Routes to high-performance layered oxide cathodes for sodium-ion batteries

Chemical Society Reviews, Год журнала: 2024, Номер 53(8), С. 4230 - 4301

Опубликована: Янв. 1, 2024

Various optimization strategies are reviewed and summarized to formulate design principles for layered oxide cathodes sodium-ion batteries.

Язык: Английский

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Research development on electrolytes for magnesium-ion batteries

Science Bulletin, Год журнала: 2023, Номер 68(16), С. 1819 - 1842

Опубликована: Июль 20, 2023

Язык: Английский

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Improvement of cycle life for layered oxide cathodes in sodium-ion batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(5), С. 1756 - 1780

Опубликована: Янв. 1, 2024

In this review, research progress on layered oxide cathodes for SIBs in recent years is summarized, with emphasis the problems of poor cycle life caused by irreversible phase transition, Jahn–Teller effect and interface deterioration, several strategies are proposed to alleviate these issues.

Язык: Английский

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Rational Regulation of High-Voltage Stability in Potassium Layered Oxide Cathodes

ACS Nano, Год журнала: 2024, Номер 18(20), С. 13415 - 13427

Опубликована: Май 10, 2024

Layered oxide cathode materials may undergo irreversible oxygen loss and severe phase transitions during high voltage cycling be susceptible to transition metal dissolution, adversely affecting their electrochemical performance. Here, address these challenges, we propose synergistic doping of nonmetallic elements in situ diffusion as potential solution strategies. Among them, the distribution element fluorine within material can regulated by boron, thereby suppressing manganese dissolution through surface enrichment fluorine. Furthermore, from into bulk after charging reduces energy barrier potassium ion while effectively inhibiting under voltage. The modified K0.5Mn0.83Mg0.1Ti0.05B0.02F0.1O1.9 layered exhibits a capacity 147 mAh g–1 at 50 mA long cycle life 2200 cycles 500 g–1. This work demonstrates efficacy provides valuable insights for optimizing rechargeable battery materials.

Язык: Английский

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Aluminum ion chemistry of Na4Fe3(PO4)2(P2O7) for all-climate full Na-ion battery

Science Bulletin, Год журнала: 2024, Номер 69(6), С. 772 - 783

Опубликована: Янв. 23, 2024

Язык: Английский

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Manipulating Local Chemistry and Coherent Structures for High-Rate and Long-Life Sodium-Ion Battery Cathodes

ACS Nano, Год журнала: 2024, Номер 18(20), С. 13150 - 13163

Опубликована: Май 10, 2024

Layered sodium transition-metal (TM) oxides generally suffer from severe capacity decay and poor rate performance during cycling, especially at a high state of charge (SoC). Herein, an insight into failure mechanisms within high-voltage layered cathodes is unveiled, while two-in-one tactic localization coherent structures devised to improve structural integrity Na+ transport kinetics, elucidated by density functional theory calculations. Elevated Jahn–Teller [Mn3+O6] concentration on the particle surface sodiation, coupled with intense interlayer repulsion adverse oxygen instability, leads irreversible damage near-surface structure, as demonstrated X-ray absorption spectroscopy in situ characterization techniques. It further validated that skeleton substantially strengthened through electronic structure modulation surrounding oxygen. Furthermore, optimized diffusion effectively attainable via regulating intergrown structures, successfully achieved Zn2+ inducer. Greatly, good redox reversibility initial Coulombic efficiency 92.6%, impressive capability (86.5 mAh g–1 70.4% retention 10C), enhanced cycling stability (71.6% after 300 cycles 5C) are exhibited P2/O3 biphasic cathode. believed profound comprehension will herald fresh perspectives develop cathode materials for sodium-ion batteries.

Язык: Английский

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Designing ultrastable P2/O3-type layered oxides for sodium ion batteries by regulating Na distribution and oxygen redox chemistry

Journal of Energy Chemistry, Год журнала: 2024, Номер 94, С. 466 - 476

Опубликована: Март 19, 2024

Язык: Английский

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Phase engineering of Ni-Mn binary layered oxide cathodes for sodium-ion batteries

Journal of Energy Chemistry, Год журнала: 2024, Номер 91, С. 501 - 511

Опубликована: Янв. 23, 2024

Язык: Английский

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Constructing layered/tunnel interlocking oxide cathodes for sodium-ion batteries based on breaking Mn3+/Mn4+ equilibrium in Na0.44MnO2 via trace Mo doping

Composites Part B Engineering, Год журнала: 2024, Номер 284, С. 111664 - 111664

Опубликована: Июнь 28, 2024

Язык: Английский

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Multiphase Riveting Structure for High Power and Long Lifespan Potassium‐Ion Batteries

Advanced Functional Materials, Год журнала: 2024, Номер 34(26)

Опубликована: Фев. 26, 2024

Abstract The development of potassium‐ion batteries (KIBs) relies on the exploration stable layer‐structured oxide cathode materials and a comprehensive understanding ion storage diffusion behaviors. A multiphase riveting‐structured O3/P2/P3‐Na 0.9 [Ni 0.3 Mn 0.55 Cu 0.1 Ti 0.05 ]O 2 (Tri‐NMCT) is employed as material for KIBs. It demonstrates an initial discharge specific capacity 108 mA g −1 at current density 15 in voltage range 1.5–4 V. Excellent cyclic stability exhibited well with high 83% retention after 600 cycles higher 300 . Based in‐situ XRD, it reveals that P2 phase offers more triangular prism site compared to O3 phase. This inhibits undesired transition from P3 during discharge, thereby ensuring long‐term performance. Furthermore, Density state (DOS) calculations migration barrier analyses indicate preferential K + ions due lower Fermi level. observation elucidates structural preservation embedding. Overall, this work sheds light Tri‐NMCT promising advanced

Язык: Английский

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