Ultrasonic-assisted co-precipitation to synthesize lithium-rich cathode Li1.3Ni0.21Mn0.64O2+ materials for lithium-ion batteries

Li, Li; Song, Shaotang; Zhang, Xiaoxiao; Chen, Renjie; Lu, Jun; Wu, Feng; Amine, Khalil

doi:10.1016/j.jpowsour.2014.08.063

Cited by 24 publications

(15 citation statements)

References 28 publications

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“…The high-nickel NCM ternary cathode material has a-NaFeO 2 structure; the space group is hexagonal R-3m; Li + is embedded in the layered structure of transition metal and oxygen atoms and inserted and extracted in the 2D gap (Li et al, 2014;. In high-nickel type LNCM cathode materials, Ni 2+ and Li + are prone to cation mixing (Yang et al, 2019b).…”

Section: Surface Structure and Evolution Of High-nickel Cathode Matermentioning

confidence: 99%

Research Progress on the Surface of High-Nickel Nickel–Cobalt–Manganese Ternary Cathode Materials: A Mini Review

Song

Xiao

et al. 2020

Front. Chem.

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To address increasingly prominent energy problems, lithium-ion batteries have been widely developed. The high-nickel type nickel-cobalt-manganese (NCM) ternary cathode material has attracted attention because of its high energy density, but it has problems such as cation mixing. To address these issues, it is necessary to start from the surface and interface of the cathode material, explore the mechanism underlying the material's structural change and the occurrence of side reactions, and propose corresponding optimization schemes. This article reviews the defects caused by cation mixing and energy bands in high-nickel NCM ternary cathode materials. This review discusses the reasons why the core-shell structure has become an optimized high-nickel ternary cathode material in recent years and the research progress of core-shell materials. The synthesis method of high-nickel NCM ternary cathode material is summarized. A good theoretical basis for future experimental exploration is provided.

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Section: Surface Structure and Evolution Of High-nickel Cathode Matermentioning

confidence: 99%

Research Progress on the Surface of High-Nickel Nickel–Cobalt–Manganese Ternary Cathode Materials: A Mini Review

Song

Xiao

et al. 2020

Front. Chem.

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“…An effective surface area of active materials is another key point affecting the performance of the batteries in terms of capacity and rate capability. An increase in the effective surface area provides more active sites for surface reactions, a lower diffusion distance to Li + ions and higher electrodeelectrolyte contact areas [11]. Moreover, during electrode preparation, having a homogeneous and dense film on the current collector greatly depends on the size and shape of the active material particles.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of $$\hbox {Li}_{{x}}(\hbox {Ni}_{0.80}\hbox {Co}_{0.15}\hbox {Al}_{0.05})\hbox {O}_{{2}}$$ cathodes with deficient and excess lithium using an ultrasonic sound-assisted co-precipitation method for Li-ion batteries

2019

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The possible improvements in structural stability and capacity of nickel-cobalt-aluminium cathode material were investigated by synthesizing this compound with various lithium amounts (Li x (Ni 0.80 Co 0.15 Al 0.05)O 2 where x = 0.90, 0.95, 1.00 and 1.05). An ultrasound-assisted co-precipitation method was performed to produce spherical, nanosized powders with a narrow size distribution which satisfies a homogeneous and dense film during calendaring. Layered Li x (Ni 0.80 Co 0.15 Al 0.05)O 2 (x = 0.90, 0.95, 1.00 and 1.05) cathode active materials were successfully synthesized with this method and chemical compositions of the powders synthesized were determined by inductively coupled plasmamass spectroscopy. Structural characterization was carried out via X-ray diffraction and scanning electron microscopy techniques. The electrochemical properties of the cathode materials were investigated by electrochemical impedance spectroscopy, galvanostatic charge/discharge and cyclic voltammetry methods. Among the cathode compositions in the current study, Li 1.05 (Ni 0.80 Co 0.15 Al 0.05)O 2 exhibited the highest capacity, 138 mAh g −1 with 95% capacity retention upon 22 cycles.

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“…Ultrasonic cavitation during food processing instantaneously produce high temperatures and causes pressure changes in liquid solutions, which can kill some bacteria, inactivate viruses, and even disrupt small microbe cell walls, thereby extending the freshness and maintaining the original flavor of food [1,2]. Ultrasound-assisted extraction has many characteristics, such as shortened extraction time, no heating, which can avoid the thermal damage of effective components in the crude extract, it is suitable for extracting thermosensitive materials [3,4].…”

Section: Introductionmentioning

confidence: 99%

Effects of Power Ultrasound on Stability of Cyanidin-3-glucoside Obtained from Blueberry

Yao

Cao

et al. 2016

Molecules

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Power ultrasound (US) could potentially be used in the food industry in the future. However, the extent of anthocyanin degradation by US requires investigation. Cyanidin-3-glucoside (Cy-3-glu) obtained from blueberry extracts was used as research material to investigate the effect of power ultrasound on food processing of anthocyanin-rich raw materials. The effects of ultrasonic waves on the stability of Cy-3-glu and on the corresponding changes in UV-Vis spectrum and antioxidant activity were investigated, and the mechanisms of anthocyanin degradation induced by ultrasonic waves were discussed. To explore Cy-3-glu degradation in different environments, we kept the Cy-3-glu solution treated with ultrasonic waves in four concentrations (0%, 10%, 20%, and 50%) of ethanol aqueous solutions to simulate water, beer, wine, and liquor storage environment according to the chemical kinetics method. Results show that the basic spectral characteristics of Cy-3-glu did not significantly change after power ultrasound cell crusher application at 30 • C. However, with anthocyanin degradation, the intensity of the peak for Cy-3-glu at 504 nm significantly decreased (p < 0.05). The degradation kinetics of Cy-3-glu by ultrasonic waves (200-500 W frequency) fitted well to first-order reaction kinetics, and the degradation rate constant of Cy-3-glu under power ultrasound was considerably larger than that under thermal degradation (p < 0.05). The sensitivity of the anthocyanins of blueberry to temperature increased with increasing ethanol concentration, and the longest half-life was observed in 20% ethanol aqueous solution.

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Ultrasonic-assisted co-precipitation to synthesize lithium-rich cathode Li1.3Ni0.21Mn0.64O2+ materials for lithium-ion batteries

Cited by 24 publications

References 28 publications

Research Progress on the Surface of High-Nickel Nickel–Cobalt–Manganese Ternary Cathode Materials: A Mini Review

Research Progress on the Surface of High-Nickel Nickel–Cobalt–Manganese Ternary Cathode Materials: A Mini Review

Synthesis of $$\hbox {Li}_{{x}}(\hbox {Ni}_{0.80}\hbox {Co}_{0.15}\hbox {Al}_{0.05})\hbox {O}_{{2}}$$ cathodes with deficient and excess lithium using an ultrasonic sound-assisted co-precipitation method for Li-ion batteries

Effects of Power Ultrasound on Stability of Cyanidin-3-glucoside Obtained from Blueberry

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