Dielectric and Energy Storage Properties of the Heterogeneous P(VDF-HFP)/PC Composite Films

Zhao, Xiaojia; Peng, Guirong; Zhan, Zaiji

doi:10.1007/s11837-016-2116-6

Cited by 7 publications

(5 citation statements)

References 28 publications

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“…FTIR spectra of the combined hybrid films were examined in the range of 450∼4000 cm –1 to validate further the impact of PC content on the structure of PC/PVDF hybrid films, and the findings are depicted in Figure (b). As seen in the figure, the telescopic vibrational absorption peaks attributed to the carbonyl group (CO) are detected at 1770 cm –1 for the linear polymer PC, at 1506 and 1592 cm –1 for the aromatic ring in the PC molecular chain, and at 2875 and 2967 cm –1 for the methyl group (−CH 3 ). ,, The results of IR spectra showed that the above absorption peaks began to appear and gradually increased with the increase in PC content, which demonstrated that PC was added to PVDF.…”

Section: Resultsmentioning

confidence: 82%

“…As seen in the figure, the telescopic vibrational absorption peaks attributed to the carbonyl group (C�O) are detected at 1770 cm −1 for the linear polymer PC, at 1506 and 1592 cm −1 for the aromatic ring in the PC molecular chain, and at 2875 and 2967 cm −1 for the methyl group (−CH 3 ). 6,34,44 The results of IR spectra showed that the above absorption peaks began to appear and gradually increased with the increase in PC content, which demonstrated that PC was added to PVDF.…”

Section: Resultsmentioning

confidence: 98%

“…Like the linear polymer PMMA, PC (polycarbonate) can achieve higher breakdown strengths (∼600 kV/mm) at room temperature and is stable over time. As a widely used engineering thermoplastic, PC has the advantages of high insulation performance, high mechanical strength, and easy processing. , Therefore, it becomes possible to prepare a coblended composite film of PC and PVDF by a coblending strategy. This can not only improve PVDF’s room-temperature breakdown power but also reduce the energy loss of the composite film and enhance the charging and discharging efficiency.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced Energy Storage Performance of Doped Modified PC/PVDF Coblended Flexible Composite Films

Zhang

Yan

Zhang

et al. 2023

ACS Appl. Electron. Mater.

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The rapid development of the clean energy industry has given great impetus to energy-efficient storage and conversion technologies. Film capacitors have attracted much attention because of their higher charge and release rates, greater energy density, and extended life cycle. But the lower recharging and discharging efficiency and insulation properties pertaining to the electricity used in capacitors limit the improvement of their energy storage performance. In this paper, the addition of the linear polymer polycarbonate (PC) to polyvinylidene fluoride (PVDF) through a blending strategy and the subsequent acquisition of the high-dielectric nanofiller titanium dioxide (TiO2) to the blended matrix is expected to achieve synergistic optimization of the insulation and polarization properties, thereby enhancing the energy storage performance of the mixed media. The findings show that great storage of energy productivity (U e ≈ 11.43 J/cm3, η ≈ 57.08%) is obtained for 40 vol % PC/PVDF-x wt %-TiO2 at an optimum field strength of 450 kV/mm when the TiO2 doping amount x is 0.9 wt %. Compared with pure PVDF, its U e is improved by 2.3 times, η by 1.2 times, and E b by 1.5 times. This research presents a viable answer for applying PVDF-based high-energy-storage film capacitors.

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Energy Storage Performance of Doped Modified PC/PVDF Coblended Flexible Composite Films

Zhang

Yan

Zhang

et al. 2023

ACS Appl. Electron. Mater.

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“…18 (PC)/PVDF composite media obtained by blending the linear polymer PC with PVDF and its derivatives through a simple blending strategy has excellent energy storage properties. 19 For example, Zhang 20 et al prepared PC/PVDF composite media by a coblending strategy. The binary mixed PC/PVDF material with 40 vol % linear polymer PC provides beneficial energy storage capabilities (U e ∼ 10.31 J/cm 3 , η ∼ 63.3%).…”

Section: Introductionmentioning

confidence: 99%

“…However, the high relaxation loss and conductivity loss of PVDF make it difficult to obtain high charge–discharge efficiency and excellent breakdown strength, which limits its application in the field of high energy storage film capacitors . It has been shown that the polycarbonate (PC)/PVDF composite media obtained by blending the linear polymer PC with PVDF and its derivatives through a simple blending strategy has excellent energy storage properties . For example, Zhang et al prepared PC/PVDF composite media by a coblending strategy.…”

Section: Introductionmentioning

confidence: 99%

Sandwich-Structured PC/PVDF-Based Energy Storage Dielectric with Inorganic Doping to Regulate Electric Field Distribution

Zhang,

Yan,

Zhang

et al. 2024

J. Phys. Chem. C

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With the goal of "dual carbon", China's clean energy industry has witnessed a rapid development period. As a key component of AC−DC conversion of clean energy, the usage of film capacitors is widespread in many fields such as photovoltaic power generation, wind power generation, and new energy vehicles. Therefore, how to develop film capacitors with high power density is the key to realizing energy savings and low-carbon environmental protection. In this paper, a P-X-P sandwichstructured composite dielectric with polycarbonate (PC) as the outer insulation layer and x wt % TiO 2 −PC/polyvinylidene fluoride as the middle polarization layer was designed and prepared by solution calendering and a hot pressing process, and its dielectric properties and insulation performance were optimized synergistically. It was found that when the TiO 2 content of the intermediate layer was increased to 3 wt %, the P-3-P sandwichstructured film obtained outstanding energy storage capacity (U e ∼ 11.69 J/cm 3 , η ∼ 93.86%) at a high field strength of 510 kV/mm. At the same time, the P-3-P sandwich-structured film has good charge−discharge characteristics (1.74 μs, 1.01 MW/cm 3 ). It has a rapid pace of energy release and outstanding cycle stability after 50,000 charge−discharge cycles. The P-3-P sandwich-structured film provides excellent possibilities for the construction of high storage capacity film capacitors and could be used to its full potential in the field of film capacitors with high storage of energy.

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Enhanced dielectric properties of poly(vinylidene fluoride) by introducing copper indium disulfide quantum dots

Zhao

Yin

et al. 2023

J Mater Sci: Mater Electron

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Dielectric and Energy Storage Properties of the Heterogeneous P(VDF-HFP)/PC Composite Films

Cited by 7 publications

References 28 publications

Enhanced Energy Storage Performance of Doped Modified PC/PVDF Coblended Flexible Composite Films

Enhanced Energy Storage Performance of Doped Modified PC/PVDF Coblended Flexible Composite Films

Sandwich-Structured PC/PVDF-Based Energy Storage Dielectric with Inorganic Doping to Regulate Electric Field Distribution

Enhanced dielectric properties of poly(vinylidene fluoride) by introducing copper indium disulfide quantum dots

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