Insights into the enhanced structure stability and electrochemical performance of Ti4+/F− co-doped P2-Na0.67Ni0.33Mn0.67O2 cathodes for sodium ion batteries at high voltage

Zhou, Pengfei; Che, Zhennan; Quan, Zuhao; Duan, Ju; Wu, Xiaozhong; Weng, Junying; Zhao, Jinping

doi:10.1016/j.jechem.2021.10.032

Cited by 37 publications

(17 citation statements)

References 46 publications

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“…4e). [23][24][25][46][47][48][49][50][51][52][53][54] As indicated, the NNZMTOF cathode delivered better cycling performances in half-cells compared with that of other sodium-based layered oxide cathodes reported previously (Table S2 †).…”

Section: Resultssupporting

confidence: 55%

“…The increased cell volume was attributed to the ionic radius of Zn 2+ (0.74 Å) and Ti 4+ (0.69 Å), which are greater than that of Ni 2+ (0.63 Å) and Mn 4+ (0.53 Å). 24,25,29,30 The lattice parameter c increased, which could be attributed to the increase in Na + content between oxygen layers. This phenomenon would result in a decrease in repulsion between the oxygen layers, which may help to enhance its electrochemistry performance.…”

Section: Resultsmentioning

confidence: 99%

“…Based on a strategy of Ti 4+ /F − co-doping, the P2-Na 0.67 Ni 0.33 Mn 0.37 Ti 0.3 O 1.9 F 0.1 cathode material exhibits much-enhanced sodium storage with excellent cycle stability (77.2% capacity retention aer 300 cycles). 25 In this work, Zn/Ti/F were introduced as doping ions in P2-NNMO to further enhance sodium-storage performance. The synergetic-doping of Zn 2+ , Ti 4+ and F − increases oxygen content in the lattice of a crystal structure.…”

Section: Introductionmentioning

confidence: 99%

“…Based on a strategy of Ti 4+ /F − co-doping, the P2–Na 0.67 Ni 0.33 Mn 0.37 Ti 0.3 O 1.9 F 0.1 cathode material exhibits much-enhanced sodium storage with excellent cycle stability (77.2% capacity retention after 300 cycles). 25…”

Section: Introductionmentioning

confidence: 99%

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Zn/Ti/F synergetic-doped Na_0.67Ni_0.33Mn_0.67O₂ for sodium-ion batteries with high energy density

Fan

Yang

et al. 2023

J. Mater. Chem. A

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Section: Resultssupporting

confidence: 55%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Zn/Ti/F synergetic-doped Na_0.67Ni_0.33Mn_0.67O₂ for sodium-ion batteries with high energy density

Fan

Yang

et al. 2023

J. Mater. Chem. A

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“…In addition, the substitution of some trace elements (Sn, F, etc. ) ,, could improve capacity output by enhancing oxygen redox activity. As expected, the substitution of one or one category of elements corresponds to the improvement in one or one type of properties of cathodes, so can the cosubstitution of two or more elements simultaneously modify two or multiple properties or produce a coordinated effect?…”

mentioning

confidence: 99%

P2-Type Moisture-Stable and High-Voltage-Tolerable Cathodes for High-Energy and Long-Life Sodium-Ion Batteries

Yuan

Qian

et al. 2023

Nano Lett.

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P2-Na 0.67 Ni 0.33 Mn 0.67 O 2 represents a promising cathode for Na-ion batteries, but it suffers from severe structural degradation upon storing in a humid atmosphere and cycling at a high cutoff voltage. Here we propose an in situ construction to achieve simultaneous material synthesis and Mg/Sn cosubstitution of Na 0.67 Ni 0.33 Mn 0.67 O 2 via one-pot solid-state sintering. The materials exhibit superior structural reversibility and moisture insensitivity. In-operando XRD reveals an essential correlation between cycling stability and phase reversibility, whereas Mg substitution suppressed the P2−O2 phase transition by forming a new Z phase, and Mg/Sn cosubstitution enhanced the P2−Z transition reversibility benefiting from strong Sn−O bonds. DFT calculations disclosed high chemical tolerance to moisture, as the adsorption energy to H 2 O was lower than that of the pure Na 0.67 Ni 0.33 Mn 0.67 O 2 . A representative Na 0.67 Ni 0.23 Mg 0.1 Mn 0.65 Sn 0.02 O 2 cathode exhibits high reversible capacities of 123 mAh g −1 (10 mA g −1 ), 110 mAh g −1 (200 mA g −1 ), and 100 mAh g −1 (500 mA g −1 ) and a high capacity retention of 80% (500 mA g −1 , 500 cycles).

