Rutile-TiO2 decorated Li4Ti5O12 nanosheet arrays with 3D interconnected architecture as anodes for high performance hybrid supercapacitors

2015 ◽  
Vol 3 (46) ◽  
pp. 23570-23576 ◽  
Author(s):  
Lin Gao ◽  
Dekang Huang ◽  
Yan Shen ◽  
Mingkui Wang
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
Ultrahigh Energy ◽  
Hybrid Supercapacitor ◽  
Rutile Tio2 ◽  
Hybrid Supercapacitors ◽  
Nanosheet Arrays

A hybrid supercapacitor exhibits an ultrahigh energy density of 74.85 W h kg−1 at a power density of 300 W kg−1.

scholarly journals Synthesis of bimetallic nickel cobalt selenide particles for high-performance hybrid supercapacitors

RSC Advances ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1471-1478
Author(s):  
Bei Jiang ◽  
Yang Liu ◽  
Jingchao Zhang ◽  
Yinhuan Wang ◽  
Xinyu Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
Hybrid Supercapacitor ◽  
Hybrid Supercapacitors ◽  
Nickel Cobalt ◽  
Cobalt Selenide

The litchi-like Ni–Co selenide constructed Ni0.95Co2.05Se4//AC hybrid supercapacitor achieves an energy density of 37.22 W h kg−1 and a power density of 800.90 W kg−1. The ASC device can retain 95.21% of the original capacity after 4000 cycles.

Rapid microwave-assisted synthesis of high-rate FeS2 nanoparticles anchored on graphene for hybrid supercapacitors with ultrahigh energy density

2018 ◽  
Vol 6 (30) ◽  
pp. 14956-14966 ◽  
Author(s):  
Zhiqin Sun ◽  
Huiming Lin ◽  
Feng Zhang ◽  
Xue Yang ◽  
He Jiang ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Specific Capacity ◽  
High Rate ◽  
Microwave Assisted Synthesis ◽  
Ultrahigh Energy ◽  
Hybrid Supercapacitor ◽  
High Specific Capacity ◽  
Hybrid Supercapacitors ◽  
Microwave Assisted

Benefitting from the high specific capacity (793 C g−1) of the FeS2/graphene anode, an assembled all-solid-state hybrid supercapacitor device based on the FeS2/graphene anode and a Ni(OH)2@Co9S8 cathode achieves an ultrahigh energy density of up to 95.8 W h kg−1 at a power density of 949 W kg−1.

Rice husk-derived Mn3O4/manganese silicate/C nanostructured composites for high-performance hybrid supercapacitors

2019 ◽  
Vol 6 (10) ◽  
pp. 2788-2800 ◽  
Author(s):  
Hanmei Jiang ◽  
Yifu Zhang ◽  
Chen Wang ◽  
Qiushi Wang ◽  
Changgong Meng ◽  
...  
Keyword(s):  
Energy Density ◽  
Rice Husk ◽  
High Performance ◽  
Maximum Energy ◽  
Rice Husks ◽  
Hybrid Supercapacitor ◽  
Manganese Silicate ◽  
Nanostructured Composites ◽  
Hybrid Supercapacitors

Mn3O4/manganese silicate/C nanostructured composites were synthesized using rice husks and the hybrid supercapacitor realizes a maximum energy density of 13.3 W h kg−1 at 103.9 W kg−1 and super stability.

scholarly journals Blow-spun N-doped carbon fiber based high performance flexible lithium ion capacitors

RSC Advances ◽  
2020 ◽  
Vol 10 (17) ◽  
pp. 9833-9839
Author(s):  
Changzhen Zhan ◽  
Jianan Song ◽  
Xiaolong Ren ◽  
Yang Shen ◽  
Hui Wu ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Energy Density ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Hybrid Supercapacitors

Constructing flexible hybrid supercapacitors is a feasible way to achieve devices with high energy density, high power density and flexibility at the same time.

Three-dimensionally ordered porous TiNb2O7 nanotubes: a superior anode material for next generation hybrid supercapacitors

2015 ◽  
Vol 3 (32) ◽  
pp. 16785-16790 ◽  
Author(s):  
Hongsen Li ◽  
Laifa Shen ◽  
Jie Wang ◽  
Shan Fang ◽  
Yingxia Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Power Density ◽  
Anode Material ◽  
Lithium Ion ◽  
Hybrid Supercapacitor ◽  
Hybrid Supercapacitors ◽  
Cycling Performances ◽  
Ordered Porous ◽  
Generation Hybrid

A novel hybrid supercapacitor is successfully constructed based on the 3D ordered porous TiNb2O7 electrode (anode) and graphene grass electrode (cathode). In combination with the advantages from the lithium ion batteries and supercapacitors, this device shows superior energy density and power density with improved cycling performances.

