2021
DOI: 10.3390/app11178063
|View full text |Cite
|
Sign up to set email alerts
|

Prospects for the Development of High Energy Density Dielectric Capacitors

Abstract: In this paper, the design of high energy density dielectric capacitors for energy storage in vehicle, industrial, and electric utility applications have been considered in detail. The performance of these devices depends primarily on the dielectric constant and breakdown strength characteristics of the dielectric material used. A review of the literature on composite polymer materials to assess their present dielectric constants and the various approaches being pursued to increase energy density found that the… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
5

Citation Types

0
6
0

Year Published

2022
2022
2024
2024

Publication Types

Select...
7
1
1

Relationship

0
9

Authors

Journals

citations
Cited by 18 publications
(6 citation statements)
references
References 58 publications
0
6
0
Order By: Relevance
“…Dielectric ceramic capacitors are widely applied to pulse systems due to their fast charging–discharging speed and wider temperature range compared with supercapacitors and batteries. , Dielectric capacitors with large energy density will help to meet the development requirements of lightweight, miniaturization, and integration of pulse power devices. Usually, the energy storage properties (ESPs) of dielectric ceramics can be calculated by formulae – W normalt normalo normalt normala normall = 0 P m E .25em normald P W normalr normale normalc = P r P m E .25em normald P η = W normalr normale normalc W normalt normalo normalt normala normall × 100 % in which P m is the maximum polarization, E is the applied electric field, W total is the total energy storage density, P r is the remanent polarization, W rec is the effective energy storage density, and η is the efficiency. According to formulae –, a high breakdown field ( E b ) and high polarization difference (Δ P , Δ P = P m – P r ) are beneficial to obtain large W rec and high η. In relaxor ferroelectrics (RFEs), there are highly dynamic and small-size polar nanoregions (PNRs), resulting in an enhanced ferroelectric relaxor and reduced P r , which can obtain larger W rec and η under electric field loading and removing conditions.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Dielectric ceramic capacitors are widely applied to pulse systems due to their fast charging–discharging speed and wider temperature range compared with supercapacitors and batteries. , Dielectric capacitors with large energy density will help to meet the development requirements of lightweight, miniaturization, and integration of pulse power devices. Usually, the energy storage properties (ESPs) of dielectric ceramics can be calculated by formulae – W normalt normalo normalt normala normall = 0 P m E .25em normald P W normalr normale normalc = P r P m E .25em normald P η = W normalr normale normalc W normalt normalo normalt normala normall × 100 % in which P m is the maximum polarization, E is the applied electric field, W total is the total energy storage density, P r is the remanent polarization, W rec is the effective energy storage density, and η is the efficiency. According to formulae –, a high breakdown field ( E b ) and high polarization difference (Δ P , Δ P = P m – P r ) are beneficial to obtain large W rec and high η. In relaxor ferroelectrics (RFEs), there are highly dynamic and small-size polar nanoregions (PNRs), resulting in an enhanced ferroelectric relaxor and reduced P r , which can obtain larger W rec and η under electric field loading and removing conditions.…”
Section: Introductionmentioning
confidence: 99%
“…Dielectric ceramic capacitors are widely applied to pulse systems due to their fast charging−discharging speed and wider temperature range compared with supercapacitors and batteries. 1,2 Dielectric capacitors with large energy density will help to meet the development requirements of lightweight, miniaturization, and integration of pulse power devices. 3−7 Usually, the energy storage properties (ESPs) of dielectric ceramics can be calculated by formulae 1−3 in which P m is the maximum polarization, E is the applied electric field, W total is the total energy storage density, P r is the remanent polarization, W rec is the effective energy storage density, and η is the efficiency.…”
Section: Introductionmentioning
confidence: 99%
“…However, one major drawback of dielectric capacitors is their low discharge energy density, which hinders their expansion in application fields. [5][6][7] It is well known that the energy density of a dielectric is closely correlated with the breakdown electric field and polarization intensity. 2,8 In recent years, some typical feasible strategies have been adopted to improve the breakdown strength and polarization of dielectrics, including microstructural design and modification of polymer molecular chains, [9][10][11][12][13][14] polymer blends, [15][16][17][18] and the construction of organic/inorganic composites.…”
Section: Introductionmentioning
confidence: 99%
“…9,10 They are more advantageous in a wide range of applications such as wearable devices, portable devices and implantable devices [10][11][12] because they can charge/discharge at much quicker power rates, and have a longer lifespan with shorter load cycles than customary batteries. 13 Regarding materials, latest experimental and theoretical studies on metallic nanowires, 14 carbon nanotubes and graphene 15 have been emphasizing on determining the dielectric nature of such compositional structures, to employ in energy storage devices as thin lms. [16][17][18][19][20] Out of these materials, graphene akes have been attracting researchers signicant interest because of their distinctive features, such as high electrical and thermal conductivities, mechanical strength, and large surface area in various applications, including electronics, energy storage, and biocompatible implantation.…”
Section: Introductionmentioning
confidence: 99%