High-energy lithium-ion hybrid supercapacitors composed of hierarchical urchin-like WO3/C anodes and MOF-derived polyhedral hollow carbon cathodes

Nanoscale ◽  
2016 ◽  
Vol 8 (37) ◽  
pp. 16761-16768 ◽  
Author(s):  
Juan Xu ◽  
Yuanyuan Li ◽  
Lei Wang ◽  
Qifa Cai ◽  
Qingwei Li ◽  
...  
Keyword(s):  
Lithium Ion ◽  
High Energy ◽  
Hybrid Supercapacitors ◽  
Hollow Carbon

High energy and power lithium-ion capacitor based on MnO-encased graphene spheres anode and hollow carbon nano-rods cathode

2021 ◽  
pp. 116968
Author(s):  
Zhihua Xiao ◽  
Zhiqing Yu ◽  
Mudassar Ayub ◽  
Shengping Li ◽  
Xinlong Ma ◽  
...  
Keyword(s):  
Lithium Ion ◽  
High Energy ◽  
Lithium Ion Capacitor ◽  
Nano Rods ◽  
Hollow Carbon

scholarly journals Niobium Tungsten Oxide in a Green Water-in-Salt Electrolyte Enables Ultra-Stable Aqueous Lithium-Ion Capacitors

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Shengyang Dong ◽  
Yi Wang ◽  
Chenglong Chen ◽  
Laifa Shen ◽  
Xiaogang Zhang
Keyword(s):  
Tungsten Oxide ◽  
Electrode Materials ◽  
Low Cost ◽  
Negative Electrode ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Green Water ◽  
Lithium Acetate ◽  
Hybrid Supercapacitors

AbstractAqueous hybrid supercapacitors are attracting increasing attention due to their potential low cost, high safety and eco-friendliness. However, the narrow operating potential window of aqueous electrolyte and the lack of suitable negative electrode materials seriously hinder its future applications. Here, we explore high concentrated lithium acetate with high ionic conductivity of 65.5 mS cm−1 as a green “water-in-salt” electrolyte, providing wide voltage window up to 2.8 V. It facilitates the reversible function of niobium tungsten oxide, Nb18W16O93, that otherwise only operations in organic electrolytes previously. The Nb18W16O93 with lithium-ion intercalation pseudocapacitive behavior exhibits excellent rate performance, high areal capacity, and ultra-long cycling stability. An aqueous lithium-ion hybrid capacitor is developed by using Nb18W16O93 as negative electrode combined with graphene as positive electrode in lithium acetate-based “water-in-salt” electrolyte, delivering a high energy density of 41.9 W kg−1, high power density of 20,000 W kg−1 and unexceptionable stability of 50,000 cycles.

scholarly journals Blow-spun N-doped carbon fiber based high performance flexible lithium ion capacitors

RSC Advances ◽  
2020 ◽  
Vol 10 (17) ◽  
pp. 9833-9839
Author(s):  
Changzhen Zhan ◽  
Jianan Song ◽  
Xiaolong Ren ◽  
Yang Shen ◽  
Hui Wu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Energy Density ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Hybrid Supercapacitors

Constructing flexible hybrid supercapacitors is a feasible way to achieve devices with high energy density, high power density and flexibility at the same time.

scholarly journals Robust and Fast Lithium Storage Enabled by Polypyrrole-Coated Nitrogen and Phosphorus Co-Doped Hollow Carbon Nanospheres for Lithium-Ion Capacitors

2021 ◽  
Vol 9 ◽  
Author(s):  
Mengdi Zhang ◽  
Xuan Zheng ◽  
Jiawei Mu ◽  
Pengfei Liu ◽  
Wenhan Yuan ◽  
...  
Keyword(s):  
High Power ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Carbon Nanospheres ◽  
Nitrogen And Phosphorus ◽  
Lithium Storage ◽  
Hollow Carbon ◽  
Co Doped

