IET Nanodielectrics最新文献_第7页

Energy storage properties of P(VDF-TrFE-CTFE)-based composite dielectrics with uniform and gradient-doped boron nitride nanosheets 均匀和梯度掺杂氮化硼纳米片的P（VDF‐TrFE‐CTFE）基复合电介质的储能性能

IF 2.7

IET Nanodielectrics Pub Date : 2021-05-25 DOI: 10.1049/nde2.12024

Yanan Shang, Yu Feng, Changming Li, Changhai Zhang, Tiandong Zhang, Yongquan Zhang, Yue Zhang, Chunhui Song, Qingguo Chi

{"title":"Energy storage properties of P(VDF-TrFE-CTFE)-based composite dielectrics with uniform and gradient-doped boron nitride nanosheets","authors":"Yanan Shang, Yu Feng, Changming Li, Changhai Zhang, Tiandong Zhang, Yongquan Zhang, Yue Zhang, Chunhui Song, Qingguo Chi","doi":"10.1049/nde2.12024","DOIUrl":"10.1049/nde2.12024","url":null,"abstract":"Dielectric capacitors play an important role in advanced electronic and power systems such as portable electronic devices, hybrid electric vehicles and electronic weapon systems, and the improvement of energy storage density will have a positive effect on reducing the volume and weight of equipment. Here, a series of single-layer dielectrics with boron nitride nanosheets (BNNSs) uniformly dispersed and multilayer dielectrics with BNNSs showing a positive gradient distribution (PGD) and inverse gradient distribution (IGD) in the poly(vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) (P[VDF-TrFE-CTFE]) matrix were prepared by high-speed electrospinning and hot press technology. It is found that the best performance is observed inthe lowest interlayer gradient component in both PGD and IGD composite dielectrics. However, the performance of PGD is better than that of IGD, and the 3-5-3 multilayer dielectric in the positive gradient structure has the best electrical performance. Its maximum energy storage density of the 3-5-3 composite dielectrics is 12.93 J/cm3 at the applied electric field of 380 kV/mm. The above research results show that the gradient structure design plays an important role in optimising the breakdown strength and energy storage characteristics of composite dielectrics.","PeriodicalId":36855,"journal":{"name":"IET Nanodielectrics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2021-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/nde2.12024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47775304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

A transparent polyvinylidene fluoride–hexafluoropropylene composite film with enhanced energy conversion and energy preservation performance 一种具有增强能量转换和节能性能的透明聚偏氟乙烯-六氟丙烯复合薄膜

IF 2.7

IET Nanodielectrics Pub Date : 2021-05-24 DOI: 10.1049/nde2.12023

Xin Wang, Wenjiang Wang, Wangshu Tong, Yihe Zhang, Zhihao Wang, Yuan Ma, Qi An

{"title":"A transparent polyvinylidene fluoride–hexafluoropropylene composite film with enhanced energy conversion and energy preservation performance","authors":"Xin Wang, Wenjiang Wang, Wangshu Tong, Yihe Zhang, Zhihao Wang, Yuan Ma, Qi An","doi":"10.1049/nde2.12023","DOIUrl":"10.1049/nde2.12023","url":null,"abstract":"Integrated energy-generating and storage films are able to convert mechanical force into stored electrical energy, with the potential for use in self-powered wearable electronics and flexible energy supplies. The development of a transparent metal salt/polyvinylidene fluoride–hexafluoropropylene composite film is reported that possesses excellent piezoelectric and dielectric properties and has the potential to be employed as an energy-generating and preserving integrated film. The effects of the type of the metal salt and its content on the dielectric properties, d33 value, open circuit voltage, and holding time of the composite films were investigated. Owing to the presence of pure water, the β-phase composition and polarization of the film are increased, leading to improved energy conversion properties. Most important, the prepared film exhibits excellent light transmittance. This film, which possesses both good electrical and transparent properties, has the potential for use as a flexible energy supplier, particularly for photovoltaic devices.","PeriodicalId":36855,"journal":{"name":"IET Nanodielectrics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2021-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/nde2.12023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"111278254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Greatly enhanced breakdown strength and energy density in ultraviolet-irradiated polypropylene 大大提高了紫外线照射聚丙烯的击穿强度和能量密度

