scholarly journals Thermally Activated Multilayered Carbon Cloth as Flexible Supercapacitor Electrode Material with Significantly Enhanced Areal Energy Density

2019 ◽  
Vol 6 (6) ◽  
pp. 1768-1775 ◽  
Author(s):  
Qinghua Wang ◽  
Wenhao Ren ◽  
Feng Gao ◽  
Chunyu Qiu ◽  
Qingxiang Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrode Material ◽  
Carbon Cloth ◽  
Supercapacitor Electrode ◽  
Thermally Activated ◽  
Flexible Supercapacitor

The porous ZnCo2O4 nanosheets arrays as a binder-free electrode for high performance flexible supercapacitor materials

2021 ◽  
Author(s):  
Jing Wang ◽  
Chen Wang ◽  
Shen Wang ◽  
Xiang Zhang ◽  
Xiangyang Jin ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Energy Storage Devices ◽  
Supercapacitor Electrode ◽  
Flexible Electrode ◽  
Flexible Supercapacitor ◽  
Binder Free

Abstract In this paper, the porous ZnCo2O4 nanosheets arrays (NAs)/carbon cloth (CC) were prepared for the first time as a binder-free anode by hydrothermal method. The anode electrode material shows multistage pore distribution and thus can provide numerous ways for the transport of ions and electrons. As a supercapacitor electrode, the flexible ZnCo2O4/CC electrode indicates a high specific capacitance (1790 F/g at the current density of 1 A/g), good rate performance, and excellent cycle properties (99.4% capacitance retention after 10000 cycles). Besides, the flexible electrode also displays good mechanical flexibility. The solid-state asymmetric flexible supercapacitor device was assembled taking the ZnCo2O4/CC electrode as the positive electrode and carbon nanotube (CNTs)/CC as the negative electrode. The asymmetric device delivers high energy density 47.1 Wh/Kg (power density 800 W/Kg) and power density 12000 W/Kg (energy density 28.3 Wh/Kg) with the potential window 0 V ~ 1.6 V. These results indicate the ZnCo2O4/CC flexible electrode with high electrochemical performance adjust for environmentally friendly and low-cost energy storage devices in the future.

Nanostructured Polyaniline/Graphene/Fe2O3 Composites Hydrogel as a High-Performance Flexible Supercapacitor Electrode Material

2020 ◽  
Vol 3 (7) ◽  
pp. 6434-6446 ◽  
Author(s):  
Anjli Gupta ◽  
Silki Sardana ◽  
Jasvir Dalal ◽  
Sushma Lather ◽  
Anup S. Maan ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Supercapacitor Electrode ◽  
Flexible Supercapacitor

scholarly journals Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO3/MnO Nano-Arrays by One-Step Electrodeposition

Nanomaterials ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1676 ◽  
Author(s):  
Pianpian Ma ◽  
Na Lei ◽  
Bo Yu ◽  
Yongkun Liu ◽  
Guohua Jiang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Supercapacitor Electrode ◽  
Cooperative Effects ◽  
Flexible Supercapacitor ◽  
Symmetric Supercapacitor ◽  
One Step ◽  
New Type

La-based perovskite-type oxide is a new type of supercapacitor electrode material with great potential. In the present study, LaMnO3/MnO (LMO/MnO) nano-arrays supported by carbon cloth are prepared via a simple one-step electrodeposition as flexible supercapacitor electrodes. The structure, deposit morphology of LMO/MnO, and the corresponding electrochemical properties have been investigated in detail. Carbon cloth-supported LMO/MnO electrode exhibits a specific capacitance of 260 F·g−1 at a current density of 0.5 A·g−1 in 0.5 M Na2SO4 aqueous electrolyte solution. The cooperative effects of LMO and MnO, as well as the uniform nano-array morphology contribute to the good electrochemical performance. In addition, a symmetric supercapacitor with a wide voltage window of 2 V is fabricated, showing a high energy density of 28.15 Wh·kg−1 at a power density of 745 W·kg−1. The specific capacitance drops to 65% retention after the first 500 cycles due to the element leaching effect and partial flaking of LMO/MnO, yet remains stable until 5000 cycles. It is the first time that La-based perovskite has been exploited for flexible supercapacitor applications, and further optimization is expected.

A novel Ni3N/graphene nanocomposite as supercapacitor electrode material with high capacitance and energy density

2015 ◽  
Vol 3 (32) ◽  
pp. 16633-16641 ◽  
Author(s):  
Yu Yu ◽  
Wenyu Gao ◽  
Zongxu Shen ◽  
Qing Zheng ◽  
Hao Wu ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Energy Density ◽  
Electrode Material ◽  
Reduction Reaction ◽  
Supercapacitor Electrode ◽  
High Capacitance ◽  
Oxidation Reduction ◽  
Oxidation Reduction Reaction ◽  
Graphene Nanocomposite

A novel Ni3N/graphene nanocomposite has been synthesized as pseudo supercapacitor electrode material with high capacitance and energy density, due to its unique two-step oxidation/reduction reaction mechanism.

Polyaniline-decorated hyaluronic acid-carbon nanotube hybrid microfiber as a flexible supercapacitor electrode material

Carbon ◽  
2020 ◽  
Vol 159 ◽  
pp. 65-73 ◽  
Author(s):  
Ting Zheng ◽  
Xiaodong Wang ◽  
Yingyi Liu ◽  
Rasoul Bayaniahangar ◽  
Hongbin Li ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Carbon Nanotube ◽  
Electrode Material ◽  
Supercapacitor Electrode ◽  
Flexible Supercapacitor

scholarly journals Graphene/polyaniline@carbon cloth composite as a high-performance flexible supercapacitor electrode prepared by a one-step electrochemical co-deposition method

RSC Advances ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 7688-7693 ◽  
Author(s):  
Lele Wen ◽  
Ke Li ◽  
Jingjing Liu ◽  
Yanshan Huang ◽  
Fanxing Bu ◽  
...  
Keyword(s):  
High Performance ◽  
Carbon Cloth ◽  
Deposition Method ◽  
Supercapacitor Electrode ◽  
Flexible Supercapacitor ◽  
Flexible Supercapacitors ◽  
One Step

A one-step electrochemical co-deposition method was used to prepare a graphene/polyaniline composite on carbon cloth for high-performance flexible supercapacitors.

α MnMoO4/graphene hybrid composite: high energy density supercapacitor electrode material

2014 ◽  
Vol 43 (28) ◽  
pp. 11067-11076 ◽  
Author(s):  
Debasis Ghosh ◽  
Soumen Giri ◽  
Md. Moniruzzaman ◽  
Tanya Basu ◽  
Manas Mandal ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Electrode Material ◽  
Hybrid Composite ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Supercapacitor Electrode

A hydrothermal procedure was employed to synthesize hexahedron shaped MnMoO4 wrapped with graphene exhibiting high energy density and high power density.

A high-performance flexible supercapacitor electrode material based on nano-flowers-like FeS2/NSG hybrid nanocomposites

2018 ◽  
Vol 218 ◽  
pp. 10-13 ◽  
Author(s):  
Ying Wang ◽  
Mingmei Zhang ◽  
Tianjiao Ma ◽  
Denghui Pan ◽  
Yuan Li ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Hybrid Nanocomposites ◽  
Supercapacitor Electrode ◽  
Flexible Supercapacitor
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