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.

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.

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.

High-performance quasi-solid-state asymmetric supercapacitors based on BiMn2O5 nanoparticles and redox-additive electrolytes

2019 ◽  
Vol 6 (8) ◽  
pp. 2061-2070 ◽  
Author(s):  
Jai Bhagwan ◽  
Bhimanaboina Ramulu ◽  
Jae Su Yu
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitors ◽  
Storage Performance

The investigation of nanomaterials with improved energy storage performance is essential in the development of high energy density supercapacitors.

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.

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.

Band alignment engineering for high-energy-density solid-state asymmetric supercapacitors with TiO2 insertion at the ZnO/Ni(OH)2 interface

2016 ◽  
Vol 4 (46) ◽  
pp. 17981-17987 ◽  
Author(s):  
Xin Zheng ◽  
Xiaoqin Yan ◽  
Yihui Sun ◽  
Yong Li ◽  
Minghua Li ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Band Structure ◽  
Electronic Band Structure ◽  
High Energy ◽  
Band Alignment ◽  
High Energy Density ◽  
Asymmetric Supercapacitors ◽  
Electronic Band ◽  
Adaptive Interface

An adaptive interface electronic band structure was designed for improving the capacitance by introducing a TiO2 embedding layer at the ZnO/Ni(OH)2 interface.

Urchin-like NiCo2O4 hollow microspheres and FeSe2 micro-snowflakes for flexible solid-state asymmetric supercapacitors

2017 ◽  
Vol 5 (11) ◽  
pp. 5568-5576 ◽  
Author(s):  
Chenchen Ji ◽  
Fuzhu Liu ◽  
Liang Xu ◽  
Shengchun Yang
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Cathode Material ◽  
Hollow Structure ◽  
High Energy ◽  
Hollow Microspheres ◽  
High Energy Density ◽  
Asymmetric Supercapacitors ◽  
Long Term Stability

FSASCs were designed using a NiCo2O4 cathode material with an urchin-like hollow structure and a FeSe2 anode with a hierarchical snowflake structure, which exhibit satisfactory performances with excellent flexibility, high energy density, and long-term stability.

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