Enhancing thermal stability of P(VDF-HFP) based nanocomposites with core-shell fillers for energy storage applications

Zhou, Ling; Zhou, Yufei; Shi, Yuchen; Chen, Tianwei; Zou, Tenghao; Zhou, Dongxiang; Fu, Qiuyun

doi:10.1016/j.compscitech.2019.107934

Cited by 34 publications

(16 citation statements)

References 57 publications

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“…Inorganic-organic nanocomposites reveal property improvements particularly in their mechanical and thermal stability compared to conventional materials. [8][9][10][11][12] For these materials lifetime improvements are possible by the introduction of self-healing properties. .…”

Section: Introductionmentioning

confidence: 99%

Induction heating induced self-healing of nanocomposites based on surface-functionalized cationic iron oxide particles and polyelectrolytes

Oberhausen

Kickelbick

2021

Nanoscale Adv.

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Section: Introductionmentioning

confidence: 99%

Induction heating induced self-healing of nanocomposites based on surface-functionalized cationic iron oxide particles and polyelectrolytes

Oberhausen

Kickelbick

2021

Nanoscale Adv.

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“…Thermal stability and frequency stability are the key to the practical application of capacitors in harsh environments. [ 22 ] Figure 10A,B show the D – E circuit and energy storage properties of 3‐P@B3/PEN composites from 25°C to 126.5°C, and the working conditions are the electric field of 120 kV/mm and the frequency of 10 Hz. Figure 10C,D show the D – E circuit and energy storage performance of 3‐P@B3/PEN composites from 5 to 80 Hz.…”

Section: Resultsmentioning

confidence: 99%

High power density at low electric fields in dopamine modified barium titanate based poly(arylene ether nitrile) based composites

Zeng

Tang

et al. 2021

Vinyl Additive Technology

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Owing to their excellent dielectric properties and energy storage performance, polymer‐based composites have shown great potential in the application of pulse energy storage capacitors and electrostatic capacitors. In this study, BaTiO3 (BT) particles with different sizes were modified with dopamine to prepare core–shell structured BT particles (PDA@BT), and then the poly(arylene ether nitrile) (PEN)‐based PDA@BT/PEN composites were prepared. As a common biological material, dopamine has a variety of functional groups which can be used to improve the compatibility between the fillers and the matrix. Moreover, the movement of the carriers at the interface of the composites is limited and the loss is reduced. The composites with an optimized filler size illustrate a high energy density of 1.37 J/cm3 at 160 kV/mm, which nearly reaches up to the energy density of biaxially oriented polypropylene (BOPP) at low electric field. In addition, the composites have the superior power density of 1.88 MW/cm3 with a fast discharge time of 0.138 μs.

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“…Meanwhile, the results of phase-field simulations confirm that dispersed parallel nanosheets in the polymer matrix is the most effective method to reduce the inhomogeneity of local electric field distribution [15,16]. Nevertheless, the most widely utilized 2D fillers, hexagonal boron nitride nanosheets (BNNS) (ε r = 3-5) and γ-Al 2 O 3 (ε r = 9-10), have intrinsic low ε r and give rise to the limited ε r of nanocomposites [17,18]. Moreover, small-size nanosheets cannot be arranged in order along the vertical electric field direction by the flow extension method, which limits the further improvement of the E b and U e of the composites.…”

Section: Introductionmentioning

confidence: 92%

High Breakdown Strength and Energy Storage Density in Aligned SrTiO3@SiO2 Core–Shell Platelets Incorporated Polymer Composites

et al. 2021

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Dielectric nanocomposites with high energy storage density (Ue) have a strong attraction to high-pulse film energy-storage capacitors. Nevertheless, low breakdown strengths (Eb) and electric displacement difference (Dmax − Drem) values of nanocomposites with incorporating the randomly distributed high dielectric constant additions, give rise to low Ue, thereby hindering the development of energy-storage capacitors. In this study, we report on newly designed SrTiO3@SiO2 platelets/PVDF textured composites with excellent capacitive energy storage performance. SrTiO3@SiO2 platelets are well oriented in the PVDF when perpendicular to the electric field with the assistance of shear force in the flow drawing process to establish microscopic barriers in an inorganic–polymer composite that is able to substantially improve the Eb of composites and enhance the Ue accordingly. Finite element simulation demonstrates that the introduction of the highly insulating SiO2 coating onto the SrTiO3 platelets effectively alleviates the interface dielectric mismatch between filler and PVDF matrix, resulting in a reduction in the interface electric field distortion. The obtained composite film with optimized paraelectric SrTiO3@SiO2 platelets (1 vol%) exhibited a maximum Dmax − Drem value of 9.14 μC cm−2 and a maximum Ue value of 14.4 J cm−3 at enhanced Eb of 402 MV m−1, which are significantly superior to neat PVDF and existing dielectric nanocomposites.

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Enhancing thermal stability of P(VDF-HFP) based nanocomposites with core-shell fillers for energy storage applications

Cited by 34 publications

References 57 publications

Induction heating induced self-healing of nanocomposites based on surface-functionalized cationic iron oxide particles and polyelectrolytes

Induction heating induced self-healing of nanocomposites based on surface-functionalized cationic iron oxide particles and polyelectrolytes

High power density at low electric fields in dopamine modified barium titanate based poly(arylene ether nitrile) based composites

High Breakdown Strength and Energy Storage Density in Aligned SrTiO3@SiO2 Core–Shell Platelets Incorporated Polymer Composites

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