Microfluidic-architected core–shell flower-like δ-MnO2@graphene fibers for high energy-storage wearable supercapacitors

2021 ◽  
Vol 372 ◽  
pp. 137827
Author(s):  
Yunming Jia ◽  
Xiaying Jiang ◽  
Arsalan Ahmed ◽  
Lan Zhou ◽  
Qinguo Fan ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Core Shell ◽  
High Energy Storage ◽  
Graphene Fibers

Core–shell structured poly(vinylidene fluoride)-grafted-BaTiO3 nanocomposites prepared via reversible addition–fragmentation chain transfer (RAFT) polymerization of VDF for high energy storage capacitors

2019 ◽  
Vol 10 (7) ◽  
pp. 891-904 ◽  
Author(s):  
Fatima Ezzahra Bouharras ◽  
Mustapha Raihane ◽  
Gilles Silly ◽  
Cedric Totee ◽  
Bruno Ameduri
Keyword(s):  
Energy Storage ◽  
Chain Transfer ◽  
Vinylidene Fluoride ◽  
Raft Polymerization ◽  
High Energy ◽  
Core Shell ◽  
Reversible Addition ◽  
Poly Vinylidene Fluoride ◽  
High Energy Storage

Core–shell structured PVDF-g-BaTiO3 nanocomposites were prepared by surface-initiated RAFT of VDF from BaTiO3 nanoparticles.

scholarly journals High energy storage performance for dielectric film capacitors by designing 1D SrTiO3@SiO2 nanofillers

2018 ◽  
Vol 08 (06) ◽  
pp. 1850039 ◽  
Author(s):  
Bing Xie ◽  
Ling Zhang ◽  
Mohsin Ali Marwat ◽  
Yiwei Zhu ◽  
Weigang Ma ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electric Field ◽  
Dielectric Film ◽  
High Energy ◽  
Core Shell ◽  
Insulating Layer ◽  
Storage Performance ◽  
Discharged Energy Density ◽  
High Energy Storage

The development of advanced dielectric film materials with high energy storage performance is of critical significance for pulsed power capacitor applications. Nevertheless, the low discharged energy density ([Formula: see text]) of current dielectric film material restricts their further application. In this work, core-shell structured SrTiO3@SiO2 nanowires (ST@SiO2 NWs) fillers are fabricated based on interface engineering for high [Formula: see text]. The optimized SiO2 insulating layer could effectively confine the mobility of space charge carriers in the interfacial zone between ST NWs and thick SiO2 insulating layer, thus reducing the interfacial polarization between the interface of nanofillers/polymer, which could be used to optimize the electric field strength and electric displacement of the corresponding nanocomposite. As a result, this nanocomposite film simultaneously exhibits enhanced maximum applied electric field ([Formula: see text]) and ([Formula: see text]-[Formula: see text]) values, thus releasing an ultrahigh discharged energy density of 14.7[Formula: see text]J/cm3 at 390[Formula: see text]MV/m, which is 99% higher than that of the conventional ST/P(VDF-CTFE) (without SiO2 coating) nanocomposite, and it is almost 2.5 times that of pure P(VDF-CTFE). This work demonstrates the superiority of the core-shell structured paraelectric nanowire in enhancing the energy storage performance of dielectric film capacitors, which is expected to guide the design of advanced energy-storage nanocomposites.

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