In situ synthesis of a highly active Na2Ti3O7 nanosheet on an activated carbon fiber as an anode for high-energy density supercapacitors

2018 ◽  
Vol 6 (33) ◽  
pp. 16186-16195 ◽  
Author(s):  
Xiaoming Qiu ◽  
Xuan Zhang ◽  
Li-Zhen Fan
Keyword(s):  
Carbon Fiber ◽  
Energy Density ◽  
Active Carbon ◽  
Specific Capacity ◽  
High Energy ◽  
Activated Carbon Fiber ◽  
High Energy Density ◽  
Highly Active ◽  
Excellent Electrochemical Performance

A novel Na2Ti3O7/active carbon fiber (NTO/ACF) nanocomposite was designed through a one-dimensional active carbon fiber as a support for Na2Ti3O7 nanosheets, exhibiting excellent electrochemical performance with high specific capacity and superior 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.

Revealing the charge/discharge mechanism of Na–O2 cells by in situ soft X-ray absorption spectroscopy

2018 ◽  
Vol 11 (8) ◽  
pp. 2073-2077 ◽  
Author(s):  
Mohammad N. Banis ◽  
Hossein Yadegari ◽  
Qian Sun ◽  
Tom Regier ◽  
Teak Boyko ◽  
...  
Keyword(s):  
Energy Density ◽  
Absorption Spectroscopy ◽  
High Energy ◽  
High Energy Density ◽  
X Ray ◽  
Discharge Mechanism ◽  
X Ray Absorption ◽  
Charge Discharge

Developing high energy density batteries, such as metal–air systems, requires a good understanding of their underlying electrochemical principles.

In Situ Co–O Bond Reinforcement of the Artificial Cathode Electrolyte Interphase in Highly Delithiated LiCoO2 for High-Energy-Density Applications

2021 ◽  
Author(s):  
Fu-Ming Wang ◽  
Endazenaw Bizuneh Chemere ◽  
Wen-Chen Chien ◽  
Chi-Liang Chen ◽  
Chun-Chuan Hsu ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density

Bifunctional iron disulfide nanoellipsoids for high energy density supercapacitor and electrocatalytic oxygen evolution applications

2019 ◽  
Vol 6 (3) ◽  
pp. 659-670 ◽  
Author(s):  
Zhiqin Sun ◽  
Xue Yang ◽  
Huiming Lin ◽  
Feng Zhang ◽  
Qian Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Oxygen Evolution ◽  
High Energy ◽  
High Energy Density ◽  
Microwave Assisted ◽  
Iron Disulfide ◽  
Excellent Electrochemical Performance ◽  
Microwave Assisted Method

FeS2, prepared using a rapid microwave assisted method, exhibits excellent electrochemical performance for supercapacitor and OER applications.

Rapid in situ growth of β-Ni(OH)2 nanosheet arrays on nickel foam as an integrated electrode for supercapacitors exhibiting high energy density

2020 ◽  
Vol 49 (15) ◽  
pp. 4956-4966 ◽  
Author(s):  
Jingbo Li ◽  
Yu Liu ◽  
Wei Cao ◽  
Nan Chen
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Nickel Foam ◽  
High Energy ◽  
High Energy Density ◽  
In Situ Growth ◽  
Nanosheet Arrays

A rapid in situ method was employed to synthesize the β-Ni(OH)2@NF integrated electrode for a high performance ASC device.

scholarly journals Polymer reinforced carbon fiber interfaces for high energy density structural lithium-ion batteries

2020 ◽  
Vol 4 (6) ◽  
pp. 2661-2668 ◽  
Author(s):  
Kathleen Moyer ◽  
Nora Ait Boucherbil ◽  
Murtaza Zohair ◽  
Janna Eaves-Rathert ◽  
Cary L. Pint
Keyword(s):  
Carbon Fiber ◽  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Interface Engineering ◽  
Structural Battery

Interface engineering enables a practical multifunctional advantage in a structural battery.

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