Facile synthesis of manganese carbonate quantum dots/Ni(HCO3)2–MnCO3 composites as advanced cathode materials for high energy density asymmetric supercapacitors

2015 ◽  
Vol 3 (44) ◽  
pp. 22102-22117 ◽  
Author(s):  
Qi Xun Xia ◽  
Kwan San Hui ◽  
Kwun Nam Hui ◽  
Sung Dae Kim ◽  
Jae Hong Lim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Density ◽  
Cathode Materials ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Manganese Carbonate ◽  
Facile Synthesis ◽  
Asymmetric Supercapacitors ◽  
Cathode Electrode

Well dispersed MnCO3 quantum dots (∼1.2 nm) decorated on Ni(HCO3)2–MnCO3 as a cathode electrode for high performance supercapacitors.

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.

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.

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.

Hydrothermal synthesis of CuCo2O4/CuO nanowire arrays and RGO/Fe2O3 composites for high-performance aqueous asymmetric supercapacitors

2016 ◽  
Vol 4 (25) ◽  
pp. 9977-9985 ◽  
Author(s):  
Yidan Wang ◽  
Cheng Shen ◽  
Lengyuan Niu ◽  
Rongzhen Li ◽  
Huatong Guo ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
Nanowire Arrays ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Cuo Nanowire

A CuCo2O4/CuO//RGO/Fe2O3 asymmetric supercapacitor was fabricated and it delivered a high energy density of 33.0 W h kg−1.

Facile synthesis of 3D hierarchical N-doped graphene nanosheet/cobalt encapsulated carbon nanotubes for high energy density asymmetric supercapacitors

2016 ◽  
Vol 4 (24) ◽  
pp. 9555-9565 ◽  
Author(s):  
Jayaraman Balamurugan ◽  
Tran Duy Thanh ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Carbon Nanotubes ◽  
Energy Density ◽  
High Power ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Facile Synthesis ◽  
Asymmetric Supercapacitors ◽  
Graphene Nanosheet ◽  
Doped Graphene

The 3D NG/Co–NCNT based asymmetric supercapacitors provide high energy density (~88.44 W h kg−1), an ultra-high power density (~17 991 W kg−1 at 56.97 W h kg−1), and outstanding stability (~10 000 times).

Olivine LiMnxFe1-xPO4 Cathode Materials for Lithium Ion Batteries: Restricted Factors of Rate Performances

2021 ◽  
Author(s):  
Li Yang ◽  
Wentao Deng ◽  
Wei Xu ◽  
Ye Tian ◽  
Anni Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density

As a promising cathode material for high performance lithium ion batteries, olivine LiMnxFe1-xPO4 (LMFP) combines the high safety of LiFePO4 and the high energy density of LiMnPO4. However, there are...

scholarly journals Preparation of a hybrid Cu2O/CuMoO4 nanosheet electrode for high-performance asymmetric supercapacitors

2016 ◽  
Vol 4 (45) ◽  
pp. 17749-17756 ◽  
Author(s):  
Dongwei Du ◽  
Rong Lan ◽  
Wei Xu ◽  
Richard Beanland ◽  
Huanting Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Good Stability ◽  
Asymmetric Supercapacitors

A hybrid Cu2O/CuMoO4 nanosheet electrode was prepared for asymmetric supercapacitors which delivers high energy density with good stability.

Hierarchical copper cobalt sulfide nanobelt arrays for high performance asymmetric supercapacitors

2021 ◽  
Author(s):  
Leiyun Han ◽  
Xilong Liu ◽  
zheng cui ◽  
Yingjie Hua ◽  
Chongtai Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Electrode Materials ◽  
Solvothermal Method ◽  
Morphology Control ◽  
High Energy ◽  
High Energy Density ◽  
Cobalt Sulfide ◽  
Asymmetric Supercapacitors ◽  
Array Structures

Hierarchical copper cobalt sulfide nanobelt array structures with well-defined morphology control are first reported as high energy density electrode materials for asymmetric supercapacitors using a simple two-step solvothermal method. Through...

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