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

Storage of Mechanical Energy Based on Carbon Nanotubes with High Energy Density and Power Density

2018 ◽  
Vol 31 (9) ◽  
pp. 1800680 ◽  
Author(s):  
Yunxiang Bai ◽  
Boyuan Shen ◽  
Shenli Zhang ◽  
Zhenxing Zhu ◽  
Silei Sun ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Density ◽  
Power Density ◽  
Mechanical Energy ◽  
High Energy ◽  
High Energy Density

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.

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.

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.

Nitrogen-doped carbon nanotubes as an anode for a highly robust potassium-ion hybrid capacitor

2020 ◽  
Vol 5 (12) ◽  
pp. 1586-1595
Author(s):  
Xiuqi Li ◽  
Maoxin Chen ◽  
Lei Wang ◽  
Hanjiao Xu ◽  
Jiang Zhong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Hybrid Capacitors

Novel N-doped carbon nanotubes (NCNTs) were synthesized as an anode for high energy density and power density potassium-ion hybrid capacitors.

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.

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.

scholarly journals Designing high energy density flow batteries by tuning active-material thermodynamics

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5432-5443
Author(s):  
Shyam K. Pahari ◽  
Tugba Ceren Gokoglan ◽  
Benjoe Rey B. Visayas ◽  
Jennifer Woehl ◽  
James A. Golen ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy Density ◽  
Fossil Fuels ◽  
Active Material ◽  
High Energy ◽  
Theoretical Framework ◽  
High Energy Density ◽  
Density Flow ◽  
The Cost

With the cost of renewable energy near parity with fossil fuels, energy storage is paramount. We report a breakthrough on a bioinspired NRFB active-material, with greatly improved solubility, and place it in a predictive theoretical framework.

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