scholarly journals Free-standing graphene/bismuth vanadate monolith composite as a binder-free electrode for symmetrical supercapacitors

RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 24796-24804 ◽  
Author(s):  
Lingjuan Deng ◽  
Jiahuan Liu ◽  
Zhanying Ma ◽  
Guang Fan ◽  
Zong-huai Liu
Keyword(s):  
Energy Density ◽  
High Energy ◽  
Bismuth Vanadate ◽  
High Energy Density ◽  
Free Standing ◽  
Binder Free

A symmetrical supercapacitor with a high energy density has been assembled based on a free-standing GR/BiVO4 monolith composite.

Organic solvent-assisted free-standing Li2MnO3·LiNi1/3Co1/3Mn1/3O2 on 3D graphene as a high energy density cathode

2015 ◽  
Vol 51 (91) ◽  
pp. 16381-16384 ◽  
Author(s):  
Yuelong Xin ◽  
Liya Qi ◽  
Yiwei Zhang ◽  
Zicheng Zuo ◽  
Henghui Zhou ◽  
...  
Keyword(s):  
Energy Density ◽  
Organic Solvent ◽  
Freeze Drying ◽  
Large Scale ◽  
High Energy ◽  
High Energy Density ◽  
Free Standing ◽  
3D Graphene ◽  
Active Particles

A novel organic solvent-assisted freeze-drying pathway, which can effectively protect and uniformly distribute active particles, is developed to fabricate a free-standing Li2MnO3·LiNi1/3Co1/3Mn1/3O2 (LR)/rGO electrode on a large scale.

A High-Performance Free-Standing Zn Anode for Flexible Zinc-Ion Batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Chenxi Gao ◽  
Jiawei Wang ◽  
Yuan Huang ◽  
Zixuan Li ◽  
Jiyan Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Low Cost ◽  
High Energy ◽  
Zinc Ion ◽  
High Energy Density ◽  
Free Standing ◽  
Energy Device ◽  
Zn Anode ◽  
Significant Attention

Zinc-ion batteries (ZIBs) have attracted significant attention owing to their high safety, high energy density, and low cost. ZIBs have been studied as a potential energy device for portable and...

3D Alumina-Graphene Hybrid Nanofibers as a Binder‐Free Cathode for Rechargeable Li‐S Batteries

2019 ◽  
Vol 799 ◽  
pp. 191-196
Author(s):  
Masoud Taleb ◽  
Roman Ivanov ◽  
Irina Hussainova
Keyword(s):  
Energy Density ◽  
Active Material ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Rechargeable Lithium Batteries ◽  
Alumina Nanofibers ◽  
Electrochemically Active ◽  
Binder Free ◽  
Li Ion

Lithium-sulfur (Li-S) batteries are promising as a next generation energy-storage device because their energy density is higher than that of current Li-ion devices. Alumina nanofibers coated with graphene is electrochemically active material with tunable graphene flakes and surface area. Combination of this material with sulfur leads to an improved initial discharge capacity and cycle stability, probably due to improved electrical and ionic transport during electrochemical reactions. Based on this understanding, the resulting graphene sulfur composite showed high and stable specific capacities up to ∼900 mAh/g after 50 cycles, representing a promising cathode material for rechargeable lithium batteries with high energy density.

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