Mesoporous V2O5/Ketjin black nanocomposites for all-solid-state symmetric supercapacitors

CrystEngComm ◽  
2015 ◽  
Vol 17 (7) ◽  
pp. 1673-1679 ◽  
Author(s):  
Tao Peng ◽  
Jun Wang ◽  
Qi Liu ◽  
Jingyuan Liu ◽  
Peng Wang
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Maximum Energy ◽  
Cycling Stability ◽  
Gel Electrolyte ◽  
Practical Applications ◽  
Areal Capacitance ◽  
Symmetric Supercapacitor ◽  
Pva Gel ◽  
Good Cycling Stability

The mesoporous V2O5/Ketjin black nanocomposites electrode (VK2) shows high areal capacitance and good cycling stability in a LiCl/PVA gel electrolyte. Furthermore, the VK-based all-solid-state symmetric supercapacitor can provide the maximum energy density of 56.83 W h kg−1, indicating their potential for practical applications.

A high voltage solid state symmetric supercapacitor based on graphene–polyoxometalate hybrid electrodes with a hydroquinone doped hybrid gel-electrolyte

2015 ◽  
Vol 3 (46) ◽  
pp. 23483-23492 ◽  
Author(s):  
Deepak P. Dubal ◽  
Jullieth Suarez-Guevara ◽  
Dino Tonti ◽  
Eduardo Enciso ◽  
Pedro Gomez-Romero
Keyword(s):  
Solid State ◽  
Energy Density ◽  
High Voltage ◽  
High Energy ◽  
Gel Electrolyte ◽  
High Energy Density ◽  
Hybrid Gel ◽  
Symmetric Supercapacitor

Development of high energy density hybrid electrode based on rGO–PMo12 for all-solid state supercapacitors along with actual demonstration of lighting of thirty one LEDs (NEO).

A strong and highly flexible aramid nanofibers/PEDOT:PSS film for all-solid-state supercapacitors with superior cycling stability

2016 ◽  
Vol 4 (44) ◽  
pp. 17324-17332 ◽  
Author(s):  
Yunan Li ◽  
Guangyuan Ren ◽  
Zhiqin Zhang ◽  
Chao Teng ◽  
Yanzi Wu ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Cycling Stability ◽  
Symmetric Supercapacitor ◽  
Superior Cycling Stability

A highly flexible all-solid-state symmetric supercapacitor using an aramid nanofibers/PEDOT:PSS (ANFs/PEDOT:PSS) film exhibits excellent energy density and cycling stability.

An all-solid-state asymmetric device based on a polyaniline hydrogel for a high energy flexible supercapacitor

2017 ◽  
Vol 41 (1) ◽  
pp. 237-244 ◽  
Author(s):  
Hamid Heydari ◽  
Mohammad B. Gholivand
Keyword(s):  
Solid State ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
Gel Electrolyte ◽  
Asymmetric Supercapacitor ◽  
Flexible Supercapacitor ◽  
Asymmetric Device

3D porous PANI hydrogel and a gel electrolyte were used to fabricate a high performance, all-solid-state, flexible asymmetric supercapacitor with an energy density of up to 6.16 mW h cm−3.

Ultrahigh energy density of a N, O codoped carbon nanosphere based all-solid-state symmetric supercapacitor

2019 ◽  
Vol 7 (3) ◽  
pp. 1177-1186 ◽  
Author(s):  
Ziyang Song ◽  
Dazhang Zhu ◽  
Liangchun Li ◽  
Tao Chen ◽  
Hui Duan ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Ultrahigh Energy ◽  
Carbon Nanospheres ◽  
Symmetric Supercapacitor

A novel quinone–amine route is developed to fabricate N, O codoped carbon nanospheres for an all-solid-state supercapacitor with an ultrahigh energy density.

Integration of ultrathin graphene/polyaniline composite nanosheets with a robust 3D graphene framework for highly flexible all-solid-state supercapacitors with superior energy density and exceptional cycling stability

2017 ◽  
Vol 5 (11) ◽  
pp. 5466-5474 ◽  
Author(s):  
Ke Li ◽  
Jingjing Liu ◽  
Yanshan Huang ◽  
Fanxing Bu ◽  
Yuxi Xu
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Conducting Polymer ◽  
Cycling Stability ◽  
3D Graphene

Superior energy density and exceptional cycling stability of conducting polymer-based flexible all-solid-state supercapacitors have been successfully achieved.