IF 2.7

IET Nanodielectrics Pub Date : 2021-05-12 DOI: 10.1049/nde2.12022

Jiayu Chen, Bao-Wen Li, Yi Sun, Pengxiang Zhang, Zhonghui Shen, Xin Zhang, Ce-Wen Nan, Shujun Zhang

引用次数: 10

Understanding the enhanced electrorheological effect of reduced graphene oxide-supported polyaniline dielectric nanoplates by a comparative study with graphene oxide as the support core 通过以氧化石墨烯为支撑芯的对比研究，了解还原氧化石墨烯负载聚苯胺介质纳米板增强的电流变效应

IF 2.7

IET Nanodielectrics Pub Date : 2021-04-21 DOI: 10.1049/nde2.12021

Jinhua Yuan, Yudong Wang, Liqin Xiang, Xiaopeng Zhao, Jianbo Yin

{"title":"Understanding the enhanced electrorheological effect of reduced graphene oxide-supported polyaniline dielectric nanoplates by a comparative study with graphene oxide as the support core","authors":"Jinhua Yuan, Yudong Wang, Liqin Xiang, Xiaopeng Zhao, Jianbo Yin","doi":"10.1049/nde2.12021","DOIUrl":"10.1049/nde2.12021","url":null,"abstract":"Graphene has attracted scientific interest as a substrate or additive for developing high-performance stimuli-responsive materials. Research on graphene-based polymer dielectric composites has shown an enhanced electroresponsive electrorheological (ER) effect. However, the mechanism behind the enhanced electroresponse is still incompletely understood. Here, an investigation was performed into dielectric polarization and the ER effect of reduced graphene oxide-supported polyaniline nanoplates by comparing them with pure granular polyaniline and graphene oxide-supported polyaniline nanoplates based on dielectric spectroscopy and rheologic analysis. We discovered that both anisotropic morphology and electrical properties have dominant roles in the enhanced ER effect of reduced graphene oxide-supported polyaniline nanoplates, whereas only anisotropic morphology has a dominant role in the enhanced ER effect of graphene oxide-supported polyaniline nanoplates. The analysis also showed that reduced graphene oxide-supported polyaniline nanoplates have a good ER response to both DC and AC electric field actions in the wide shear rate region. This is highly desirable for practical engineering applications. Therefore, the analysis reveals the reason for the enhanced ER effect of reduced graphene oxide-supported polyaniline nanoplates and also may provide a guide for designing high-performance ER materials for practical engineering applications by combining the advantages of conducting a reduced graphene oxide core and ER active shell.","PeriodicalId":36855,"journal":{"name":"IET Nanodielectrics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2021-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/nde2.12021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49666416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Investigation on the partial discharge characteristics of eco-friendly nanofluid insulation of corn oil nanofluid 玉米油纳米流体环保型纳米流体绝缘的局部放电特性研究

