Design of All-organic Dielectrics for High-temperature Capacitive Energy Storage

Rui Wang; Zhao-Yu Ran; Li Meng; Qi Li

doi:10.1007/s10118-025-3545-x

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Design of All-organic Dielectrics for High-temperature Capacitive Energy Storage

Special Topic: Distinguished Young Scholars in Polymer Science | Updated：2026-07-01

- Design of All-organic Dielectrics for High-temperature Capacitive Energy Storage
- Design of All-organic Dielectrics for High-temperature Capacitive Energy Storage
- Chinese Journal of Polymer Science 2026年44卷第7期页码：1959-1983
- Affiliations：
  
  a.State Key Laboratory of Power System Operation and Control, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
  b.School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, China
- Author bio：
  
  qili1020@tsinghua.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 52525303, 92466301 and 52307025).;Qi Li is a professor in the Department of Electrical Engineering at Tsinghua University. He received his Ph.D. degree in materials science at Wuhan University of Technology. He was a postdoctoral fellow at the Department of Materials Science and Engineering of the Pennsylvania State University before joining Tsinghua University. His research interests include dielectric polymers for capacitive energy storage, smart dielectric materials, and ferroelectric polymers for energy conversion and harvesting.The authors declare no interest conflict.
- DOI：10.1007/s10118-025-3545-x
  中图分类号：
- 收稿：2025-11-18，
  
  录用：2025-12-21，
  
  网络首发：2026-05-14，
  
  纸质出版：2026-07-05
- Accepted：
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Wang, R.; Ran, Z. Y.; Meng, L.; Li, Q. Design of all-organic dielectrics for high-temperature capacitive energy storage. Chinese J. Polym. Sci. 2026, 44, 1959–1983

Rui Wang, Zhao-Yu Ran, Li Meng, et al. Design of All-organic Dielectrics for High-temperature Capacitive Energy Storage[J]. Chinese Journal of Polymer Science, 2026, 44(7): 1959-1983.
Wang, R.; Ran, Z. Y.; Meng, L.; Li, Q. Design of all-organic dielectrics for high-temperature capacitive energy storage. Chinese J. Polym. Sci. 2026, 44, 1959–1983 DOI： 10.1007/s10118-025-3545-x.

Rui Wang, Zhao-Yu Ran, Li Meng, et al. Design of All-organic Dielectrics for High-temperature Capacitive Energy Storage[J]. Chinese Journal of Polymer Science, 2026, 44(7): 1959-1983. DOI： 10.1007/s10118-025-3545-x.

摘要

This work reviews all-organic dielectric development for high-temperature capacitive energy storage

with a focus on multiscale-structural strategies in decoupling thermal stability from insulation.

Abstract

Polymer film-based dielectric capacitors are required to operate stably and efficiently at extreme temperatures in the emerging applications including underground oil and gas extraction

electrified transportation and space exploration

etc

. However

the commercial benchmark polymeric dielectric

biaxially oriented polypropylene

can only withstand up to 105 °C

and its electrical insulation performance deteriorates sharply with increasing temperature. Recently

numerous reported strategies

such as surface engineering of polymer films and polymer-inorganic particle blending have reached considerable achievements in balancing the temperature capability and electrical insulation properties of polymeric dielectrics

but show less promise in production scale-up with respect to the all-organic dielectric systems. In this review

we summarize the recent progress of polymer molecular structure design and all-organic composite systems towards high-temperature capacitive energy storage. The correlation of high-temperature capacitive energy storage performance and multi-level structures of all-organic dielectrics is established

and the effect of molecular structures on the charge transport behavior is analyzed. Moreover

the strategy of utilizing materials informatics to design the molecular structure of high-temperature polymers is introduced. Finally

the advantages and limitations of all-organic polymer dielectrics in the field of high-temperature capacitive energy storage are summarized

and the future development directions are highlighted.

关键词

Keywords

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