Low-crystalline tungsten trioxide anode with superior electrochemical performance for flexible solid-state asymmetry supercapacitor

2018 ◽  
Vol 6 (19) ◽  
pp. 8986-8991 ◽  
Author(s):  
Jiayi Chen ◽  
Haiyan Wang ◽  
Jiang Deng ◽  
Chunmei Xu ◽  
Yong Wang
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Electrochemical Performance ◽  
Porous Carbon ◽  
Tungsten Trioxide ◽  
Cycling Stability ◽  
Carbon Cloth ◽  
Excellent Cycling Stability ◽  
Low Crystalline

Assembling a flexible solid-state asymmetry SC, based on LC-WO3in situ grown on porous carbon cloth, achieves an energy density of 7.6 mW h cm−3 and excellent cycling stability with 92% capacitance retention after 10 000 cycles.

Microporous Ni11(HPO3)8(OH)6 nanocrystals for high-performance flexible asymmetric all solid-state supercapacitors

2014 ◽  
Vol 43 (45) ◽  
pp. 17000-17005 ◽  
Author(s):  
Yanping Gao ◽  
Junhong Zhao ◽  
Zhen Run ◽  
Guangqin Zhang ◽  
Huan Pang
Keyword(s):  
Solid State ◽  
Energy Density ◽  
High Performance ◽  
High Stability ◽  
Maximum Energy ◽  
Asymmetric Supercapacitor

Microporous Ni11(HPO3)8(OH)6 nanocrystals were successfully applied to create a flexible solid-state asymmetric supercapacitor, which achieved a maximum energy density of 0.45 mW h cm−3 with high stability for 10 000 cycles.

High-Performance Asymmetric Supercapacitors Based on the Ni1.5Co1.5S4@CNTs Nanocomposites

NANO ◽  
2020 ◽  
Vol 15 (10) ◽  
pp. 2050136
Author(s):  
Xuan Zheng ◽  
Xingxing He ◽  
Jinlong Jiang ◽  
Zhengfeng Jia ◽  
Yu Li ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
Specific Capacity ◽  
Negative Electrode ◽  
High Energy ◽  
Cycling Stability ◽  
Power Delivery ◽  
High Energy Density ◽  
Practical Applications

In this paper, the Ni[Formula: see text]Co[Formula: see text]S4@CNTs nanocomposites containing different carbon nanotubes (CNT) content were prepared by a one-step hydrothermal method. More hydroxyl and carboxyl groups were introduced on the surface of CNTs by acidizing treatment to increase the dispersion of CNTs. The acid-treated CNTs can more fully compound with Ni[Formula: see text]Co[Formula: see text]S4 nanoparticles to form heterostructure. When the CNTs content is 10[Formula: see text]wt.%, the Ni[Formula: see text]Co[Formula: see text]S4@CNTs-10 nanocomposite exhibits the highest specific capacity of 210[Formula: see text]mAh[Formula: see text]g[Formula: see text] in KOH aqueous electrolytes at current density of 1[Formula: see text]A[Formula: see text]g[Formula: see text]. The superior performances of the Ni[Formula: see text]Co[Formula: see text]S4@CNTs-10 nanocomposite are attributed to the effective synergic effects of the high specific capacity of Ni[Formula: see text]Co[Formula: see text]S4 and the excellent conductivity of CNTs. An asymmetric supercapacitor (ASC) was assembled based on Ni[Formula: see text]Co[Formula: see text]S4@CNTs-10 positive electrode and activated carbon (AC) negative electrode, which delivers a high energy density of 61.2[Formula: see text]Wh[Formula: see text]kg[Formula: see text] at a power density of 800[Formula: see text]W[Formula: see text]kg[Formula: see text], and maintains 34.8[Formula: see text]Wh[Formula: see text]kg[Formula: see text] at a power density of 16079[Formula: see text]W[Formula: see text]kg[Formula: see text]. Also, the ASC device shows an excellent cycling stability with 91.49% capacity retention and above 94% Columbic efficiency after 10 000 cycles at 10[Formula: see text]A[Formula: see text]g[Formula: see text]. This aqueous asymmetric Ni[Formula: see text]Co[Formula: see text]S4@CNTs//AC supercapacitor is promising for practical applications due to its advantages such as high energy density, power delivery and cycling stability.

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