IF 2.7

IET Nanodielectrics Pub Date : 2021-04-16 DOI: 10.1049/nde2.12020

Shantha Kumar M, Kasi Viswanathan P, Shree Kumar H

{"title":"Investigation on the partial discharge characteristics of eco-friendly nanofluid insulation of corn oil nanofluid","authors":"Shantha Kumar M, Kasi Viswanathan P, Shree Kumar H","doi":"10.1049/nde2.12020","DOIUrl":"10.1049/nde2.12020","url":null,"abstract":"The suitability of corn oil nanofluid as an insulation material is studied herein by analysing the partial discharge characteristics. Experiments are conducted on nano-silica modified corn oil at 0.01, 0.05, and 0.1 wt.% mass fractions. Electrode configurations are used to generate partial discharge (PD) sources such as corona discharge, internal discharge, and surface discharge. Partial discharge inception voltage dependency on electrode geometry is studied. Phase-resolved partial discharge analysis (PRPD) at various test conditions is done to understand the influence of live element geometry that causes PD in real-time operations, Weibull statistical analysis of PD parameters like scale parameter, shape parameter, skewness, and repetition rate is evaluated to understand the influence of nanofiller mass fraction in corn oil. The results illustrate that the addition of silica nanoparticles to corn oil has a significant influence on PD characteristics. The PRPD pattern analysis reveals information about the PD dependency on electrode configuration of the test condition. The addition of nanofillers in optimal concentrations without agglomeration can influence the PD characteristics to a certain degree. The test results may be inferred to suggest corn oil-based silica nanofluids as an alternative biodegradable liquid insulation.","PeriodicalId":36855,"journal":{"name":"IET Nanodielectrics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2021-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/nde2.12020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47991596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Electrical discharge resistance of polymeric nanocomposites 高分子纳米复合材料的放电电阻

IF 2.7

IET Nanodielectrics Pub Date : 2021-04-08 DOI: 10.1049/nde2.12019

Srijib Banerjee, Shelly Saini, Shakthi Prasad D

{"title":"Electrical discharge resistance of polymeric nanocomposites","authors":"Srijib Banerjee, Shelly Saini, Shakthi Prasad D","doi":"10.1049/nde2.12019","DOIUrl":"https://doi.org/10.1049/nde2.12019","url":null,"abstract":"The trend of choosing insulating materials has changed in the past few decades, and a considerable shift has occurred from conventional ceramic to non-ceramic insulating materials. The addition of inorganic fillers has greatly improved the thermal conductivity, discharge resistance, hydrophobicity recovery, and vandalism-resistance properties of polymeric insulating materials. Since the beginning of the present century, the field of nanomaterial research has gained much attention. Several studies have been conducted to investigate and analyze polymer nanocomposites by adding nanoparticles of varying size and concentration as fillers. The aim is to improve the characteristics and reformation of thermal, electrical, and mechanical properties of existing polymeric insulation materials. However, certain inconsistencies are prevalent with results obtained for polymer nanocomposites. A comprehensive review is presented based on available literature focussing on the advancement from polymeric insulating materials to polymeric nanocomposites and its impact on partial discharge resistance, surface charging, and tracking and erosion resistance. It is observed that the weight percent and dispersion of nano- or micro-sized particles into the base polymer matrix governs the performance of polymer composites. At higher filler loading, resistance to partial discharge and tracking and erosion decreases as a result of the agglomeration of fillers, whereas resistance to surface charge accumulation increases at higher filler loading because the formation of shallow traps increases the charge decay rate. It is suggested that when both micro- and nanofillers are mixed in proper proportion, micro–nano hybrid composites provide better performance than composites filled with only nano- or microfillers.","PeriodicalId":36855,"journal":{"name":"IET Nanodielectrics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/nde2.12019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137801478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Polypropylene-based nanocomposites for HVDC cable insulation 高压直流电缆绝缘用聚丙烯基纳米复合材料

