Sub-100nm hollow SnO2@C nanoparticles as anode material for lithium ion batteries and significantly enhanced cycle performances

Yang, Sui; Zhou, Banghong; Mei, Lei; Huang, Lanping; Pan, Jun; Wu, Wei; Zhang, Hongbo

doi:10.1016/j.cclet.2015.05.051

Cited by 23 publications

(3 citation statements)

References 39 publications

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“…Figure 4B exhibits the galvanostatic charge–discharge profiles of the 12 h‐dealloyed 3D DHP Cu–Sn/PANI electrode at a current density of 1 mA cm −2 . It is clear that the 1st discharge and charge processes deliver significantly large areal capacities of 16.18 and 13.89 mAh cm −2 , respectively, with initial CE as high as 85.8%, implying the markedly less irreversible Li + consumption during the 1st cycle, which is, to the best of our knowledge, rarely seen in common Sn‐based electrodes 28,36,38,48‐54 . Moreover, two obvious discharge and charge plateaus at ca.…”

Section: Resultsmentioning

confidence: 89%

“…It is clear that the 1st discharge and charge processes deliver significantly large areal capacities of 16.18 and 13.89 mAh cm −2 , respectively, with initial CE as high as 85.8%, implying the markedly less irreversible Li + consumption during the 1st cycle, which is, to the best of our knowledge, rarely seen in common Sn-based electrodes. 28,36,38,[48][49][50][51][52][53][54] Moreover, two obvious discharge and charge plateaus at ca. 0.1 and 0.7 V (vs. Li/Li + ) can be observed after the 1st cycle, assigning to the reversible electrochemical alloying and dealloying processes of Sn reacting with Li + , as depicted by Equations ( 3) and (4).…”

Section: Electrochemical Propertiesmentioning

confidence: 99%

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Rational design of PANI‐modified three‐dimensional dendritic hierarchical porous Cu–Sn nanocomposites as thick anodes with ultrahigh areal capacity and good cycling stability

et al. 2023

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A simple and effective one‐step strategy gives freestanding 3D dendritic hierarchical porous (DHP) Cu–Sn nanocomposites by chemically dealloying a designed Cu35Sn65 (at.%) alloy with dendritic segregation in a specific corrosive solution. A 3D DHP Cu–Sn modified by polyaniline (PANI) further makes the nanocomposites with improved conductivity and structural stability, which are typical of bimodal pore‐size distribution comprising a dendritic micron‐sized ligament‐channel structure with interconnected nanoporous channel walls. The as‐prepared 12 h dealloyed 3D DHP nanocomposites with ca. 200 μm in thickness can serve as binder‐free thick anodes for lithium‐ion batteries (LIBs) and exhibit enhanced Li storage performance with a ultrahigh first reversible capacity of 13.9 mAh cm−2 and an initial CE of 85.8%, good cycling stability with a capacity retention of 73.5% after 50 cycles, and superior rate capability with a reversible capacity of 11.95 mAh cm−2 after high‐rate cycling. These Sn‐based anodes can effectively alleviate the volume variation, enhance the loading of active materials, strengthen the stability of solid electrolyte interphase films, shorten the Li+ migration distance, and improve the electron conductivity. Additionally, the Sn content and areal capacity of the 3D DHP electrode can be tuned by changing the dealloying time of the initial alloy for 3D tin‐based thick anodes with adjustable capacities toward high‐performance LIBs.

