Rational Design of Carbon Covered V2O3‐x Decorated Amorphous MoO2 Double‐Core–Shell Structure Facilitates Ultra‐High Stability and High‐Rate Performance in Lithium‐ion Batteries DOI

Gaoyuan Liu,

Wei Jia,

Xinxin Yin

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract Amorphous materials, which bear unique atomic arrangements, have garnered significant study on lithium‐ion batteries due to inherent properties, including isotropy and defect distribution. Herein, a novel amorphous MoO 2‐ x @V 2 O 3‐ @C double‐core–shell structure is ingeniously designed by simple solvothermal pyrolytic reactions, the valence states of V 3 are precisely characterized using X‐ray absorption near‐edge spectroscopic measurements. In situ XRD, in EIS density functional theory calculations confirm that enhances electronic conductivity @C‐2, optimizes Li + relocation paths associated energy barriers, thus improving diffusion kinetics. Furthermore, formation layer, along with establishment 3D network carbon, enhanced mitigated swelling electrodes, thereby stability during battery cycling. Benefiting from this multiscale coordinated design, optimized electrodes exhibit high discharge capacity 477.5 mAh g −1 at 10.0 A , exceptional cycling stability, showing minimal loss even after undergoing 1000 cycles 20.0 . Additionally, @C||LiCoO full maintain good over 300 cycles. The proposed core–shell fabrication concept offers insights into developing advanced high‐efficiency storage materials.

Language: Английский

Porous carbon nanoflakes constructed from anthracite-derived aromatic fragments as efficient anode for lithium-ion storage DOI
Xue Wang, Huihui Zeng, Baolin Xing

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 118, P. 116268 - 116268

Published: March 17, 2025

Language: Английский

Citations

0
Carbonaceous Materials as Anodes for Lithium-Ion and Sodium-Ion Batteries DOI Creative Commons

Koorosh Nikgoftar,

Anil Kumar Madikere Raghunatha Reddy, M. V. Reddy

et al.

Batteries, Journal Year: 2025, Volume and Issue: 11(4), P. 123 - 123

Published: March 25, 2025

The increasing global population and, thus, energy demand have made research into renewable sources more critical. Lithium-ion batteries (LIBs) and sodium-ion (SIBs) been recognized as the most promising technologies for storing effectively addressing this demand. Carbonaceous materials are widespread anode material due to their fascinating features, such high theoretical capacity, electrical conductivity, excellent structural stability. Additionally, these materials’ abundance, cost-effectiveness, environmental friendliness emphasized need further investigation development. Among carbon-based materials, graphite (both artificial natural) stands out ubiquitous its layered crystal structure, mechanical strength, long cycle life, safety profile, making it ideal intercalation with lithium sodium. In recent years, extensive has conducted enhance efficiency of anodes ultimately, overall performance batteries. review, role carbonaceous in lithium-ion was comprehensively investigated, focusing on advancements synthesizing optimizing graphite. Furthermore, mechanism factors influencing electrochemical properties both LIBs SIBs were extensively discussed. This work also provides a holistic perspective differences between two types batteries, highlighting cost, applications, future potential advancement.

Language: Английский

Citations

0
Rational Design of Carbon Covered V2O3‐x Decorated Amorphous MoO2 Double‐Core–Shell Structure Facilitates Ultra‐High Stability and High‐Rate Performance in Lithium‐ion Batteries DOI

Gaoyuan Liu,

Wei Jia,

Xinxin Yin

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract Amorphous materials, which bear unique atomic arrangements, have garnered significant study on lithium‐ion batteries due to inherent properties, including isotropy and defect distribution. Herein, a novel amorphous MoO 2‐ x @V 2 O 3‐ @C double‐core–shell structure is ingeniously designed by simple solvothermal pyrolytic reactions, the valence states of V 3 are precisely characterized using X‐ray absorption near‐edge spectroscopic measurements. In situ XRD, in EIS density functional theory calculations confirm that enhances electronic conductivity @C‐2, optimizes Li + relocation paths associated energy barriers, thus improving diffusion kinetics. Furthermore, formation layer, along with establishment 3D network carbon, enhanced mitigated swelling electrodes, thereby stability during battery cycling. Benefiting from this multiscale coordinated design, optimized electrodes exhibit high discharge capacity 477.5 mAh g −1 at 10.0 A , exceptional cycling stability, showing minimal loss even after undergoing 1000 cycles 20.0 . Additionally, @C||LiCoO full maintain good over 300 cycles. The proposed core–shell fabrication concept offers insights into developing advanced high‐efficiency storage materials.

Language: Английский

Citations

0