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典型文献
High Conduction Band Inorganic Layers for Distinct Enhancement of Electrical Energy Storage in Polymer Nanocomposites
文献摘要:
Dielectric polymer nanocomposites are considered as one of the most promising candidates for high-power-density electrical energy storage applications.Inorganic nanofillers with high insulation property are frequently introduced into fluoropolymer to improve its breakdown strength and energy storage capability.Normally,inor-ganic nanofillers are thought to introducing traps into polymer matrix to suppress leakage current.However,how these nanofillers effect the leakage current is still unclear.Meanwhile,high dopant(>5 vol%)is prerequisite for distinctly improved energy storage performance,which severely deteriorates the processing and mechanical property of poly-mer nanocomposites,hence brings high technical complication and cost.Herein,boron nitride nanosheet(BNNS)layers are utilized for substantially improving the electrical energy storage capability of poly vinylidene fluoride(PVDF)nanocomposite.Results reveal that the high conduction band minimum of BNNS produces energy barrier at the interface of adjacent layers,preventing the electron in PVDF from passing through inorganic layers,leading to suppressed leakage current and superior breakdown strength.Accompanied by improved Young's modulus(from 1.2 GPa of PVDF to 1.6 GPa of nanocomposite),significantly boosted discharged energy density(14.3 J cm-3)and charge-discharge efficiency(75%)are realized in multilayered nanocomposites,which are 340 and 300%of PVDF(4.2 J cm-3,25%).More importantly,thus remarkably boosted energy storage performance is accomplished by marginal BNNS.This work offers a new paradigm for developing dielectric nanocomposites with advanced energy storage performance.
文献关键词:
作者姓名:
Yingke Zhu;Zhonghui Shen;Yong Li;Bin Chai;Jie Chen;Pingkai Jiang;Xingyi Huang
作者机构:
Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing,State Key Laboratory of Metal Matrix Composites,Department of Polymer Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,People's Republic of China;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Center of Smart Materials and Devices,Wuhan University of Technology,Wuhan 430070,People's Republic of China;Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology,University of Bremen,28359 Bremen,Germany
引用格式:
[1]Yingke Zhu;Zhonghui Shen;Yong Li;Bin Chai;Jie Chen;Pingkai Jiang;Xingyi Huang-.High Conduction Band Inorganic Layers for Distinct Enhancement of Electrical Energy Storage in Polymer Nanocomposites)[J].纳微快报(英文),2022(09):221-236
A类:
fluoropolymer
B类:
High,Conduction,Band,Inorganic,Layers,Distinct,Enhancement,Electrical,Energy,Storage,Polymer,Nanocomposites,Dielectric,nanocomposites,are,considered,one,most,promising,candidates,high,power,density,electrical,energy,storage,applications,nanofillers,insulation,property,frequently,introduced,into,its,breakdown,strength,capability,Normally,thought,introducing,traps,matrix,leakage,current,However,how,these,effect,still,unclear,Meanwhile,dopant,vol,prerequisite,distinctly,improved,performance,which,severely,deteriorates,processing,mechanical,hence,brings,technical,complication,cost,Herein,boron,nitride,nanosheet,BNNS,layers,utilized,substantially,improving,vinylidene,fluoride,PVDF,Results,reveal,that,conduction,band,minimum,produces,barrier,interface,adjacent,preventing,electron,from,passing,through,inorganic,leading,suppressed,superior,Accompanied,by,Young,modulus,GPa,significantly,boosted,discharged,efficiency,realized,multilayered,More,importantly,thus,remarkably,accomplished,marginal,This,work,offers,new,paradigm,developing,dielectric,advanced
AB值:
0.599318
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