An advanced asymmetric supercapacitor based on a novel ternary graphene/nickel/nickel oxide and porous carbon electrode with superior electrochemical performance

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91389-91397 ◽  
Author(s):  
Miaomiao Liu ◽  
Jie Chang ◽  
Yang Bai ◽  
Jing Sun
Keyword(s):  
Energy Density ◽  
Ternary System ◽  
Electrochemical Performance ◽  
Porous Carbon ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Electrode ◽  
Asymmetric Supercapacitor ◽  
Porous Carbon Electrode ◽  
First Time

A novel ternary system of RGO/Ni/NiO is synthesized for the first time, exhibiting high energy density of 65.3 W h kg−1.

An ultra-high energy density flexible asymmetric supercapacitor based on hierarchical fabric decorated with 2D bimetallic oxide nanosheets and MOF-derived porous carbon polyhedra

2019 ◽  
Vol 7 (3) ◽  
pp. 946-957 ◽  
Author(s):  
Muhammad Sufyan Javed ◽  
Nusrat Shaheen ◽  
Shahid Hussain ◽  
Jinliang Li ◽  
Syed Shoaib Ahmad Shah ◽  
...  
Keyword(s):  
Energy Density ◽  
Porous Carbon ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Ultra High Energy ◽  
Binder Free

A 2D zinc cobaltite nanosheet is rationally designed and directly utilized as a binder-free electrode for SC with extraordinary high energy density.

A high performance all-vanadate-based Li-ion full cell

2021 ◽  
Vol 9 (16) ◽  
pp. 10345-10353
Author(s):  
Jie Xu ◽  
Dongmei Zhang ◽  
Zongping Zhang ◽  
Shibing Ni
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Porous Microspheres ◽  
Full Cell ◽  
Excellent Electrochemical Performance ◽  
Li Ion ◽  
First Time

An all-vanadate-based Li-ion full cell with high energy density and long lifespan is constructed for the first time based on the design of Li3VO4/N doped C porous microspheres with excellent electrochemical performance.

High energy density aqueous zinc–benzoquinone batteries enabled by carbon cloth with multiple anchoring effects

2021 ◽  
Author(s):  
Zhiqiang Luo ◽  
Silin Zheng ◽  
Shuo Zhao ◽  
Xin Jiao ◽  
Zongshuai Gong ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Porous Carbon ◽  
Large Scale ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Anchoring Effects ◽  
High Theoretical Capacity ◽  
Energy Storage Applications

Benzoquinone with high theoretical capacity is anchored on N-plasma engraved porous carbon as a desirable cathode for rechargeable aqueous Zn-ion batteries. Such batteries display tremendous potential in large-scale energy storage applications.

Polyacrylonitrile derived porous carbon for zinc ion hybrid capacitors with high energy density

2021 ◽  
Author(s):  
Xiaowen Fan ◽  
Penggao Liu ◽  
Baixue Ouyang ◽  
Ruizheng Cai ◽  
Xinxin Chen ◽  
...  
Keyword(s):  
Energy Density ◽  
Porous Carbon ◽  
High Energy ◽  
Zinc Ion ◽  
High Energy Density ◽  
Hybrid Capacitors

High Energy Density and Stable Three Dimensionally Structured Se‐loaded Bicontinuous Porous Carbon Battery Electrodes

2021 ◽  
Author(s):  
Junjie Wang ◽  
Subing Qu ◽  
Runyu Zhang ◽  
Ke Yang ◽  
Shiyan Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
Porous Carbon ◽  
High Energy ◽  
High Energy Density

scholarly journals Fabrication of Hierarchical NiMoO4/NiMoO4 Nanoflowers on Highly Conductive Flexible Nickel Foam Substrate as a Capacitive Electrode Material for Supercapacitors with Enhanced Electrochemical Performance

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1143 ◽  
Author(s):  
Anil Yedluri ◽  
Tarugu Anitha ◽  
Hee-Je Kim
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Nickel Foam ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Charge Discharge

Hierarchical NiMoO4/NiMoO4 nanoflowers were fabricated on highly conductive flexible nickel foam (NF) substrates using a facile hydrothermal method to achieve rapid charge-discharge ability, high energy density, long cycling lifespan, and higher flexibility for high-performance supercapacitor electrode materials. The synthesized composite electrode material, NF/NiMoO4/NiMoO4 with a nanoball-like NF/NiMoO4 structure on a NiMoO4 surface over a NF substrate, formed a three-dimensional interconnected porous network for high-performance electrodes. The novel NF/NiMoO4/NiMoO4 nanoflowers not only enhanced the large surface area and increased the electrochemical activity, but also provided an enhanced rapid ion diffusion path and reduced the charge transfer resistance of the entire electrode effectively. The NF/NiMoO4/NiMoO4 composite exhibited significantly improved supercapacitor performance in terms of a sustained cycling life, high specific capacitance, rapid charge-discharge capability, high energy density, and good rate capability. Electrochemical analysis of the NF/NiMoO4/NiMoO4 nanoflowers fabricated on the NF substrate revealed ultra-high electrochemical performance with a high specific capacitance of 2121 F g−1 at 12 mA g−1 in a 3 M KOH electrolyte and 98.7% capacitance retention after 3000 cycles at 14 mA g−1. This performance was superior to the NF/NiMoO4 nanoball electrode (1672 F g−1 at 12 mA g−1 and capacitance retention 93.4% cycles). Most importantly, the SC (NF/NiMoO4/NiMoO4) device displayed a maximum energy density of 47.13 W h kg−1, which was significantly higher than that of NF/NiMoO4 (37.1 W h kg−1). Overall, the NF/NiMoO4/NiMoO4 composite is a suitable material for supercapacitor applications.

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