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Section: Resultsmentioning

confidence: 89%

Section: Electrochemical Propertiesmentioning

confidence: 99%

Rational design of PANI‐modified three‐dimensional dendritic hierarchical porous Cu–Sn nanocomposites as thick anodes with ultrahigh areal capacity and good cycling stability

et al. 2023

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“…Furthermore, the photoresponse in visible-light regions open the possibilities of Sn3O4 activated by sunlight irradiation as the highest visible light source in-universe. Moreover, several works have explored Sn3O4 as advanced material and successfully applied as chemical and gas sensors 11 , anode materials for lithium-ion battery 12,13 , solar cells 14,15 , and photocatalysts 16 . To be specific as photocatalytic material, the visible-light irradiation introduced the electron from valence band to conduction band of Sn3O4, leaving a hole (h + ) at its surface.…”

Section: Introductionmentioning

confidence: 99%

HIGH EFFICIENT VISIBLE-LIGHT ACTIVATED PHOTO CATALYTIC SEMICONDUCTOR SnO2/Sn3O4 HETEROSTRUCTURE IN DIRECT BLUE 71 (DB71) DEGRADATION

Huda¹,

Mahendra²,

Ichwani³

et al. 2019

RJC

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The SnO2/Sn3O4 were successfully prepared using a one-step hydrothermal method and exhibit the heterostructure formation. The heterostructure formation facilitates the enhancing of visible-light photoresponse of SnO2 which well known as the UV-light activated semiconductor. The heterostructure formation also exhibits high efficient photocatalytic performance by completely degrading 10 ppm of DB71 in 120 minutes after adding 50 mg of prepared-Tin oxide with a kinetic rate constant of 4.636 x 10 -2 min -1 . The kinetic constant rate of prepared-Tin oxide has 2.5 and 3 times faster compared to the kinetic constant rates of SnO2 and Sn3O4, respectively. The high efficient photocatalytic degradation was generated by the improvement of carrier mobilities through manipulating band alignment between SnO2 and Sn3O4 and prevented the recombination of photogenerated hole-electron which commonly generated in the intrinsic semiconductor. Heterostructure SnO2/Sn3O4 was not only forming high-efficiency photocatalytic degradation but also exhibiting blue shifting phenomenon. The UV-Vis adsorption response approaches were used to investigate and propose the photocatalytic degradation mechanism. After 120 minutes, there were only benzene adsorption peaks detected indicating the mineralization of DB71 dyes.

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Binary Carbon Modification Promoting the Electrochemical Performance of Silicon Anode for Lithium‐Ion Batteries

et al. 2023

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As the research on lithium-ion battery cathode materials gradually breaks through the saturation, the anode materials for lithium-ion batteries have received wide attention because of their promising future. Silicon electrodes, in particular, are attracting increasing attention. In this paper, the Si/G precursor was achieved by simple mechanical ball milling. Two silicon based composite electrode materials Si@TA and Si@TA-G were synthesized by spontaneous polymerization of tannic acid on precursor surface in Tris buffer solution. For the poor electrical conductivity of silicon, graphite was added as a carbon source to avoid the direct contact between silicon and electrolyte during charge/discharge process by forming tannic acid coating on silicon surface.The Si@TA composites achieve a discharge specific capacity of 927.4 mAh g À 1 at 100 mA g À 1 current density after 50 cycles with a retention rate of 87.1 % while the reversible capacity of Si@TA-G is 1249.8 mAh g À 1 with a retention rate is 93.6 %. This unique composite method provides new insights into the modification of silicon anode materials.

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Sub-100nm hollow SnO2@C nanoparticles as anode material for lithium ion batteries and significantly enhanced cycle performances

Cited by 23 publications

References 39 publications

Rational design of PANI‐modified three‐dimensional dendritic hierarchical porous Cu–Sn nanocomposites as thick anodes with ultrahigh areal capacity and good cycling stability

Rational design of PANI‐modified three‐dimensional dendritic hierarchical porous Cu–Sn nanocomposites as thick anodes with ultrahigh areal capacity and good cycling stability

HIGH EFFICIENT VISIBLE-LIGHT ACTIVATED PHOTO CATALYTIC SEMICONDUCTOR SnO2/Sn3O4 HETEROSTRUCTURE IN DIRECT BLUE 71 (DB71) DEGRADATION

Binary Carbon Modification Promoting the Electrochemical Performance of Silicon Anode for Lithium‐Ion Batteries

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