Lithium-ion capacitors (LICs) have been proposed as an emerging technological innovation that integrates the advantages of lithium-ion batteries and supercapacitors. However, the high-power output of LICs still suffers from intractable challenges due to the sluggish reaction kinetics of battery-type anodes. Herein, polypyrrole-coated nitrogen and phosphorus co-doped hollow carbon nanospheres (NPHCS@PPy) were synthesized by a facile method and employed as anode materials for LICs. The unique hybrid architecture composed of porous hollow carbon nanospheres and PPy coating layer can expedite the mass/charge transport and enhance the structural stability during repetitive lithiation/delithiation process. The N and P dual doping plays a significant role on expanding the carbon layer spacing, enhancing electrode wettability, and increasing active sites for pseudocapacitive reactions. Benefiting from these merits, the NPHCS@PPy composite exhibits excellent lithium-storage performances including high rate capability and good cycling stability. Furthermore, a novel LIC device based on the NPHCS@PPy anode and the nitrogen-doped porous carbon cathode delivers a high energy density of 149 Wh kg−1 and a high power density of 22,500 W kg−1 as well as decent cycling stability with a capacity retention rate of 92% after 7,500 cycles. This work offers an applicable and alternative way for the development of high-performance LICs.

MoSe2/N-Doped Hollow Carbon Spheres Host for Rechargeable Na-Se batteries

2021 ◽  
Author(s):  
Fengping Xiao ◽  
Peng Hu ◽  
Yanni Wu ◽  
Qing Tang ◽  
Nilesh Shinde ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
Storage Systems ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Spheres ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Sodium-selenium (Na-Se) batteries are promising alternatives to Lithium-ion batteries for energy storage systems owing to their high energy density and natural abundance of Na resources. However, their drawbacks of low...

Controllable synthesis of uniform mesoporous H-Nb2O5/rGO nanocomposites for advanced lithium ion hybrid supercapacitors

2019 ◽  
Vol 7 (2) ◽  
pp. 693-703 ◽  
Author(s):  
Shengyuan Li ◽  
Ting Wang ◽  
Wangqin Zhu ◽  
Jiabiao Lian ◽  
Yunpeng Huang ◽  
...  
Keyword(s):  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
Controllable Synthesis ◽  
Hybrid Supercapacitors ◽  
Excellent Cycling Stability ◽  
Power Densities

Uniform mesoporous H-Nb2O5/rGO nanocomposites are developed for advanced lithium ion hybrid supercapacitors with remarkably high energy/power densities and excellent cycling stability.

Self-Assembled Binary Organic Granules with Multiple Lithium Uptake Mechanisms toward High-Energy Flexible Lithium-Ion Hybrid Supercapacitors

2018 ◽  
Vol 8 (30) ◽  
pp. 1802273 ◽  
Author(s):  
Zhongli Hu ◽  
Shah Sayed ◽  
Tao Jiang ◽  
Xingyu Zhu ◽  
Chen Lu ◽  
...  
Keyword(s):  
Lithium Ion ◽  
High Energy ◽  
Hybrid Supercapacitors ◽  
Self Assembled ◽  
Uptake Mechanisms

scholarly journals Recent Progress on Two-Dimensional Carbon Materials for Emerging Post-Lithium (Na+, K+, Zn2+) Hybrid Supercapacitors

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2137
Author(s):  
Chao Han ◽  
Xinyi Wang ◽  
Jian Peng ◽  
Qingbing Xia ◽  
Shulei Chou ◽  
...  
Keyword(s):  
Active Sites ◽  
Recent Progress ◽  
Carbon Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Two Dimensional ◽  
Hybrid Supercapacitors ◽  
Concept Review ◽  
Hybrid Capacitors

The hybrid ion capacitor (HIC) is a hybrid electrochemical energy storage device that combines the intercalation mechanism of a lithium-ion battery anode with the double-layer mechanism of the cathode. Thus, an HIC combines the high energy density of batteries and the high power density of supercapacitors, thus bridging the gap between batteries and supercapacitors. Two-dimensional (2D) carbon materials (graphite, graphene, carbon nanosheets) are promising candidates for hybrid capacitors owing to their unique physical and chemical properties, including their enormous specific surface areas, abundance of active sites (surface and functional groups), and large interlayer spacing. So far, there has been no review focusing on the 2D carbon-based materials for the emerging post-lithium hybrid capacitors. This concept review considers the role of 2D carbon in hybrid capacitors and the recent progress in the application of 2D carbon materials for post-Li (Na+, K+, Zn2+) hybrid capacitors. Moreover, their challenges and trends in their future development are discussed.

Sign in / Sign up

Export Citation Format

Share Document