2023

The practical applications of lithium metal batteries are limited by uncontrolled dendrite growth during cycling. Herein, we propose a simple and scalable approach to stabilize anodes using laser scribing technology integratively design construct laser-induced graphene (LIG) with lithiophilic oxide nanoparticles. porous LIG MnOx nanoparticles effectively reduce the nucleation overpotential Li regulate uniform plating, while array structure offers continuous ultra-fast ion/electron transport channels, accelerating Li+ kinetics at high rate capacity. Consequently, [email protected]x@LIG-a anode exhibits superior capability up 40 mA cm−2 low overpotential. It also can withstand ultra-high capacity 20 mAh without stably cycle for 3000 h 100% depth discharge cm−2. More importantly, this be expanded other oxides various batteries.

Language: Английский

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MOF‐Derived Materials Enabled Lithiophilic 3D Hosts for Lithium Metal Anode — A Review

Chinese Journal of Chemistry, Journal Year: 2023, Volume and Issue: 41(15), P. 1861 - 1874

Published: Feb. 9, 2023

Comprehensive Summary This work systematically reviews recent progresses in the applications of MOF‐derived materials modified 3D porous conductive framework as hosts for uniform lithium deposition LMBs. A series commonly used lithiophilic and several kinds representative MOF‐derivation‐modified metal anode (LMA) are presented. Finally, challenges future development employing to modify LMA included.

Language: Английский

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Enhancing rate performance in lithium-sulfur batteries via synergistic bidirectional catalysis and improved conductivity

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160022 - 160022

Published: Jan. 1, 2025

Language: Английский

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Lithiophilic Interphase Porous Buffer Layer toward Uniform Nucleation in Lithium Metal Anodes

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(39)

Published: July 20, 2022

Abstract Lithium metal batteries are highly desired for durable and high‐power energy storage devices due to high theoretical capacity lowest redox potential. Nevertheless, activity of Li, large volume change, Li dendrite formation during cycling severely hinder their further application. Herein, an inventive Cu collector decorated with holey MoO 2 ‐Mo 3 N heterojunction nanobelts‐coated reductive graphene oxide (G‐MoO , GMM) high‐performance is reported. The features synergistic functions remarkable lithiophilicity, a built‐in electric field formed by splendid interfacial contact, dense lithiophilic‐enriched solid electrolyte interphase layer. They facilitate robust charge transfer ionic diffusion, meliorate inhomogenous Li‐ion flux inhibiting the growth dendrites. In addition, incorporation flexible layer enhances structural integrity electron transport kinetics. Remarkably, it demonstrated that GMM significantly Coulombic efficiency ≈99.5% over 1566 cycles (0.5 mA cm −2 /0.5 mAh ). Furthermore, excellent rate capability full cells GMM@Cu anode areal loading LiFePO 4 cathode (22.2 mg ) also realized. This work illustrates superiority synergetic design lithiophilic sites plus kinetics current Li‐metal seek density.

Language: Английский

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Advanced Three-Dimensional Microelectrode Architecture Design for High-Performance On-Chip Micro-Supercapacitors

ACS Nano, Journal Year: 2022, Volume and Issue: 16(11), P. 17593 - 17612

Published: Nov. 11, 2022

The rapid development of miniaturized electronic devices has greatly stimulated the endless pursuit high-performance on-chip micro-supercapacitors (MSCs) delivering both high energy and power densities. To this end, an advanced three-dimensional (3D) microelectrode architecture design offers enormous opportunities due to mass loading active materials, large specific surface areas, fast ion diffusion kinetics, short electron transport pathways. In review, we summarize recent advances in rational 3D architectured microelectrodes including dense microelectrodes, nanoporous macroporous microelectrodes. Furthermore, emergent microfabrication strategies are discussed detail terms charge storage mechanisms structure-performance correlation for MSCs. Finally, conclude with a perspective on future challenges thriving field.

Language: Английский

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Ultrahigh-power iron oxysulfide thin films for microbatteries

Science China Materials, Journal Year: 2022, Volume and Issue: 66(1), P. 118 - 126

Published: Sept. 5, 2022

Language: Английский

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