The effects of chlorotrifluoroethylene (CTFE) units on the dielectric and energy storage properties of P(VDF‐CTFE)
Abstract Polyvinylidene fluoride‐based ferroelectric polymers are favoured in the field of advanced high‐energy‐storage dielectric capacitors due to their strong spontaneous polarisation and high dielectric constant (εr). It has been confirmed that the ferroelectric behaviour and energy storage perf...
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| Format: | Article |
| Language: | English |
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Wiley
2024-03-01
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| Series: | IET Nanodielectrics |
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| Online Access: | https://doi.org/10.1049/nde2.12075 |
| _version_ | 1827329800952348672 |
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| author | Haoran Xie Xi Yuan Hang Luo Dou Zhang |
| author_facet | Haoran Xie Xi Yuan Hang Luo Dou Zhang |
| author_sort | Haoran Xie |
| collection | DOAJ |
| description | Abstract Polyvinylidene fluoride‐based ferroelectric polymers are favoured in the field of advanced high‐energy‐storage dielectric capacitors due to their strong spontaneous polarisation and high dielectric constant (εr). It has been confirmed that the ferroelectric behaviour and energy storage performance can be regulated by copolymerising polyvinylidene fluoride with bulky monomers such as chlorotrifluoroethylene, and hexafluoropropylene. Past research based on these copolymers mostly focused on the preparation of composites, yet with limited discussion on the effect of copolymer composition. In this work, a series of P(VDF‐CTFE) films with different chlorotrifluoroethylene contents were fabricated through a solution‐casting method. The introduction of bulky chlorotrifluoroethylene units can tune the polymer crystal structure and crystallinity, alter the state of polymer chains and the response of dipoles to electric fields, and lead to dramatic changes in dielectric properties, breakdown strength (Eb), and energy storage density (Ue). As a result, the copolymer with a chlorotrifluoroethylene content of 15 wt% obtained the best overall performance, and the Ue reached 16.73 J/cm3 at 650 kV/mm. This work provides a basis for the optimisation of the properties of polyvinylidene fluoride‐based ferroelectric polymers and the development of high Ue dielectric. |
| first_indexed | 2024-03-07T15:47:25Z |
| format | Article |
| id | doaj.art-5c32c56235d3414396d892e6f878c07b |
| institution | Directory Open Access Journal |
| issn | 2514-3255 |
| language | English |
| last_indexed | 2024-03-07T15:47:25Z |
| publishDate | 2024-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Nanodielectrics |
| spelling | doaj.art-5c32c56235d3414396d892e6f878c07b2024-03-05T04:28:50ZengWileyIET Nanodielectrics2514-32552024-03-0171182510.1049/nde2.12075The effects of chlorotrifluoroethylene (CTFE) units on the dielectric and energy storage properties of P(VDF‐CTFE)Haoran Xie0Xi Yuan1Hang Luo2Dou Zhang3State Key Laboratory of Powder Metallurgy Central South University Changsha ChinaState Key Laboratory of Powder Metallurgy Central South University Changsha ChinaState Key Laboratory of Powder Metallurgy Central South University Changsha ChinaState Key Laboratory of Powder Metallurgy Central South University Changsha ChinaAbstract Polyvinylidene fluoride‐based ferroelectric polymers are favoured in the field of advanced high‐energy‐storage dielectric capacitors due to their strong spontaneous polarisation and high dielectric constant (εr). It has been confirmed that the ferroelectric behaviour and energy storage performance can be regulated by copolymerising polyvinylidene fluoride with bulky monomers such as chlorotrifluoroethylene, and hexafluoropropylene. Past research based on these copolymers mostly focused on the preparation of composites, yet with limited discussion on the effect of copolymer composition. In this work, a series of P(VDF‐CTFE) films with different chlorotrifluoroethylene contents were fabricated through a solution‐casting method. The introduction of bulky chlorotrifluoroethylene units can tune the polymer crystal structure and crystallinity, alter the state of polymer chains and the response of dipoles to electric fields, and lead to dramatic changes in dielectric properties, breakdown strength (Eb), and energy storage density (Ue). As a result, the copolymer with a chlorotrifluoroethylene content of 15 wt% obtained the best overall performance, and the Ue reached 16.73 J/cm3 at 650 kV/mm. This work provides a basis for the optimisation of the properties of polyvinylidene fluoride‐based ferroelectric polymers and the development of high Ue dielectric.https://doi.org/10.1049/nde2.12075dielectricenergy storage performanceferroelectric polymersP(VDF‐CTFE) |
| spellingShingle | Haoran Xie Xi Yuan Hang Luo Dou Zhang The effects of chlorotrifluoroethylene (CTFE) units on the dielectric and energy storage properties of P(VDF‐CTFE) IET Nanodielectrics dielectric energy storage performance ferroelectric polymers P(VDF‐CTFE) |
| title | The effects of chlorotrifluoroethylene (CTFE) units on the dielectric and energy storage properties of P(VDF‐CTFE) |
| title_full | The effects of chlorotrifluoroethylene (CTFE) units on the dielectric and energy storage properties of P(VDF‐CTFE) |
| title_fullStr | The effects of chlorotrifluoroethylene (CTFE) units on the dielectric and energy storage properties of P(VDF‐CTFE) |
| title_full_unstemmed | The effects of chlorotrifluoroethylene (CTFE) units on the dielectric and energy storage properties of P(VDF‐CTFE) |
| title_short | The effects of chlorotrifluoroethylene (CTFE) units on the dielectric and energy storage properties of P(VDF‐CTFE) |
| title_sort | effects of chlorotrifluoroethylene ctfe units on the dielectric and energy storage properties of p vdf ctfe |
| topic | dielectric energy storage performance ferroelectric polymers P(VDF‐CTFE) |
| url | https://doi.org/10.1049/nde2.12075 |
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