Nano-Si/C microsphere with hollow double spherical interlayer and submicron porous structure to enhance performance for lithium-ion battery anode

Chen, Hedong; He, Shenggong; Hou, Xianhua; Wang, Shaofeng; Chen, Fuming; Qin, Haiqing; Xia, Yingchun; Zhou, Guofu

doi:10.1016/j.electacta.2019.04.170

Cited by 58 publications

(20 citation statements)

References 55 publications

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“…When capacity rate increases from 0.1 to 0.5 A/g the capacity for carbon coated HCMT@Si composites was decreased dramatically and was increased after 5 to 7th cycle at 0.5 A/g. The similar phenomenon of capacity increasing has been reported [1,[34][35][36][37], which may be ascribed to the activation gradually of silicon without completely reaction in the composite electrode during the subsequent discharge/charge cycles. Other researchers explained that the dramatic increasing in charge capacity maybe attributed to a layer of gelatinous material that forms on the surface of the electrodes.…”

Section: Resultssupporting

confidence: 79%

“…Weight loss in the curves is due to the combustion of carbon in the composite. On the other hand, slow increase of Si is ascribed to the oxidation of Si [1]. Major mass reduction was begun above 500 • C and the weight loss was mainly occurred between 550 • C and 650 • C. It can be explained that the oxidation of carbon in a sample reacted with oxygen atom.…”

Section: Resultsmentioning

confidence: 99%

“…The cyclic performance of all synthesized materials for the subsequent 100 discharge/charge cycles was measured at 0.1 A/g (1st~5th cycle) and 0.5 A/g (6th~100th cycle) as shown in Figure 7a. Many researchers reported that Si electrode has very low charge capacity with retention of below 5% after 100 cycles [1]. When capacity rate increases from 0.1 to 0.5 A/g the capacity for carbon coated HCMT@Si composites was decreased dramatically and was increased after 5 to 7th cycle at 0.5 A/g.…”

Section: Resultsmentioning

confidence: 99%

“…It has been known Silicon (Si) has many advantages such as high theoretical capacity (4200 mAh/g), non-toxic, low cost, and abundant reserve [1][2][3][4][5][6]. Therefore, Si is the one of the most attractive materials as an anode for lithium ion battery.…”

Section: Introductionmentioning

confidence: 99%

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The Synthesis and Electrochemical Performance of Si Composite with Hollow Carbon Microtubes by the Carbonization of Milkweed from Nature as Anode Template for Lithium Ion Batteries

Chung¹,

Kim

et al. 2020

Energies

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It has been reported that improving electrical conductivity and maintaining stable structure during discharge/charge process are challenge for Si to be used as an anode for lithium ion batteries (LIB). To address this problem, milkweed (MW) was carbonized to prepare hollow carbon microtubes (HCMT) derived from biomass as an anode template for LIB. In order to improve electrical conductivity, various materials such as chitosan (CTS), agarose, and polyvinylidene fluoride (PVDF) are used as carbon source (C1, C2, and C3) by carbonization. Carbon coated HCMT@Si composits, HCMT@Si@C1, HCMT@Si@C1@C2, and HCMT@Si@C1@C3, have been successfully synthesized. Changes in structure and crystallinity of HCMT@Si composites were characterized by using X-ray diffraction (XRD). Specific surface area for samples was calculated by using BET (Brunauer–Emmett–Teller). Also, pore size and particle size were obtained by particle and pore size analysis system. The surface morphology was evaluated using high resolution scanning electron microscopy (HR-SEM), Field Emission transmission electron microscopy (TEM). The thermal properties of HCMT@Si composites were analyzed by thermogravimetric analysis (TGA). Our research was performed to study the synthesis and electrochemical performance of Si composite with HCMT by the carbonization of natural micro hollow milkweed to form an inner space. After carbonization at 900 °C for 2 h in N2 flow, inner diameter of HCMT obtained was about 10 μm. The electrochemical tests indicate that HCMT@Si@C1@C3 exhibits discharge capacity of 932.18 mAh/g at 0.5 A/g after 100 cycles.