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Toward the High‐Voltage Stability of Layered Oxide Cathodes for Sodium‐Ion Batteries: Challenges, Progress, and Perspectives

Chen,

Deng,

Kong

et al. 2024

Advanced Materials

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Sodium‐ion batteries (SIBs) have garnered significant attention as ideal candidates for large‐scale energy storage due to their notable advantages in terms of resource availability and cost‐effectiveness. However, there remains a substantial energy density gap between SIBs and commercially available lithium‐ion batteries (LIBs), posing challenges to meeting the requirements of practical applications. The fabrication of high‐energy cathodes has emerged as an efficient approach to enhance the energy density of SIBs, which commonly requires cathodes operating in high‐voltage regions. Layered oxide cathodes (LOCs), with low cost, facile synthesis, and high theoretical specific capacity, have emerged as one of the most promising candidates for commercial applications. However, LOCs encounter significant challenges when operated in high‐voltage regions such as irreversible phase transitions, migration and dissolution of metal cations, loss of reactive oxygen, and the occurrence of serious interfacial parasitic reactions. These issues ultimately result in severe degradation in battery performance. This review aims to shed light on the key challenges and failure mechanisms encountered by LOCs when operated in high‐voltage regions. Additionally, the corresponding strategies for improving the high‐voltage stability of LOCs are comprehensively summarized. By providing fundamental insights and valuable perspectives, this review aims to contribute to the advancement of high‐energy SIBs.This article is protected by copyright. All rights reserved

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Insights into the enhanced structure stability and electrochemical performance of Ti4+/F− co-doped P2-Na0.67Ni0.33Mn0.67O2 cathodes for sodium ion batteries at high voltage

Cited by 37 publications

References 46 publications

Zn/Ti/F synergetic-doped Na_0.67Ni_0.33Mn_0.67O₂ for sodium-ion batteries with high energy density

Zn/Ti/F synergetic-doped Na_0.67Ni_0.33Mn_0.67O₂ for sodium-ion batteries with high energy density

P2-Type Moisture-Stable and High-Voltage-Tolerable Cathodes for High-Energy and Long-Life Sodium-Ion Batteries

Toward the High‐Voltage Stability of Layered Oxide Cathodes for Sodium‐Ion Batteries: Challenges, Progress, and Perspectives

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Insights into the enhanced structure stability and electrochemical performance of Ti4+/F− co-doped P2-Na0.67Ni0.33Mn0.67O2 cathodes for sodium ion batteries at high voltage

Cited by 37 publications

References 46 publications

Zn/Ti/F synergetic-doped Na0.67Ni0.33Mn0.67O2 for sodium-ion batteries with high energy density

Zn/Ti/F synergetic-doped Na0.67Ni0.33Mn0.67O2 for sodium-ion batteries with high energy density

P2-Type Moisture-Stable and High-Voltage-Tolerable Cathodes for High-Energy and Long-Life Sodium-Ion Batteries

Toward the High‐Voltage Stability of Layered Oxide Cathodes for Sodium‐Ion Batteries: Challenges, Progress, and Perspectives

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Zn/Ti/F synergetic-doped Na_0.67Ni_0.33Mn_0.67O₂ for sodium-ion batteries with high energy density

Zn/Ti/F synergetic-doped Na_0.67Ni_0.33Mn_0.67O₂ for sodium-ion batteries with high energy density