In situ grown nickel selenide on graphene nanohybrid electrodes for high energy density asymmetric supercapacitors

Nanoscale ◽  
2018 ◽  
Vol 10 (43) ◽  
pp. 20414-20425 ◽  
Author(s):  
Balakrishnan Kirubasankar ◽  
Vignesh Murugadoss ◽  
Jing Lin ◽  
Tao Ding ◽  
Mengyao Dong ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors

A NiSe–G∥AC asymmetric supercapacitor with both pseudocapacitance and EDLC mechanisms provides an energy density of 50.1 W h kg−1 and a power density of 816 W kg−1.

scholarly journals In situ construction of yolk–shell zinc cobaltite with uniform carbon doping for high performance asymmetric supercapacitors

2018 ◽  
Vol 6 (19) ◽  
pp. 9109-9115 ◽  
Author(s):  
Xiaoya Chang ◽  
Lei Zang ◽  
Song Liu ◽  
Mengying Wang ◽  
Huinan Guo ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
High Energy ◽  
Carbon Doping ◽  
High Energy Density ◽  
Asymmetric Supercapacitors

Yolk–shell ZnCo2O4 with in situ formed carbon shows great potential for supercapacitors, which delivers high energy density and power density.

Hollow NiCo2S4 nanotube arrays grown on carbon textile as a self-supported electrode for asymmetric supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 9950-9957 ◽  
Author(s):  
Liang Hao ◽  
Laifa Shen ◽  
Jie Wang ◽  
Yunling Xu ◽  
Xiaogang Zhang
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
High Energy ◽  
High Energy Density ◽  
Nanotube Arrays ◽  
Asymmetric Supercapacitor ◽  
High Power Density ◽  
Asymmetric Supercapacitors

We developed an asymmetric supercapacitor using NiCo2S4 nanotube arrays grown on carbon textile, achieving a high energy density (∼40.1 W h kg−1 at 451 W kg−1), a high power density (∼4725 W kg−1 at 21 W h kg−1) and excellent cyclability.

In situ growth of NiCo2S4@Ni3V2O8 on Ni foam as a binder-free electrode for asymmetric supercapacitors

2016 ◽  
Vol 4 (15) ◽  
pp. 5669-5677 ◽  
Author(s):  
Lengyuan Niu ◽  
Yidan Wang ◽  
Fengping Ruan ◽  
Cheng Shen ◽  
Shen Shan ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
High Power Density ◽  
In Situ Growth ◽  
Ni Foam ◽  
Asymmetric Supercapacitors ◽  
Binder Free

A NiCo2S4@Ni3V2O8//AC asymmetric supercapacitor was successfully fabricated and it can deliver both high energy density and high power density.

Flexible high-energy asymmetric supercapacitors based on MnO@C composite nanosheet electrodes

2017 ◽  
Vol 5 (2) ◽  
pp. 804-813 ◽  
Author(s):  
Neng Yu ◽  
Kai Guo ◽  
Wei Zhang ◽  
Xianfu Wang ◽  
Ming-Qiang Zhu
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Positive Electrodes

A flexible asymmetric supercapacitor assembled with novel MnO@C composite nanosheets and Co3O4 nanosheets as negative and positive electrodes achieves an exceptional energy density of 59.6 W h kg−1 at a power density of 1529.8 W kg−1.

Tailoring the morphology followed by the electrochemical performance of NiMn-LDH nanosheet arrays through controlled Co-doping for high-energy and power asymmetric supercapacitors

2017 ◽  
Vol 46 (38) ◽  
pp. 12876-12883 ◽  
Author(s):  
Saurabh Singh ◽  
Nanasaheb M. Shinde ◽  
Qi Xun Xia ◽  
Chandu V. V. M. Gopi ◽  
Je Moon Yun ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Power Density ◽  
High Energy ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Co Doping ◽  
Nanosheet Arrays

A NiCoMn-LDH (10%)//rGO asymmetric supercapacitor device with 574 Wh kg−1 energy density at 749.9 W kg−1 power density and 89.4% retention even after 2500 cycles has been explored.

Construction of mesoporous Cu-doped Co9S8 rectangular nanotube arrays for high energy density all-solid-state asymmetric supercapacitors

2019 ◽  
Vol 7 (10) ◽  
pp. 5333-5343 ◽  
Author(s):  
Wen Lu ◽  
Ze Yuan ◽  
Chunyang Xu ◽  
Jiqiang Ning ◽  
Yijun Zhong ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
High Energy Density ◽  
Nanotube Arrays ◽  
Asymmetric Supercapacitors

A self-templating strategy was used to prepare novel mesoporous Cu-doped Co9S8 rectangular nanotube arrays (Cu-Co9S8 NTAs) as an advanced electrode for all-solid-state asymmetric supercapacitors, which deliver a high energy density of 71.93 W h kg−1 at a power density of 750 W kg−1.

A three-dimensional graphene framework-enabled high-performance stretchable asymmetric supercapacitor

2018 ◽  
Vol 6 (4) ◽  
pp. 1802-1808 ◽  
Author(s):  
Ke Li ◽  
Yanshan Huang ◽  
Jingjing Liu ◽  
Mansoor Sarfraz ◽  
Phillips O. Agboola ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Superior Cycling Stability

Three-dimensional graphene frameworks enable the development of stretchable asymmetric supercapacitors with a record high energy density of 77.8 W h kg−1, and also excellent stretchability and superior cycling stability.

Advanced asymmetric supercapacitors based on CNT@Ni(OH)2 core–shell composites and 3D graphene networks

2015 ◽  
Vol 3 (38) ◽  
pp. 19545-19555 ◽  
Author(s):  
Huan Yi ◽  
Huanwen Wang ◽  
Yuting Jing ◽  
Tianquan Peng ◽  
Yiran Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Nickel Hydroxide ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
High Power Density ◽  
Asymmetric Supercapacitors ◽  
3D Graphene

Asymmetric supercapacitors with CNT@nickel hydroxide nanosheet composites and 3-D graphene networks demonstrated a high energy density (∼44.0 W h kg−1) and high power density (∼16 kW kg−1) in aqueous KOH electrolyte.

Hierarchical three-dimensional mesoporous MnO2 nanostructures for high performance aqueous asymmetric supercapacitors

2016 ◽  
Vol 4 (2) ◽  
pp. 587-595 ◽  
Author(s):  
Sourav Bag ◽  
C. Retna Raj
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors

Nanocrystalline mesoporous α-MnO2 is synthesized for the fabrication of a high energy density aqueous asymmetric supercapacitor device.

A high energy density all-solid-state asymmetric supercapacitor based on MoS2/graphene nanosheets and MnO2/graphene hybrid electrodes

2016 ◽  
Vol 4 (29) ◽  
pp. 11264-11275 ◽  
Author(s):  
Xue Yang ◽  
Hao Niu ◽  
He Jiang ◽  
Qian Wang ◽  
Fengyu Qu
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Power Density ◽  
Graphene Nanosheets ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Positive Electrodes

An asymmetric supercapacitor with high energy density is designed using flower-like MoS2 and MnO2 grown on graphene nanosheets as the negative and positive electrodes, respectively. The device exhibits a high energy density of 78.9 W h kg−1 at a power density of 284.1 W kg−1.

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