High performance well-developed single crystal LiNi0.91Co0.06Mn0.03O2 cathode via LiCl-NaCl flux method

Lee, Seung Hwan; Sim, Seong-Ju; Jin, Bong‐Soo; Kim, Hyunsoo

doi:10.1016/j.matlet.2020.127615

Cited by 49 publications

(34 citation statements)

References 17 publications

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“…Another study, the synthesis of single-crystal Ni-rich with NaCl flux was carried out. NaCl functions as a growth flux for primary particles, reducing the temperature and sintering time (Bi et al, 2020;Lee et al, 2020). Jie Zhu et al used spray pyrolysis method to produce a single crystal NMC 811.…”

Section: Single Crystalmentioning

confidence: 99%

High Performance Nickel Based Electrodes in State-of-the-Art Lithium-Ion Batteries: Morphological Perspectives

Purwanto

Nisa

Lestari

et al. 2022

KONA

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Li-ion batteries with "nickel" as the main material or the highest ratio material on the cathode or anode electrode have attracted considerable attention. Nickel has high strength and corrosion resistance. Nickel has also been utilized successfully as the cathode and anode materials. The specific capacity and energy and power density of the material increased with increasing nickel content. However, several problems have limited the use of nickel-based Li-ion batteries. Problems such as cation mixing, the properties of nickel, and highly Ni-rich compounds leading to side reactions, influence the electrochemical performance of Li-ion batteries. The morphology is another factor affecting the electrochemical performance. Further studies will be needed to synthesize materials with the desired morphology and determine how the morphology affects the electrochemical performance. In a morphological perspective, extensive morphological adjustments are a pathway to a long and stable life cycle. In this light, nickelbased electrodes are manufactured continuously and will always be considered for next-generation secondary energy storage. The morphology of nickel-based active materials is one of the main factors determining the highperformance of Li-ion batteries.

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Section: Single Crystalmentioning

confidence: 99%

High Performance Nickel Based Electrodes in State-of-the-Art Lithium-Ion Batteries: Morphological Perspectives

Purwanto

Nisa

Lestari

et al. 2022

KONA

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“…Single-crystal cathodes provide a new research direction for LIBs due to their high compressive strength and good machinability. 31 The single-crystal bulk phase improves the discharging voltage, 32 vibrational density, 33 and cycling performance 34,35 of LIBs. However, the larger particles (3-6 mm) of the single-crystal materials inhibit the diffusion of Li + , resulting in poor initial CE, reversible capacity, and rate performance.…”

Section: Introductionmentioning

confidence: 99%

Intelligent phase-transition MnO₂ single-crystal shell enabling a high-capacity Li-rich layered cathode in Li-ion batteries

et al. 2021

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“…Despite various attempts such as coating, doping, core-shell, and concentration-gradient structures, relatively fast capacity fading via phase transition is inevitable for polycrystalline Ni-rich NCM cathode, leading to thermal run-away, fire, and even explosion. 3,4 These fatal shortcomings have prevented the more widespread applications of polycrystalline Ni-rich NCM. Therefore, interest in single-crystalline has been explosively increasing, achieving safety and high electrochemical performances as a game changer.…”

Section: Introductionmentioning

confidence: 99%

“…Until now, to achieve higher energy density of NCM cathodes, the Ni concentration has steadily increased. Despite various attempts such as coating, doping, core–shell, and concentration‐gradient structures, relatively fast capacity fading via phase transition is inevitable for polycrystalline Ni‐rich NCM cathode, leading to thermal run‐away, fire, and even explosion 3,4 …”

Section: Introductionmentioning

confidence: 99%

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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High performance well-developed single crystal LiNi0.91Co0.06Mn0.03O2 cathode via LiCl-NaCl flux method

Cited by 49 publications

References 17 publications

High Performance Nickel Based Electrodes in State-of-the-Art Lithium-Ion Batteries: Morphological Perspectives

High Performance Nickel Based Electrodes in State-of-the-Art Lithium-Ion Batteries: Morphological Perspectives

Intelligent phase-transition MnO₂ single-crystal shell enabling a high-capacity Li-rich layered cathode in Li-ion batteries

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

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High performance well-developed single crystal LiNi0.91Co0.06Mn0.03O2 cathode via LiCl-NaCl flux method

Cited by 49 publications

References 17 publications

High Performance Nickel Based Electrodes in State-of-the-Art Lithium-Ion Batteries: Morphological Perspectives

High Performance Nickel Based Electrodes in State-of-the-Art Lithium-Ion Batteries: Morphological Perspectives

Intelligent phase-transition MnO2 single-crystal shell enabling a high-capacity Li-rich layered cathode in Li-ion batteries

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

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Intelligent phase-transition MnO₂ single-crystal shell enabling a high-capacity Li-rich layered cathode in Li-ion batteries

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