IF 2.7

IET Nanodielectrics Pub Date : 2021-04-05 DOI: 10.1049/nde2.12018

Muhammad Adnan, Zulkurnain Abdul-Malek, Kwan Yiew Lau, Muhammad Tahir

{"title":"Polypropylene-based nanocomposites for HVDC cable insulation","authors":"Muhammad Adnan, Zulkurnain Abdul-Malek, Kwan Yiew Lau, Muhammad Tahir","doi":"10.1049/nde2.12018","DOIUrl":"10.1049/nde2.12018","url":null,"abstract":"Cross-linked polyethylene (XLPE) is commonly used as an insulation material in power cables. Due to the recent advancements in the field of high voltage power transmission and distribution, there is a need for novel cable insulation materials that have high performance, recyclability and high working temperature as alternatives for the conventional XPLE-based insulation materials. Polypropylene (PP) shows excellent properties and has drawn considerable attention as a potential high voltage direct current (HVDC) insulation material. Therefore, the development of PP-based HVDC cable insulation with improved electrical, thermal and mechanical properties is important in discovering a potentially recyclable cable insulation material. Due to the remarkable development in the field of nanodielectrics, nanotechnology can be a promising solution for enhancing the overall dielectric properties of PP-based insulation materials. This review presents the important aspects of PP-based nanocomposites for HVDC cable insulation with a special focus on understanding the effects of various parameters of nanofillers on the dielectric properties of PP-based HVDC cable insulation. Based on the gathered information, future perspectives for improving the dielectric properties of PP-based nanocomposites for HVDC cable are provided.","PeriodicalId":36855,"journal":{"name":"IET Nanodielectrics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2021-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/nde2.12018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46476070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Switching transient-based state of Ampere-hour prediction of lithium-ion, nickel-cadmium, nickel-metal-hydride and lead acid batteries used in vehicles 车用锂离子电池、镍镉电池、镍氢电池和铅酸电池的开关暂态安培小时预测

IF 2.7

IET Nanodielectrics Pub Date : 2021-03-30 DOI: 10.1049/nde2.12017

Debopoma Kar Ray, Tamal Roy, Surajit Chattopadhyay

引用次数: 2

Investigation of water droplet-initiated discharges on laser textured silicone nano-micro composites using UHF and fluorescent fibre techniques 利用超高频和荧光纤维技术研究激光织构硅纳米微复合材料的水滴引发放电

IF 2.7

IET Nanodielectrics Pub Date : 2021-03-29 DOI: 10.1049/nde2.12016

Somasundaram Karthikeyan Amizhtan, Parvathy Ganesh, Balaji Srinivasan, Nilesh J. Vasa, Sivanandam Aravindan, Ramanujam Sarathi

{"title":"Investigation of water droplet-initiated discharges on laser textured silicone nano-micro composites using UHF and fluorescent fibre techniques","authors":"Somasundaram Karthikeyan Amizhtan, Parvathy Ganesh, Balaji Srinivasan, Nilesh J. Vasa, Sivanandam Aravindan, Ramanujam Sarathi","doi":"10.1049/nde2.12016","DOIUrl":"10.1049/nde2.12016","url":null,"abstract":"Laser texturing has been carried out on the surface of the silicone nano-micro composites to achieve super hydrophobic properties, and water droplet-initiated Corona discharge studies were carried out. The Corona inception voltage (CIV) exhibits considerable enhancement with increase in the nano filler content under DC voltage compared with AC voltage. The corona inception voltage is high with the textured surface and is found to have direct correlation with contact angle of the composite specimen. The Corona inception voltage was measured using Ultra-high frequency (UHF) and fluorescent fibre techniques. It is observed that the fluorescent fibre technique is more sensitive in identifying discharges. Frequency domain analysis of UHF signal shows a dominant frequency at 1 GHz and for fluorescent signal, the spectral content is in the range of DC to 10 MHz. The rise time and pulse width of the UHF signal increases with the increase in the nano filler in composite material. The energy content of UHF/fluorescent signal due to discharges shows similar trend with its increase in energy with variation in its magnitude of the signal formed. The pulse width of fluorescent signal formed due to water droplet-initiated discharges under AC and DC voltage is almost the same, and with the textured specimen it is quite low than the non-textured material.","PeriodicalId":36855,"journal":{"name":"IET Nanodielectrics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/nde2.12016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45562851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nano-dielectrics in biosystems 生物系统中的纳米电介质

IF 2.7

IET Nanodielectrics Pub Date : 2021-03-25 DOI: 10.1049/nde2.12014

Jingjing Xu, Fan Wang, Yihan Song, Song Ge, Shengyong Xu

引用次数: 0