Enhanced Na-storage properties of O3-type NaNi0.5Mn0.5O2 cathodes by doping and coating dual-modification strategy

Yu, Caiyan; Yang, Linying; Sun, Shuwei; Chen, Di; Yan-feng, Yin; Yang, Hui; Bai, Ying

doi:10.1016/j.ceramint.2022.08.232

Cited by 15 publications

(12 citation statements)

References 27 publications

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“…31,33,34 Additionally, lattice fringes corresponding to the (104) plane, consistent with the XRD results, are observed (Figure 2f). 35 After amorphous aluminum oxide coating, a uniform coating layer is observed on the periphery of the NNMF-0.4A material (Figure 2g). The HRTEM image at the edge shows a distinct structure.…”

Section: Resultsmentioning

confidence: 99%

Amorphous Aluminum Oxide-Coated NaFe_0.33Ni_0.33Mn_0.33O₂ Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries

Zhang,

Zhao,

et al. 2023

ACS Appl. Mater. Interfaces

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Layered cathode materials for sodium-ion batteries (SIBs) have gained considerable attention as promising candidates owing to their high capacity and potential for industrial scalability. Nonetheless, challenges arise from stress and structural degradation resulting from the deposition of larger ion radius species, leading to diminished cyclic stability and rate performance. In this study, we present a novel and straightforward strategy that combines the synergistic effects of an amorphous aluminum oxide coating and aluminum ion doping. This approach effectively addresses the issues of grain cracking and expands the interlayer spacing of alkali metal ions in SIB materials, thereby enhancing their overall performance. Consequently, it optimizes the diffusion of charge carriers and facilitates interfacial charge transfer, leading to remarkable improvements in the performance of the NaNi 0.33 Mn 0.33 Fe 0.33 O 2 material with 0.4 wt % amorphous aluminum oxide coating (NNMF-0.4A), which exhibits reversible

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Section: Resultsmentioning

confidence: 99%

Amorphous Aluminum Oxide-Coated NaFe_0.33Ni_0.33Mn_0.33O₂ Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries

Zhang,

Zhao,

et al. 2023

ACS Appl. Mater. Interfaces

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“…It should be noted that due to the structural similarity between the O-and P-type phases, some studies mistakenly attribute the O-phase structure in the highvoltage region to the P-type phase, thereby misidentifying the solid-solution reaction zone. [168,169] For O3 and P3 phases, the intensity ratio between ( 104) and ( 105) diffraction peaks can be used as an indicator of the crystal structure, where the O3 and P3 phases exhibit higher relative intensities of ( 104) and ( 105) peaks, respectively. [170]…”

Section: Nani 05 Mn 05 Omentioning

confidence: 99%

“…In addition, the combined coating-doping strategy not only extends the service life by improving structural integrity and reducing internal reaction resistance, but also effectively improves air stability and anion redox reversibility. [169,248] However, it should be noted that this dual modification strategy requires further optimization as it is still difficult to accurately control the amount and location of the dopant.…”

Section: Oxide Coatingsmentioning

confidence: 99%

“…In addition to improving chemical stability, the introduced protective coating effectively improves the environmental stability of layered oxides by physically isolating the sensitive cathode from moist air. [243] The air stability of NaNi 0.5 Mn 0.5 O 2 was enhanced using surface coatings of CuO [169] or Al 2 O 3. [243] The chemical ag-ing results indicated that this surface-modification strategy can effectively alleviate the structural degradation (reduce the content of hydrated compounds), inhibit the formation of impurities (NaHCO 3 and Na 2 CO 3 by-products), and suppress the dissolution of TM ions.…”

Section: Oxide Coatingsmentioning

confidence: 99%

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Practical Cathodes for Sodium‐Ion Batteries: Who Will Take The Crown?

