ZnO Nanocrystals as Anode Electrodes for Lithium-Ion Batteries

Zhang, Wenhui; Du, Luping; Chen, Zongren; Hong, Juan; Lu, Yonglai

doi:10.1155/2016/8056302

Cited by 18 publications

(13 citation statements)

References 39 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Accordingly, capacities as low as 22 mAh/g were retained . On the other hand, a study based on the pure ZnO anodes was strongly correlated with this study …”

Section: Resultssupporting

confidence: 83%

Electrochemical properties of ZnO anode materials with MicNo^® morphology

Dermenci

Yanık

Dağ

et al. 2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

ZnO‐based anodes are currently possessing drawbacks such as their low cyclic stability, high capacity fade, and relatively low electronic conductivity that prevent their widespread use in commercial batteries. A commercially available, patented MicNo morphology of ZnO is known to adopt the advantages of nanosize into bulk in the field of semiconductor and cosmetic technology. In this study, the electrochemical performance of ZnO having MicNo morphology and its potential use in Li‐ion batteries were investigated. After 100 galvanostatic cycles at constant 100 mA/g current density, the retained capacity of MicNo is higher than nanosized ZnO‐the starting powder for MicNo ZnO. On the contrary, at higher current densities of 500 or 1000 mA/g, the nano‐ZnO showed better cyclability and lower capacity fade compared to MicNo ZnO. In cyclic voltammetry results, reduction in ZnO, LiZn, and Li2Zn3 formation was dominant during formation cycle of MicNo ZnO along with excellent reversibility. After lithiation, phase change from crystalline ZnO into metallic Zn and amorphous ZnO was observed from transmission electron microscopy analysis. Improved Li+ diffusion in SEI and pore channels, better charge‐transfer characteristics, poor electronic contact, and high EDL capacitance are other features of MicNo ZnO according to electrochemical impedance spectroscopy.

show abstract

“…Accordingly, capacities as low as 22 mAh/g were retained . On the other hand, a study based on the pure ZnO anodes was strongly correlated with this study …”

Section: Resultssupporting

confidence: 83%

Electrochemical properties of ZnO anode materials with MicNo^® morphology

Dermenci

Yanık

Dağ

et al. 2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…The gain component of ZnO Bode plot showed a resistance of 12.1 Ohms while 7.8 Ohms was recorded for ZnO:H. Lower resistance values have been reported for nano ZnO compared to commercial ZnO. This implied that the lower resistance obtained here could be a combination of the effects of size and the enhanced conductivity due to added electrons from the H-atoms [13]. Similarly, CuO showed a resistance of 16 ohms and a much more reduced resistance of 10.8 Ohms for CuO:H ( Fig.…”

Section: Resultsmentioning

confidence: 52%

“…It is a semiconductor with interesting characteristic properties similar to ZnO as both have been used as anode electrode material for lithium ion batteries (LIBs) and other applications. On the other hand, the hybrid CuO-ZnO pn junction has been used as photocatalyst for the photochemical splitting of water molecules to generate hydrogen solar fuel [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Impedance of Hydrogenated Phases of ZnO and CuO Nanoparticles for Electrode Applications

Menegbo

Konne

Boisa

2020

AJOPACS

View full text Add to dashboard Cite

The Electrochemical Impedance Spectroscopy (EIS) measurements of Sol-gel synthesized ZnO, CuO and their respective hydrogenated phases (ZnO:H and CuO:H) for a proton-type battery model has been reported for the first time. The XRD patterns confirmed that CuO and ZnO were phase pure with minor impurities. However, that of CuO:H showed mixed phases of CuO and Cu2O with the later appearing prominent. The estimated particle sizes of ZnO, ZnO:H, CuO and CuO:H obtained using Scherrers’ equation were 17.83, 17.75, 21.63 and 15.42 nm respectively, showing remarkable particle size reductions upon hydrogenation as oxygen vacancies were substituted with smaller hydrogen ions. Nyquist plots from the EIS experimental data recorded over a frequency range of 100 kHz – 5 mHz showed expected flat semicircles at the high frequency region and straight lines at the low frequency regions while resistance estimations from the intercepts of the Bode plots were 12.10, 7.80, 16.00 and 10.80 Ω for ZnO, ZnO:H, CuO and CuO:H respectively. It also indicated high gain margins suggesting impressive electrochemical properties for battery applications.

show abstract

“…Xiao et al reported the nanostructured ZnO initial lithiation capacity of 2958.2 mAh/g (vs. Li/Li + ), however the de-lithiation capacity was only 906.7 mA (vs. Li/Li + ) which showed 30.7% coulombic efficiency [6]. Another study by Zhang also confirmed an initial coulombic efficiency of 38% (489 mAh/g/1273 mAh/g) [22]. In our study, the initial coulombic efficiency during formation of the various ZnO samples and their specific energy can be seen in Table 4.…”

Section: Electrochemical Performance Of Zno Samplesmentioning

confidence: 95%

Synthesis and Characterization of ZnO from Thermal Decomposition of Precipitated Zinc Oxalate Dihydrate as an Anode Material of Li-Ion Batteries

et al. 2021

View full text Add to dashboard Cite

Zinc oxide (ZnO) is one of the most promising materials applied in Li-ion batteries. In this research, ZnO was synthesized by the thermal decomposition of zinc oxalate dihydrate. This precursor was obtained from the precipitation process of zinc sulfate with oxalic acid. In-depth studies were carried out on the effect of various heating temperatures of zinc oxalate dihydrate precursors on ZnO synthesis. The as-prepared materials were characterized by XRD, SEM, and FTIR. Based on the XRD analysis, the presence of the ZnO-wurtzite phase can be confirmed in samples heated at temperatures above 400 °C. Meanwhile, SEM-EDX results showed that the ZnO particles have a micron size. Cells with ZnO samples as anodes have low columbic efficiency. In contrast, cells with ZnO/Graphite composite anodes have a relatively large capacity compared to pure graphite anodes. Overall, based on the consideration of the characterization results and electrochemical performance, the optimal sintering temperature to obtain ZnO is 600 °C with a cell discharge capacity of ZnO anode and in the form of graphite composites is 356 mAh/g and 450 mAh/g, respectively. This suggests that ZnO can be used as an anode material and an additive component to improve commercial graphite anodes’ electrochemical performance.

show abstract

ZnO Nanocrystals as Anode Electrodes for Lithium-Ion Batteries

Cited by 18 publications

References 39 publications

Electrochemical properties of ZnO anode materials with MicNo^® morphology

Electrochemical properties of ZnO anode materials with MicNo^® morphology

Electrochemical Impedance of Hydrogenated Phases of ZnO and CuO Nanoparticles for Electrode Applications

Synthesis and Characterization of ZnO from Thermal Decomposition of Precipitated Zinc Oxalate Dihydrate as an Anode Material of Li-Ion Batteries

Contact Info

Product

Resources

About

ZnO Nanocrystals as Anode Electrodes for Lithium-Ion Batteries

Cited by 18 publications

References 39 publications

Electrochemical properties of ZnO anode materials with MicNo® morphology

Electrochemical properties of ZnO anode materials with MicNo® morphology

Electrochemical Impedance of Hydrogenated Phases of ZnO and CuO Nanoparticles for Electrode Applications

Synthesis and Characterization of ZnO from Thermal Decomposition of Precipitated Zinc Oxalate Dihydrate as an Anode Material of Li-Ion Batteries

Contact Info

Product

Resources

About

Electrochemical properties of ZnO anode materials with MicNo^® morphology

Electrochemical properties of ZnO anode materials with MicNo^® morphology