Full
Outline
In recent years， capacitors have become widely utilized as core components in modern electrical equipment and electronic facilities， due to advancements in electric power systems， communication， and the electronic industry. However， film capacitors cannot meet the demand for future device miniaturization due to limitations in energy storage density and temperature resistance. Therefore， the advancement of dielectric materials with high energy storage density is crucial for achieving compact and lightweight dielectric capacitors in the future. This review offers a succinct summary of the research progress in polymer-based film capacitor dielectric materials. It begins by discussing the energy storage materials used in polymer-based film capacitors， including their structural properties， dielectric properties， and energy storage mechanisms. The study focuses on various dielectric materials， such as polypropylene-based， polyimide-based， polyvinylidene fluoride， polystyrene-based， and polytetrafluoroethylene-based. It also includes an analysis and summary of the advantages and disadvantages of each material，which includes the improvement of its energy storage density， the regulation of its temperature resistance， and the optimization of its preparation process. Finally， in view of some existing shortcomings and deficiencies of the current polymer-based film capacitor energy storage materials， the development direction of polymer-based dielectric materials is prospectively discussed.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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