Synthesis of nanoparticles-assembled Co 3 O 4 microspheres as anodes for Li-ion batteries by spray pyrolysis of CoCl 2 solution

Li, Tao; Li, Xinhai; Wang, Zhixing; Guo, Huajun; Hu, Qiyang; Peng, Wenjie

doi:10.1016/j.electacta.2016.05.112

Cited by 37 publications

(10 citation statements)

References 48 publications

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“…[9] Compared with double layer capacitance, the charge density stored with pseudocapacitance is several times higher. Among all sources, the pseudocapacitive contribution in transition metal oxides was not only demonstrated to show differential capacity (dQ/dV) curves [10] but also proven to become increasingly important, [3][4][5][11][12][13][14][15] which resulted in reversible capacities exceeding the theoretical value for Co 3 O 4 , [16][17][18][19][20][21][22][23][24][25] Fe 2 O 3 , [26][27][28][29][30] RuO 2 [31] and so forth. There are 3 possible sources for the capacities (charge storage) of electrode materials.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Characteristics of Cobaltosic Oxide in Organic Electrolyte According to Bode Plots: Double‐Layer Capacitance and Pseudocapacitance

Wang

Peng

et al. 2019

ChemElectroChem

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Pseudocapacitive behavior is usually observed in transitionmetal oxide anodes for lithium-ion batteries, such as Co 3 O 4 . It is necessary to develop electrochemical technologies for clarifying the properties of the pseudocapacitance in the electrode reactions, as the understanding and controllable application of pseudocapacitance benefits the development of electrode materials with multi-storage mechanisms for lithium-ion batteries. To this end, in this work, electrode processes are divided into four component parts with corresponding equivalent circuit diagrams used to emphasize the pseudocapacitive behavior of Co 3 O 4 . After analyzing the properties of Bode plots in the whole frequency range (10 À 2 -10 5 Hz), phase-angle Bode plots are demonstrated to be suitable for revealing the pseudocapacitance for Co 3 O 4 at a certain state. In addition, C ¼ 1= wZ Im ð Þ is utilized to determine the magnitude of the pseudocapacitance and double-layer capacitance. For Co 3 O 4 in the fully charged state (3 V vs. Li + /Li), the pseudocapacitance and double-layer capacitance are approximately 180.28 and 1.32 μF cm À 2 , respectively. Therefore, the goal of monitoring pseudocapacitive behavior for a transition-metal oxide anode such as Co 3 O 4 in a certain state without the influence of double-layer capacitance and faradaic processes controlled by solid-phase diffusion is realized by using Bode plots, greatly promoting the understanding and controllable application of pseudocapacitance.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Characteristics of Cobaltosic Oxide in Organic Electrolyte According to Bode Plots: Double‐Layer Capacitance and Pseudocapacitance

Wang

Peng

et al. 2019

ChemElectroChem

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“…The Co 3 O 4 microspheres were prepared by spray pyrolysis in our previous paper [64]. The precursor solution was prepared by dissolving CoCl 2 ·6H 2 O in distilled water.…”

Section: Synthesis Of Co 3 O 4 Microspheresmentioning

confidence: 99%

“…In our previous researches, porous Ni-Co-Mn-O powders are successfully prepared via spray pyrolysis [62][63][64]. The porous Ni-Co-Mn-O powders are composed of numerous closely packed primary particles, which would turn to submicron-sized particles after solid-state reaction with lithium salt.…”

Section: Introductionmentioning

confidence: 99%

An Ostwald ripening route towards Ni-rich layered cathode material with cobalt-rich surface for lithium ion battery

Wang

et al. 2017

Sci. China Mater.

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“…The XRD patterns were indexed to a mixed phase of NiO (PDF# 44‐1159), MnCo 2 O 4 (PDF# 84‐0482), and Ni 6 MnO 8 (PDF# 49‐1295). Furthermore, NiCl 2 ⋅ x H 2 O was observed in the XRD pattern, which was mainly generated from the chloridization of NiO by gaseous HCl in the furnace reactor . As shown in the XRD pattern, the amount of undesired NiCl 2 ⋅ x H 2 O can be minimized by further heat treatment at 450 °C for 5 h. The XRD patterns of the carbonate precursor prepared by using the solvothermal method are shown in Figure b.…”

Section: Resultsmentioning

confidence: 99%

Influence of the Synthesis Route on the Properties of Hybrid NiO–MnCo₂O₄–Ni₆MnO₈ Anode Materials and their Electrochemical Performances

et al. 2020

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New materials with different morphologies, nanostructures, and components can have structural advantages for application in materials science. Multicomponent‐active hybrid nanostructured materials are among the best candidates for application in electrode materials. Spray pyrolysis and solvothermal synthesis are two popular methods for the preparation of multicomponent‐active hybrid nanostructured materials. In this study, the two types of NiO‐MnCo2O4‐Ni6MnO8 hybrid anode materials for use in lithium‐ion batteries were synthesized by two different methods (spray pyrolysis and solvothermal synthesis), and the differences in their physical and electrochemical properties were compared. The two types of anode material exhibited the same hierarchical hybrid composition, but some different physical characteristics, which affected their electrochemical performance.

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Synthesis of nanoparticles-assembled Co 3 O 4 microspheres as anodes for Li-ion batteries by spray pyrolysis of CoCl 2 solution

Cited by 37 publications

References 48 publications

Electrochemical Characteristics of Cobaltosic Oxide in Organic Electrolyte According to Bode Plots: Double‐Layer Capacitance and Pseudocapacitance

Electrochemical Characteristics of Cobaltosic Oxide in Organic Electrolyte According to Bode Plots: Double‐Layer Capacitance and Pseudocapacitance

An Ostwald ripening route towards Ni-rich layered cathode material with cobalt-rich surface for lithium ion battery

Influence of the Synthesis Route on the Properties of Hybrid NiO–MnCo₂O₄–Ni₆MnO₈ Anode Materials and their Electrochemical Performances

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Synthesis of nanoparticles-assembled Co 3 O 4 microspheres as anodes for Li-ion batteries by spray pyrolysis of CoCl 2 solution

Cited by 37 publications

References 48 publications

Electrochemical Characteristics of Cobaltosic Oxide in Organic Electrolyte According to Bode Plots: Double‐Layer Capacitance and Pseudocapacitance

Electrochemical Characteristics of Cobaltosic Oxide in Organic Electrolyte According to Bode Plots: Double‐Layer Capacitance and Pseudocapacitance

An Ostwald ripening route towards Ni-rich layered cathode material with cobalt-rich surface for lithium ion battery

Influence of the Synthesis Route on the Properties of Hybrid NiO–MnCo2O4–Ni6MnO8 Anode Materials and their Electrochemical Performances

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Influence of the Synthesis Route on the Properties of Hybrid NiO–MnCo₂O₄–Ni₆MnO₈ Anode Materials and their Electrochemical Performances