Structural, Spectroscopic, Electronic and Optical Properties of Novel Platinum Doped (PMMA/ZrO2) and (PMMA/Al2O3) Nanocomposites for Electronics Devices

Hazim, Angham; Abduljalil, Hayder M.

doi:10.1007/s42341-020-00210-2

Cited by 60 publications

(15 citation statements)

References 96 publications

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“…As shown in Figure 1A, the peaks of both samples have sharp and well‐defined Bragg lines, belonging to the hexagonal system and have α‐NaFeO 2 layered structure with space group R‐3m. The splitting of the (006)/(102) peaks (Figure 1B) and (108)/(110) peaks (Figure 1C) is obviously confirmed, indicating excellent crystalline ordering in the layered structure 11 . The smaller full width at half maximum (FWHM) value (0.1902°) of SCNCM91 than that of PCNCM91 (0.1985°) indicates larger crystallite size and more crystalline structure.…”

Section: Resultsmentioning

confidence: 83%

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Single‐crystalline Ni‐rich LiNi ₀ _. ₉₁ Co ₀ _. ₀₆ Mn ₀ _. ₀₃ O ₂

Hwang

Lee

2021

Intl J of Energy Research

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Despite the commercialization and tremendous attention of the Ni-rich LiN-iCoMnO 2 cathode due to high energy and working voltage, there are still hurdles to be improved. The conventional polycrystalline Ni-rich LiNiCoMnO 2 suffers from decays of specific capacity and energy during long-term cycling. It originates from more deficiency of oxygen and microcracking, resulting in severe phase transition toward disordered rock salt phase. Herein, singlecrystalline Ni-rich LiNi 0.91 Co 0.06 Mn 0.03 O 2 is successfully prepared to overcome these inherent drawbacks of polycrystalline. Benefiting from reduced specific surface area and grain boundaries, single-crystalline Ni-rich LiNi 0.91 Co 0.06 Mn 0.03 O 2 outperforms polycrystalline in all electrochemical performances. The single-crystalline LiNi 0.91 Co 0.06 Mn 0.03 O 2 exhibits not only superior cycle stability of 84.7% at 40 C after 100 cycles but also high-capacity retention of 76.2% under 2 C via improving structural integrity. Therefore, this work reveals that single crystalline can be a breakthrough for stable and high electrochemical performances. K E Y W O R D S decays of specific capacity and energy, deficiency of oxygen and microcracking, Ni-rich LiNiCoMnO 2 , phase transition, single-crystalline

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Section: Resultsmentioning

confidence: 83%

“…The splitting of the (006)/(102) peaks (Figure 1B) and ( 108)/(110) peaks (Figure 1C) is obviously confirmed, indicating excellent crystalline ordering in the layered structure. 11 The smaller full width at half maximum (FWHM) value (0.1902 ) of SCNCM91 than that of PCNCM91 (0.1985 )…”

Section: Introductionmentioning

confidence: 98%

Single‐crystalline Ni‐rich LiNi ₀ _. ₉₁ Co ₀ _. ₀₆ Mn ₀ _. ₀₃ O ₂

Hwang

Lee

2021

Intl J of Energy Research

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“…The oblique line at the lowfrequency region represents the Warburg impedance (W). 1,[41][42][43] As listed in Table 3, it can be noted the pristine NCM undergoes significantly increased R ct from 28.3 to 41.2 Ω. In contrast, for M-NCM, R ct value is relatively less increased (from 22.8 to 26.2 Ω), demonstrating that the MgHPO 4 modification protects the active material from catalytic side reactions at the cathode/electrolyte interface during cycling process.…”

Section: Resultsmentioning

confidence: 93%

Reinforcing electrochemical performance of Ni‐rich NCM cathode co‐modified by mg‐doping and Li ₃ PO ₄ ‐coating