Liang,

Hwang,

Sun

2023

Advanced Energy Materials

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In recent decades, sodium‐ion batteries (SIBs) have received increasing attention because they offer cost and safety advantages and avoid the challenges related to limited lithium/cobalt/nickel resources and environmental pollution. Because the sodium storage performance and production cost of SIBs are dominated by the cathode performance, developing cathode materials with large‐scale production capacity is the key to achieving commercial applications of SIBs. Therefore, developing host materials with high energy density, long cycling life, low production cost, and high chemical/environmental stability is crucial for implementing advanced SIBs. Among the developed cathode materials for SIBs, O3‐type sodiated transition‐metal oxides have attracted extensive attention owing to their simple synthesis methods, high theoretical specific capacity, and sufficient Na content. However, the relatively large Na‐ion radius leads to sluggish diffusion kinetics and inevitable complex phase transitions during the deintercalation/intercalation process, resulting in poor rate capability and cycling stability. Therefore, this review comprehensively summarizes the research progress and modification strategies for O3‐type cathodes, including the component design, surface modification, and optimization of synthesis methods. This work aims to guide the development of commercial layered oxides and provide technical support for the next generation of energy‐storage systems.

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“…In order to address the above-mentioned issues, some strategies have been adopted, such as metal doping, diphase structure, and surface coating [25][26][27][28][29][30]. Among these strategies, metal doping, including Ti, Al, Mg, Zr, Cu, Co, etc, is one type of simple and effective method at enhancing the reversibility of phase transition of O3type layered oxides.…”

Section: Introductionmentioning

confidence: 99%

Ti/Co co-doped O3-Na(Ni_0.3Fe_0.2Mn_0.5)_0.85Ti_0.1Co_0.05O₂ with high rate and durable cathode material for sodium-ion batteries

Wang,

Li,

et al. 2023

Mater. Res. Express

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O3-type layered oxides are widely investigated as cathodes for Na-ion batteries (SIBs) due to their high theoretical capacities and splendid initial Coulombic efficiency. However, they suffer from fast capacity fading owing to the complicated phase transformations, especially in high cut-off voltage (>4 V). Herein, Ti and Co elements were simultaneously introduced to O3-Na(Ni0.3Fe0.2Mn0.5)0.85Ti0.1Co0.05O2 (NFMTC) cathode material, and the effects of Ti/Co co-doping on phase structure and electrochemical properties were analyzed in detail. The results reveal that Ti/Co co-doping can enhance the {010} plane, interlayer space and Na-ion diffusion kinetics, resulting in the improved electrochemical performance. Therefore, the NFMTC cathode delivers a high reversible capacity of 174.7 mAh g−1 at 0.1 C in the voltage range of 2.0–4.3 V and a good rate capability (53% of the initial capacity at 5 C) as well as an excellent capacity retention of 78% after 300 cycles at 1 C. This work maybe provides a guidance to explore high-performance cathode materials for sodium ion batteries.

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Enhanced Na-storage properties of O3-type NaNi0.5Mn0.5O2 cathodes by doping and coating dual-modification strategy

Cited by 15 publications

References 27 publications

Amorphous Aluminum Oxide-Coated NaFe_0.33Ni_0.33Mn_0.33O₂ Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries

Amorphous Aluminum Oxide-Coated NaFe_0.33Ni_0.33Mn_0.33O₂ Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries

Practical Cathodes for Sodium‐Ion Batteries: Who Will Take The Crown?

Ti/Co co-doped O3-Na(Ni_0.3Fe_0.2Mn_0.5)_0.85Ti_0.1Co_0.05O₂ with high rate and durable cathode material for sodium-ion batteries

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Enhanced Na-storage properties of O3-type NaNi0.5Mn0.5O2 cathodes by doping and coating dual-modification strategy

Cited by 15 publications

References 27 publications

Amorphous Aluminum Oxide-Coated NaFe0.33Ni0.33Mn0.33O2 Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries

Amorphous Aluminum Oxide-Coated NaFe0.33Ni0.33Mn0.33O2 Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries

Practical Cathodes for Sodium‐Ion Batteries: Who Will Take The Crown?

Ti/Co co-doped O3-Na(Ni0.3Fe0.2Mn0.5)0.85Ti0.1Co0.05O2 with high rate and durable cathode material for sodium-ion batteries

Contact Info

Product

Resources

About

Amorphous Aluminum Oxide-Coated NaFe_0.33Ni_0.33Mn_0.33O₂ Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries

Amorphous Aluminum Oxide-Coated NaFe_0.33Ni_0.33Mn_0.33O₂ Cathode Materials: Enhancing Interface Charge Transfer for High-Performance Sodium-Ion Batteries

Ti/Co co-doped O3-Na(Ni_0.3Fe_0.2Mn_0.5)_0.85Ti_0.1Co_0.05O₂ with high rate and durable cathode material for sodium-ion batteries