Unlocking high-rate O3 layered oxide cathode for Na-ion batteries via ion migration path modulation

Liu, Guoliang; Xu, Weile; Wu, Jerry J.; Li, Yong; Chen, Liping; Li, Shuyue; Ren, Qinghui; Wang, Juan

doi:10.1016/j.jechem.2023.04.029

Cited by 46 publications

(12 citation statements)

References 47 publications

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“…Figure 3a,b presents the galvanostatic charge−discharge (GCD) curves of NFM and NCFM at 0.2 C (1 C = 120 mA g −1 ) in the voltage range of 2−4 V. The initial reversible capacities of NFM and NCFM are 130.0 and 126.5 mAh g −1 , respectively. New plateaus appear at 2.8 V for both materials as the cycling progresses, and the subsequent two plateaus merge into a sloping one between 2.8 and 2.6 V. 25 The typical voltage plateaus ranging from 2.8 to 2.6 V for NFM and NCFM are attributed to the two-phase reaction. 26 The cyclic voltammetry (CV) curves of NFM and NCFM are compared in Figure 3c,d.…”

Section: Resultsmentioning

confidence: 90%

Improving the Crystal Stability of O3-type Metal Oxide Cathode Materials by Cu Substitution for Na-Ion Batteries

Deng,

Yang,

Liu

et al. 2024

Energy Fuels

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Nickel−iron−manganese-based (NiFeMn-based) O3-type layered oxides hold substantial promise as cathode materials for large-scale applications in sodium-ion batteries (SIBs). However, their cyclic stability still requires optimization by elemental substitution at different lattice sites. Herein, we present a high-temperature solid-state reaction synthesis of a pure O3-phase NaNi 0.3 Cu 0.1 Fe 0.2 Mn 0.4 O 2 (NCFM) exhibiting a reversible capacity of 126.5 mAh g −1 and maintaining a capacity retention of 89% after 100 cycles at 0.2 C. Upon continuous charging and discharging, the discharge plateaus initially situated at 2.6 V gradually transform into a sloped curve ranging from 2.8 to 2.6 V. The noteworthy improvement in cyclic stability observed in NCFM underscores the significant impact of Cu substitution in NiMnFe-based layered oxide materials for SIBs. Ex situ X-ray diffraction indicates that NCFM undergoes a reversible "O3−P3−O3 + P3−O3" phase transition during cycling. Our findings highlight the advantageous role of Cu substitution in NCFM, showcasing its potential as a promising cathode material for enhancing the performance of SIBs.

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Section: Resultsmentioning

confidence: 90%

Improving the Crystal Stability of O3-type Metal Oxide Cathode Materials by Cu Substitution for Na-Ion Batteries

Deng,

Yang,

Liu

et al. 2024

Energy Fuels

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“…This indicates that Y 3+ substitution can effectively improve the rate capability of NFM, which is due to the expanded d -spacing between the TM slabs. In addition, the rate capability at 5C of NFMY1 in our work and the modified NFM in published papers was compared, 4,37,49,57,59–67 and the results are shown in Fig. 5.…”

Section: Resultsmentioning

confidence: 94%

“…However, due to the uneven distribution of Li and Co elements and the shortage of resources, the price of lithium-ion batteries has risen rapidly. 1–4 In this context, researchers are beginning to be attracted to sodium-ion batteries. Sodium-ion batteries have recently become a research hotspot in the field of large-scale energy storage devices and low-speed electric vehicles due to the abundant sodium resources, low price, and their similar working principle to lithium-ion batteries.…”

Section: Introductionmentioning

confidence: 99%

A high-rate and air-stable cathode material for sodium-ion batteries: yttrium-substituted O3-type Ni/Fe/Mn-based layered oxides

Jiang,

Wang,

Xin

et al. 2024

J. Mater. Chem. A

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“…This can be mainly attributed to the reduction of TM-O bond length and contraction of the TMO 6 octahedral, which limits the slip of the transition metal layer during Na + extraction and insertion, thus enhancing structural stability and improving cycling performance. [44] Figure 5 compares the cycling performance of NFMZ2 in this work with NFM modified by various methods (such as doping, coating, substitution) reported in previous articles, [17,31,36,[52][53][54][55][56][57][58][59][60][61] next to each data point is the corresponding current density at test state. Some detailed data from the reported literature are listed in Supporting Information S1: Table S5.…”

Section: Structural Characterizationmentioning

confidence: 83%

Toward high stability of O3‐type NaNi_1/3Fe_1/3Mn_1/3O₂ cathode material with zirconium substitution for advanced sodium‐ion batteries

Jiang,

Wang,

Xin

et al. 2024

Carbon Neutralization

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We successfully synthesized a series of O3‐type NaNi1/3Fe1/3Mn1/3−xZrxO2 (x = 0, 0.01, 0.02, 0.04) cathode materials by the solid‐state reaction method. Energy dispersion spectroscopy, X‐ray diffraction (XRD), and X‐ray photoelectron spectroscopy results confirmed the successful incorporation of Zr elements into the lattice to substitute Mn. Due to the introduction of Zr4+, the crystal structure modulation of O3‐NaNi1/3Fe1/3Mn1/3O2 has been realized. By increasing the Zr4+ content, the width of the sodium diffusion layer expands, thereby facilitating the diffusion of sodium ions. Consequently, the material exhibits a remarkable enhancement in high‐rate capability. At the same time, increasing the Zr4+ content results in a notable decrease in both the average bond length of TM−O and the thickness of the TMO6 octahedron in the transition metal layer, resulting in a significant improvement in the cycling performance and structural stability of the cathode material. Additionally, the in‐situ XRD results demonstrate that the optimized cathode composition of O3‐NaNi1/3Fe1/3Mn1/3–0.02Zr0.02O2 (NFMZ2) undergoes a reversible phase transition of O3 → O3 + P3 → P3 → O3 + P3 → O3 during the charge–discharge process.

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Unlocking high-rate O3 layered oxide cathode for Na-ion batteries via ion migration path modulation

Cited by 46 publications

References 47 publications

Improving the Crystal Stability of O3-type Metal Oxide Cathode Materials by Cu Substitution for Na-Ion Batteries

Improving the Crystal Stability of O3-type Metal Oxide Cathode Materials by Cu Substitution for Na-Ion Batteries

A high-rate and air-stable cathode material for sodium-ion batteries: yttrium-substituted O3-type Ni/Fe/Mn-based layered oxides

Toward high stability of O3‐type NaNi_1/3Fe_1/3Mn_1/3O₂ cathode material with zirconium substitution for advanced sodium‐ion batteries

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Unlocking high-rate O3 layered oxide cathode for Na-ion batteries via ion migration path modulation

Cited by 46 publications

References 47 publications

Improving the Crystal Stability of O3-type Metal Oxide Cathode Materials by Cu Substitution for Na-Ion Batteries

Improving the Crystal Stability of O3-type Metal Oxide Cathode Materials by Cu Substitution for Na-Ion Batteries

A high-rate and air-stable cathode material for sodium-ion batteries: yttrium-substituted O3-type Ni/Fe/Mn-based layered oxides

Toward high stability of O3‐type NaNi1/3Fe1/3Mn1/3O2 cathode material with zirconium substitution for advanced sodium‐ion batteries

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Toward high stability of O3‐type NaNi_1/3Fe_1/3Mn_1/3O₂ cathode material with zirconium substitution for advanced sodium‐ion batteries