Electro-active phase formation in PVDF–BiVO4 flexible nanocomposite films for high energy density storage application

RSC Advances ◽  
2014 ◽  
Vol 4 (89) ◽  
pp. 48220-48227 ◽  
Author(s):  
Subrata Sarkar ◽  
Samiran Garain ◽  
Dipankar Mandal ◽  
K. K. Chattopadhyay
Keyword(s):  
Dielectric Properties ◽  
Energy Density ◽  
Phase Formation ◽  
Nanocomposite Film ◽  
Active Phase ◽  
Electrical Energy ◽  
High Energy ◽  
High Energy Density ◽  
Nanocomposite Films ◽  
Energy Harvesters

A significant improvement of dielectric properties and toughness with electrical energy density up to 11 J cm−3 is observed in flexible PVDF–BiVO4 nanocomposite film. It underlines to use as flexible high energy density capacitors and piezoelectric based energy harvesters.

Self-charging photo-power cell based on a novel polymer nanocomposite film with high energy density and durability

2019 ◽  
Vol 51 (11) ◽  
pp. 1197-1209
Author(s):  
Swagata Roy ◽  
Pradip Thakur ◽  
Nur Amin Hoque ◽  
Arpan Kool ◽  
Farha Khatun ◽  
...  
Keyword(s):  
Energy Density ◽  
Nanocomposite Film ◽  
Polymer Nanocomposite ◽  
High Energy ◽  
High Energy Density ◽  
Power Cell

scholarly journals Strategies to Improve the Energy Storage Properties of Perovskite Lead-Free Relaxor Ferroelectrics: A Review

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5742
Author(s):  
Vignaswaran Veerapandiyan ◽  
Federica Benes ◽  
Theresa Gindel ◽  
Marco Deluca
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Electrical Energy ◽  
High Energy ◽  
Relaxor Ferroelectrics ◽  
High Energy Density ◽  
Lead Free ◽  
Chemical Additives ◽  
Energy Storage Properties ◽  
Novel Processing

Electrical energy storage systems (EESSs) with high energy density and power density are essential for the effective miniaturization of future electronic devices. Among different EESSs available in the market, dielectric capacitors relying on swift electronic and ionic polarization-based mechanisms to store and deliver energy already demonstrate high power densities. However, different intrinsic and extrinsic contributions to energy dissipations prevent ceramic-based dielectric capacitors from reaching high recoverable energy density levels. Interestingly, relaxor ferroelectric-based dielectric capacitors, because of their low remnant polarization, show relatively high energy density and thus display great potential for applications requiring high energy density properties. In this study, some of the main strategies to improve the energy density properties of perovskite lead-free relaxor systems are reviewed, including (i) chemical modification at different crystallographic sites, (ii) chemical additives that do not target lattice sites, and (iii) novel processing approaches dedicated to bulk ceramics, thick and thin films, respectively. Recent advancements are summarized concerning the search for relaxor materials with superior energy density properties and the appropriate choice of both composition and processing routes to match various applications’ needs. Finally, future trends in computationally-aided materials design are presented.

Dielectric characteristics of Poly(chloro-p-Xylene) thin films for high energy density pulsed power capacitors

2006 ◽  
Vol 949 ◽  
Author(s):  
Pratyush Tewari ◽  
Eugene Furman ◽  
Michael T. Lanagan
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Energy Density ◽  
Biomedical Applications ◽  
High Energy ◽  
Pulsed Power ◽  
High Energy Density ◽  
Parylene C ◽  
Dielectric Characteristics ◽  
Laminar Composites

ABSTRACTPoly(chloro-p- Xylene) or Parylene –C thin films are particularly attractive for dielectric as well as biomedical applications. In the current work the dielectric properties of Parylene-C thin films are investigated to form laminar composites with oxide thin films for high energy density pulsed power capacitors. Parylene-C thin films were synthesized by pyrolytic vapor decomposition polymerization of dichloro-di(p-Xylene) monomer. Annealing of films at 225°C has shown to enhance crystallinity of film. Conduction in Parylene-C thin films appears to be bulk-controlled with the hopping charges contributing to leakage current. The barrier height of 0.89eV and hopping distance of 2 - 2.5nm are physically plausible and similar to previously reported values in polymer literature.

Toward dendrite-free alkaline zinc-based rechargeable batteries: A minireview

2019 ◽  
Vol 12 (05) ◽  
pp. 1930004 ◽  
Author(s):  
Xin Cao ◽  
Huan Xia ◽  
Xiangyu Zhao
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Dendritic Growth ◽  
Low Cost ◽  
Electrical Energy ◽  
High Energy ◽  
Rechargeable Batteries ◽  
High Energy Density ◽  
Electrode Design ◽  
Electrical Energy Storage

Alkaline zinc-based rechargeable batteries (AZRBs) are competitive candidates for future electrical energy storage because of their low-cost, eco-friendliness and high energy density. However, plagued by dendrites, the AZRBs suffer from drastic decay in electrochemical properties and safety. This review elucidates fundamentals of zinc dendritic formation and summarizes the strategies, including electrode design and modification, electrolyte optimization and separator improvement, for suppressing zinc dendritic growth.

Benzoxazole-polymer@CCTO hybrid nanoparticles prepared via RAFT polymerization: toward poly(p-phenylene benzobisoxazole) nanocomposites with enhanced high-temperature dielectric properties

2021 ◽  
Author(s):  
Junhao Jiang ◽  
Jinpeng Li ◽  
Jun Qian ◽  
Xiaoyun Liu ◽  
Peiyuan Zuo ◽  
...  
Keyword(s):  
High Temperature ◽  
Dielectric Properties ◽  
Energy Density ◽  
Polymer Nanocomposites ◽  
Raft Polymerization ◽  
Dielectric Materials ◽  
High Energy ◽  
High Energy Density ◽  
Hybrid Nanoparticles

Polymer nanocomposites with high energy density have become a research hotspot in the field of dielectric materials. However, the huge compatibility contrast between nanofillers and polymers always hinders the further...

Zirconia doped barium titanate induced electroactive β polymorph in PVDF-HFP: high energy density and dielectric properties

2014 ◽  
Vol 1 (4) ◽  
pp. 045301 ◽  
Author(s):  
Maya Sharma ◽  
S Ranganatha ◽  
Ajay Kumar Kalyani ◽  
Rajeev Ranjan ◽  
Giridhar Madras ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Energy Density ◽  
Barium Titanate ◽  
High Energy ◽  
High Energy Density ◽  
Doped Barium Titanate
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