Facilitating Layered Oxide Cathodes Based on Orbital Hybridization for Sodium‐Ion Batteries: Marvelous Air Stability, Controllable High Voltage, and Anion Redox Chemistry

Advanced Materials, Год журнала: 2023, Номер 36(15)

Опубликована: Ноя. 1, 2023

Layered oxides have become the research focus of cathode materials for sodium-ion batteries (SIBs) due to low cost, simple synthesis process, and high specific capacity. However, poor air stability, unstable phase structure under voltage, slow anionic redox kinetics hinder their commercial application. In recent years, concept manipulating orbital hybridization has been proposed simultaneously regulate microelectronic modify surface chemistry environment intrinsically. this review, modes between atoms in 3d/4d transition metal (TM) orbitals O 2p near region Fermi energy level (E

Язык: Английский

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Semi‐Metallic Superionic Layers Suppressing Voltage Fading of Li‐Rich Layered Oxide Towards Superior‐Stable Li‐Ion Batteries

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(37)

Опубликована: Июль 31, 2023

Li-rich layered oxides (LRLOs) with greater specific capacity density are constrained by voltage attenuation and inferior rate performance because of irreversible oxygen release, metal dissolving poor lithium-ion transport capacity. Herein, a simple surface modification is designed to solve the degradation structural collapse LRLOs. Combining experiments functional theory (DFT) calculations, semi-metallic LiMn2 O4 -like structure (LMO) spin-polarized conducting electrons, introduced cathode restrains activated surficial lattice ions its stable vacancies. Additionally, Ni doping results in fast-ion conductor Li0.8 Nb0.96 Ni0.2 O3 (LNO) lowered lithium diffusion barrier, which tightly conjugating substrate synergistically reinforces Li path through cathode-electrolyte interphase. Moreover, Mn dissolution successfully relieved due decrease concentration coating layers. As result, modified material (LRLO@LMO@LNO) exhibits an ultra-high discharge 120.4 mAh g-1 even at 10 C very small 313 mV after 600 cycles (0.52 per cycle) 1 C. Undoubtedly, this method discloses effective approach promote practical utilization high-energy-density.

Язык: Английский

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Recent Advances in High‐Entropy Layered Oxide Cathode Materials for Alkali Metal‐Ion Batteries

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 29, 2024

Abstract Since the electrochemical de/intercalation behavior is first detected in 1980, layered oxides have become most promising cathode material for alkali metal‐ion batteries (Li + /Na /K ; AMIBs) owing to their facile synthesis and excellent theoretical capacities. However, inherent drawbacks of unstable structural evolution sluggish diffusion kinetics deteriorate performance, limiting further large‐scale applications. To solve these issues, novel strategy high entropy has been widely applied oxide cathodes AMIBs recent years. Through multielement synergy stabilization effects, high‐entropy (HELOs) can achieve adjustable activity enhanced stability. Herein, basic concepts, design principles, methods HELO are introduced systematically. Notably, it explores detail improvements on limitations oxides, highlighting latest advances materials field AMIBs. In addition, introduces advanced characterization calculations HELOs proposes potential future research directions optimization strategies, providing inspiration researchers develop areas energy storage conversion.

Язык: Английский

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Modulating Surface Architecture and Electronic Conductivity of Li‐rich Manganese‐Based Cathode

Small, Год журнала: 2024, Номер 20(44)

Опубликована: Июль 11, 2024

Li-rich manganese-based cathode (LRMC) has attracted intense attention to developing advanced lithium-ion batteries with high energy density. However, LRMC is still plagued by poor cyclic stability, undesired rate capacity, and irreversible oxygen release. To address these issues, herein, a feasible polyvinylidene fluoride (PVDF)-assisted interface modification strategy proposed for modulating the surface architecture electronic conductivity of intruding F-doped carbon coating, spinel structure, vacancy on LRMC, which can greatly enhance stability restrain release LRMC. As result, modified material delivers satisfactory performance capacity retention 90.22% after 200 cycles at 1 C, an enhanced 153.58 mAh g

Язык: Английский

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Enhancing the Stability of Li-Rich Mn-Based Oxide Cathodes through Surface High-Entropy Strategy

Energy storage materials, Год журнала: 2024, Номер 71, С. 103587 - 103587

Опубликована: Июнь 21, 2024

Язык: Английский

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Recent advances in lithium-rich manganese-based cathodes for high energy density lithium-ion batteries

Chemical Communications, Год журнала: 2023, Номер 59(59), С. 9029 - 9055

Опубликована: Янв. 1, 2023

This review provides an overview of the recent progress in lithium-rich manganese-based oxide cathodes for high energy density lithium ion batteries. The existing problems and main modification strategies are discussed.

Язык: Английский

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Interfacial engineering of the layered oxide cathode materials for sodium-ion battery

Nano Research, Год журнала: 2023, Номер 17(3), С. 1441 - 1464

Опубликована: Окт. 9, 2023

Язык: Английский

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Self-constructing a lattice-oxygen-stabilized interface in Li-rich cathodes to enable high-energy all-solid-state batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(9), С. 3052 - 3059

Опубликована: Янв. 1, 2024

A lattice-oxygen-stabilized interface is formed in situ by the interaction of indium and oxidized lattice oxygen Li 2 RuO 3 (LRO) InCl 6 (LIC), mitigating irreversible loss stabilizing surface structure.

Язык: Английский

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Characteristics, materials, and performance of Ru-containing oxide cathode materials for rechargeable batteries

eScience, Год журнала: 2024, Номер 4(5), С. 100245 - 100245

Опубликована: Фев. 2, 2024

Li-rich Mn-based cathode materials have attracted extensive attention due to their remarkable energy density contributed by additional anionic redox. However, they always suffer from some undesired problems impeding further commercialization such as irreversible oxygen loss, transition metal migration, sluggish kinetics and so on. Fortunately, the above issue can be relieved effectively when 3d Mn is replaced 4d Ru. We focus on recent progress of Ru-containing make a detailed summarization in this review. attempt combine elucidate relationship between Ru Subsequently, up-to-date Ru-based for Li+/Na+ batteries are concluded systematically. Afterward, effects discussed depth including enhancing reversibility redox structural stability, modulating ratio cationic redox, improving Li+/Na+, inhibiting migration More importantly, future designs also proposed enlighteningly. hope review could inject new perspectives comprehend layered oxides involving provide useful guidelines achieve better rechargeable batteries.

Язык: Английский

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Modulating inner Helmholtz layer by electrocatalytically sieving [Zn(H2O)6]2+ for 10000-cycle zinc-ion hybrid capacitors under extremely harsh conditions

Energy storage materials, Год журнала: 2024, Номер 70, С. 103463 - 103463

Опубликована: Май 6, 2024

Язык: Английский

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