Bimetal–organic framework assisted polymerization of pyrrole involving air oxidant to prepare composite electrodes for portable energy storage

2017 ◽  
Vol 5 (45) ◽  
pp. 23744-23752 ◽  
Author(s):  
Yang Jiao ◽  
Gang Chen ◽  
Dahong Chen ◽  
Jian Pei ◽  
Yongyuan Hu
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
High Energy Density ◽  
Composite Electrodes ◽  
Organic Framework

Heterocyclic pyrrole molecules arein situpolymerized in the absence of an oxidant between the layers of bimetal–organic frameworks, resulting in high energy density and power density simultaneously.

scholarly journals Novel Lithium-Ion Capacitor Based on a NiO-rGO Composite

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3586
Author(s):  
Qi An ◽  
Xingru Zhao ◽  
Shuangfu Suo ◽  
Yuzhu Bai
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Cycle Life ◽  
High Energy Density ◽  
Lithium Ion Capacitor

Lithium-ion capacitors (LICs) have been widely explored for energy storage. Nevertheless, achieving good energy density, satisfactory power density, and stable cycle life is still challenging. For this study, we fabricated a novel LIC with a NiO-rGO composite as a negative material and commercial activated carbon (AC) as a positive material for energy storage. The NiO-rGO//AC system utilizes NiO nanoparticles uniformly distributed in rGO to achieve a high specific capacity (with a current density of 0.5 A g−1 and a charge capacity of 945.8 mA h g−1) and uses AC to provide a large specific surface area and adjustable pore structure, thereby achieving excellent electrochemical performance. In detail, the NiO-rGO//AC system (with a mass ratio of 1:3) can achieve a high energy density (98.15 W h kg−1), a high power density (10.94 kW kg−1), and a long cycle life (with 72.1% capacity retention after 10,000 cycles). This study outlines a new option for the manufacture of LIC devices that feature both high energy and high power densities.

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.

Intercalation pseudocapacitance in a NASICON-structured Na2CrTi(PO4)3@carbon nanocomposite: towards high-rate and long-lifespan sodium-ion-based energy storage

2019 ◽  
Vol 7 (36) ◽  
pp. 20604-20613 ◽  
Author(s):  
Dongxue Wang ◽  
Zhixuan Wei ◽  
Yunxiang Lin ◽  
Nan Chen ◽  
Yu Gao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Power Density ◽  
Structural Stability ◽  
Active Carbon ◽  
High Energy ◽  
Sodium Ion ◽  
High Rate ◽  
High Energy Density ◽  
Carbon Nanocomposite

Benefiting from the intercalation pseudocapacitance property and structural stability of NASICON-type Na2CrTi(PO4)3@C, the [Active carbon|| Na2CrTi(PO4)3@C] hybrid ion capacitor delivers high energy density as well as superior power density.

In situ synthesized 3D heterometallic metal–organic framework (MOF) as a high-energy-density material shows high heat of detonation, good thermostability and insensitivity

2015 ◽  
Vol 44 (5) ◽  
pp. 2333-2339 ◽  
Author(s):  
Yaya Feng ◽  
Xiangyu Liu ◽  
Linqiang Duan ◽  
Qi Yang ◽  
Qing Wei ◽  
...  
Keyword(s):  
Energy Density ◽  
Metal Organic Framework ◽  
High Heat ◽  
High Energy ◽  
High Energy Density ◽  
Metal Organic ◽  
High Energy Density Material ◽  
Organic Framework

A 3D heterometallic metal–organic framework has been synthesized in situ using Mtta formed from acetonitrile and azide, and structurally characterized.