Hwang

Kang

Yoon³

et al. 2022

Intl J of Energy Research

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Summary The structural and interfacial degradation of Ni‐rich cathode materials during the cycling continuously delays its commercialization of lithium‐ion batteries (LIBs). To overcome these drawbacks, we propose a MgHPO4‐modified LiNi0.8Co0.1Mn0.1O2 (M‐NCM) cathode material. From electrochemical analysis, M‐NCM takes the combining advantages of Mg doping and Li3PO4 coating. Interestingly, M‐NCM shows a better discharge capacity of 203.5 mAh g−1, delivering outstanding initial coulombic efficiency of 86.1% compared to the pristine LiNi0.8Co0.1Mn0.1O2. Additionally, M‐NCM displays advanced cycle performance with a superior capacity retention of 81.1% after 100 cycles. Furthermore, M‐NCM effectively suppresses interfacial undesirable reactions at electrode/electrolyte interface during cycling. Consequentially, this study finds that MgHPO4 surface modification can bring enhanced electrochemical performance of Ni‐rich‐layered cathode materials for high‐energy and long‐term LIBs.

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“…72 Therefore, severe anisotropic lattice change is deemed as one of the main issues for capacity decay of the Ni-rich NCM cathodes. 73,74…”

Section: Resultsmentioning

confidence: 99%

“…72 Therefore, severe anisotropic lattice change is deemed as one of the main issues for capacity decay of the Ni-rich NCM cathodes. 73,74 In addition, the structural analysis is closely investigated by observing the cross-sections of the cycled particles of both samples with a high-resolution transmission electron microscope (HRTEM, Fig. 8(a)-(h)), and the corresponding fast Fourier transformed (FFT) and selected area electron diffraction (SEAD) patterns are also recorded.…”

Section: àmentioning

confidence: 99%

Highly stable and high-performance MgHPO₄ surface-modified Ni-rich cathode materials for advanced lithium ion batteries

2022

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Structural, Spectroscopic, Electronic and Optical Properties of Novel Platinum Doped (PMMA/ZrO2) and (PMMA/Al2O3) Nanocomposites for Electronics Devices

Cited by 60 publications

References 96 publications

Single‐crystalline Ni‐rich LiNi ₀ _. ₉₁ Co ₀ _. ₀₆ Mn ₀ _. ₀₃ O ₂

Single‐crystalline Ni‐rich LiNi ₀ _. ₉₁ Co ₀ _. ₀₆ Mn ₀ _. ₀₃ O ₂

Reinforcing electrochemical performance of Ni‐rich NCM cathode co‐modified by mg‐doping and Li ₃ PO ₄ ‐coating

Highly stable and high-performance MgHPO₄ surface-modified Ni-rich cathode materials for advanced lithium ion batteries

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Structural, Spectroscopic, Electronic and Optical Properties of Novel Platinum Doped (PMMA/ZrO2) and (PMMA/Al2O3) Nanocomposites for Electronics Devices

Cited by 60 publications

References 96 publications

Single‐crystalline Ni‐rich LiNi 0 . 91 Co 0 . 06 Mn 0 . 03 O 2

Single‐crystalline Ni‐rich LiNi 0 . 91 Co 0 . 06 Mn 0 . 03 O 2

Reinforcing electrochemical performance of Ni‐rich NCM cathode co‐modified by mg‐doping and Li 3 PO 4 ‐coating

Highly stable and high-performance MgHPO4 surface-modified Ni-rich cathode materials for advanced lithium ion batteries

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Single‐crystalline Ni‐rich LiNi ₀ _. ₉₁ Co ₀ _. ₀₆ Mn ₀ _. ₀₃ O ₂

Single‐crystalline Ni‐rich LiNi ₀ _. ₉₁ Co ₀ _. ₀₆ Mn ₀ _. ₀₃ O ₂

Reinforcing electrochemical performance of Ni‐rich NCM cathode co‐modified by mg‐doping and Li ₃ PO ₄ ‐coating

Highly stable and high-performance MgHPO₄ surface-modified Ni-rich cathode materials for advanced lithium ion batteries