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Section: Resultssupporting

confidence: 79%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Synthesis and Electrochemical Performance of Si Composite with Hollow Carbon Microtubes by the Carbonization of Milkweed from Nature as Anode Template for Lithium Ion Batteries

Chung¹,

Kim

et al. 2020

Energies

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“…Many efforts have been made to overcome the disadvantages and improve the electrochemical performances of Si anodes, 9–11 carbon coating has been proven to be one of the effective methods by considerable studies 12,13 . The enhanced high‐rate and cycling capacities of Si/carbon (Si/C) composites should be attributed to the fact that carbon materials in Si/C composites can act not only as buffer layer to alleviate the volume expansion of Si, but also as electronic transmission pathway.…”

Section: Introductionmentioning

confidence: 99%

Si/CNTs@melamine‐formaldehyde resin‐based carbon composites and its improved energy storage performances

Zhao

Zhang

Xian

2020

J of Applied Polymer Sci

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In this paper, Si/carbon nanotubes@melamine-formaldehyde resin (MFR)based carbon (Si/CNTs@C) composites have been fabricated by surface modification, electrostatic self-assembly, cross-linking of MFR under hydrothermal treatment and further carbonization. The microstructure of the Si/CNTs@C composites was characterized, and the effects of CNTs content in Si/CNTs@C composites on their electrochemical performances were also investigated in detail. The results indicate Si/CNTs@C composites as anode materials of Liion batteries exhibit better high-rate and cycling performances compared to Si and Si@MFR-based carbon composites. Notably, Si/CNTs@C composites with 10.4 wt% CNTs show specific capacities of 1900, 1879, 1,688, 1,394, 1,189 mAhÁg −1 at 0.2, 0.5, 1, 2, and 3 AÁg −1 , respectively. Even at 4 and 5 AÁg −1 , their capacities still reach 970 and 752 mAhÁg −1 , respectively. Moreover, they deliver a reversible capacity of 1,184 mAhÁg −1 at 0.5 AÁg −1 after 100 cycles. Therefore, the reasonable structure is of great significance for enhancing the electrochemical performances of Si-based composites.

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Recent Progress in Synthesis and Application of Biomass‐Based Hybrid Electrodes for Rechargeable Batteries

Baskar

Singh

Ruban

et al. 2022

Adv Funct Materials

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The rapid growth in electronic and portable devices demands safe, durable, light weight, low cost, high energy, and power density electrode materials for rechargeable batteries. In this context, biomass-based materials and their hybrids are extensively used for energy generation research, which is primarily due to their properties such as large specific surface area, fast ion/ electron kinetics, restricted volume expansion, and restrained shuttle effect. In this review, the key advancements in the preparation of biomass derived porous carbons using different synthesis strategies and their modifications with species such as heteroatoms, metal oxides, metal sulfides, silicon, and other carbon forms are discussed. The electrochemical performances of these materials and the ion storage mechanisms in different batteries including lithium-ion, lithium-sulfur, sodium-ion, and potassium-ion batteries are discussed. Special attention will be paid to the challenges in using porous biomass-derived carbons and the current strategies employed for maximizing the specific capacity and lifetime for battery applications. Finally, the drawbacks in current technology and endeavors for the future research and development in the field to catapult the performances of the biomass derived materials in order to equip them to meet the demands of commercialization are highlighted.

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Nano-Si/C microsphere with hollow double spherical interlayer and submicron porous structure to enhance performance for lithium-ion battery anode

Cited by 58 publications

References 55 publications

The Synthesis and Electrochemical Performance of Si Composite with Hollow Carbon Microtubes by the Carbonization of Milkweed from Nature as Anode Template for Lithium Ion Batteries

The Synthesis and Electrochemical Performance of Si Composite with Hollow Carbon Microtubes by the Carbonization of Milkweed from Nature as Anode Template for Lithium Ion Batteries

Si/CNTs@melamine‐formaldehyde resin‐based carbon composites and its improved energy storage performances

Recent Progress in Synthesis and Application of Biomass‐Based Hybrid Electrodes for Rechargeable Batteries

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