High yield production of 3D graphene powders by thermal chemical vapor deposition and application as highly efficient conductive additive of lithium ion battery electrodes

Ji, Xiulin; Mu, Yongbiao; Liang, Jingbing; Jiang, Tongying; Zeng, Jie; Lin, Zijia; Lin, Yanhong; Yu, Jie

doi:10.1016/j.carbon.2021.01.128

Cited by 40 publications

(19 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2d and e) reveal that the thickness of VG in the edge region is 1 to 2 atomic layers, and the inner region is thicker, which indicates a tapered structure. 27 The inset in Fig. 2e shows a selected area diffraction pattern of the nanosheet wall.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

Lin

et al. 2022

J. Mater. Chem. A

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

Lin

et al. 2022

J. Mater. Chem. A

Self Cite

View full text Add to dashboard Cite

show abstract

“…Figure 2 a shows the X‐ray diffraction (XRD) patterns of CB, CB‐G, CB/MnO 2 3 h, and CB‐G/MnO 2 3 h. The XRD pattern of CB shows two peaks at 24.8° and 43°, corresponding to the (002) and (100) planes of graphitic structure, respectively. [ 42 ] After growing graphene on CB, the (002) peak shifts to 26.5°, which is ascribed to the decrease of (002) interlayer spacing, indicating the better crystallinity of graphite structure. [ 32 ] This can be further confirmed by the narrower full width at half maximum of the (002) peak.…”

Section: Resultsmentioning

confidence: 99%

Nano Carbon/Vertical Graphene/MnO₂ Nanosheets Composite Particles for High‐Performance Supercapacitors

Lin

Zhao

et al. 2022

Energy Tech

Self Cite

View full text Add to dashboard Cite

Compounding carbon substrate materials with pseudocapacitive materials is an important strategy for making high-performance supercapacitor materials. Nano carbon black (CB) is widely used as the conductive additive in energy storage devices owing to its low cost, high conductivity, good spreadability, and excellent ability of adsorbing electrolyte, reducing the binder consumption, adjusting the pore size and fraction of the electrode, and high-voltage operation. However, very little attention has been paid to applying CB as the substrate materials for producing composite active materials. Herein, a surface-modified CB is developed by growing vertical graphene nanosheets on the surface of CB by chemical vapor deposition. After growing MnO 2 nanosheets on the modified CB, the obtained nanocomposites deliver high specific capacitance, rate performance, and cycling stability. The assembled symmetric supercapacitor obtains a high energy density of 54 Wh kg À1 at a power density of 181 W kg À1 . Systematic experimental research reveals the superior performance benefits from the surface modification of CB by vertical graphene nanosheets, which improves the electrical conductivity, thermal stability, and pore structure of the whole electrodes. This method is of great promise for the development of new materials for highperformance supercapacitors.

show abstract

“…The coverage of amorphous carbon on the spongy structure showed little obstruction on the D Li + , which was in the range of 10 –18 –10 –15 cm 2 s –1 (Figure f). This phenomenon was mainly caused by the abundant defects in the amorphous carbon, which has been proven to facilitate lithium ion’s diffusion . Commonly, lithium ion is stored in the anode via the diffusion and capacitance behaviors.…”

Section: Resultsmentioning

confidence: 99%

Recycling Waste Al–Si Alloy for Micrometer-Sized Spongy Si with High Areal/Volumetric Capacity and Stability in Lithium-Ion Batteries

Cao

Xiao

Wang

et al. 2022

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

People are becoming more conscious of the necessity of sustainable development, and waste recycling is getting increased attention. As for the highly concerned Si in lithium-ion batteries (LIBs), the recycled nanoscale Si displays a small packing density that would impede its industrialization. Moreover, Si recycling commonly shows a lengthy process and specialized device usage, resulting in high energy/cost consumption and pollution. This study employs waste Al–Si alloy as raw materials and proposes a hypothermal chemical corrosion method to recycle and construct micrometer-sized spongy Si. The nanopores/nanoskeletons in the spongy Si and the amorphous carbon coating (Si@C) regulate electron/lithium ion transference, capacitance behavior, and structural stability to achieve high areal/volumetric capacity and cycling performance. The spongy Si@C anode delivers an areal and volumetric capacity of 1.13 mAh cm–2 and 1909 mAh cm–3 (0.05 C), respectively. Increasing mass loading further improves areal capacity to 2.52 mAh cm–2 (0.1 mA cm–2) which retains 0.89 mAh cm–2 after 100 cycles at 1.2 mA cm–2. Furthermore, in the full-cell configuration, the initial energy density is 483 Wh kg–1 at 0.5 C, and the capacity retention is 84% after 150 cycles at 2 C. This study provides novel insights into the efficient and economical fabrication of high-performance LIBs.

show abstract

High yield production of 3D graphene powders by thermal chemical vapor deposition and application as highly efficient conductive additive of lithium ion battery electrodes

Cited by 40 publications

References 61 publications

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

Nano Carbon/Vertical Graphene/MnO₂ Nanosheets Composite Particles for High‐Performance Supercapacitors

Recycling Waste Al–Si Alloy for Micrometer-Sized Spongy Si with High Areal/Volumetric Capacity and Stability in Lithium-Ion Batteries

Contact Info

Product

Resources

About

High yield production of 3D graphene powders by thermal chemical vapor deposition and application as highly efficient conductive additive of lithium ion battery electrodes

Cited by 40 publications

References 61 publications

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

Nitrogen-doped porous carbon fiber/vertical graphene as an efficient polysulfide conversion catalyst for high-performance lithium–sulfur batteries

Nano Carbon/Vertical Graphene/MnO2 Nanosheets Composite Particles for High‐Performance Supercapacitors

Recycling Waste Al–Si Alloy for Micrometer-Sized Spongy Si with High Areal/Volumetric Capacity and Stability in Lithium-Ion Batteries

Contact Info

Product

Resources

About

Nano Carbon/Vertical Graphene/MnO₂ Nanosheets Composite Particles for High‐Performance Supercapacitors