Hierarchical 3D Zn–Ni–P nanosheet arrays as an advanced electrode for high-performance all-solid-state asymmetric supercapacitors

2018 ◽  
Vol 6 (18) ◽  
pp. 8669-8681 ◽  
Author(s):  
Thanh Tuan Nguyen ◽  
Jayaraman Balamurugan ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
Cycling Stability ◽  
Asymmetric Supercapacitors ◽  
Nanosheet Arrays

A hierarchical 3D Zn–Ni–P nanosheet arrays based all-solid-state ASC exhibits an excellent energy density of ∼90.12 W h kg−1 at 0.61 kW kg−1, power density of ∼8.77 kW kg−1 at 65.83 W h kg−1, and extraordinary cycling stability of ∼93.05% capacitance retention after 20 000 cycles.

scholarly journals Facile one-pot synthesis of NiCo2Se4-rGO on Ni foam for high performance hybrid supercapacitors

RSC Advances ◽  
2019 ◽  
Vol 9 (65) ◽  
pp. 37939-37946 ◽  
Author(s):  
Bahareh Golrokh Amin ◽  
Jahangir Masud ◽  
Manashi Nath
Keyword(s):  
Power Density ◽  
High Performance ◽  
High Energy ◽  
Hybrid Supercapacitor ◽  
Ni Foam ◽  
One Pot ◽  
Hybrid Supercapacitors ◽  
One Pot Synthesis ◽  
Energy And Power Density

A hybrid supercapacitor comprising a NiCo2Se4-rGO composite has been fabricated on Ni foam and shows high energy and power density and superior flexibility.

scholarly journals Fabrication of Bimetallic Oxides (MCo2O4: M=Cu, Mn) on Ordered Microchannel Electro-Conductive Plate for High-Performance Hybrid Supercapacitors

2021 ◽  
Vol 13 (17) ◽  
pp. 9896
Author(s):  
Mai Li ◽  
Zheyi Meng ◽  
Ruichao Feng ◽  
Kailan Zhu ◽  
Fengfeng Zhao ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
Transition Metal Oxides ◽  
High Performance ◽  
Negative Electrode ◽  
Good Prospect ◽  
Cycle Stability ◽  
Conductive Plate ◽  
Hybrid Supercapacitors ◽  
Ordered Macroporous

AB2O4-type binary-transition metal oxides (BTMOs) of CuCo2O4 and MnCo2O4 were successfully prepared on ordered macroporous electrode plates (OMEP) for supercapacitors. Under the current density of 5 mA cm−2, the CuCo2O4/OMEP electrode achieved a specific capacitance of 1199 F g−1. The asymmetric supercapacitor device prepared using CuCo2O4/OMEP as the positive electrode and carbon-based materials as the negative electrode (CuCo2O4/OMEP//AC) achieved the power density of 14.58 kW kg−1 under the energy density of 11.7 Wh kg−1. After 10,000 GCD cycles, the loss capacitance of CuCo2O4/OMEP//AC is only 7.5% (the retention is 92.5%). The MnCo2O4/OMEP electrode shows the specific and area capacitance of 843 F g−1 and 5.39 F cm−2 at 5 mA cm−2. The MnCo2O4/OMEP-based supercapacitor device (MnCo2O4/OMEP//AC) has a power density of 8.33 kW kg−1 under the energy density of 11.6 Wh kg−1 and the cycle stability was 90.2% after 10,000 cycles. The excellent power density and cycle stability prove that the prepared hybrid supercapacitor fabricated under silicon process has a good prospect as the power buffer device for solar cells.

scholarly journals Engineering three-dimensional hybrid supercapacitors and microsupercapacitors for high-performance integrated energy storage

2015 ◽  
Vol 112 (14) ◽  
pp. 4233-4238 ◽  
Author(s):  
Maher F. El-Kady ◽  
Melanie Ihns ◽  
Mengping Li ◽  
Jee Youn Hwang ◽  
Mir F. Mousavi ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Consumer Electronics ◽  
Hybrid Supercapacitor ◽  
Active Materials ◽  
Space Applications ◽  
Hybrid Supercapacitors ◽  
And Storage

Supercapacitors now play an important role in the progress of hybrid and electric vehicles, consumer electronics, and military and space applications. There is a growing demand in developing hybrid supercapacitor systems to overcome the energy density limitations of the current generation of carbon-based supercapacitors. Here, we demonstrate 3D high-performance hybrid supercapacitors and microsupercapacitors based on graphene and MnO2 by rationally designing the electrode microstructure and combining active materials with electrolytes that operate at high voltages. This results in hybrid electrodes with ultrahigh volumetric capacitance of over 1,100 F/cm3. This corresponds to a specific capacitance of the constituent MnO2 of 1,145 F/g, which is close to the theoretical value of 1,380 F/g. The energy density of the full device varies between 22 and 42 Wh/l depending on the device configuration, which is superior to those of commercially available double-layer supercapacitors, pseudocapacitors, lithium-ion capacitors, and hybrid supercapacitors tested under the same conditions and is comparable to that of lead acid batteries. These hybrid supercapacitors use aqueous electrolytes and are assembled in air without the need for expensive “dry rooms” required for building today’s supercapacitors. Furthermore, we demonstrate a simple technique for the fabrication of supercapacitor arrays for high-voltage applications. These arrays can be integrated with solar cells for efficient energy harvesting and storage systems.

Flexible Mn-decorated NiCo2S4 core–shell nanowire arrays for a high performance hybrid supercapacitor electrode with a long cycle life

CrystEngComm ◽  
2018 ◽  
Vol 20 (33) ◽  
pp. 4735-4744 ◽  
Author(s):  
Chang Liu ◽  
Xiang Wu ◽  
Hui Xia
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Hybrid Supercapacitor ◽  
Supercapacitor Electrode ◽  
Long Cycle Life ◽  
Asymmetric Hybrid ◽  
Shell Nanowires

In this work, an asymmetric hybrid supercapacitor assembled by utilizing 0.5Mn–NiCo2S4 core–shell nanowires as the positive electrode achieves a relatively high volumetric energy density of 8.80 mW h cm−3 at a volumetric power density of 220.103 mW cm−3.

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