Enhanced high-temperature energy storage density of polypropylene-based materials by micro-crosslinked structure design with N-type organic semiconductor

Hongbo Liu; Lu Cheng; Zhiyuan Li; Jiakai Zeng; Wenfeng Liu; Shengtao Li

doi:10.1049/hve2.12522

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Enhanced high-temperature energy storage density of polypropylene-based materials by micro-crosslinked structure design with N-type organic semiconductor

更新时间：2026-03-24

- Enhanced high-temperature energy storage density of polypropylene-based materials by micro-crosslinked structure design with N-type organic semiconductor
- Enhanced high-temperature energy storage density of polypropylene-based materials by micro-crosslinked structure design with N-type organic semiconductor
- 高电压（英文） 2025年10卷第3期
- 作者机构：
  
  State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University,Xi'an,China
- 作者简介：
- 基金信息：
- DOI：10.1049/hve2.12522
  中图分类号：
- 纸质出版：2025
- 稿件说明：
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Hongbo Liu, Lu Cheng, Zhiyuan Li, 等. Enhanced high-temperature energy storage density of polypropylene-based materials by micro-crosslinked structure design with N-type organic semiconductor[J]. 高电压（英文）, 2025,10(3).

Hongbo Liu, Lu Cheng, Zhiyuan Li, et al. Enhanced high-temperature energy storage density of polypropylene-based materials by micro-crosslinked structure design with N-type organic semiconductor[J]. High Voltage, 2025, 10(3).
Hongbo Liu, Lu Cheng, Zhiyuan Li, 等. Enhanced high-temperature energy storage density of polypropylene-based materials by micro-crosslinked structure design with N-type organic semiconductor[J]. 高电压（英文）, 2025,10(3). DOI： 10.1049/hve2.12522.

Hongbo Liu, Lu Cheng, Zhiyuan Li, et al. Enhanced high-temperature energy storage density of polypropylene-based materials by micro-crosslinked structure design with N-type organic semiconductor[J]. High Voltage, 2025, 10(3). DOI： 10.1049/hve2.12522.

摘要

In this study

the authors proposed a promising structure design

the micro-crosslinked polypropylene (PP)

to enhance the high-temperature energy storage density. With the grafting of 1

12-tetrachlorinated perylene-N-2-aminoethyl acrylate-N′-dodecylamine-3

10-tetracarboxylic bisimide (PTCDA) onto PP molecules

the obtained PP-g-PTCDA achieved a superior energy storage density of 2.34 J/cm3 at 120°C with the discharge efficiency above 90%

which was 585% higher than that of neat PP. The great enhancement

on the one hand

originated from the micro-crosslinked structure

since the restricted molecular motion can lead to the suppression of electrons' hopping across the molecular chains. On the other hand

deep traps were also introduced in PP-g-PTCDA

which restricted the electrons' hopping along the molecular chains simultaneously. This work provided an orientation to enhance the energy storage density at an elevated temperature of 120°C.

Abstract

In this study

the authors proposed a promising structure design

the micro-crosslinked polypropylene (PP)

to enhance the high-temperature energy storage density. With the grafting of 1

12-tetrachlorinated perylene-N-2-aminoethyl acrylate-N′-dodecylamine-3

10-tetracarboxylic bisimide (PTCDA) onto PP molecules

the obtained PP-g-PTCDA achieved a superior energy storage density of 2.34 J/cm3 at 120°C with the discharge efficiency above 90%

which was 585% higher than that of neat PP. The great enhancement

on the one hand

originated from the micro-crosslinked structure

since the restricted molecular motion can lead to the suppression of electrons' hopping across the molecular chains. On the other hand

deep traps were also introduced in PP-g-PTCDA

which restricted the electrons' hopping along the molecular chains simultaneously. This work provided an orientation to enhance the energy storage density at an elevated temperature of 120°C.

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