Carbon/binder free 3D Si@Cu2O anode for high performance lithium ion battery

Ren, Yanbiao; He, Xiaowu; Sui, Wubin; Zhang, Lincai; Zhang, Han; Xia, Yaoyao; Shi, Tiesheng; Song, Mengyuan; Wang, Kunpeng; Li, Guichen

doi:10.1016/j.jmrt.2020.05.086

Cited by 8 publications

(2 citation statements)

References 34 publications

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“…The small-sized irregular microsphere feature of the Ni3-Cu-P electrode material allows the electrode to have a large active surface area for rapid ion transport and faradaic reaction, thus enhancing the electrochemical performance of the electrode. 90,91 The FESEM images of Ni-P and Cu-P binder-free electrodes are shown in Figs. 4e-4f and 4g-4h, respectively, at both x 5,000 and x 10,000 magnifications.…”

Section: Resultsmentioning

confidence: 99%

Optimization and Fabrication of Binder-Free Nickel-Copper Phosphate Battery-type Electrode Using Microwave-Assisted Hydrothermal Method

Gerad

Numan²,

Khalid³

et al. 2023

J. Electrochem. Soc.

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A binder-free nickel-copper phosphate battery-type electrode was fabricated using a microwave-assisted hydrothermal technique. The fabrication process was optimized with Design of Experiment (DoE) software and then validated experimentally. The electrode made at 90°C for 12.5 minutes, with a Ni:Cu precursor ratio of 3:1, had the highest specific capacity. The experimental specific capacity of the optimized nickel-copper phosphate (Ni3-Cu-P) binder-free electrode was 96.2% of the theoretical value predicted by the software, which was within 10% error. Moreover, the growth of amorphous Ni3-Cu-P electrode material with irregular microspheres of small size was observed on the surface of nickel foam. These amorphous microspherical shapes of the Ni3-Cu-P electrode material provide more electroactive sites and a larger active surface area for faradaic reaction. In electrochemical energy storage applications, the Ni3-Cu-P electrode outperformed the bare Ni-P and Cu-P electrodes, with the highest areal capacity (0.77 C/cm2), the lowest charge transfer resistance (81.7 Ω), and the highest capacity retention (83.9%) at 2.0 mA/cm2. The study indicates that the Ni3-Cu-P electrode's exceptional electrochemical properties result from the interaction between nickel and copper in the binary metal phosphate framework, making it an excellent choice for battery-type electrodes used in electrochemical energy storage applications.

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Section: Resultsmentioning

confidence: 99%

Optimization and Fabrication of Binder-Free Nickel-Copper Phosphate Battery-type Electrode Using Microwave-Assisted Hydrothermal Method

Gerad

Numan²,

Khalid³

et al. 2023

J. Electrochem. Soc.

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show abstract

“…Such types of including its capacity to accelerate chemical processes in the presence of light, and its ban gap being in the visible spectrum, having a shortfall in electrons and holes, and having high stability, Cu2O is a very alluring metal oxide semiconductor 3 . As an important type of semiconductor with a band gap of 2.17 eV 4 , Cu2O has been widely used in catalysis 5 , magnetic storage media 6 , solar cells 7 , dyes photodegradation 8 , lithium-ion battery electrodes 9 , and gas sensors 10 . In fact, the size, shape, and form of the nanoparticles have a significant impact on their attributes and activities 11 .…”

Section: Introductionmentioning

confidence: 99%

Visible-Light-driven Photocatalytic Properties of Copper(I) Oxide (Cu2O) and Its Graphene-based Nanocomposites

Rabbani,

Naz,

Berdimurodov

et al. 2023

Baghdad Sci.J

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In this study, an improved process was proposed for the synthesis of structure-controlled Cu2O nanoparticles, using a simplified wet chemical method at room temperature. A chemical solution route was established to synthesize Cu2O crystals with various sizes and morphologies. The structure, morphology, and optical properties of Cu2O nanoparticles were analyzed by X-ray diffraction, SEM (scanning electron microscope), and UV-Vis spectroscopy. By adjusting the aqueous mixture solutions of NaOH and NH2OH•HCl, the synthesis of Cu2O crystals with different morphology and size could be realized. Strangely, it was found that the change in the ratio of de-ionized water and NaOH aqueous solution led to the synthesis of Cu2O crystals of different sizes, while the morphology of Cu2O crystals was not affected. The synthesized Cu2O crystal samples were used as photocatalysts for methyl orange (MO) dye decomposition, as a model molecule, to evaluate the photocatalytic activities. However, under 200 watts of a visible light source, there are four samples with and without graphene-based nanocomposite of Cu2O NPs. The results showed that, compared with roughly spherical, irregular but thick plates, brick and small granule spheres shaped Cu2O nanoparticles provided better activity. The Cu2O sample with irregular but thick platelet-like shapes, having an average particle size of 0.53 µm, exhibited excellent photocatalytic activity (99.08% degradation). In addition, by reducing the size of Cu2O particles and preparing their graphene composition, one can fabricate a sample (Cu2-Cu2Gr) with the highest efficiency which has significantly better photocatalytic activity in comparison to the others. This work represents an innovative strategy for pre-the-case production of nanomaterials with shapes and sizes, that is, Cu2O crystals, with excellent photocatalytic activity through compositing with graphene

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Binder free Cu2O/CuO/Cu/Carbon-polymer composite fibers derived from metal/organic hybrid materials through electrodeposition method as high performance anode materials for lithium-ion batteries

Xie

Wang

et al. 2021

Journal of Alloys and Compounds

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Carbon/binder free 3D Si@Cu2O anode for high performance lithium ion battery

Cited by 8 publications

References 34 publications

Optimization and Fabrication of Binder-Free Nickel-Copper Phosphate Battery-type Electrode Using Microwave-Assisted Hydrothermal Method

Optimization and Fabrication of Binder-Free Nickel-Copper Phosphate Battery-type Electrode Using Microwave-Assisted Hydrothermal Method

Visible-Light-driven Photocatalytic Properties of Copper(I) Oxide (Cu2O) and Its Graphene-based Nanocomposites

Binder free Cu2O/CuO/Cu/Carbon-polymer composite fibers derived from metal/organic hybrid materials through electrodeposition method as high performance anode materials for lithium-ion batteries

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