An excellent full sodium-ion capacitor derived from a single Ti-based metal–organic framework

2018 ◽  
Vol 6 (48) ◽  
pp. 24860-24868 ◽  
Author(s):  
Hao Chen ◽  
Chunlong Dai ◽  
Yanan Li ◽  
Renming Zhan ◽  
Min-Qiang Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Metal Organic Framework ◽  
High Energy ◽  
Sodium Ion ◽  
High Energy Density ◽  
High Power Density ◽  
Metal Organic ◽  
Organic Framework

Hybrid ion capacitors, especially sodium ion capacitors (SICs), have recently attracted enormous attention due to their combined merits of high energy density from the battery-type anode and high power density from the capacitor-type cathode.

scholarly journals Mechanical Energy: Storage of Mechanical Energy Based on Carbon Nanotubes with High Energy Density and Power Density (Adv. Mater. 9/2019)

2019 ◽  
Vol 31 (9) ◽  
pp. 1970064
Author(s):  
Yunxiang Bai ◽  
Boyuan Shen ◽  
Shenli Zhang ◽  
Zhenxing Zhu ◽  
Silei Sun ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Storage ◽  
Energy Density ◽  
Power Density ◽  
Mechanical Energy ◽  
High Energy ◽  
High Energy Density

High performance two-ply carbon nanocomposite yarn supercapacitors enhanced with a platinum filament and in situ polymerized polyaniline nanowires

2016 ◽  
Vol 4 (10) ◽  
pp. 3828-3834 ◽  
Author(s):  
Qiufan Wang ◽  
Yunlong Wu ◽  
Ting Li ◽  
Daohong Zhang ◽  
Menghe Miao ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
High Performance ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Composite Electrodes ◽  
Polyaniline Nanowires ◽  
Carbon Nanocomposite

A two-ply yarn supercapacitor fabricated from Pt/CNT@PANI nanowire composite electrodes exhibits a high specific capacitance of 91.67 mF cm−2and a high energy density of 12.68 μW h cm−2.

In situ grown nickel selenide on graphene nanohybrid electrodes for high energy density asymmetric supercapacitors

Nanoscale ◽  
2018 ◽  
Vol 10 (43) ◽  
pp. 20414-20425 ◽  
Author(s):  
Balakrishnan Kirubasankar ◽  
Vignesh Murugadoss ◽  
Jing Lin ◽  
Tao Ding ◽  
Mengyao Dong ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors

A NiSe–G∥AC asymmetric supercapacitor with both pseudocapacitance and EDLC mechanisms provides an energy density of 50.1 W h kg−1 and a power density of 816 W kg−1.

scholarly journals Na0.76V6O15/Activated Carbon Hybrid Cathode for High-Performance Lithium-Ion Capacitors

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 122
Author(s):  
Renwei Lu ◽  
Xiaolong Ren ◽  
Chong Wang ◽  
Changzhen Zhan ◽  
Ding Nan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Cathode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Artificial Graphite

Lithium-ion hybrid capacitors (LICs) are regarded as one of the most promising next generation energy storage devices. Commercial activated carbon materials with low cost and excellent cycling stability are widely used as cathode materials for LICs, however, their low energy density remains a significant challenge for the practical applications of LICs. Herein, Na0.76V6O15 nanobelts (NaVO) were prepared and combined with commercial activated carbon YP50D to form hybrid cathode materials. Credit to the synergism of its capacitive effect and diffusion-controlled faradaic effect, NaVO/C hybrid cathode displays both superior cyclability and enhanced capacity. LICs were assembled with the as-prepared NaVO/C hybrid cathode and artificial graphite anode which was pre-lithiated. Furthermore, 10-NaVO/C//AG LIC delivers a high energy density of 118.9 Wh kg−1 at a power density of 220.6 W kg−1 and retains 43.7 Wh kg−1 even at a high power density of 21,793.0 W kg−1. The LIC can also maintain long-term cycling stability with capacitance retention of approximately 70% after 5000 cycles at 1 A g−1. Accordingly, hybrid cathodes composed of commercial activated carbon and a small amount of high energy battery-type materials are expected to be a candidate for low-cost advanced LICs with both high energy density and power density.

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