Modified <scp>Si<sub>3</sub>N<sub>4</sub></scp> filler enhancing the energy storage performance and thermal stability of a P(<scp>VDF</scp>‐<scp>HFP</scp>) based composite
Abstract To improve the high‐temperature stability of poly(vinylidene fluoride hexafluoropropylene) P(VDF‐HFP)‐based composite film for its potential application in energy storage, the modified silicon nitride (mSi 3 N 4 ) nanoparticles are fabricated using silane coupling agent (KH‐570) and introduced into P(VDF‐HFP). When the mass fraction of mSi 3 N 4 is 7.5 wt%, the recoverable energy density ( W rec ) of the mSi 3 N 4 / P(VDF‐HFP) composite film reaches to 1.79 J/cm 3 under a 125 MV/m electric field, which is 82.7% higher than pure P(VDF‐HFP). Interestingly, the dielectric properties of mSi 3 N 4 /P(VDF‐HFP) show a considerable thermal stability at a high‐frequency ranging from −20 to 160°C, providing an effective approach for preparing energy storage composites working for high‐temperature environments.
Authors
- Zi Yang (ORCID: https://orcid.org/0009-0000-5050-0394)
- Weimin Xia (ORCID: https://orcid.org/0000-0002-8151-9618)
- Xinyi Zhang (ORCID: https://orcid.org/0000-0002-4431-5966)
- Shiyu Zhang (ORCID: https://orcid.org/0009-0008-5766-6061)
- Xiaofang Zhang (ORCID: https://orcid.org/0000-0002-7181-4234)
Institutions
- Xi’an University (CN)
- Xi'an University of Technology (CN)
Publication Details
- Journal
- Journal of Applied Polymer Science
- Published
- 2024-11-12
- DOI
- https://doi.org/10.1002/app.56472
- Primary Topic
- Dielectric materials and actuators
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Education Department of Shaanxi Province
- National Key Research and Development Program of China