Tuning the morphology and size of NiMoO4 nanosheets anchored on NiCo2O4 nanowires: the optimized core-shell hybrid for high energy density asymmetric supercapacitors

2020 ◽  
pp. 148458
Author(s):  
Heming Zhao ◽  
Zepeng Zhang ◽  
Chungui Zhou ◽  
Huifang Zhang
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
Asymmetric Supercapacitors

Advanced asymmetric supercapacitors based on CNT@Ni(OH)2 core–shell composites and 3D graphene networks

2015 ◽  
Vol 3 (38) ◽  
pp. 19545-19555 ◽  
Author(s):  
Huan Yi ◽  
Huanwen Wang ◽  
Yuting Jing ◽  
Tianquan Peng ◽  
Yiran Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Nickel Hydroxide ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
High Power Density ◽  
Asymmetric Supercapacitors ◽  
3D Graphene

Asymmetric supercapacitors with CNT@nickel hydroxide nanosheet composites and 3-D graphene networks demonstrated a high energy density (∼44.0 W h kg−1) and high power density (∼16 kW kg−1) in aqueous KOH electrolyte.

Growth of CuCo2O4@MnMoO4 core/shell nanosheet arrays for high energy density asymmetric supercapacitors

2020 ◽  
Vol 341 ◽  
pp. 135893 ◽  
Author(s):  
Sanming Chen ◽  
Shiqiang Cui ◽  
Sundaram Chandrasekaran ◽  
Chong Ke ◽  
Zhongfa Li ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
Asymmetric Supercapacitors ◽  
Nanosheet Arrays

A hierarchical glucose-intercalated NiMn-G-LDH@NiCo2S4 core–shell structure as a binder-free electrode for flexible all-solid-state asymmetric supercapacitors

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1852-1863 ◽  
Author(s):  
Shixia Chen ◽  
Chengxi Lu ◽  
Lu Liu ◽  
Mai Xu ◽  
Jun Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Shell Structure ◽  
High Energy ◽  
High Energy Density ◽  
Core Shell ◽  
Wearable Electronics ◽  
Asymmetric Supercapacitors ◽  
Binder Free ◽  
Core Shell Structure

Flexible, lightweight, and high-energy-density asymmetric supercapacitors (ASCs) are highly attractive for portable and wearable electronics.

Enhanced dielectric properties and thermostability in polyimide composites with core-shell structured polyimide@BaTiO3 nanoparticles

2021 ◽  
pp. 095400832199352
Author(s):  
Wei Deng ◽  
Guanguan Ren ◽  
Wenqi Wang ◽  
Weiwei Cui ◽  
Wenjun Luo
Keyword(s):  
Dielectric Constant ◽  
Dielectric Loss ◽  
Energy Density ◽  
Breakdown Strength ◽  
In Situ Polymerization ◽  
Dielectric Materials ◽  
High Energy ◽  
Amic Acid ◽  
High Energy Density ◽  
Core Shell

Polymer composites with high dielectric constant and thermal stability have shown great potential applications in the fields relating to the energy storage. Herein, core-shell structured polyimide@BaTiO3 (PI@BT) nanoparticles were fabricated via in-situ polymerization of poly(amic acid) (PAA) and the following thermal imidization, then utilized as fillers to prepare PI composites. Increased dielectric constant with suppressed dielectric loss, and enhanced energy density as well as heat resistance were simultaneously realized due to the presence of PI shell between BT nanoparticles and PI matrix. The dielectric constant of PI@BT/PI composites with 55 wt% fillers increased to 15.0 at 100 Hz, while the dielectric loss kept at low value of 0.0034, companied by a high energy density of 1.32 J·cm−3, which was 2.09 times higher than the pristine PI. Moreover, the temperature at 10 wt% weight loss reached 619°C, demonstrating the excellent thermostability of PI@BT/PI composites. In addition, PI@BT/PI composites exhibited improved breakdown strength and toughness as compared with the BT/PI composites due to the well dispersion of PI@BT nanofillers and the improved interfacial interactions between nanofillers and polymer matrix. These results provide useful information for the structural design of high-temperature dielectric materials.

Sign in / Sign up

Export Citation Format

Share Document