Details

Autor(en) / Beteiligte

• Liu, Leipeng
• Yun, Haochen
• Xiong, Jie
• Wang, Jiangtao
• Zhang, Zhicheng

Titel

Enhanced energy storage properties of all-polymer dielectrics by cross-linking

Ist Teil von

• Reactive & functional polymers, 2023-11, Vol.192, p.105699, Article 105699

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Polymer dielectrics with good energy storage properties are need for advanced electric devices. Herein, a new class of all organic dielectric cross-linkable polymers, poly(methyl methacrylate-glycidyl methacrylate) (P(MMA-GMA)) prepared by radical polymerization, is reported. A comprehensive investigation was conducted to examine the impact of the cross-linked monomer GMA content on the energy storage properties. The crosslinking significantly enhances the breakdown strength and suppresses the leakage currents. Consequently, the copolymer P(MMA-GMA) containing 7 mol% GMA exhibits a high discharge energy density of 16.5 J/cm3 at 750 MV/m, coupled with a high discharge efficiency of 82%. Even at an elevated temperature of 100 °C, it still possesses a good energy performance of a discharge energy density of 12.1 J/cm3 and a relatively high efficiency of 80.1% at 650 MV/m. This study offers a simple and effective approach to fabricating all-organic polymer dielectrics with good energy storage properties. [Display omitted] •A new class of cross-linkable dielectric polymer P(MMA-GMA) film were prepared.•Cross-linked P(MMA-GMA) polymer exhibits outstanding energy storage performances.•Cross-linking can enhances breakdown strength and suppresses leakage currents.