Relaxing the Jahn–Teller distortion of LiMn_0.6Fe_0.4PO₄ cathodes via Mg/Ni dual-doping for high-rate and long-life Li-ion batteries

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(38), С. 26076 - 26082

Опубликована: Янв. 1, 2024

The synergistic doping of divalent Mg 2+ and Ni ions into a carbon-coated LiMn 0.6 Fe 0.4 PO 4 cathode significantly enhances reaction kinetics structural stability by mitigating the Jahn–Teller effect accelerating Li-ion migration rate.

Язык: Английский

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Enhancing the High-Rate Capability and Cycling Stability of LiMn_0.6Fe_0.4PO₄/C Cathode Materials for Lithium-Ion Batteries by Na⁺ Doping

ACS Applied Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 13, 2024

Язык: Английский

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Stoichiometry-regulated Prussian blue analogue-derived ZnCo2O4 with dual-hierarchical architecture for boosting lithium storage

Materials Today Chemistry, Год журнала: 2025, Номер 46, С. 102767 - 102767

Опубликована: Май 18, 2025

Язык: Английский

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Challenges and Issues Facing Ultrafast-Charging Lithium-Ion Batteries

Batteries, Год журнала: 2025, Номер 11(6), С. 209 - 209

Опубликована: Май 26, 2025

Ultrafast-charging (UFC) technology for electric vehicles (EVs) and energy storage devices has brought with it an increase in demand lithium-ion batteries (LIBs). However, although they pose advantages driving range charging time, LIBs face several challenges such as mechanical degradation, lithium dendrite formation, electrolyte decomposition, concerns about thermal runaway safety. This review evaluates the key advances LIB components (anodes, cathodes, electrolytes, separators, binders), alongside innovations protocols safety concerns. Material-level solutions nanostructuring, doping, composite architectures are investigated to improve ion diffusion, conductivity, electrode stability. Electrolyte modifications, separator enhancements, binder optimizations discussed terms of their roles reducing high-rate degradation. Furthermore, addressed; adjustments can reduce electrochemical stress on LIBs, decreasing capacity fade while providing rapid charging. highlights technological advancements that enabling ultrafast assisting us overcoming severe limitations, paving way development next-generation high-performance LIBs.

Язык: Английский

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Stress‐Induced Anomalous Lithiation Plateau of LiFe_yMn_1−yPO₄ Over High‐Rate Discharging

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 27, 2024

Abstract Olivine‐type LiFe y Mn 1− PO 4 (LFMP) is a promising cathode candidate with high energy density, chemical stability, and cost efficiency. However, an unidentified anomalous lithiation plateau (P II) often emerges between the 2+ /Mn 3+ Fe /Fe redox reactions, leading to decrease in density. Herein, it demonstrated that P II originates from couple, yet differs classical reaction due its lower operating voltage. During lithiation, Li + initially accumulates on particle surface, forming lithium‐rich phase, while interior remains lithium‐poor phase. As proceeds, two‐phase boundary experiences local compressive stress counteracting forces during expansion. This compresses lattice, thereby lowering voltage of inducing formation II. Such effect exacerbated by increased C‐rates higher Mn‐content. Interestingly, acts as double‐edged sword enhancing diffusion kinetics mitigating Jahn–Teller distortion, fully unlocking capacity . Furthermore, particle‐size‐reduction strategy developed address II, which decreases contribution 28.59% 7.77% at 2 C. These findings deepen understanding mechanisms LFMP offer novel insights for developing high‐power/voltage olivine‐type cathodes.

Язык: Английский

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Recovery of spent LiFePO4: Unveiling iron migration mechanism towards selective lithium extraction

Separation and Purification Technology, Год журнала: 2024, Номер unknown, С. 131314 - 131314

Опубликована: Дек. 1, 2024

Язык: Английский

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The Impact of Mil-88a Metalorganic Framework on the Electrochemical Performance of LiMnPO4

Arabian Journal for Science and Engineering, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 7, 2024

Язык: Английский

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